| ta4a SOUTH 88m COURT napp Sanitary Metal Window Trim PATENTED OCT. 185 1921 ALL RIGHTS RESERVED FIRE PROOF - - - VERMIN PROOF EASY TO KEEP CLEAN... - INEXPENSIVE ushwit h ss nO place (or vermin AGiapp KNAPP BROTHERS aad MANUFACTURING CO. 1343 So. 55th Court CHICAGO, ILL. S. REGISTERED This Catalogue and its Illustrations Copyright 1923 by Knapp Bros. Mfg. Co. Vo Architects, 2ngincens and Building Crattsmen Knapp Sanitary Metal Window Trim and Stools by this time require no introduction to the archi- tects, engineers or building craftsmen. Introduced three years ago, they were received with im- mediate approval, showing a long-felt want had been met and since then an ever-increasing demand has indicated their practical value. The experiences gained in the first years have led to improve- ments in the manufacturing and marketing methods which Knapp Brothers Manufacturing Com- pany now wish to present to the trade at large. Style No. 302 Window Trim Appearance and Comparative Value Sanitary Features A Time Saver In Fimshing The Building Cost This style provides a method of trimming a window opening on the inside with the reveal lining and trim face in one continuous piece and finishing flush with the plaster walls. This trim can be used with any kind or type of window frame, either wood or metal. It can also be used as a door trim. AVENE Libtnil COLUMBIA UNIVERSIT' This method of trim produces in general appearance after decoration the same effect as when the plaster is returned in the reveal to the window frame. It has been found actually cheaper in the average window to trim it in this fashion than to return the reveals in plaster, due to the care and consequent high labor charge which is necessary in preparing and plastering the narrow strip of reveal. ; , Because this trim is plastered-in without projecting mouldings or ledges it allows absolutely no place for vermin to lodge or nest. At the jamb angles a cove fitting is provided which makes it possible to keep these angles free of dust or dirt with minimum labor. A damp cloth wiped over the trim periodically keeps it in a sanitary, cleanly condition. When the time it takes to wait for plaster to dry and then to trim out in the usual manner is considered it becomes apparent that the use of the Knapp Sanitary Trim saves weeks in the completion date of the building. This trim is ready for decoration as soon as the plaster is. Sanitary Trim and Stools are sold on the unit foot basis, prices varying according to the depth of reveal and the gauge of the metal. A fixed charge is made for each fitting and the attaching of same. These costs are available to architects on any specific building. Everything taken into consideration, this trim is much less costly than any other method on the market offering equivalent value. Kind and Gauge of Metal Used Method of Installation Time Consumed In Erection Grouting Under Stools Priming Coat Style No. 302 Used as a Stool Only Style No. 304 Flat Stool Style No. 305 Splay Stool All trim and stools are made of special tight coat galvanized steel only. For the average reveal of about 4 inches or less (in a thirteen- inch wall) 20 gauge metal is sufficiently heavy for jambs and heads. Stool pieces should always be made of 18 gauge metal. Where re- veals are deeper than 4 inches, 18 gauge should invariably be used for all parts of the trim. Specifications should be carefully worded as to whether 20 or 18 gauge steel is desired. The contractor is required to furnish us with a schedule of the windows, giving the exact dimensions between what are to be the finished jamb lines and the finished heads and stools and the depth of reveal. The four pieces comprising the jambs, head and stool are made to exact size, and the corner fittings are attached at the factory and the joints made practically invisible. The material is sent knocked-down (to make it easy to handle and erect and to save freight and cartage costs) to the job, where all the contractor has to do is to assemble the pieces and set the whole in place. The contractor has to prepare the opening with the necessary grounds beforehand. Actual records show that two average men can assemble and erect two complete open- ings per hour. The trim is erected before plastering and acts as a ground line for the plasterer to work to. lt is important to have the stool pieces set in a bed of cement or mortar grout so that it is solid beneath. Instructions on the manner of doing this are furnished to the con- tractor. Specifications should call for this grout under all stools. All window trim, stools and fittings are primed with our own special galvanic primer. This prmier kills the oily surface of the galvanizing and sticks tightly to the metal. This primer is very tough and will not chip or flake off and can not be readily scraped off. It is water, acid and alkali-proof. Its principal function is to afford a base coat for subse- quent decorations and any kind of paint or enamel finishes can be applied over the primer. It is not of itself intended fora finish. It is usual to paint the trim after plastering the same color as the walls. Stools are frequently, for practical reasons, given a dark colored finish. These finishes can be done in connection with other interior painting or decorating and by the same contractor. Where window reveals are exceptionally deep it is sometimes thought economical and ad- visable to plaster the reveals and use a metal stool only. In these cases we provide a special cove corner fitting which allows our bull-nose corner head to be used to round and protect the edges of the opening. In some cases a flat stool with a projecting drip nose is desired. Our Style No. 304 Stool is intended for these cases. The same general principles of construction and erection apply to this design as to the others. The Style No. 302 used for jambs and heads with the Style No. 304 Stool is a popular combination. This stool is like the Style No. 302 except that the reveal is on a splayed angle 30 de- grees from the horizontal. This style is used where it is necessary to prevent the stool from being used as a shelf. FLUSH METAL WINDOW TRIM STYLE 302 »> FITTINGS Patented. ANY REQUIRED REVEAL DEPTH CZ COVE CDRNER FITTIN CEMENT Grout UNDHBR STOOL lana nose either VY V2 or % alls PERFORATED 4 FOR PLASTER il KEY PLASTER SCALE 76 INCH=1INCH NOTE- Window trim is made up to requirements of openings and sent to the job knocked down but of exact size ready to set in place. Corner fittings attached at factory < Z ; | oD é -\ SANITARY be \ COVE FITTING fe is Ne | STOOL PIECE See o> (2 SUNK INVISIBLE Or” stove Bours e A es : a . ce . i , DETAIL ELEVATION OF CORNER FITTING SCALE Ye FULL SIZE LE Ge OO | EET EDIE SIO DELLS FOOD EORTC, JAMB 5 PIECE SASH | PLASTER | in pee ae \WooD STOP COVE CORNER FITTING 2 PLAN SECTION THRU JAMB OF TYPICAL BOX FRAME SCALE YeIncH2 J incH THESE CORNER FITTINGS IN ANY REQUIRED DEPTH OF REYEAL “. PLASTER as) [eer ELE Vaso Neen OF INSIDE OF WINDOW Scope Gauge and Kind of Metal Erection Grout Priming limish Detail Illustration of Sanitary Cove Angle between Stool and Jamb Pieces SUGGESTIVE SPECIFICATION Where Style No. 302 is used to Trim Entire Opening All windows in outside walls of all rooms which are to be plastered shall be trimmed with Knapp Brothers Manufacturing Company’s Flush Metal Trim, Style No. 302, including sanitary cove corner fittings in all angles of the openings. The depth of reveals on the inside will be as shown by details. The curvature of the nosing of the trim shall be IV inches radius (or 34 inch if desired). The jamb and head pieces shall be formed of No. 20 U. S. Gauge tight-coat galvanized steel except where depth of reveal exceeds four inchs, in which case only No. 18 U. S. Gauge steel shall be used. The stool piece shall be formed of No. 18 U. S. Gauge steel only. The corner fittings shall be made of the best grades of cast iron, free of flaws. Contractor will furnish manufacturers with exact dimensions between what will be the finish lines from jamb to jamb and from head to stool. Material will be accurately sized at the factory and fittings attached there with counter-sunk stove bolts, heads soldered over so as to be practically invisible and trim will thus be shipped knocked down, ready to erect in place. Wood grounds required by details will be furnished in place by this contractor. Follow manufacturer’s instructions as to ‘assembly and erection. The stool pieces shall be set in a bed of soft grout of wall be solid beneath. plaster or cement so that when set it will Window trim shall be printed on its exposed face at the factor y with grey galvanic primer. Fittings will be dipped in primer. After plastering is completed, painter will clean off plaster cakes from surface of metal trim, putty all exposed counter-sunk screw holes, and paint to match walls. Stools will be painted a dark color as directed by Architect. WINDOW STOOL STYLE 302 »»> FITTING USED WITH PLASTERED JAMBS. Patented BULL NOSE CORNZR BEAD , PLASTER” SGI CON Saleh Rwme ose SCALE IQINCH = TINCH NOTE - This detail recommended where window reveals are exceptionally deep warranting PLAN SECTION THRU JA MB the plastering of the jambs. SCALE Z@INCH= LincH The curvature of the nose of this trim NOME: Any style of bullnose corner bead eo ape F és Cdn Be Vsed on Jambs ond Heads: is either I'/z or % radii. either 3/," or 145" radius Nose PS eis : Svs =, le est a = - BULL NOSE CORNER BEAD MITERED OR COPED AT CORNERS (Z | COUNTER SUNK INVISIBLE } STOVE BOLTS us| ECCENTRIC . COVE CORNER' | FITTING an , AMNION OF INSIDE OF WINDOW, DETAIL (ELEVA TTONGORSCORNER SEIT IGNG SCALE Ye FULL SIZE. Scope Gauge and Kind of Metal Erection eo” Priming Finish Detail Illustration showing how Bull-Nose Corner Bead is used with Metal Stool SUGGESTIVE SPECIFICATION Where Style No. 302 is used as a Stool only All windows in outside walls of all rooms which are to be plastered shall be provided with Knapp Brothers Manufacturing Company’s Style No. 302 Metal Window Stool, including sanitary corner fittings in the angles. The depth of reveals on the inside of these windows will be as detailed and returned in plaster, but the corner angles shall be protected with Knapp Brothers Bull-Nose Corner Bead Style No. 600 (or other styles as illustrated on details). The stool shall be formed from No. 18 Gauge U. S. tight-coat galvanized steel. The sanitary corner fittings shall be made of the best grade of cast iron, free of flaws, and moulded to the profile of the stool and also to act as a saddle for the bead as detailed. Contractor will furnish manufacturer with exact dimensions between what will be finished jamb lines, and stools will be accurately sized at the factory and fittings attached there with counter-sunk stove bolts, heads soldered over so as to be practically invisible. Stools will thus be shipped ready to erect in place. Follow manufacturer's instructions in erecting stools. Bull-nose beads will be erected plumb and straight, sitting tight on top of sanitary stool fittings and will be neatly coped or mitered at head and jamb intersections. Bead will be substantially nailed with cement-coated nails. Both stools and beads shall be erected prior to plastering and will act as a screed for the plasterer. Wood grounds required by details will be furnished in place by the contractor. The stools shall be set in a bed of soft grout of wall plaster or cement so that when set it will be solid beneath. The exposed face of stool and beads will be primed at factory with grey galvanic primer. Fittings will be dipped in primer. After plastering is completed, painter will clean off plaster cakes from surface of metal trim, putty all counter-sunk screw holes, and paint to match walls. Stools will be painted a dark color as directed by Architect. Patented WINDOW STOOL STYLE 304 »™ 302 STYLE HEAD» JAMBS gs Sy A aN oe aS ay So | NDEFIR STOOL ANY REQUIRED REVEAL DEPTH f | Seen eee © EIEIO \ / ‘ PERFORATED FOR PLASTER KEY PLASTER Sie tlONS hoe sero alee SCALE %BINCH= 1INCH tS feenstes: : : Strip of metal Yath PEAN= Sf Gi lO NS THe Ucar OF TYPICAL BOX FRAME SCALE 3 1NCH = TINCH COVE CORNERS / FITTING THESE CORNER FITTINGS IN ANY REQUIRED DEPTH OF REVEAL PLASTER | PLASTER i 5 : | a ¥ 2 STOOL PIECE Proyects '/2" beyond plaster 302 JAMBS AND HEAD = — ——_—_—_—_—_; = tee } Flush with plaster—, 2 END : Z ND & ! Ss eee se Ot iat ’ CLosuRE-‘ -) CLOsU™, tig SOS sO aistT oo Le oe EBEVADaEO IN DEV AoE EVA MONO teGOL NTE? Sete ee aan ston SCALE ep FULL SIZE Scope Gauge and Kind of Vetal Erection Grout Priming Finish Illustration of Windows with Style No. 304 Stool SUGGESTIVE SPECIFICATION Where Style No. 304 Stool is used with Style No. 302 Heads and Jambs All windows in outside walls of rooms which are to be plastered shall be provided with Knapp Brothers Manufacturing Company’s Style No. 304 Flat One-Piece Metal Window Stool and Style No. 302 Flush Metal Trim for the jambs and heads, including the sanitary cove corner fittings at the upper angles. The depth of reveal of these windows will be as detailed. The stool is to be notched out at the jambs as shown by plan-section detail of a typical window. The jamb pieces are to set thereon. The jamb and head pieces shall be formed of No.20 U. S. Gauge tight-coat galvanized steel except where depth of reveal exceeds four inches, in which case only No. 18 U. S. Gauge steel shall be used. The stool piece shall be formed of No. 18 U. S. Gauge steel only. The corner fittings shall be made of the best grades of cast iron, free of flaws. Contractor will furnish manufacturers with exact dimensions between what will be the finish lines from jamb to jamb and from head to stool. Material will be accurately sized at the factory and fittings attached there with counter-sunk stove bolts, heads soldered over so as to be practically invisible and trim will thus be shipped knocked down, ready to erect in place. Wood grounds required by details will be furnished in place by this contractor. Follow manufacturer's instructions as to assembly and erec- tion. The stool piece shall be set in a bed of soft grout of wall plaster or cement so that when set it will be solid beneath. Window trim shall be primed on its exposed face at the factory with grey galvanic primer. Fittings will be dipped in primer. After plastering is completed, painter will clean off ‘plaster cakes from surface of metal trim, putty all counter-sunk screw holes, and paint to match walls. Stools will be painted a dark color as directed by Architect. FLUSH METAL WINDOW TRIM STYLE 302 > FITTINGS DI EDA INPCONNEG TION Withee rie sAoH 302 JAMB RADIOS OF NOSE EITHER V," oR my” Aq) s+ PERFORATED is] FOR PLASTER SECON SCALE MincH = TINCH JSAMB PIECE ice Wi Melk SiASial ing onap makes + Cg) SANITARY Meer VE FITTIN De Oa . , SYVOOWK I wipsere 1 nee INVISIBLE sel Want ve < STOVE BOLT Pa AS a : J DETAIL ELEVATION OF CORNER FITTING SCALE Yo FULL SIZE This system of Metal Window Trim can be used equally well with any make of Steel Sash. Pate nied hr) CEMENT “NX (7) MEZAL LATH ove "PLASTER. PLAN SECTION THRU JAMB SCALE %INcHe | INCH RL FITTINGS RED DEPTH o> PLASTER. y aa COVE CORNER aw FITTING aR ELEVATION. OF INSIDE OF WINDOW This illustration shows a typical detail. Illustration of Style No. 304 Flat Stool used with Steel Sash Rapp MIMIC TAA \ROTAE” AIA Knapp Brothers Manufacturing Co. make a large line of Sanitary Metal Trim, including therein the articles represented and listed below. Literature thereon will be sent on application. Flush Metal Window Trim. Cove Corner Fitting for window trim. Flush Joint Plate for base. Inside Corner Fitting for base. Sanitary Plinth Fitting for base. Bull-Nose Corner Fitting for base. I. Flush Metal Picture Mould. . Il. Flush Metal Chair Rail. . Ill. Flush Metal Cove Base. . IV. Flush Metal Door Casing. Outside Corner Fitting for chair rail. Inside Corner Fitting for chair rail. End Stop Fitting for chair rail. OMmANADWNBWNH — V. Bull-Nose Metal Corner Bead. The principal articles in the line will be found listed in Sweet's Architectural Catalogue ee KNAPP BROS. MFG. CO., 1343 South 55th Court, CHICAGO, ILL. p Sanitary Metal Bas _ Styles 202-205-501 - 204 - 203 7 Photograph taken in a United States Public Health Service Hospital, showing Sanitary Flush Metal Base and Casings. James A. Wetmore, Acting Supervising Architect Knapp Brothers AGiapp Manufacturing Co. 55th Court at 14th St. CHICAGO, ILE. ME, EAI Re ITT Introductory @ N this brochure on Sanitary Metal Base, glittering generalities and mere | VL Ip sales propaganda are eliminated and the attempt is made to present in brief - 5 and condensed form such information and facts as will enable the architect, the engineer or the builder to use these materials understandingly and to give the draughtsman and specification writer the details necessary to the preparation of working drawings and specifications. re oni S=5 Knapp Sanitary Base designs are no innovation. They have been used for ten years. Improvements have been made to meet varying conditions of construction and to overcome criticism which grew out of earlier experiences. Knapp Brothers Manufacturing Company is the originator and pioneer of the San- itary Metal Trim Industry. Its study and effort is confined to this art and dedicated to its future improvement and development. Constructive criticisms and suggestions are invited from all sources and will be given grateful and careful attention. Brief, To-the-Point Facts About Sanitary Metal Base MATERIALS. They are manufactured of tight-coat galvanized steel. GAUGE. The 202, 205 and 501 styles are made from the both 18-gauge and 20-gauge; the 203 and 204 styles from 20-gauge only. PRIMER PAINT. The exposed surfaces are primed at the factory with a galvanic primer which gives a flat finish and becomes a bond over which any type of decorative finish, such as enamel, stain, paint, etc., can be spread and will adhere to the metal. FITTINGS AT CORNERS, DOORWAYS, ETC. A complete line of cast iron fittings is made to form inside and outside corners; returns or plinths at doors; and end stops for other terminating points. The corner fittings are made for square corners; 34” radial curved corners or 1!” radial curved corners. .The fittings for doorways are either the Sanitary Plinth (used only in connection with Sanitary Casings) ; the plinth block for wood casings or the end stop which provides a means for stopping the base and returning the cove to the wall. All fittings are easily attached and necessary machine screws and bolts are furnished for the purpose. Splice plates are furnished to make neat splice joints. CURVED WORK. Metal Base is designed primarily for straight runs. Curved work can be had to meet special conditions, but as curved work is difficult hand work and is expen- sive, it is best to avoid it where possible. Each case has to be treated as an individual problem. STOCK LENGTHS AND HEIGHTS. All styles of base are furnished either 4” or 6” , high and in stock lengths of 10’. They can, however, be furnished in 6’, 7’, 8’ or 9 lengths at a 10% extra cost. TOOLS AND ERECTION INSTRUCTIONS. Tools for the proper erection of base are fur- nished when ordered. Complete instructions are furnished the erecting contractor. In large installations a competent supervisor is sent, if requested, to assist the contractor in erection problems se SPECIFICATIONS. Suggested brief specifications are given herewith. These suggestions can be enlarged upon as the specification writer may see fit. EAT PAGE TWO 1G, cAI) “qk | My muoe tig irl PARK } f Flush Metal Cove Base (atentea) Style No. 202 CEMENT OR “CONCRETE : ae SECTION 14 FULL SIZE LUSH WITH _ PLASTER. 202 STYLE BASE Showing Sanitary Plinth Fitting at the Door This base is made of 18 or 20-gauge galvanized steel. Fittings are furnished to form corners and returns at door, etc. (See page seven. ) Used largely with cement or composition finished floors. Its use is not recommended with wood floor joist construction. No wood grounds neces- sary. This base acts as screed ground for plaster and 202 STYLE BASE i finished floor. obs 5 Te oe ee ee oie : : Pelee Cel coNene tr Wal Lae is ede oe the floor attachment eR) ei Bend Poh ica flange 4", 2" or 1” deep to ellow Does not shrink, war aX a eA Gg < for different thickness of finished : P, flooring materials. crack or break. SUGGESTED SPECIFICATION When Style 202 is to be used SCOPE, OF USE. Metal (Gove) Baseis: to be used at the intersection of floors and walls or partitions throughout the building except as otherwise called for. (State exceptions here.) TYPE OF BASE. The base to be used shall be Knapp Brothers Manu- facturing Company Style 202 Flush Cove Base 4” high (or 6” if de- sired), made of 20 S. gauge tight-coat galvanized steel (or 18 gauge if desired), and the base shall be primed on the exposed face at the factory with gray galvanic primer. FITTINGS. At all corners both interior and exterior in all rooms and spaces provide %4” radius corner fittings which shall be attached to ends of base by concealed stove bolts. (See page 7 for other styles of corner fittings.) At all door openings provide a Sanitary Flush Plinth (or other style of terminating fitting) which shall be similarly attached to the ends of base. At other terminating points, such as at the head of stairs, provide an end-stop fitting. All fittings to be made of cast iron, free of flaws, and dipped in primer at the factory. ERECTION. Base shall be erected before plastering and shall be so set as to form a ground screed for plaster and for the finished floor. Care shall be taken to have same perfectly level and in true plane with the plaster. Where necessary to compensate for irregularities in the rough wall, wedge out behind upper nailing flange with wood wedges. Base shall be substantially nailed at frequent intervals with cement coated nails as indicated by detail. In fitting base to spaces, measurements shall be made and base lengths sawed to size on the job. For this purpose use Saw and Mitre Box furnished by manufacturers. Fittings before mentioned will be attached as per manufacturer’s instructions, and contractor will use the punch block made for locating holes in base flange for stove bolts. GROUT. After base is in place grout behind same with a mixture of Portland cement and sand mixed | to 3 to about the consistency of a thick sirup and poured with a grouting can through the holes in the upper flange of base. (Note: Grouting is not essential to a good base job. In fireproof buildings it is recommended for heat resistance and for general solidity.) PROTECTION FOR BASE. Base shall be protected against damage during building operations. When plastering, lay building paper or other protecting materials along the cove to catch plaster droppings. Upon completion of plastering and floor work remove all plaster or cement from the base, and where necessary for this purpose employ steel wool. FINISH. When finishing and painting, contractor shall give the metal base a coat of enamel undercoater and two coats of hospital enamel in colors as selected taking care to stripe the top and bottom of base in straight, even line. (Other finishes can be used.) AAT PAGE THREE Atiapp IT Qo Sanitary Metal Cove Base Nae 7 (ye ee PLASTER AE eee rh) tA, ee we vk f ee ATOR OF o13p rh psencen / FORLPUAS FE po y ots 4 eet Bes He Sf OW VY OR Li 3 en irighy/ la ig if fp v kot Me al FAL PRYOR Xi va g 0 oe ON ER WOOD FLOOR4 too - Vv va e Y y SECTION 14 FULL SIZE 1G, SANITARY, METALS PAS Patent (Pending) Style No. 205 NAILED DIRECT TO PARTITION OR WALL COVE MEMB SCREWED TO Ft STYLE 205 BASE Showing Adjustable Cove Member and Corner Fittings This base has the flush-with-plaster feature of Style 202, but has an adjustable cove member which allows regulation to shrinkage or settlement in the floor. Its use is recommended with wood floor joist construction. SUGGESTED SPECIFICATION When Style 205 is to be used SCOPE. OF USE. Metal Cove Base is to be used at the intersection of floors and walls or partitions throughout the building except as otherwise called for. (State exceptions here.) TYPE OF BASE. The base to be used shall be Knapp Brothers Manufacturing Company Style 205 two member Flush Cove Base 4” high (or 6” if desired), made of 20 U. S. gauge tight-coat gal- vanized steel (or 18 gauge if desired) and the base shall be primed on the exposed face at the factory with gray galvanic primer. FITTINGS. and spaces where base is used, provide %” radius two member Cove Fittings. The upper member of the fitting to be attached to the upper member of the base, the Cove member to be attached to the Cove member of the base. At all corners, both exterior and interior, in all rooms At all door openings provide a Sanitary Flush Plinth (or other style of terminating fitting), which shall be similarly attached to the ends of base. At other terminating points, such as at the head of stairs, pro- vide an end-stop fitting. All fittings to be made of cast iron, free of flaws and dipped in primer at the factory. ERECTION. The upper fiush member is to be erected before plastering and is to be set to act as a ground screed for plaster and must be in true plane therewith. Care must be taken to have it parallel with the fioor and so that the cove member will lap at least 34” over. Where necessary to compensate for irregularities in the rough wall, wedge out behind nailing flange with wood wedges. Base shall be substantially nailed at frequent intervals with cement coated nails, as indicated by detail. The cove member will not be erected until after the finished floor is laid and scraped. This member will be screwed to the floor, but tight contact shall be made with the upper member. In fitting base to spaces, measurements shall be made and base lengths sawed to size on the job. For this purpose use Saw and Mitre Box furnished by manufacturers. Fittings, before mentioned, will be attached as per manufacturer's instructions, and contractor will use the punch block made for locating holes in base flange to receive bolts. GROUT. After base is in place grout behind upper member of same with a mixture of Portland cement and sand mixed | to 3 to about the consistency of a thick sirup and poured with a grouting can through the holes in the upper flange of base. (Note: Grouting is not essential to a good base job. In fireproof buildings it is recom- mended for heat resistance and for general solidity.) PROTECTION FOR BASE. Base shall be protected against damage during building operations. Upon completion of plastering and floor work remove all plaster or cement from the base and where necessary for this purpose employ steel wool. FINISH. When finishing and painting, contractor shall give the metal base a coat of enamel undercoater and two coats of hospital enamel in colors as selected, taking care to stripe the top and botom of base in straight even line. (Other finishes can be used.) HTT eee eee eee PAGE FOUR Atiapp TTT 4+ or 6” LINOLEUM pr CeEmenT ow: lp. :WOOD FLopE... 5 SECTION 146 Note Method of Attachment FULL) SIZE ACTS AS PLASTER GROUND CEMENT OR © ITT BOTTOM FLANGE OF BASE STYLE NAILED TO PARTITION © OR WALL ~ ISH WITH PLASTER NO PLACE FOR ERMIN TO LODGE CEMENT OR PLASTER : GIDE CORNER COMPOSITION ) ING FLOORS FLUSH WITH FLOOR FLUSH METAL COVE BASE Showing an Exterior Corner with the Bull-Nose Corner Fitting used with a Bull-Nose Corner Bead Style 501 Base is the same in all particulars as Base Style 202 except for the difference in the lower flange which is designed in 501 to be attached to the wall or partition instead of to the floor. SUGGESTED SPECIFICATION When Style 501 is to be used SCOPE OF USE. Metal Cove Base is io be used at the intersection of floors and walls or partitions throughout the building except as otherwise called for. (State exceptions here.) TYPE OF BASE. The base to be used shall be Knapp Brothers Manufacturing Company Style 50] Flush Cove Base 4” high (or 6” if desired), made of 20 U. S. gauge tight-coat galvanized steel (or 18 gauge if desired), and the base shall be primed on the ex- posed face at the factory with gray galvanic primer. FITTINGS. At all corners, both interior and exterior, in all rooms and spaces provide 34” radius corner fittings, which shall be at- tached to ends of base by concealed stove bolts. (See page 7 for other styles of corner fittings.) At all door openings provide a Sanitary Flush Plinth (or other style of terminating fitting), which shall be similarly attached to the ends of base. At other terminating points, such as at the head of stairs, pro- vide an end-stop fitting. All fittings to be made of cast iron free of flaws and dipped in primer at the factory. ERECTION. so set as to form a ground screed for plaster and for the finished floor. Care shall be taken to have the same perfectly level and in true plane with the plaster. Where necessary to compensate for irregularities in the rough wall, wedge out behind nailing flange Base shall be erected before plastering and shall be with wood wedges. Base shall be substantially nailed at frequent intervals with cement coated nails as indicated by details. In fitting base to spaces, measurements shall be made and base lengths sawed to size on the job. For this purpose use Saw and Mitre Box furnished by manufacturers. Fittings before mentioned will be attached as per manufacturer's instructions, and contractor will use the punch block made for locating holes in base flange for stove bolts. GROUT. After base is in place grout behind same with a mixture of Portland cement and sand mixed | to 3 to about the consist- ency of a thick sirup and poured with a grouting can through the holes in the upper flange of base. (Note: Grouting is not essential to a good base job. In fireproof buildings it is recommended for heat resistance and for general solidity.) PROTECTION FOR BASE. Base shall be protected against damage during building operations. When plastering, lay building paper or other protecting materials along the cove to catch plaster drop- pings. Upon the completion of plastering and floor work remove all plaster or cement from the base and where necessary for this pur- pose employ steel wool. FINISH. When finishing and painting, contractor shall give the metal base a coat of enamel undercoater and two coats of hospital enamel in colors as selected, taking care to stripe the top and bottom of base in straight even line. (Other finishes can be used.) CTT PAGE FIVE Ma IAA -ea oe MATA Sanitary Metal Cove Base ...4.., Style No. 204 SCREWED TO FLO SECTION 15 FULL SIZE Two Grounds Required for the 6 inch Base STYLE 204 BASE Showing Adjustable Cove Member and Corner Fittings This. base is largely used with wood joist con- struction or in other conditions where shrinkage or settlement is liable to be excessive. No.39 FLUSH CASING : The adjustable cove allows the base to be regu- lated to the shrinkage. This base is well adapted to office buildings, where opportunity is afforded to run telephone wires around the room concealed behind the base. The specification follows exactly the same line o as that suggested for Style 203 except for the 204 STYLE BASE lower member, which should be specified as being Showing Sanitary Plinth Fitting at the Door attached to the floor. HTT PAGE SIX cA ITT IH {ltt MT BRE LINOLEUM OR CARPET aN SECTION 14 FULL SIZE This base is largely used over linoleum or carpet, as it makes a good edge binder for these PINOEEY TOR CARPET “ materials, and provides a close contact therewith. Two Grounds Required for 6” Base 203 STYLE BASE Showing Corner Fittings SUGGESTED SPECIFICATION When Style 203 is to be used SCOPE OF USE. Metal Cove Base is to be used at the intersection of floors and walls or partitions throughout the building except as otherwise called for. (State exceptions here.) DYPE TOR BASE The! base. to) be used (shall be Knapp Brothers Manufacturing Company Style 203 one member Cove Base 4” high (or 6” if desired), made of 20 U. S. gauge tight-coat galvanized steel, and the base shall be primed on the exposed face at the factory with zray galvanic primer. FITTINGS. At all corners, both interior and exterior, in all rooms and spaces, provide square corner fitting which shall be attached to ends of base by flush head machine screws. At all door openings provide a Sanitary Plinth (or other style of terminating fitling), which shall be attached to ends of base by a flush head machine screw. At other terminating points, such as at the head of stairs, pro- vide an end-stop fitting. All fittings to be made of cast iron, free from flaws, and dipped in primer at the factory. ERECTION. %”x2” wood grounds, located as shown by detail, shall be furnished and set by the contractor where base is to be used. Also set blocking at intervals at floor line to hold base in true plane-—see detail. The base shall be set after finished linoleum (or carpet) is laid and be screwed tight to the ground. At all screw points, however, a wood block will be used over the ground to prevent depression in the base at these points. In placing base over linoleum (or carpet) see that a close contact is made therewith. Base will be screwed to wood grounds with flush head No. 6 screws, spaced about 18” O. C._ Punching holes for these screws in base will be done at factory. Where necessary to punch any addi- tional holes on the job same shall be done with punch block fur- nished by manufacturers. In fitting base to spaces, measurements shall be made and base lengths sawed to size on the job. For this purpose use Saw and Mitre Box furnished by manufacturers. Fittings before mentioned will be attached as per manufacturer's instructions, and contractor will use the punch block made for locating holes. FINISH. When finishing and Painting, contractor shall give the STYLE 203 BASE metal base a coat of enamel undercoater and two coats of hospital 3 "i G ae enamel in colors as selected, taking care to stripe the top and Showing Sanitary Plinth Fitting at the Door bottom of base in straight even line. (Other finishes can be used.) CAI PAGE SEVEN Corridor in St. Elizabeth Hospital, Lincoln, Neb. J. M. Nachtigall, Architect Corridor in U. S. Public Health Service Hospital J. A. Wetmore, Supervising Architect NM PAGE EIGHT IAA ee AA Aig METAL CASINGS STYLES 34-35-36-37-39-40-41-70-71-72-73-74-75-76-77-78 ALL CASINGS FURNISHED IN STOCK LENGTHS — 6’-7’-7'4”-8'-9’-10'-12/ Knapp Metal Casing is an important part of the complete line of Knapp Sanitary Metal Trim. This fact is attested to by the wide use of Knapp Metal Casing buildings everywhere. It is es- pecially adapted for use in all kinds of public buildings, hotels, hospitals and schools. in fine Nite Paster Key ss. - Close Mitered Joints | Moulding Applied to | Cover Joint Sanitary Flush Plinth —_—___—_—_—_eee— — _________eessss—C—i The accompanying drawing, in addition to indicating in a small measure the handsome simplicity of Knapp Flush Door Casing, also suggests its sound structural merits. The drawings and explanations on the following pages describe the various styles of Knapp Metal Casing in de- tail. This Circular and Its Illustrations Copyright 1926, by Knapp Bros. Mfg. Co. Page Two SAapp SEAR TRS) AMINA a a STYLES 39 AND 36 Zu PANEL N° 39 CASING COUNTERSONK SCREW en a ae CASTE. aa N° 36 CASING This folder on Knapp Flush Metal Casing method being more generally used than ever is designed to present in brief and con- before, due to the low cost, simplicity of detail, densed form such facts as will interest the archi- sanitary considerations and low upkeep. tect, engineer, builder, draftsman, and specifi- cation writer. Knapp Flush Metal Casings have been used for ten years. This The Casings on this erected in the wood The plaster is brought up to finish page are place of grounds. folder describes them as they are today—em- bodying a number of improvements — which have been evolved by years of use. B* Se ¥ The Knapp Metal Casings herein _ illus- trated, allow the door, window, vent grilles, recessed cabinet, or in- terior borrowed parti- tion lights, to be trimmed flush with the plastered surface, a FLUSH WITH FLOOR CASING flush therewith. After the plaster has dried, the wood frames are placed in the rough openings in the usua! manner and either Style No 24). or sNoww2o Moulds are cover the used to intervening joint as illustrated. They are made for grounding the plaster to either a 1% inch or 34, inch thickness. Aapp LAMINA Ny o i} tly STYLE.37 OVAL HEAD SCREW Ne 37 CASING aN WW DOOR. - X. DAWES eee ——— ; < N° 37 cASING In Casings, Styles No. 37 and No. 39, an extending plaster key flange bridges the rough buck, allowing a plaster bond at the point where it is most needed. Casing, Style No. 36, is designed for lathed parti- tions or other places where the plaster key flange is unnecessary. practical. All of these casings are made of extra tight coat gai: vanized steel, in 26, 24 and 20 gauge, except No. 37, NERA 5 pas which is made in 20 gauge bs Nese tates | only, and the exposed face is primed at the _ factory with our special grey gal- vanic primer. CASING Sica 40-4] ‘CASING “STYLES 36-31-39 \--NMel width of Door | - The sanitary plinth fitting for use with Casings, Styles Nos. 36, 37 and 39, herein 7 of Door Dimension /rside Ff / fers illustrated, can be used in N connection with our own h Cove Metal Base, but are 3 also a desirable termination for flush cove, cement, com- position or Terrazzo Base. These plinths are furnished 4 inches and 6 inches high. SECTION ELEVATION To Apbive AT MITERING DIMENSIONS ADD TO NET WIDTH AND HEIGHT OF All Casings are sold in DOOL THE DIMENSIONS QUESTIONED(P) stock lengths of 6’, 7’, 7’4”, SASZ Peer ac cee as LO COXs: OO. oboe ee RPEASTE RCs IN ABOVE DIAGRAMS 8’, 9" 10? and 12’, and are cut to length on the job in an ordinary miter box. Page Three ‘ SITAR ~ Fics mae Were soe S Frequently, however, it has been found more eco- nomical to have them cut and mitered to exact sizes at the factory, a service which can be given at very little extra expense. We urge that this be done where A diagram showing how to order mitered casings is shown in this folder. It is desirable to use door checks where any type of flush finish is used. Our Casings are no excepticn, but we guarantee that even without checks our Casings will be less likely to show plaster cracks than _ other types due to our designs. These Casings can be fur- nished for curved head openings. When this is de- sired, special quotations can be given for furnishing curved pieces. In the use of these Cas- ings for doors, it is highly important to have the rough buck solidly anchored against jar. We strongly advise the use of our own buck anchor. Information will be sent on request. Page Four Aiapp a If ms inicio Ne eA ; CON i AAD) i y My y \\ \" a Knapp Sanitary Flush Metal Casings — Styles 40 and 41 Furnished in Stock Lengths of 6’, 7’, 7’4’, 8’, 9’, 10’, 12” Made for both 14” and 34” thicknesses of Plaster VANIOES Strong Hemmed Edge N° 41 Note- Tight Contact Due To Arch aes POP L MST EOS rl eee ace ice eee ed oa Perforated, for plaster Keven. SESS aati SOROS EDEL SOE KK RS Oe PUASTE Di al mua . oe & ae FULL SIZE DETAILS No. 41 CASING WITH FLANGE FOR SOLID PARTITIONS No. 40 CASING WITHOUT FLANGE FOR LATH PARTITIONS SANITARY METAL CASINGS These casings are particularly ideal for trimming door open- ings, borrowed lights, vent grilles and other similar openings in partitions. They form a part of our complete system of SANITARY FLUSH METAL TRIM, but can also be used independently of FLUSH WITH METAL the rest of the line. PLASTER They are made from 24 and 26-gauge, extra-tight coat gal- vanized steel and the exposed face is primed with grey galvanic primer at the factory. They are sold in stock lengths mentioned above or can be mitered at factory and sent cut to given lengths for a trifle more. THEY ARE SELF-GROUNDING and are made for either &3 Yy-inch or 34-inch plaster thickness. The plinth fittings illustrated to the left can be used with our COVE METAL BASE, but they also make a desirable termina- tion for flush cove cement, composition, or terrazzo base. Bases Nee CRCING are furnished 4 inches or 6 inches high. Used with Sanitary Metal Plinth HA ILLUSTRATING A TRANSOM The left side of the illustration shows No. 41 Casing in place before plastering; the right side, after plastering. Note Plaster Key Flange. Page Five Uti METAL : LATH PARTITION @ -* No. 40 CASING Illustrating its use on a lathed partition, showing how the lath is brought up to the nailing flange. This casing is also used with wood lath or plaster board in the same manner. SUGGESTED SPECIFICATIONS FOR SANITARY METAL CASINGS SCOPE OF USE. All interior doors, borrowed lights, vent grilles and recessed cabinets are to be trimmed with KNAPP No. 41 (or, if on a lathed partition, No. 40,) Sanitary Flush Metal Casing. Note: If the Sanitary Plinth is desired, add the following here: “At all door openings provide KNAPP Sanitary Flush Plinth fittings (either 4 inches or 6 inches high) for use with (name the kind of base material). The casings will be set on top of these plinths. Casings shall be primed at the factory with grey galvanic primer.” PREPARATION. Before casing is erected THE ROUGH BUCKS MUST BE SECURELY AND SOLIDLY ANCHORED so as not to be loose in the partitions, as movement in the bucks will cause plaster cracking around the openings. Finished frames will be primed and set in place in the openings and protected by ordinary building paper before plastering. ERECTION. “After finished frames are in place, con- tractor will erect trim, taking care to NAIL CLOSE UNDER THE ARCH OF THE NOSE SO AS TO MAKE A TIGHT CONTACT WITH THE FRAME AND THE EDGE OF THE PLASTER KEY FLANGE MUST ALSO BE SECURELY NAILED TO THE PARTITION AT FREQUENT INTERVALS. Jamb pieces will be plumbed and head pieces leveled and mitered corners shall be neatly and tightly made so as to be inconspicuous. Where possible, contractor will furnish manufacturers with exact length dimen- sions and have pieces mitered at factory and shipped ready to erect. As this trim forms a ground for the plaster, care shall be taken to set casing with proper allowance for plaster thickness. When plastering, brown coat shall be forced well behind nose of casing and into per- forated keying flange. Finish coat shall be screeded off flush with casing. PROTECTION. Protect all jambs after erection with boards nailed temporarily about five feet high. Remove these on completion of plastering. FINISH. After plastering is completed, clear any plaster marks off from exposed surface and paint trim to match adjoining wall. Page Six Knapp Perforated “Widaflange” Casings STYLES No. 70-71-72-73-74-75-76-77-78 re 4" or 5" No. 70—24 gauge 4” ““WIDAFLANGE” CASING No. 75—26 gauge 5” “WIDAFLANGE” CASING No. 71—26 gauge 4” ““WIDAFLANGE” CASING No. 76—20 gauge 5” “WIDAFLANGE” CASING No. 72—24 gauge 4” “WIDAFLANGE” CASING No. 77—24 gauge 5” “WIDAFLANGE” CASING No. 73—26 gauge 4” ““WIDAFLANGE” CASING No. 78—26 gauge 5” “WIDAFLANGE” CASING No. 74—24 gauge 5” “WIDAFLANGE” CASING To meet the demand of a light weight, low priced casing, the following types in both 24 gauge and 26 gauge material are offered. PLASTER, : eae " é - eee SEONG NESS: ELAS TRERSK EY —‘~ Se] STAB USER RO aSRGMS No ZOWIDAFLANGE. CASING TILE OR Grp. |)> ; ise : ( \ PARTITION } SS oy . No.72 ‘WIDAFLANGE ™ TONES is chat meek: Saeeene CASING Scale of this drawing—full size. The erection of all ““O-G’’ type of Casing is greatly facilitated by the use of No. 45 Casing clip illustrated on last page. The tension of this special clip forces the nose of casing down in tight contact with finished jamb, to compensate the slight consequent shrinkage of the wood jamb. STYLES 34 AND 35 Page Seven QAUTION:— THE FINISH WOOD JAMB MUST BE OF NQ 34 CASING AND NO 34% GROUND Ww No SUCH WIDTH (VARYING WITH THICKNESS OF PARTITION AND PLASTER) AS TO KEEP THIS DIMENSION CONSTANT - IN OTHER WORDS THE FINISH WOOD JAMB MUST ALWAYS BE |” LESS IN WIDTH THAN THE THICKNESS OF THE PARTITION FROM FINISH PLASTER TO FINISH PLASTER WITH EXPANDED METAL FLANGE SOSSSARAAS CUT ANON see Bo DENSTER. “SPY DANDED METAL > abe POUT FLANGE WELDED. TO-GROOND’ oy WIDTH OF FINISH WOOD JAMB NOES OS COM SHINIG AND NO 352 GROUND Scale of this Drawing 34” = 1 ROUGH BUCK HIS DETAIL ILLUSTRATES A BUCK my cory aq as , , 2 p=S j A are 34 eee, 7 jedan) se? fase deri Por 2) aes x le ee creas Cb Oe 4 Bocaire Si Sx 2EX ADE FROM COMMON DIMENSIO oe o 9 TaN Tica Nie elias a 4 Ue ‘ e . . ae EY rt Qo ’ i; a Pe\e ¢ oF VOCE * . oF ° ne Zs 4 ” Showing Detail of Nos. 34 and 35 Door Casing and Nos. 34; and 35: Grounds (Patented ) This ““Two Member’ casing is a recent innovation, but beyond the experimental stage. It conforms to the requirements of many architects who prefer that the finished jamb and face member be installed after plastering and eliminating the necessity of an additional mould member to give it a finished appearance. Plinths to fit our various designs of metal base are available for use with these casings. Principal Features 1—Can be applied immediately after plastering is done—not necessary to wait a long time for plaster to dry out thoroughly nor to have the finished jambs in place before plastering. 2—The exposed surface is furnished with a special galvanic primer at factory. 3—Can also be furnished if desired with a vel- vety “Duco”’ finish in selected colors. 4—Screws may be countersunk or oval head as desired. 5—Made of heavy 16 gauge tight coat galvanized sheet steel, to prevent dishing of face member. 6—Furnished in 6’, 7’, 7’4”, 8’, 9’, 10’ and 12’ lengths. Page Eight Knapp Casing Clip No. 45 (Patent Applied For) { Detail Showing Application of No. 45 Case Clip. CASING CLIP No. 45 for expediting the installation of Nos. 40, 41, 70, 71, 74 and 75 Casings. This clip serves a double purpose, viz: (1) It acts as a tension spring forcing contact of the nose of casing with the finished wood jamb and holds it there. (2) The long slot in the clip permits the nail to be placed in just the desired spot which can be so placed without danger of denting the face of the casing. Care should be used to drive the nail down just tight enough to cause considerable tension. The clips should be placed about 18” apart or as conditions require in each particular case. Knapp Brothers Aftapp Mfg. Company ‘ \SANITA Y, w METAL ARS v/ 1343 So. 55th Court TRIM fh Chicago, Illinois Knapp Sanitary Metal Chair Rail and Fittings Furnished in stock lengths of 10 feet ” PLASTER CHAIR RAIL No. 300 Showing End Stop Fitting 5 Des Attached PLASTER’ sien - : > vat ay fe - 5. Lo Full Size Section This chair rail is made from 18 gauge galvanized interior and pees corners, both square and rounded steel and the exposed face is primed with grey gal- to #4” and ia radii. An end stop fitting is furnished vanic primer. Fittings of cast iron are furnished for for terminating ends. Suggestive Specification for Chair Rail Furnish and erect in all rooms and corridors KNAPP No. 300 PLAS- TERED-IN METAL CHAIR RAIL. This will be erected before plastering at height above floor as directed, and will be so set that the edges act as a screed line for plasterer. Chair rail will be securely nailed to construction at frequent intervals. All joints shall be neatly made, close, and inconspicu- ous, and joint plate will be used for this purpose. At all corners both in- side and out use cast iron corner fit- tings furnished for the purpose, same to be for 34” radius corners (or 114” radius or square). These fittings will be attached as instructed by a manufacturers. Fittings will be dipped in priming paint at the factory. At all door openings or other terminat- ILLUSTRATING TYPES OF FITTINGS ing ends use similar end stop fittings. USED WITH CHAIR RAIL No. 300 KNAPP BROTHER'S SANITARY? MANUFACTURING Co. SS awe an CHICAGO, ILL. 1343 So. 55th Court Ce ee 1 1 ee omen eee eH cee | | | | | | | | | || S| | Se || | ce jae |} ce | ce je} ee — |) |) || ee jf <4 Kl | || | | | | | | | || | | SL | | | || || |) || || || | |e | jm | Knapp Sanitary Butt-Nose Beads STYLES 604, 607, 14, 1414, 600, 603 Furnished in Lengths 6, 7, 8, 9 and 10 Feet Photograph showing Knapp Heavy-Duty Bull-Nose Bead Style 600 erected—ready for plaster in connection with Knapp Flush Sanitary Metal Base. SUGGESTED SPECIFICATION FOR BULL-NOSE CORNER BEAD: The contractor will furnish on all sharp vertical corners throughout the building KNAPP BROS. MFG. CO.’S Bull-Nose Corner Bead Style number (here in- sert catalog number of beads herein illustrated). These beads shall be made from tight coat gal- vanized metal and the exposed nose shall be primed at the factory with grey galvanic primer. All beads shall be erected before plastering plumb and straight and shall extend from top of base to ceiling. Flanges of beads shall be nailed to the con- KNAPP BROTHERS 55th Court at 14th Street et ee tf |e ff ef | | |S || || |) || | | | fa ff a || | | | | | struction at frequent intervals with large headed nails. Care shall be taken to get proper ground distance, as the beads are to act as a screed for the plasterer. (NOTE—In the cases of beads 604 and 607 specify that they shall be held to construction by the Hump Clip, spaced | foot apart.) Where necessary to splice lengths such splicing shall be done on the job by the contractor in a neat and workmanlike fashion. MANUFACTURING Co. CHICAGO, ILL. mt tm fj me | mm 5 | me 5 jm 4 | mf mj mf | mf | | | ee || me || | TOE ee eee ee eee ee ee te ef | | | | | | | | || || | | | | fa | | je ff) me fee ff | ee jj eee jf te) et | ete : Attapp TATA‘ eRT No. 144% BULL-NOSE BEAD Medium Length Flange. Nose 34” Radius. No. 14 BULL-NOSE BEAD Long Corrugated Flange. Nose 34” Radius. Patented. RAN ag OS IE Oe ILE SECTION No. 1416 SECTION No. 14 Full Size. Full Size. Furnished in Lengths of 6, 7, 8, 9, 10 and 12 Feet. eee ee eee a PAGE ONE No. 600 BULL-NOSE BEAD. NOSE 3%” RADIUS. Patented. Heavy Duty Reinforced Nose. Long Corrugated Flange. No. 603 BULL-NOSE BEAD. NOSE 116” RADIUS. Heavy Duty Reinforced Nose. Patented. Long Corrugated Flange. pessessSSSllnryy, © of 2 i 1. 2 LP * fs : % ty : Mo i *¢, < Cees ‘ - m A i. . 5 rome, me 7 'e . . . s rary ry Dy 5S : ° : = at : 7 . ee I ae dl = $ i. On ee . ‘ “ = e . : < 5 Dn id a Y e : ~ . e naa * . Qe :. bs ° Pl = a = a YO cave, : : en, ea SOO TR . - . . . = =F) ° ° ART O ° . +e . . . . ~ “ \ . an ¢ ‘ - 6 ar) ae o: 4 + 8 ‘ aie . - . . iN . ‘ g i fae i) ie . . wears . eS . » . . . . MORTAR JOINT. SN 4 . SOA So MORTAD SIN ae oN. . Ad e < Sen as . . ¥ - ; ee e : - 8 ‘ . . ‘ ‘ . . s ~. =) ‘ . . 2 e s s s. ¢ ¢ ‘ ; orale 3 * SECTION No. 600 SECTION No. 603 Full Size. Full Size. Furnished in Lengths of 6, 7, 8, 9, 10 and 12 Feet. eee PAGE TWO ; Atiapp NT A a A Bull-Nose Corner Beads, Styles 604: and 607 ‘AQ ON petacHasie . occu 604 with Peemnpe Sie J Mp Clip Attached abe ff ious Ag ‘ ; 2 oN (Ch ips hak a) S ) ‘ B oie (Patent Pending ‘ MORTA R JO INT ; on Clip) * a s - ‘ A A ‘ ) ‘ ss : cena ; . .. ‘6 ee > on At eS ° View ie as es, ete ah ere . Yer, shat - ‘d : Gg SRG t} e Se wielete a Full Size Section No. 604 BULL-NOSE BEAD. NOSE %” RADIUS Short Flange. Hump Clip Required. QQ F?K perce . i vA as may CLIP 607 with ““Hump”’ Clip Attached ~, » . 4 < So 4 . TSX (Clips Extra) 5 Sipas ‘ : ae. pee \. MORTAR JOINT’ * "5 on Clip) ; 4 ° 4 ’ ; : 4 ’ Full Size Section No. Sa pene et BEAD. NOSE 114%” RADIUS rt Flange. Hump Clip Required. Furnished in Lengths of 6, 7, 8, 9, 10 and 12 Feet. steerer PAGE TH Aiapp (NAA SRR IAAT af TRAD. RIP nan yt ‘\ Mul)” Knapp Sanitary Metal Cove No. 43 and Fittings NS This cove, with the fittings which go with it, is used in new or old buildings, and provide an easily cleaned corner floor angle. Particularly adapted to wood base, where it replaces the quarter-round moulding. The illustration on the right shows the fit- tings furnished for inside and outside corners and the end stop fitting used at doorways or & other terminating points. This cove can also be furnished in Brass. Prices upon request. MMMM KNAPP BROS. MFG. CO., LINOLEUM OR CARPET (Patented) Furnished in Stock Lengths of 10 Feet SUGGESTED SPECIFICATION For No. 43 Cove and Fittings Furnish and erect in connection with all base boards through- out the building, except as otherwise shown or specified, the KNAPP No. 43 METAL ANGLE COVE, together with the fit- tings for inside and outside corners and the end stop fittings at all door openings or other terminating points. This cove shall be made from extra tight coat 24-gauge gal- vanized steel and the exposed face will be primed at the factory with grey galvanic primer. The fittings, above mentioned shall be made of the best grades of cast iron, free of flaws, and shall be dipped in the primer. Provide splice plates for all spliced joints so that cove shall be in a continuous line and plane. Cove will be laid after floor coverings have been stretched and will be drawn up tight in the angle and held securely with No. 6 flush head screws 171% inches on center. Countersunk holes for screws will be punched at factory. The fittings will be provided with attachment lugs and will be attached as per manufacturer's directions. This cove and fittings will Taga toa SCREW be painted or enameled on the job just prior to erection in colors as directed. It is best to do this after cove has been cut and fitted to the spaces and fittings attached and just before laying. DETAIL OF No. 43 COVE AND FITTINGS ee BASE SOM opthe COURT CHICAGO MIE: Knapp Sanitary Metal Cove KNAPP No. 43 COVE, with the fittings which go with it, are used in new or old buildings and provide an easily cleaned corner floor angle. Particularly adapted to wood base where it replaces the unsatis- factory quarter-round moulding. This cove and fittings also fur- nished in Brass. Edge and Cove Binders Made of heavy gauge hot galvanized steel, finished with a special tight coat metallic surface. Furnished in 10 foot lengths. Counter-sunk screw holes, 6 inches in centers. (We do not furnish the screws for the Edge-Binder on account of the E LA great variety of floors. ) Milled edges of binder made tight grip and sanitary contact with lino- leum. WOOD BAS Allows adequate expansion and contraction, thus preventing sears SPS etna buckling of linoleum. ; A I TmiNeLE OM Ve Z al These binders also furnished in Mees ii. oe SO FLOOR —_— brass. KNAPP BROTHERS MANUFACTURING COMPANY 1343 SOUTH 55th COURT CHICAGO, ILLINOIS Knapp Concealed Sanitary Metal Picture Moulds Furnished in stock lengths of 10 feet No. 23 “ECLIPSE”? PICTURE MOULD—26 Gauge Galv. Full Size Section These picture moulds present a sanitary method In some cases it is considered desirable to fill the of supporting pictures or other hanging objects. groove with plaster, cutting out for picture hooks Th fates ; 4 only where wanted. It is possible, however, to keep eveea Ss actecte ASD AEM EB NG SORBED EN the groove open by inserting a cord therein, before plaster ground line. plastering which is easily removed after. Especially adapted to schools, offices, buildings, etc. SPLICE PLATE FOR JOINTS & Full Size Detail No. 20 “ROYAL” PICTURE MOULD—26 Gauge Galv. Patented MANUFACTURING Co. CHICAGO, ILL. KNAPP BROTHER’S SS ee 1343 So. 55th Court PTTTTTITITIITIITTTTTTTi Lilith aleeaeeieieeiaieteieheheieiehebeielebelae —_—_—_————————————————— a Knapp Metal Base Grounds and Screeds with Fittings STYLES Nos. 1, 114, 2, 42, 49 Furnished in stock lengths of 10 feet No. 1 FLUSH GROUNDS—26 Gauge Galv. eee e moray, . No. 1144 FLUSH GROUNDS—24 Gauge Galv. Plaster Thicknesses These grounds form a permanent separa- They prevent contact between non-afhliat- tion between two different plastic materials as ing chemical constituents and therefore pre- in the case of terrazzo, composition or cement vent staining. base and plaster. They are also used as a They eliminate the necessity for temporary protecting border bead in the case of depressed wood grounds and ninety per cent of the or raised plaster panels. ordinary plaster patching. BOR SR OTERO CCRC C RRR R CRRA RESO C ECCT CHC T CET CTC SPER RCT TCC R EERSTE RRR E CAST PES H TESTER CSC H CRESS ECKERT ER CR SATE RRR R RETEST CSCS HSRC ESET TCR SHC R CHS S TSEC HCC R ESS S ESE C SSH C CR ET CE RET ESTES TRS S HSE SE SRST SSSR SESE SE SESE S SSS ESSE SSSR ESSE SEES SEES No. 2 FLUSH GROUNDS—26 Gauge Galv. Made for 14” and 34” Plaster Thicknesses Full Size Section NG, KNAPP BROTHER'S “sanranxy MANUFACTURING CO. METAL VAT OSI-5 AV +4+h-S we (ite CHICAGO, ILL. 1343 So. 55th Court 5 et Semen eRO ROS DERSRSREERORORRCORSRESSR USSR ESTERS ERE R CSD DO RECS CR CRSA CURR C RESO SEER SHER ROR SSSR TREO R SECRETE RESO ROR SR RESO ROCKER SER ER STEERER CDEC SESS SR SE RASS SERS SER SESS STRESS SE RES EERE SHEER SR SESE SESS EER EE SESE EES E ERS s = . . . . . . . . . . . . . . . . s . . = . . . = . . . . . . s . . . . . . . . . s . . . . . . . . . . . . . . . = 2 2 . u = 2 s . . . . . . 2 = . = . . . = = = . . . = . . . = = = = . = . . . = = s . = = . . . = . = °° 2 . . . . . = . . 2 . . . . . . . . . . . 2 © 2 . = r s . = . = . . . . . . = . . . . . s . . . . . . . = . . . . . . . 2 . . 2 . . . = . . . . . . . . . . . . s = . a . . . . = 2 . . . . . . 2 . . . . . . . . . . . s . . . = . . . . . . . . . . . . = . . . . . . . . . . . . . . . . . ° . . . . . . . . . . . . . . . 2 . . . . = . = . . . . . = = . . ICMR MN or SANITARY, \SMETALS PATA TYPE OF CORNER FITTINGS USED WITH FLUSH METAL BASE GROUNDS Made for Exterior Corners, Both 34” and 114” Radii Made for Interior Corners, Both 34” and 114” Radii SUGGESTIVE SPECIFICATION FOR FLUSH BASE GROUNDS The contractor will furnish and erect KNAPP No. 2 (or No. | or No. 1!4) flush base ground, wherever flush cement (or other) base mate- rials is to be used. This ground is to act as permanent screed line for both plasterer and base worker and will be erected perfectly horizontal and parallel with the finished floor. The nose of the ground will be in true plane with the plaster, and where necessary to com- pensate for irregularities in the rough partition wedge behind nailing flanges of ground with KNAPP BROS. MFG. CO. —-.-————-.——-=---— 8 1343 So. 55th Court, wood chips. Grounds will be securely nailed at frequent intervals, and where joints occur, care shall be taken to make them close and inconspicuous. — At all corners both inside and out in rooms or places where grounds are used provide KNAPP CAST IRON BASE GROUND CORNER FITTINGS 34” round (or 114"). These shall be dipped in priming paint at the factory. ae eee eee ., CHICAGO, ILL. Atiapp ee \SMETALY” oan No. 49 CURVED POINT BASE SCREED—26 Gauge Galv. These screeds form a smooth even curved ‘top for any projecting plastic base material such as terrazzo, cement or composition and protect the top of the base against damage by chipping. nnn Full Size Section They also—like the flush type of grounds— form a permanent separation between the two materials, and a working ground line for both. With the fittings hereafter illustrated these can be used in any class of building. : C No. 42 CURVED POINT BASE SCREED—26 Gauge Galv. Gi r ; J Full Size Section aa inn KNAPP BROS. MFG. CO., 2 Pa = so ae =e 1343 So. 55th Court, 4 (EICACO,, IIb l. «MMC ION 1G, SANITARY, METAL, wor MAIR ILLUSTRATION SHOWING TYPE OF CORNER FITTING USED WITH CURVED POINT BASE SCREEDS Made for Exterior Corners, Both 34” and 114” Radii Made for Interior Corners, Both #4” and 112” Radii For Both Styles 49 and 42 Screeds SUGGESTIVE SPECIFICATION FOR CURVED POINT SCREEDS The contractor will furnish and erect Knapp No. 42 (or 49) Curved Point Base Screed, wherever cement (or other) base material is to be used. This screed will form the top of the base, and will also act as a screed line for both plasterer and base worker and will be erected perfectly horizontal and parallel with the finished floor. Where necessary to com- pensate for irregularities in the rough partition wedge behind, nailing flanges of the screed KNAPP BROS. MFG. CO., il OF 5 — WW 4h SS with wood chips. Screeds will be securely nailed at frequent intervals and where joints occur, care shall be had to make them close and inconspicuous. At all corners, both inside and out, in rooms or places where screeds are used provide KNAPP CAST IRON BASE SCREED FIT- TINGS 34” round (or 114”). These shall be dipped in priming paint at the factory. KOON ., CHICAGO, ILL. 1343 So. 55th Court, MICA FOR HOTELS Palmer House Chicago Addition to Morrison Hotel Chicago Knapp Carpet Strip Anchor No. 721 Used in these Hotels Addition to Hotel Sherman Chicago KNAPP BROTHERS MANUFACTURING CO. 1343 South 55th Court CELE AGO 10-1-25-5M This Hotel Circular No. 801 and Illustrations Copyright 1925, by Knapp Bros. Mfg. Co. Ben Ae eae Bek OCS HIE KSS IV AL NS Unc Ae Crk aS gin wae ClO Zep oN UNEN: Knapp Carpet Strip Anchor No. 721 (Patented) HE anchors (No. 721) are placed on 18” centers imbedded solidly in the mortar at the time the partitions are being built. Double anchors are used with partitions and single anchors for walls. {era NO.43 METAL cove / y, ( Ky readers This device eliminates the necessity for imbedding nailing strips in cement floors or drilling and plugging as has been the practice in the past. ‘foi | Acensre caves 5 ° ° ° SRB AMSNCANO.72 This anchor is being used in the Palmer House, Morrison Hotel, Sherman Hotel and several other hotels now being planned in Chicago, Illinois. Knapp Carpet Strip Anchor No. 721 and No. 43 Cove Ls HE design opposite illustrates the adaptation of Knapp’s No. 204 Two-Member Base as a suitable and practical arrangement in connection with a carpet tack strip. The lower member is easily removable for taking up and replacing car- pets. It is in harmony with the fireproof construc- tion plan. The base being metal with a hard smooth surface requires fewer coats of paint and is more sanitary than a wood base. Below—is a cross section showing the detail of construction and in- stallation. Further information upon request. The photographs (see opposite page) were taken from the Palmer House installation. This device is so easily and economically installed that contractors allow a considerable rebate over the old-fashioned way of attaching the carpet strip to the concrete. PLASTER WEDGE : = CARPET aM is Featuring Knapp’s No. 204 Two-Member Base in Connection with Carpet Strip Anchor. SUGGESTED SPECIFICATION The following should be placed in the masonry and carpentry respectively. Masonry This contractor shall build in Knapp Carpet Strip Anchors No. 721, 18” on centers at the floor line of all walls where carpet strips are required. These anchors will be furnished by the contractor for carpentry and will be installed under his supervision. 4 oR6 \ne pp? Carpentry Ts vA “aS SY me ACK This contractor shall install all carpet strips as required AA 2))) ‘StF TRIP x : Poe tae Hee “ay: ZA op t.. eas ot which shall be securely fastened in place with Knapp Carpet Strip 12h Sas eee yee ee Sours Anchors No. 721, made by the Knapp Brothers Manufacturing & Os . Company, Chicago, Illinois, spaced 18” on centers. This con- tractor shall furnish the anchors to the masonry contractors who Section: Noi. 204i Divo. Member aBases Wath will build them into all brick and tile walls and partitions and Carpet Strip Anchor shall also see that he installs the anchors as required. poe Au Le RETE to LED a ai 2 oO KeNGAS ese BART Om se baie. VAIN Ura ASG al Ui Re TaN G G2OyNE EP PAINT ry: boston Illustrating Carpet Strip Installed Ready for Carpet and Base K Neve PB BRO T Hi beRes MAGNA SRSA Coie URI ITINeG CAS Ming Ba IN Ea Knapp Carpet Fastener and Base (Patented 12-16-24.-. 3-10-25. Other Patents Pending) This Cut Illustrates ‘A New Departure’’ f | ‘HIS design features a new departure from the old-fashioned carpet wood strip wherever carpets are used in fireproof construction. The prime features are: A metal channel and lockplates which fasten and hold the carpet in place without injury to expensive carpets, and eliminating the use of the wood strip and carpet tacks. The channel is held in position by the use of a piece of common wire imbedded under the partition wall or in the outer wall as the case may be. The lock-plates are 5 inches long and are easily installed. When it is desired to remove carpet for renovating purposes, etc., all that is necessary is to remove the lower member of the base and pull the carpet upward by the loose end and all the lock-plates on one side of the room are released simultaneously. The two member base may be made of metal or wood, and in either case the top member is installed per- manently. The lower member is easily removed and replaced again with screw clamps, and is so designed that no corner fittings or end-stops (in the metal base) are required. The corners are formed by merely notching out the flange and bending to a right angle, thus forming a seamless angle as shown in illustration. Since the base and carpet fastener are combined in this design the cost is quite economical, besides providing a device far superior to any method yet devised. Complete detailed information and cost data will be furnished upon request. QINOW Widl GavoOgdVId Sd ON ONY dois HOOOSL WIVHD TWIN AavLINYS £O0S oN ddVNy YI ‘602149 0) DAW SOdd ddVNy hg poanpoolounw SNP AIOY4D adj Jo yo $42S012 pub IDG eq} Sqaay N33d0S LS0d VLIW G3 ivzosaad Gavod NiILaTINg g3vo4" NILATION Ved bulge 1M ‘pp ueniains eel: #5 ) ms eo va WaT Soe tity. YORI Nie tu 143, 4 ‘ KNAPP STAPLE LINE OF PLASTERERS’ ACCESSORIES For Sale by All Corner Beads Furnished in 6’-7'-8’-9' 10’ and 12’ Lengths Base Grounds, Picture Mould and Base Screed Furnished in 10’ Lengths Only All Illustrations Except No. 12 Are About Two-Thirds Actual Size. No. 12 is One-Half Size “Hump Corner Bead Clip. Shipping weight, 33 lbs. per M. No. 100—Corner Bead—26 gauge. No. 101-—Corner Bead—24 gauge. Shipping weight, No. 100, 170 lbs. per M ft. Shipping weight, No. 101, 210 lbs. per M ft. No. 604—Bull-Nose Corner Bead—26 gauge. 3%” Radius Nose. Shipping weight, 256 lbs. per M ft. S oe No. 000—Corner Bead—26 gauge. Shipping weight, 185 lbs. per M ft. No. 1 Base Crounds—26 gauge No. 14% Base Grounds—24 gauce Shipping weight, No. - For 144”, 54” or %” Ground. y/ ! ( 16”, 158 lbs. per M ft. No. 15'%—Corner Bead—26 gauge. lo ae rat ae aes Shipping weight, No. 1, 34”, 185 lbs. per M ft. Shipping weight, 208, Ibs. per M ft. Shipping weight, No. 114, 44”, 190 lbs. per M ft. Shipping weight, No. 114, 34”, 217 lbs. per M ft. Shipping weight, No. 1, 96”, 158 lbs. per M ft. lh, Shipping weight, No. 5%”, 190 lbs. per M fet. No. 5—‘‘Imperial’’ Corner Bead—24 gauge. Shipping weight, 271 lbs. per M ft. No. 4'4%—'‘Inside’’ Corner Bead—26 gauge. Shippine weight, 208 lbs. per M ft. No. 23—‘‘Eclipse’’ Concealed Picture Mould—26 gauge. Shipping weight, 230 lbs. per M ft. No. 49—Curved Point Base Screed—-26 gauge. Natural Size No. 12—“‘Ideal” Corner Bead—26 gauge. Shipping weight, 175 lbs. per M ft. Shipping weight, 330 lbs. per M ft. Clips for attaching, 39 lbs. per M. KNAPP BROS. MFG. CO. South 55th Court at 14th Street CHICAGO, ILL. J <7 y Wm. M. Butterfield, Architect Photograph of the Interior of a Class Room in the Franklin St. School at Manchester, New Hampshire. app SANITARY’ 1343 South 55th Court, Chicago, Ill. KNAPP BROS. MFG. CO. MARK TRADE i sires