—\ SERVICE To LAMPS METAL REFLECTORS AND FITTINGS INDUSTRIAL ILLUMINATION : - caTaLoc NUMBER 820-A — Superseding Catalog No. 320 HOW TO PLANA LIGHTING SYSTEM sdS PASTE THIS SHEET INSIDE CATALOG No. 320-A This is a new catalog listing Ivanhoe Metal Reflectors and Fittings for Industrial [}]umination. The Ivanhoe line has been revised, some numbers being discontinued, while new developments and designs have been added. Holders Nos. 608 and 609 are new products. They fit B-heel reflectors which are provided with two lugs, as illustrated herein. Until January 1, 1924, all B-heel reflectors for use with the No. 608 and No. 609 holders must be specified as BEDD-100 with lugs, BEB-200 with lugs, BEL-75 with lugs, etc. They must be ordered with the holders to avoid confusion. Unless B-heel reflectors with lugs are specified on an order, the reflector without lugs will be supplied until present stocks are exhausted, after which time all B-heel reflectors will become standard with lugs. The lugs will not interfere with the use of the other Ivanhoe 214” and 314” holders listed in this catalog. : IVANHOE-REGENT WORKS of General Electric Co. ib pe: TO LAMP s a LV AWN a © §& METAL REFLECTORS AND FITTINGS for INDUSTRIAL ILLUMINATION CATALOG NUMBER 320-A Superseding Catalog No. 320 HOW TO PLAN A LIGHTING SYSTEM IVANHOE-REGENT WORKS of General Electric Company CLEVELAND, OHIO Manufacturers of Ivanhoe Metal Reflectors and Illuminating Glassware August 29, 1925 Digitized by the Internet Archive in 2022 with funding from Columbia University Libraries https://archive.org/details/ivanhoemetalrefl00gene_0O D i 5 sate jo} Py Ne et ae eh a ie Et UE S| fhe a OS gE fo} iS) OS al ie] = > SERVICE TO LAMPS Mazda lamps are the most convenient and eco- But whereas an a nomical means of providing light. installation of bare Mazda lamps will produce good volume of light, the light radiates from the lamps in all directions, and a great deal of it is Besides, such light is glaring, and the shadows are deep and sharp. In other words, light from bare Mazda lamps is wasted. raw material. To utilize this raw material most effectively is the idea incorporated in the Ivanhoe slogan of Service to Lamps. Light, to be useful, must be transformed into illumination. The light must be directed where it is needed, and its quality improved by diffusion so that glare is reduced and shadows softened. These results are brought about by the use of scientifically designed reflectors, installed in accordance with approved engineering practice. The need for good artificial illumination is evi- dent when it is considered that near the middle of the day a work-bench near a window may have an intensity of ten or fifteen foot candles of daylight. The light will be well diffused, casting shadows that are soft and luminous, so that the workman can perform his duties with ease and comfort. It is obvious that when darkness comes on the work must suffer if it is performed under light of one or two foot-candles, and improperly reflected so that glare and sharp shadows are present. It has been found by careful tests that Productive Intensities have increased production from 6 to 33% over that in poorly lighted rooms or work shops. Productive Intensities approximate very closely, both in quality and quantity, average daylight illumination received upon the work. The tests were all conducted in metal working shops where the class of work ranged from rough machining and assembling to accurate tool work. Records of production with an inadequate lighting system were kept and then with a properly designed system where the latest types of Mazda lamps and Industrial Reflectors were used. Plants are operating today where an improve- ment in the lighting would mean a like increase in production. In order that illumination intensities may be measured conveniently, the Foot-Candle Meter was perfected. This instrument is shown below. As the name implies, it is an instrument for measuring illumination intensities in foot-candles, the unit The foot-candle is the unit of measurement of illumination intensity, as the degree Fahrenheit is the unit of measurement of temperature, or pounds per square inch the unit of of measurement. measurement of pressure. There is no longer any reason for doubt or un- certainty regarding a lighting system. Ivanhoe representatives are at your service with a Foot- Candle Meter and practical engineering knowledge of illuminating requirements. There is an Ivanhoe reflector for every service, to make good the Ivanhoe slogan of Service to Lamps. But the final Ivanhoe ideal is Service to Industry—a service which improves working con- ditions so as to increase production, reduce spoilage, and raise the standard of quality of the goods manufactured. The Foot-Candle Meter 2 HOW TO PLAN A LIGHTING SYSTEM CLASSES OF LIGHTING It is the object of this section to give general engineering data which will assist in providing better illumination most economically, without entering into a discussion of fundamental principles. The first consideration in making a light installa- tion should be to decide what kind of lighting is best adapted to the particular industry involved. All industrial lighting may be divided into three classes: General Overhead lighting, Group Light- ing, and Local Lighting. General Overhead Lighting With General Overhead Lighting, the room is lighted as a whole without reference to the work done at any particular point. With this system the light should be sufficient for the character of work per- formed at every point in the room. The distrib_ uted unit system is employed, in which lights are arranged in imaginary squares, or nearly square. rectangles Where coarse work is performed the squares may be large; where fine work is performed they should be small. A size of square and mounting-height which call for the use of the standard Bowl or Dome reflector (see page 8) is usually the best. For coarse work, however, and for such places as warehouses, distributing type reflectors are desir- able, with the spacing between outlets from two to two and one-half times the mounting-height. Group Lighting Group Lighting, or, as it is often called, Localized General Lighting, consists in lighting a particular group of machines, or a particular area by Overhead Lighting. It is sometimes difficult to distinguish between General Overhead Lighting and Group Lighting, but in the former the room itself is lighted without reference to the location of the work, while in the latter the lights are always placed with particular reference to the location of the work, Local Lighting Local Lighting is the lighting of any individual machine or operation, usually with a single lamp and reflector. It is ordinarily employed to supple- ment General Overhead Lighting of low inten- sity. Local Lighting is used on work-benches, lathes, sewing-machines, punch-presses, drawing-presses, or for any kind of work where a light may be needed from a nearly horizontal direction, or where a high intensity of illumination is area. required over a small Figure 1. sample of General Lighting where maximum light diffusion is essential. Installation of Glassteel Diffusers in a Machine Shop. “sh A good ON STEEL \jl\||l¥ REFLECTORS WHERE AND HOW TO USE DIFFERENT TYPES OF REFLECTORS In order to meet all the requirements of industrial plants, the Ivanhoe line offers several types of stand- ard reflectors for each class of lighting. These may be grouped as they apply to the three general classifications already outlined, namely: General Overhead, Group and Local. Illumination requirements for General Overhead and Group Lighting being such that the same re- flectors are usually applicable to both classes of service, the following general classification may be made. The RLM Standard Dome These reflectors are gen- erally applicable to any industries which may be classified as Rough Manu- facturing, Medium Manu- facturing, or Fine Manu- facturing. With them a great deal of light is di- rected at the higher angles, and they are, therefore, especially suitable for operations where the work is performed on vertical surfaces. The depth of the RL M standard dome is such that ample protection from the glare of the lamp filament is provided when the reflector is used on the average mounting-height. However, best practice requires that bowl-enameled lamps be used in order to conceal the lamp filament. When these reflectors are used it will usually be in accordance with the rules for General Overhead Lighting. The distance apart should be approxi- Figure 2. RL M Standard Dome Reflectors equipped with Bowl-enameled Mazda C Lamps. Note the absence of glare and sharp shadows, A productive intensity installation. areas R LM Standard Dome Reflectors grossa ati Glasstee] Diffuser ean (Standard Bowl Type Reflectors ne | Glass-Top Reflectors Grou . JTOEP | Vapor-proof Reflectors. Lighting | For — {Small Angle Type Reflectors ) Local {Small Bowl Type Reflectors Lighting [Special Service Reflectors mately one and two-thirds times the mounting- height above the work. This ratio can be increased to two or two and one-half where uniform illumina- tion is not required, as in warehouses and spaces where rough work is performed. The Glassteel Diffuser The Glassteel Dif- fuser, designed for high wattage Mazda C lamps, is a combina- , tion consisting of an extra large dome reflec- tor and an enclosing globe of light-density diffusing glass that en- tirely surrounds the lamp. The large reflector and diffusing globe greatly reduce brightness and afford excellent diffusion. The top of the reflector is per- forated, through which lght passes upward so that the entire work- room may be lighted. The enclosing globe permits the use of the high watt- age lamps necessary for high intensities with a minimum of glare. All these features combine to closely simulate the intensities, diffusion, soft shadows, general lighting and ideal qualities so desirable in daylight illumination. The reflector is white porcelain enameled inside and outside and with the white opal globe is inconspicuous even though it is large in size. The finish of the reflector and smooth sur- face of the glass make cleaning easy. It is designed for use in those in- dustries where the highest type of illumination is desired; where high intensities are essential; where direct or reflected glare must be eliminated; where diffusion of light is required for distribution and to prevent dense shadows, and where work on vertical surfaces predominates. AN SERVICE! To LAMPS One very distinct advantage for this unit is the fact that Mazda C Daylight lamps may be used with but very little change in color of the light as produced by these lamps. For utmost efficiency these lamps should be used clear and the Glassteel Dif- fuser at once provides an_ efficient accessory eliminating the brightness of the clear bulb lamps. It should be spaced not more than 114 times the mounting-height above the work for uniform illumination. The Standard Bowl Reflector Rules for the in- stallation of the bowl type reflector are very closely re- lated to those given for the Dome Type : in a preceding par- agraph, but with this type the lamp filament is shielded at a lower angle, and they are sometimes preferable 3048 T Figure 3. to Dome reflectors for General Overhead Lighting. For the same reason they are especially suitable for installations where reflectors must be mounted low, in order that operators will not be annoyed by excessive glare. The distribution of light is rather strongly downward, and for this reason they are preferable for installations where reflectors must be mounted at a considerable height to clear cranes, or to conform to the construc- tion of the building. Bowl reflectors are also suitable, in the smaller sizes, for Local Lighting where a high intensity is desired over a small area. Bowl reflectors should be spaced a distance apart approximately one and two-thirds times the mount- ing-height above the work for either General Over- head or Group Lighting, and when used for Local Lighting, must, of course, be located with reference to the work. Glass-Top Reflectors This type is a develop- ment for use in factories where the general appear- ance of the workroom is considered essential to good workmanship and content- ment of employees. The popular Dome Type is available in this new design. This standard form is used, with a small portion of the top cut away. The opening is covered with a light density, diffusing glass cover permitting a small amount of light (from 8 to 10%) to pass upward, in order that the ceiling and top walls may be illuminated to a desirable brightness. This feature relieves the contrast in brightness between the area below and above the lighting units, and can be noted by comparing Figs. 2 and 3. The An Installation of Ivanhoe Glass-Top Dome Type Reflectors. Note the Illumination of the Equipment above the Level of the Reflectors. light above the unit also serves to illuminate the pulleys, line shafting and other machinery above the level of the reflectors so that repairs can be made conveniently. The efficiency of these reflectors varies but a small percentage in the amount of light directed to the working area as compared with the standard RLM Dome Type reflectors, so that their application is the same as for those reflectors described in preceding paragraphs, Angle Type Angle type reflectors may be classified as special service reflectors. They are particu- larly desirable in the large sizes in such industries as erecting shops, machine shops where traveling cranes are used overhead, and — similar classes of work. In such installations the overhead lighting often comes from re- flectors mounted rather high, and it is usually necessary to build up the illumination on the work- ing plan from the side. In such cases Angle Reflectors are mounted along the side walls below the crane rails, at a suitable mounting-height, the distribution being such that the light is directed away from the wall, and toward the center of the room. Both the horizontal and vertical illumina- tion is built up, and light is received upon the work from each side, as well as directly overhead. This is an advantage in softening shadows. In the smaller sizes this type is very good for Local Lighting, where {Np STEEL AN REFLECTORS Figure 4. mounted 40 feet above the floor. Reflectors are suitable for this Class of Service. outlets must be located close to the work and it is desirable to screen the lamps from the operator. Angle reflectors are required for sign and_bill- board lighting, and are being used extensively for this class of service lighting. Special installation data is available for this class of service and may be had on request. Vapor-Proof Reflectors Vapor-proof fittings afford a safe means of providing illu- mination for such industries as powder plants, flour mills, oil . refineries and similar indus- ® tries where it is essential that electrical connections and lamps. be protected from acid fumes or inflammable dust or vapors. In order that the light from these fittings may be efficiently utilized there are Ivanhoe reflectors made to fit the equipment available. The RLM Dome form has been adapted for use on these fittings, therefore the performance charac- teristics are very similar. ‘The angle of cut-off and distribution are about the same with slightly lower efficiency due to the large fitter and use of the globe and guard. They are porcelain-enamel finished inside and outside to stand up under the severe service conditions expected. They should be spaced one and two- thirds times their mounting-height above the work. Mazda C Enclosing Units With the advent of the larger sizes of Mazda C lamps, there came a demand for this type of completely enclosing 7 units for display lighting, for store aP fronts, and similar outdoor lighting. A Good Example of Illumination of a Large Interior. Ivanhoe R L M Standard Dome or Bowl Type These units are of heavy construction, and will stand up satisfactorily under the varying conditions of the weather. The globes are excellent diffusers and their absorption is low. This type of unit is sometimes used indoors, for General Overhead Light- ing, and in such cases it is preferable to use the unit with the reflector in order to take advantage of the increase in downward light. Wide Type Reflectors The Flat Concentric Reflector should be used only for outdoor lighting, as in yards, and on platforms, where a wide distri- bution of light is required, and it is not important that the lamps be screened. Reflectors are furnished in the R style only, with a solid top of rigid construction, containing a porce- lain socket. The reflectors are weather- proof and easy to wire. Reflectors Shallow Dome Reflectors The Shallow Dome Type also produces a wide distribution of light, but is deeper, affording “much better protection from 7 ee the brignt.tiaiienn. This type is suitable for indoor installations on wide spacing, in storage spaces, and similar locations where close vision is not required. This type is available in both paint-enamel and_ porcelain- enamel finishes. Reflectors for Mill Type Lamps Where the lamp must be located near the work and is subject to excessive vibration or abuse in hand- ling, the Mazda Mill Type is the most serviceable. There are several types of Ivanhoe reflectors available for these lamps, including the Bowl, Angle and Dome types. These reflectors are small in diameter and deep in order to conceal and protect the lamp. A special small reflector is made for use on power machines where it is located close to but must not conceal the work. Special Service Reflectors There are some requirements which can only be met with specially designed reflectors. Tennis Courts, Sewing Ma- chines, Mail Cases and other localized operations all require special equipment. Ivanhoe reflectors for Special Service have been designed to produce certain predetermined results best serving these individual requirements. SERVIC BaIN TO LAMPS INTENSITY OF LIGHT REQUIRED FOR VARIOUS KINDS OF WORK For the effective and economical production of work, it is important that a sufficient intensity of light be provided. The following table shows the intensities in foot-candles required for various classes of manufacturing. These intensities apply under all average conditions and represent present standard light- ing practice, having been revised in accordance with the present practice of specifying Productive Intensities. A range of choice is provided by recommending limits of intensity, as ““3 to 6,” “5 to 10,” “8 to 16,” “10 and upward.” Rough Manufacturing; 3 Medium Manufacturing; to 6 Foot-Candles: Rough ae ASS Sia oe ue Assembling, Rough Forging, Madina is rae ee Rough Woodworking, Ice work, Automatic Machine Making, Potteries, Lumber Work, Meat Packing, Paper Making, Laundries, Bakeries, etc: Mills, Tanneries, ete. WATTS DIFFERENT The following values have been computed on the basis of the average lumens per watt for the most common sizes of Mazda C lamps, and the approximate utilization factor for the conditions assumed. Ample allowance has been made _ to cover depreciation in the light output due to the collection of dust, aging of lamps, ete. These tables are presented for the convenience of those who wish to provide the intensities recommended for various classes of manufacturing. The factors, such as .19, .23, .27, etc., represent For best results it is preferable to supply wattage for the higher intensities. Extra Fine Manufactur- ing; 10 Foot-Candles and Upward: Watch and Jewelry Manufacturing, Engraving, Type-Setting, Shoe Manu- facturing, Enameling, Dark- Colored Textiles, ete. Fine Manufacturing; 8 to 16 Foot-Candles: Fine Assembling, Leather Work- ing, Fine Woodworking, Fine Lathe Work, Tobacco Manu- facturing, Fine Sheet Metal Working, Light-Colored Tex- tiles, ete. PER SQUARE FOOT REQUIRED FOR INTENSITIES the wattage per square foot required to produce certain foot-candle intensities with various reflector and lamp equipment for large and small rooms. Locate the factor for the type of reflector and lamp to be used, opposite the foot-candle intensity as determined from the above table. Multiply this factor by the total floor area in square feet and the product will be the total wattage required. If this total wattage is divided by the number of outlets, the proper lamp size will be determined. rena WATTS PER SQUARE FOOT WITH VARIOUS TYPES OF REFLECTORS Boos ances poe One Row oF OvutLets More THan One Row or OvutLets R LM Dome Bowl Glassteel RLM Dome Bowl Glassteel Diffuser Diffuser ] .19 123 ao 51S .19 20 Q .36 44 43 . 29 Sah) .85 3 Bye .61 . 60 42 50 49 4 | 64 79 78 52 65 65 5 )|Mazda C Clear || 81 95 93 65 .78 75 6 || | | 97 11 BS 1.10 78 94 .90 8 | 180 1.50 1.45 97 1.20 1.15 10 | 1.45 1.80 ao 1220 1.45 1.40 12 | 1.80 2.15 2.10 1.45 1.70 1.70 16 2.30 a FAD) 2.65 | 1.85 id AD) 2.10 ] 29 26 19 523 Q 43 gout BOO 42 3 60 172 .49 99 + 78 .93 65 78 5 J Mazda C .93 iia 75 90 6 Bowl-Enameled 1.10 1.32 90 1.08 s | 1.45 1.74 1.15 1.38 10 1755 2.10 1.40 1.68 12 2.10 Dep 1.70 2.04 16 2.65 3.17 2.10 2.40 LOCATION OF OUTLETS It is important in any class of lighting that outlets be properly located. This applies to all three classes of lighting previously described; namely, General Overhead Lighting, Group Lighting and ~ Local Lighting. It is obvious that for Local or Group Lighting outlets should be located with reference to the work. For General Overhead Lighting, however, it is desirable to locate outlets STEEL (hil REFLECTORS symmetrically, employing the distributed unit system. For this system outlets are located at the centers of imaginary squares or rectangles nearly square. Ceiling heights and the sizes of bays are the important factors controlling the location of outlets for this system. The distribution characteristics of a_ reflector must also be considered. The maximum spacing or distance between outlets for a reflector when suspended a certain height above the work is de- termined from its distribution. Therefore, a definite factor expressing this relation can be determined. When this relation is_ followed, uniform illumination will result. The following table has been compiled, showing the maximum distances between outlets for different types of reflectors when reflectors are suspended at stated distances above the floor, considering the work on a plane 2 feet 6 inches above the floor. The spacing can be determined when the mounting- height is the controlling factor, or vice versa. SPACING AND MOUNTING-HEIGHT TABLE Maximum Spacine Distance BETWEEN OUTLETS Maximum SpacinG Distance BETWEEN OvTLETS : : (For Plane 30 Inches above the Floor) : : (For Plane 30 Inches above the Floor) Mounting-Height Mounting-Height Above Floor RL M Standard Dome, Glassteel Above Floor R L M Standard Dome, Glassteel Feet or Bowl Type Diffuser Feet or Bowl Type Diffuser Feet Feet Feet Feet 9 1] 10 134 18 161% 919 12 1014 14 19 17 10 121% 11 1414 20 18 101% 13 12 15 21 19 11 14 iS 16 22% 20 11% 15 13144 17 24 22 12 16 14 18 26 23 124% 17 15 19 27% 25 13 17% 16 CONSTRUCTION OF IVANHOE REFLECTORS Ivanhoe reflectors are made with three distinct types of entension to conform to different systems of wiring and installing. These are the B-heel extension, the extension equipped with the D holder, and the R extension. The B-Heel Type Holders Nos. 608 and 609. one-piece unit. seams. is a part of the reflector. To Wire R Type Reflectors, loosen the Lock Nut at the Top of the Extension, and raise the Reflec- tor on the Pipe. the top of the socket. the reflector. All R Type Reflectors are weather-proof. The B Heel is the name applied to the fitter at the top of one type of extension. a convenient and practical method of attaching the reflector to a separable holder. advantage is, that when the reflector is used with an Ivanhoe socket holder, or any standard Form O Holder, it is possible to complete all wiring before hanging the reflector. lugs pressed into the B-heel extensions adapt these reflectors to the Bayonet Spring Coupling The D Type A second type of extension is furnished with a brass clip ring reinforced by the D clamp strap, or holder, for attaching directly to brass shell sockets. The R Type The R Extension makes “Solid Top” units of the reflectors to which it is fitted. electrically welded to the reflector, making a solid, The solid metal unit is then cov- ered with porcelain eramel without joints or A socket fitted with a cap of hexagonal design to fit a half-inch onduit, and a special lock nut, The top of the reflector is stamped to fit the form of the hexagonal cap on The nut can be screwed tight on the socket without turning The construction permits sliding the reflector along the conduit, making the socket easily accessible, as shown in the illustration. In addition, the hexagonal top and lock nut construction is a very desirable Ivanhoe feature of special importance. It provides Its The two The extension is Z Ma Ys aa ae Pea alge ee To Hang a D Reflector ona socket, looseu the Screw, snap the Socket into the Ring, and tighten the Screw. By means of this locking device the reflector is held constantly in the desired position, an advantage in all classes of service, especially such as billboard lighting where reflectors must be held in definite position for best results. 8 SERVIC (lll TO LAMPS FINISHES ON IVANHOE REFLECTORS Ivanhoe reflectors are stamped or drawn of open-hearth steel and supplied in three standard finishes: porcelain enamel, aluminum, and paint enamel. It has been found that in most classes of manufacturing, the porcelain-enameled reflector is most serv- iceable, as this finish will stand up under dirt, moisture, and acid fumes with but little deterioration of the reflecting surface. These reflectors are also easy to clean, which is an important factor to consider. — Reflec- tors finished with paint enamel can be used successfully in light manufacturing operations, and in those industries where conditions are generally clean. Porcelain Enamel: This finish is applied to the inside of the reflectors in three coats. The first is a binding coat, and it is covered by two coats of white porcelain enamel. The outside of the reflectors is treated with the same binding coat, and covered with one application of dark green porcelain enamel. Paint Enamel: The inside of the reflector is covered with a binding coat, and two coats of glossy white paint enamel. A glossy green paint enamel is applied to the outer surface, and baked on to insure a tough and durable finish. The color is permanent. EXPLANATION OF CATALOG NUMBERS Where standard reflectors are listed, the catalog numbers are made up of letters and numerals as follows: 1. Type of Extension: B, D or R. (for deep distributing distribution), L (for 2. Kind of Finish: E (for porcelain enamel), angle distribution), W (for wide distribu- P (for paint enamel). tion). 3. Distribution of Light: B (for bowl! distribu- 4. The size of Mazda lamp recommended for tion), D (for distributing distribution), D D best results is indicated by the numerals. EXAMPLE: The RLM dome reflector with B-heel type fitter and for a 75-watt lamp would be BEDD- 75—the first letter denoting the fitter; the second—the finish; the third—the distribution; and the numerals the lamp size. Reflectors for special service are identified by numbers such as 804, 882, 888, etc. FEATURES OF IVANHOE PACKING The packing of Ivanhoe Metal Reflectors is at once compact, light and secure. It eliminates the use of materials undesirable from the stand- points of cleanliness and economy of space and at the same time assures a degree of safety in shipping not attained by the use of more bulky systems of packing. Designed by experts in modern methods of packing, the packages used for shipping Ivanhoe Reflectors occupy little more volume than the Reflectors themselves and add but little to the actual weight of the goods, while pro- viding ample protection and affording clear identification of package contents, all advantages in shipping. The illus- trations show the design and label of a typical standard package of Ivanhoe Metal Reflectors. [VANHOE METAL REFLECTORS IVANHOE METAL REFLECTORS ic AND FITTINGS © MPS FITTINGS fO LAMPS siRvEI *SERVICE TOLA O HOE-REGENT WAS ap Erec OO noo 6G {VANH of GENER CLEVEL “AT NO. BEBE mw cat? Quantity oy A Strong, Compact, Clean In an Ivanhoe Shipping Carton Metal Reflectors Shipping ; Package, also are Protected from Outside Injury or from Suitable for Stock Room Movement of the Goods within the Package. Storing. ANTI STEEL {j\j|l! REFLECTORS SCHEDULE R RLM STANDARD DOME REFLECTORS For Medium Base Sockets of For 50, 75, 100, 150 and 200-watt Mazda C Lamps These reflectors are recommended as the highest standard of the distributing type. They are porcelain-enameled, green outside and white ins’'de. For uniform illumination they should be spaced not to exceed one and two-thirds times their height above the work. In ordering, the Ivanhoe number should be given. Dome reflectors for 40, 50 and 60-watt Mazda B lamps are listed on page 21. Reflectors and Separable Holders Characteristic Distribution Standard B-Heel Type No. 902 No. 822 No. 908 No. 608 For use with any of the Ivanhoe Ae Ss ; Bs . i Standard Quantity, 50 Standard Quantity, 10 Standard Quantity, 10 Standard antity Holders shown here, or with any ; F a aos: ‘ grat Quantity, 19 standard Form O Holder. The ‘omplete information on holders is given on page 26. various combinations of reflec- | | tor and holder are illustrated at giv aphoe ats Dimensions in Inches Packing the bottom of the page. Use this number Standard ay in ordering Designation Diameter Depth No. in Standard) Approx. Lbs. Package Ship’g Weight *BEDD-50 : | 5 (For 50-watt Dome-50 124% 5 10 30 Mazda C Lamps) *BEDD-75 ry y y PPokvb- watt Dome-75 12% 5% 10 30 Mazda C Lamps) *BEDD-100 : (For 100%ind Dome-100 14% 6% 10 35 150-watt Mazda C Lamps) *BEDD-200 Dome-200 16°34 734 10 40 (For 200-watt Mazda C Lamps) | R Type with Solid Top Containing Porcelain Socket Weatherproof Reflectors—Solid Extension with Sockets tREDD-50 Dome-50 * | By | (For 50-watt (For Solid-top 12 A 10 30 Mazda C Lamps) | Reflectors) | fREDD-75 Dome-75 12% sly | | (For 75-watt (For Solid-top | ~a/8 OYA 10 | 80 Mazda C Lamps)} Reflectors) TREDD-100 | (For 100 and Dome-100 141 8 93 8 | fs 20 150-watt (For Solid-top | Mazda C Lamps) Reflectors) | TREDD-200 Dome-200 1636 1044 | 59 30 (For 200-watt (For Solid-top | Mazda C Lamps) Reflectors) *The D types of these reflectors, for attaching’ directly to brass shell sockets as illustrated on page 8, are the DEDD- 2 Eb DEDD-200. They can be obtained at a cost of 15c additional to the List Price of the porrespoudae E fy paraticetonh pees Sisk SAEED yy SEER: sockets will be furnished for 40 cents list additional. Extra Keys, 7 cents each list. Pull chain sockets will be furnished for 80 cents ist additional. z B-Heel Reflector—Holder No. 902 B-Heel Reflector—Holder No. 822 B-Heel Reflector—Holder No. 908 B-Heel Reflector—Holder No. 608 10 SERVICE (hh TO LAMPS SCHEDULE R RLM STANDARD DOME REFLECTORS For Mogul Base Sockets For 300, 500, 750 and 1000-watt Mazda C Lamps These reflectors are recommended as the highest standard of the distributing type. They are porcelain-enameled, green outside and white inside. For uniform illumination they should be spaced not to exceed one and two-thirds times their height above the work. In ordering, the Ivanhoe number should be given. Reflectors and Separable Holders Characteristic Distribution Standard B-Heel Type No. 622 No. 909 No. 609 For use with any of the Ivanhoe Standard Quantity, 10 Standard Quantity, 10 Standard Quantity, 10 Holders shown here. The various Complete information on holders is given on page 27. combinations of reflector and holder are illustrated at the bottom Teaenee RLM Dimensions in Inches Packing of the page. No. a aed Di J Det No. in Stand- | Approx. Lbs. esignation iametet | epth ard Package | Ship’g Weight | ? | BEDD-500 Dome-500 184 734 5 30 (For 300 and 500-watt Mazda C Lamps) BEDD-1000 Dome-1000 Q1 1034 (For 750 and 1000-watt Mazda C Lamps) ‘ 60 Or Weatherproof Reflectors—Solid Extension with Sockets R Type with Solid Top Containing Porcelain Socket REDD-500 Dome-500 18k 124% 5 45 (For 300 (For Solid-Top and 500-watt Reflectors) Mazda C Lamps) REDD-1000 Dome-1000 21 15% 2 OF (For 750 (For Solid-Top and 1000-watt » Reflectors) Mazda C Lamps) B-Heel Reflector—Holder No. 622 B-Heel Reflector—Holder No. 909 B-Heel Reflector—Holder No, 609 11 STEEL (iil REFLECTORS Characteristic Distribution Standard B-Heel Type For use with any of the Ivanhoe Holders shown here, or with any Stan- dard Form O Holder. The various combina- tions of reflector and holder are illustrated at the bottom of the page. R Type with Solid Top Containing Porcelain Socket B-Heel Reflector—Holder No. 902 SCHEDULE R STANDARD BOWL REFLECTORS For Medium Base Sockets For 40, 50, 60 75, 100, 150 and 200-watt Mazda Lamps These bowl reflectors replace the two Ivanhoe lines formerly listed as “Extensive ‘namel” and ‘Intensive Enamel.” They are porcelain-enameled, green outside and white inside, and their bowl shape furnishes an effective shield against the glare of the lamp. They should be spaced not to exceed one and two-thirds times their height above the working-plane. Reflectors and Separable Holders No. 902 No. 822 No. 908 No. 608 Standard Quantity, 50 Standard Quantity, 10 Standard Quantity, 10 Standard Quantity, 10 Complete information on holders is given on page 26. Dimensions in Inches Packing Ivanhoe Recommended No. Mazda Lamp Diameter Depth No. in Stand- | Approx. Lbs, Watts ard Package Ship’g Weight | PER & 40, 50, 60 Mazda B_ |\ J *BEB-50 J40, 50, ‘ 74 5 5 BEB-5( (50 Mazda ¢ i ce 7s 10 15 *BEB-75 75 84 6 10 15 *BEB-100 | 100. 150 94 714 10 20 *BEB-200 200 1014 834 | . 10 Q5 Weatherproof Reflectors—Solid Extension with Sockets Ae { 50, 60 Mazda B ‘f 4 7 A TREB-75 | 50, 75 Mazda C f 8” 8°4 | 10 30 +REB-100 100, 150 94 10a a4 i 20 TREB-200 200 10144 1% | 5 25 *The D types of these reflectors, for attaching directly to brass shell sockets as illustrated on page 10 DEB-50, DEB-75, DEB-100 and DEB-200. They can be obtained at a cost of 15¢ additional a rhe ise Price of the corresponding B type reflectors. tLocking sockets will be furnished for 40 cents list additional. Extra keys, 7 cents each list. : 3 J . c ane Pull chain sockets will be furnished for 80 cents list additional. sien B-Heel Reflector—Holder No. 822 B-Heel Reflector—Holder No. 908 B-Heel Reflector—Holder No. 608 12 SERVICE NA TO LAMPS These bowl reflectors replace the two Ivanhoe lines formerly listed as sive Enamel” and “Intensive Enamel.” glare of the lamp. SCHEDULE R STANDARD BOWL REFLECTORS For Mogul Base Sockets They are porcelain-enameled, green out- side and white inside, and their bowl shape furnishes an effective shield against the They should be spaced not to exceed one and two-thirds times their height above the working-plane. For 300, 500, 750 and 1000-watt Mazda C Lamps *Exten- No. 622. Standard Quantity, 10 Reflectors and Separable Holders No. 909 Standard Quantity, 10 Complete information on holders is given on page 27, No. 609 Standard Quantity, 10 Ivanhoe Recommended Mazda Lamp Dimensions in Inches Packing Bio Det Diameter Depth BEB-500 300, 500 12% sls BEB-1000 750, 1000 1534 11% No. ard in Stand- Package Approx. Lbs. Ship’g Weight 10 5 30 30 Weatherproof Reflectors—Solid Extension with Sockets REB-500 300, 500 B-Heel Reflector—Holder No. 622 12144 or 30 B-Heel Reflector—Holder No. 909 13 Characteristic Distribution Standard B-Heel Type For use with any of the Ivanhoe Holders shown here. The various combinations of reflector ;and holder are illustrated at the bottom of the page. R Type with Solid Top Containing Porcelain Socket. B-Heel Reflector—Holder No. 609 STEEL tN REFLECTORS SCHEDULE R PORCELAIN-ENAMELED ANGLE TYPE For Medium Base Sockets For 25, 40, 50, 60, 75, 100, 150 and 200-watt Mazda Lamps Angle Type reflectors are often required where overhead lighting is inadequate and illumination must be built up from outlets placed at the sides of the working area. The reflector is tipped at an angle of 30° from the vertical axis. The weatherproof, easy wiring R Type is adapted for billboard lighting. Reflectors and Separable Holders Characteristic Distribution Standard B-Heel Type For use with any of the Ivanhoe Holders shown here, or with any a, standard Form O Holder. The various combinations of reflec- No. 902 No. 899 Ne eoOE Set TY tor and holder are illustrated at Standard Quantity,50 Standard Quantity, 10 Standard Quantity, 10 Standard Quantity, 10 the bottom of the page. Complete information on holders is given on page 26. Recommended Dimensions in Inches Packing ah Mazda Lamp No. Watts : No. in Stand- | Approx. Lbs. Diameter Depth ard Package | Ship’g Weight “a f15, 25,40,50, MazdaB]\ Ly - BEL-50 Q5, 50 Mill Type f ( v/72 10 165 : 60 Mazda B N * 9 \ ‘ WA 34 BEL fo i 50, 75 Mazda ( J 844 6°4 10 20 *BEL-100 100, 150, 200 10% 914 10 25 R Type with Solid Top Containing Porcelain Socket | | TREL-75 50, 60, 75 814 914 10 | 20 tREL-100 100, 156, 200 1014 12 10 | *The D types of these reflectors, for attaching directly to brass shell sockets as illustrated on ypes of reflec . for atte ng } ass s soc} a F page 8, are the DEL-50, DEL-75 and DEL-100. They can be obtained at a cost of 15c additional to the List Price of the corresponding B type reflectors. tLocking sockets will be furnished for 40 cents list additional. Extra Keys, 7 ¢ i ng y ; nis ts list ¢ all’. Uxtre Ys, ‘ents each List. Pull chain sockets will be furnished for 80 cents list additional. . ; 4 **This reflector cannot be used with No. 608 holder. ee B-Heel Reflector—Holder No. 902 B-Heel Reflector—Holder No. 822 B-Heel Reflector—Holder No. 908 B-Heel Reflector—Holder No. 608 14 SERVIC shhh TO LAMPS PORCELAIN-ENAMELED ANGLE TYPE SCHEDULE R For Mogul Base Sockets For 300, 500, 750 and 1000-watt Mazda C Lamps Angle Type reflectors are often required where overhead lighting is inadequate and illumination must be built up from outlets placed at the sides of the working The reflector is tipped at an angle of 30° from the vertical axis. area. The weatherproof, easy-wiring R Type is especially adapted for billboard lighting. No. 622 Standard Quantity, 10 Reflectors and Separable Holders No. 909 Standard Quantity, 10 No. Standard Quantity, 10 Complete information on holders is given on page 27. 609 Dimensions in Inches Packing Ivanhoe peer mendes No, Mazda Lamp ee , Tr No. in Stand-] Approx. Lbs. Watts Diameter Depth ard’ Paebave: | Shines WeIsht BEL-500 300, 500 121% 1134 D 20 | BEL-1000 750, 1000 1534 1534 5 30 Weatherproof Reflectors—Solid Extension with Sockets REL-500 300, 500 12% 16 30 B-Heel Refiector—Holder No. 622 B-Heel Reflector—Holder No. 909 Characteristic Distribution Standard B-Heel Type For Use with any of the Ivanhoe Holders shown here. The various combinations of reflector and holder are illustrated at the bottom of the page. R Type with Solid Top Containing Porcelain Socket B-Heel Reflector—Holder No. 609 STEEL (hil REFLECTORS Characteristie Distribution SCHEDULE R GLASSTEEL DIFFUSER my For Medium Base Sockets ~ For 100, 150 and 200-watt Mazda C Lamps The Glassteel Diffuser consists of an inner glass globe which totally diffuses the light, and a white porcelain-enameled reflector which directs most of the light downward. Aper- tures in the top of the reflector allow some light to pass upward. It efficiently produces diffused illumination for those industries where the best quality of illumination is required. They should be spaced one and one-half times their height above the working plane. Unassembled view of Ivanhoe Glassteel Diffuser. Note the apertures in the top of the enameled reflector. Standard B-Heel Type For use with any of the Ivanhoe Holders shown here. No. 908 No. 822 ; Standard Quantity, 10 Standard Quantity, 10 The vari- : ee ages “A Complete information on holders is given on page 26. ous combinations of reflector and holder are illustrated at the bottom of the page. Ivanhoe Recommended Dimensions in Inches | Packing Mazda Lamp No. te i in Stand-| Approx. Lbs. \No. tie parent a va [ val Watts | Diameter Depth ard Package |Ship’g Weight Complete Unit, Glass. 7 | and Reflector | 952 100, 150, 200 | 18 9 | 4. 40 When glassware is ordered separately, the following catalog number should be used Catalog For Diameter Standard Weight ie. No Unit zs of Glass | Package _ es | % x < fe | 5468 x 10 Genco No. 952 | 10 inches 4. 15 lbs. For those locations where light above the unit is not required, but where the other features of this design are essential, the Glassteel Unit will be supplied without the openings in the top. Then the units should be ordered thus: No. 952 without top openings. B-Heel Reflector Holder No. 822 B-Heel Refleetor—Holder No. 908 Ni SERVICE! To LAMPS SCHEDULE R GLASSTEEL DIFFUSER ——————_. For Mogul Base Sockets & ae For 300 and 500-watt Mazda C Lamps. The Glassteel Diffuser consists of an inner glass globe which totally diffuses the hight, and a white porcelain-enameled reflector which di- rects most of the light downward. Apertures in the top of the reflector allow some light to pass upward. It efficiently produces diffused illumination for those industries where the best quality of illumination is required. They should be spaced one and one-half times their height above the working plane. Reflectors and Separable Holders Characteristic Distribution Standard B-Heel Type For use with any of the Ivanhoe Holders shown here. The various Complete information on holders is given on page 27. combinations of reflector and holder are illustrated at the bot- tom of the page. No. 622 No. 909 Standard Quantity, 10 Standard Quantity, 10 Dimensions in Inches Packing Ivanhoe Recommended No. Mazda Lamp er Watts Diameter Depth No. in Stand- | Approx. Lbs. ard Package |Ship’g Weight Complete Unit, Glass ae oes 300-500 21 | 10 4 50 When glassware is ordered separately, the following catalog number should be used Catalog For Diameter Standard Weight No. Unit ot Glass Package 5468 x 12 Genco No. 953 | 12 inches 4 15 lbs. For those locations where light above the unit is not required, but where the other features of this design are essential, the Glassteel unit will be supplied with- out the openings in the top. Then the units should be ordered thus: No. 953 without top openings. > Cig a % rs Se el _s niltcrclias, ce ee a B-Heel Reflector—Holder No. 622 B-Heel Reflector—Holder No. 909 STEEL TANT REFLECTORS SCHEDULE R IVANHOE GLASS-TOP REFLECTORS DOME TYPE For Medium Base Sockets « For 75, 100, 150 and 200-watt Mazda C Lamps These reflectors are made only in the standard Dome Type. The contour of the Glass-Top Reflectors conforms to that of the RLM Standard Dome Reflectors. Glass-Top Reflectors are. porcelain-enameled, green outside and white inside. The metal part of the reflector is one compact piece, the form and the heel being connected by substantial legs rigidly welded. A glass section of good quality opal glass of light density and excellent diffusing properties permits a portion of the light to be transmitted above the hanging- height of the reflector. The glass section is firmly held in place by metal clips. The light transmitted by the glass section is not large in comparison with that in other directions, but it is sufficient to serve the definite purpose of relieving the contrast between the areas below and above the plane of the lighting units as well as lighting any equipment, as pulleys, belts and shafting mounted above the level of the reflectors. For uniform illumination, Glass-Top Reflectors should be spaced not to exceed one and two-thirds times their height above the work. Dome Type Glass-Top Reflectors and Separable Holders La No. 902 No. 822 No. 908 Standard Quantity, 50 Standard Quantity, 10 Standard Quantity, 10 Complete information on holders is given on page 26. Glass-Top Reflector Dome Type with B-Heel Dimensions in Inches Packing For use with any of the Ivanhoe Ivanhoe No. , n _ Holders for B-Heel Reflectors Use this Number in Ordering Diameter Depth No. in Standard| Approx. Lbs. A | Paces ehipping shown on page 26, or with any | | | oe standard Form O Holder. BEDD-75-G. T. 121 5% 10 25 (For 75-watt | Mazda C Lamps) BEDD-100-G. T. | 144% 614% | 10 30 (For 100 and 150-watt Mazda C Lamps) BEDD-200-G. T. ee S| 734 10 35 (For 200-watt Mazda C Lamps) Extra Glass Tops for Glass-Top Reflectors | Glass Tops are of the’ 6062 | same dimensions for | | all sizes of Glass-Top | | Retlectors-sas ees cae 40 50 | Characteristic Distribution (ih SERVICE Ui!’ TO LAMPS PORCELAIN-ENAMELED WIDE TYPE FOR OUTDOOR LIGHTING For Mazda C Lamps from 75 to 500 Watts, Inclusive These reflectors are porcelain-enameled, green outside and white inside. are weather-proof, and the solid-top extension provides for easy wiring. lighting they are usually spaced from two and one-half to five times their mounting- SCHEDULE R For Medium Base Sockets height. They should not be used indoors. Ivanhoe pec aeey Dimensions in znehe? : oie Packing zu : No | Maes? | diameter | Deni NO-PeStazd) Area | tREW-75 75 14 534 10 30 tREW-100 100, 150 16 51% 5 25 TREW-200 200 18 61% 5 30 Weatherproof Reflectors—Solid Extension with Sockets REW-500 300, 500 18 7% 5 35 They For yard Characteristic Distribution R Type with Solid Top Containing Medium Porcelain Socket R Type with Solid Top Containing Mogul Porcelain Socket jLocking sockets will be furnished for 40 cents list additional. list additional, 19 Extra Keys, 7 cents each list. Pull chain sockets will be furnished for 80 cents STEEL (hilt REFLECTORS SCHEDULE R SHALLOW DOME PAINT-ENAMELED DISTRIBUTING REFLECTORS | For Medium Base Sockets For 25, 40, 50, 60, 75, 100 and 150-watt Mazda Lamps Paint-enameled reflectors, green outside and white inside, are applicable for service with the smaller Mazda lamps where low price is an important considera- tion. They may be spaced from two totwo and one-half times their mounting- height for rough work, but for uniform illumination this ratio should not exceed one and two-thirds. Reflectors and Separable Holders Standard B-Heel Type For use with any of the Ivanhoe Fay Holders shown here, or with any standard Form O Holder. The No. 902 No. 822 No. 908 various combinations of reflec- Standard Quantity, 50 Standard Quantity, 10 Standard Quantity, 10 tor_and holder are illustrated at the bottom of the page. Complete information on holders is given on page 26. Ivanhoe | Recommended Dimensions in Inches Packing No. Mazda Lamp naa ra. PeaNoanhandand eA Dp rope: zt ; Watts | a Dia meter i Depth ‘ Pater: et Ship's Weight *BPD-25 25,50 Mill Type | 8 | 3 | 10 12 | | | *BPD-50 25, 40, 50 Mazda B | 1014 | 3% 10 | 15 | | | ‘ 60 Mazda B | *BPD-75 | f . dei vi a5 4 \\ 50, 75 Mazda (¢ IJ 12/4 4A 10 25 | *BPD-100 100, 150, 200 1514 | 614 10 30 *The D types of these reflectors for attaching directly to brass shell sockets as illustrated on page 8, are the DPD-25, DPD-50, DPD-75 and DPD-100. They can be obtained at a cost of 15c additional to the List Price of the corresponding B type reflectors. B-Heel Reflector—Holder No. 902 B-Heel Reflector—Holder No. 822 B-Heel Reflector—Holder No. 908 20 SERVIC n (llth TO LAMPS SCHEDULE R SHALLOW DOME PORCELAIN-ENAMELED DISTRIBUTING REFLECTORS , > For Medium Base Sockets For 25, 40, 50, 60, 75, 100, 150 and 200-watt Mazda Lamps Where requirements are not exacting, as in storerooms and warehouses, these reflectors may be spaced from two to two and one-half times their height above the work. The R L M standard line, listed on page 10, is recommended for use with Mazpa C lamps where uniform illumination is desired. ChavaclenaneDeenuhion Reflectors and Separable Holders Standard B-Heel Type For use with any of the Ivanhoe Holders shown here, or with any Standard Form O Holder. The various combinations of reflec- No. 902 No. 822 No. 908 No. 608 tor and holder are illustrated at Standard Quantity, 50 Standard Quantity 10 Standard Quantity, 10 Standard Quantity, 10 the bottom of the page. Complete information on holders is given on page 26. Teh ee Recommended Dimensions in Inches Packing No. Mazda Lamp : ihs No. in Standard; Approx. Lbs. Watts Diameter Depth Package Ship’g Weight *BED-25 25. 50 Mill Type 8 3 10 15 *BED-50 25, 40,50 Mazda B) = 1014 3°% 10 20 ay REN Se {60 Mazda B a y eS BED-75 \50, 75 Mazda C {| 12/4 4A a ahs *BED-100 100, 150, 200 154% 614 10 35 Weatherproof Reflectors—Solid Extension with Sockets R Type with Solid Top Containing Porcelain Socket {f 60 MazdaB | 121 634 OC 10 30 RED“> — |\ 50,75 Mazda Cf} 1” | t rh) Se RED-100 100, 150, 200 154 . | 8 5 *The D types of these reflectors, for attaching directly to brass shell sockets as illustrated on page 8, are the DED-25, DED-50, DED-75 and DED-100. They can be obtained at a cost of 15¢ additional to the List Price of the corresponding B type reflectors. B-Heel Reflector—Holder No. 902 B-Heel Reflector—Holder No. 822 B-Heel Reflector—Holder No. 908 B-Heel Reflector—Holder No. 608 2] til STEEL {ijl REFLECTORS SCHEDULE R WEATHERPROOF ENCLOSING UNITS FOR MAZDA C LAMPS For Medium and Mogul Base Sockets No. 804, No. 806 and No. 808 are weather-proof. They are furnished with porcelain-enameled reflectors, green outside and white inside, which gives an effective downward distribution of light. The enclosing globes are of Genco, an opal glass which gives excellent diffusion with low absorption. No. 754, No. 756 and No. 786 are also weather-proof, and provided with Genco globes. Thestandard finish of the metal parts is green porcelain enamel. Dimensions in Inches Packing Porcelain-Enameled Recon caied Weather-proof Units Ivanhoe Description Mazda C Depth Size No. in | Appro. No. Lamp Watts | Over | Max. of Stand. | Lbs. All Diam. | Fitter | Qua’ty | Ship’g Wt. For Medium Base Sockets 804 Fixture and Glass........{100, 150, 200 1244} 12 6 4 35 805 Bixture. only pec 534| 12 6 4 15 Ti OMG aSS\O Tl yee eee 8 8 6 4 20 For Mogul Base Sockets 806 Fixture and Glass........ 300, 500 1334] 15 6 4 Ad SO7eah, bixture only aoe: 9y3) 115 6 4 25 of Tass \| CQEREGTAN A 3 co Mood eon oak 8 8 6 4 20 7 808 Fixture and Glass........ 750, 1000 18 15 8 4 65 J S09. || Eixture onlyae 2 ne 374| 15 8 4 30 eg 774 Glasstonl yaar eee 1134] 12 8 4 35 Porcelain-Enameled | Weather-proof Units For Medium Base Sockets 754 Fixture and Glrss........| 100, 150, 200) 121% 8 6 A 35 755 Bisturevon| varie 4% 6 6 + 15 775 Glass Only cee eee 8 8 j 4 20 | For Mogul Base Sockets | 756 Fixture and Glass........ 300, 500 1334 8 6 4 36 7th |) Mhbqanneeoolhiee 1 onc ce sone 638 6 6 4 16 775 Glasscon ly, ear c ee 8 8 6 4 20 786 Fixture and Glass........ 750, 1000 18 is 8 4 55 759 Hixture only eee | 6% 8 8 4 20 XN 774 Glass on] yee ee ee | 1134] 12 8 4 35 . | | | ‘ ; | | | “ ee | i(\\|I SERVIC n (lil TO LAMPS SCHEDULE R PORCELAIN-ENAMELED REFLECTORS FOR VAPOR-PROOF FITTINGS For 60, 75, 100, 150 and 200-watt Mazda Lamps These reflectors are recommended for use in places where the lamp base and socket must be protected from acid fumes or moisture and where vapor-proof fittings are used. The reflectors listed here fit various standard conduit fittings. the standard reflector holders available. Ample clearance is allowed in the extension for the globe and guard as listed for these fittings. ‘They are porcelain-enameled, green outside and white inside, and the complete unit in each case is vapor-proof. They are attached to these fittings with For uniform illumination they should be spaced not to exceed one and two-thirds times the mounting- height. | Dimensions in | Inches Packing Ivanhoe Type of Recommended | No. in ae No. Fitting amp Size Diam. | Depth Standard ene in Watts Package Shipping Weight | No. 930 930 | . *VED-60 For Type V | 60 12 Ale 10 25 > Fittings 931 *VEDD-75 to 12 5% 10 25 932 P ; *VEDD-100 For Type VH} 100, 150 | 14 634 10 30 | Fittings | 933 *VEDD-200 200 1614 8 5 25 | | | Nos. 931-932-933 *Do not have clips; otherwise same as illustrated. The above reflectors are attached to the condulet bodies by means of reflector holders or holder guards supplied by the manufacturers of Vapor Proof Fittings. These holders are enumerated below. Reflector Condulet Fitting Reflector Holder Holder Guards 930 V Type Crouse-Hinds V61 Crouse-Hinds V71 or V771 931 ,V Type Unilet 2892 Unilet 1184 5-M Type VV Fittings 5001 RLM VV Fittings Guard No. 5003 932 VH Type Crouse-Hinds VH 61 Crouse-Hinds VH71 and VH771 933 VH Type Unilet 2894 Unilet 1189 \|5-ML Type VV Fittings 5002 RLM VV Fittings Guard No. 5004 VED-60 hits : Crouse-Hinds V 875 Crouse-Hinds V559 and V759 VEDD-75 .7V Series Form 75 VEDD-100 WH Series Form 200 Crouse-Hinds V 8200 Crouse-Hinds V2009 VEDD-200 | 23 STEEL (hil REFLECTORS properly serve these lamps for localized lighting. for use with these lamps. sockets. DEM—25 The DEM-25 reflector is especially designed for sewing table lighting and other loca- tions where the reflectors must be small, and not interfere with the operator’s view of the work. It is fitted only with the D type holder for brass sockets, and is of the deep bowl type, porcelain-enameled, white inside and green outside. No. 634 The No. 634 reflector is used extensively for sewing machine lighting with 10-15 and 25- watt Mazda C lamps. They are applicable for other kinds of service requiring a small reflector. They are finished in aluminum and provided with SCHEDULE R REFLECTORS FOR MAZDA MILL TYPE LAMPS The design of the 25-50-watt Mazpa Mill Type lamp in the P-19 bulb, requires a line of small reflectors to Bowls, angle and distributing reflectors are listed below They are available with both the B-heel and D-type fitters for brass or porcelain BEB—25 The BEB-25 is a larger bowl type reflector for localized lighting with the Mazda Mill Type lamp. It is porcelain- enameled, white inside and green outside. BEL—50 The BEL-50 is a 30° angle type reflector, porcelain-enam- elea, white inside and green outside. It is for operations where the light must be direc- ted upon the work from the side. SPECIAL SERVICE REFLECTORS No. 888 The No. 882 and No. 888 reflectors have been standardized by the United Department for mail case, furniture in a post office work room. States Post Office bag rack, and other They are porcelain-enameled, green outside and white inside, and are furnished with a simple holder which permits the reflector to swivel. They attach to brass shell BED—25 and BPD—25 The BED-25 and BPD-25 are distributing type reflec- tors for Mazda Mill Type lamps; also for localized light- ing, for operations where the light must be spread over a wider area. They are white inside, green outside. The BPD is paint-enamel finish and the BED is porceizin- enamel finish. No. 751 The No. 751 is a 45° angle type reflector. It is porcelain-enameled, green outside and white inside. It is suitable for lighting tennis courts, motion picture studios and indus- trials quired, essential the mounting-height of the reflector. Use holders Nos. with where side lighting is re- and vertical illumination is on services as high as 622, reflector. 705 or 909 this Detailed a type D holder. This re- recommendations for tennis court flector will not accommodate a Sockets. eels may be obtained on Mazda Mill Type lamp. = ea. ; ~ foe ie Wena Pe Dimensions in Inches Sette Packing jer ¥ i NS Mazda Lamp PL ee No. Tatts iame "i | No. in Stand- Approx. Te 0 Watts Diameter Depeb | ard Package _ Ship’g Weight _ 634. 10, 15, 20 334 4 | 15 ff 751 300, 500, 750, 1000 1534 1434 5 30 882 25, 40, 50, 60 7M 5% 10 15 888 25, 40, 50, 60 8l4 614 10 20 DEM-25 | 434 3% 10 | 12 *BEB-25 25, 50 61% 414 10 | 12 *BEL-50 Mill Type 7 51% 10 15 | *BED-25 | S 3 10 15 | *BPD-25 8 3 10 12 | to brass shell sockets as illustrated on page 8, are the DEB-25, DEL-50, DED-25 and *The D types of these reflectors, for attaching directly thee can be obtained at cost of 15¢ additional to the List Price of the corresponding B type reflectors. 24 DPD-25, T SERVICE MMI) TO LAMPS SCHEDULE R COMBINATION OUTLET BOX COVER AND RECEPTACLE Ivanhoe Distance Between This Combination Outlet Box Cover and medium Base Re- ceptacle can be used with any standard deep or shallow outlet box of the dimensions indicated. It provides a convenient means of mounting reflectors with 214-inch B-heels flush against the ceiling. The attachment device is the U N O shade holder so that reflectors can be instantly attached or removed without tools. The cover is conveniently attached to the outlet box by means of the bay- onet slots which fit under the heads of the holding screws. Diameter Packing No. Outlet Box Attachment Outlet Box Numbenin Approximate Pounds* screws Inches Standard Package Shipping Weight 943 234 in, 314 10 10 954 314 in 4 10 10 BRACKETS AND SUSPENSION These may be used on any of the Mazda C enclosing units listed on page 22, or any of the solid top reflectors or holders listed in this catalog excepting holder No. 902 Length, 3%¢ inches; diameter of pipe, 14 inch; standard finish, black enamel; standard approximate No. 0658 quantity, 20; shipping weight, 15 Ibs. No. 0660 Length, 30 inches; diameter of pipe, 14 inch; standard finish, black enamel; standard quantity, 10; approximate shipping weight, 60 Ibs. IVANHOE PORCELAIN INSULATING BUSHING The Ivanhoe Porcelain Insulating Bushing is suitable for all Ivanhoe separable holders and R-Type Reflectors which are tapped for 14-inch pipe. It is made of high quality porcelain, well finished; clean-cut threads; inside top edge beveled. The Bushing insulates the holder and prevents fraying and wearing of insula- tion on the wire. Catalog Number | Dimensions, Inches Standard Quantity Weight 5 lbs. (| STEEL (Will REFLECTORS SCHEDULE R HOLDERS FOR B-HEEL REFLECTORS These holders offer a solid, w to wire and install, as they can be put into place whenever conv orkmanlike method of suspending B-heel reflectors. enient, independent of the reflectors. They are convenient For Medium Base Lamps and Reflectors with 214-inch Fitters No. 902 No. 902 is a steel holder finished in green paint. The top band of the holder attaches to the shade holder groove of a porcelain or composition socket, and the bottom band fits around the B-heel of the reflector. No. 822 This is a_ porcelain socket holder, tapped at the top for a half-inch conduit. It attaches to the B-heel by means of three clamps which are locked into place by a ring. No. 908 The 908 holder is for 214” B-heel reflector. It consists of an outer shell and cap of cast aluminum, enclosing a medium porcelain socket with a fitting tapped for 14” conduit. The heel of the reflector is gripped by two spring clamps which keep the reflector firmly against the flange in the outer shell as the cap is screwed down over the fitting. There are no screws or lock nuts to adjust, so that no tools are necessary when attaching or removing the reflector. Being of cast aluminum the holder is light, strong and unaffected by weather. No. 608 No. 608 holder is for 214” B-heel reflector. It consists of a drawn alumi- num shell containing a medium porcelain socket. The reflector is attached or removed by a turning motion, and held securely upona bronze spring. The design embodies the well known bayonet coupling principle, the lugs on the side of the B-heel engaging a formed wire ring made of spring bronze, which is inside of the shell. The top casting is tapped for 14’’ pipe. There are no screws or lock nuts to adjust, so that no tools are necessary when attaching or removing the reflector. Being of aluminum the holder is light, strong and unaffected by weather. No. 884 The No. 884 set screw holder is tapped at the top for 4’ conduit. It is finished in green porcelain enamel, and contains a porcelain socket. Three set screws attach the holder to the B-heel and each screw is provided with a tension-spring wire to pre- vent its being oceneaiee vibration. Holders including sockets can be supplied with lamp-grip sockets if so desired Ivanhoe No. Dimensions Packing Diameter, Fitter Inches Rech Ces 214 334 24 234 24 34 Quy % 24 325 Number in Standard Package Approximate Lbs. Shipping Weight 10 10 10 10 10 10 10 10 26 if|{|l SERVIC xl {hh TO LAMPS SCHEDULE R HOLDERS FOR B-HEEL REFLECTORS These holders offer a solid, workmanlike method of suspending B-Heel reflectors. to wire and install, as they can be put into place whenever convenient, independent of the reflectors. This illustrates how the cover of the holder is raised on the pipe in order to wire the holder and clamp it to the B- heel. They are convenient For Mogul Base Lamps and Reflectors with 314-inch Fitters No. 622 This is a porcelain socket holder, tapped at the top for a half- inch conduit. It at- taches to the B-heel by means of three clamps which are locked into , place by a ring. No. 705 This is a green porce- lain-enameled set-screw holder containing a porcelain socket. It is tapped at the top for a half-inch conduit, and attaches to the B-heel by two lugs and a set screw. The screw is provided with a tension spring wire to prevent its being loosened by vibration. No. 909 The No. 909 holder is for 314” B-heel reflector. It consists of an outer shell and cap of cast aluminum, enclosing a mogul porcelain socket with a fitting tapped for 146’’ conduit. The heel of the reflector is gripped by two spring clamps which keep the reflector firmly against the flange in the outer shell as the cap is screwed down over the fitting. There are no screws or lock nuts to adjust, so that no tools are necessary when attaching or removing the reflector. Being of cast aluminum the holder is light, strong and unaffected by weather. No. 609 No. 609 holder is for 314” B-heel reflector. It consists of a drawn alumi- num shell containing a mogul porcelain socket. The reflector is attached or removed by a_ turning motion, and _ held securely upon a bronze spring. The design embodies the well known bayonet coupling principle, the lugs on the side of the B-heel engaging a formed wire ring made of spring bronze, which is inside of the shell. The top casting is tapped for 14’’pipe. There are no screws or lock nuts to adjust, so that no tools are necessary when at- taching or removing the reflector. Being of aluminum the holder is light, strong and unaffected by weather. Holders including sockets can be supplied with lamp-grip sockets if so desired Dimensions Depth, Inches Packing Number in Standard Package Approximate Lbs. Shipping Weight Ivanhoe No. Diameter, Fitter Inches 622 34% 705 314 909 34 609 3144 10 10 10 10 rhs) ert 30 25 ( A INDEX PaGE PAGE Angle Type Reflectors, Porcelain Glass-Top, Extras . Pie tna 18 Enameled = tae eee eee StL Glassteel) Diffusers?) © ae en ee O17 Bowl Reflectors, Porcelain iaameled . 12-13 Glassteel Diffusers, Retraee Sere ee Oe LO LZ, Bracket and Suspension. : or 25 aa ea me Reflectors for a edium Base Lamps Dome Reflectors, R. L. M. Briard .. 10-11 Heldere te Bilieel eaters ‘or Mogul Dome Reflectors, Shallow, Paint Base Lamps . 27 Enameled... ...-. +--+: -. 20 Insulating Bushing, Porcelaint 25 Dome Reflectors, Shallow, Porcelain Outlet Box Cover and Receptacle 25 Enameledg2an segs Ps Sect 21 Reflectors for Mazda Mill Type Lamps Enclosing Units, Porcelain Enameled, and Special Service Reflectors . 24 Weather-proof ... 4 Meee ne DD Vapor-proof Reflectors. , 23 Glass-Top Reflectors, Porecinin Wide Type Reflectors, Porcelain Enameled ®.% #25 A. a eee en ae 18 Enameled. 19 CatTaLoG No. PAGE CaTALoe No. PAGE GCOS AAS Sarin eA ons Deg ie aa soe gees 26 933. 93 CODE Coe SR Et ts te ts Tepe eon noe eA oP can ws Q7 943. 25 G2 eae a PAN cs, Oe AUS eprerac cate ae ote ope ii 952. 16 GOA a ats sos PR eee te ee ent” eee 953. 17 OGS See en ee orn een ate ce are aon Clea. 25 954. : 95 0660. Q5 5468 x 10 Genes 16 705. Q7 5468 x 12 Genco . 7 ole Q4 6062 . 18 754. 22 BEB-25. : 24 Woo" ea BEB-50, 75, 100, 200. 12 756. 22 BEB-500, 1000 13 WO 22 BED-25 21,24 759. 29 BED-50, 75, 100 . Q1 7A. ial BEDD-50, 75, 100, 200 . 10 igor 22 BEDD-75 GT, BEDD-100 GT 18 786. 22 BEDD-200 GT 18 804. 22 BEDD-500, 1000. 11 805. 22 BEL-50. 14,24 806. 292 BEL-75, 100 14 807. Uae BEL-500, 1000. 15 808. 22 BPD-25 : 20,24. 809. De BPD-50, 75, 100 . 20 822. 26 DEM-25 Q4 882. 24 REB-75, 100, 200 12 8S4. 26 REB-500 . 13 8ss. 24 RED-75 Q1 901. 25 RED-100 . Ae ate Q1 902. 26 REDD-50, 75. 100, 200 . 10 908. 26 REDD-500, 1000 11 909. Q7 REL-75. 100 14 930. 23 REL-500 . . . : 15 vs REW-75, 100, 200, 500 . 19 931. Q3 VED-60 ee 23 932. I3 VEDD-75, 100, 200 23 ILLUMINATION DATA PaGE PAGE Catalogue Numbers, Explanation . . . . . . . 9 Packing, Special Features 9 Construction of Ivanhoe Reflectors. . . . . . . 8 Service to Lamps : : 2 Finishes on Ivanhoe Reflectors. . . . .... . 9 Spacing and Mounting-Height Table 5 8 How to Plana Lighting System . . 3 Watts per Square Foot Required for Different Intensities of Light Required for Various Kinds Intensities ae a 7 of Work 7 Where and How to Use Different Types of Location of Outlets. 7 Reflectors. =o SN Meee tee Ea a OR Se 4 Ivanhoe Products may be ordered from these publications Se Commercial Glassware—Keldon, Ace, Trojan and Glass Reflectors—from Catalog No. 333. Bowls and Shades with Rozelle Color Decorations from Catalog No. 355 and Supplement No. 390. Molded, Blown and Pressed Ornamental Glassware from Catalog No. 375. IVRE and SUDAN Glass with etched Designs from Catalog No. 388. Lighting Equipment for Railroad Service from Catalog No. 373A. The Ivanhoe Ivadine from Folder No. 40-321. Prices are not listed in all the above publications Price Lists should be requested with the various catalogs and folders