AYERY LIBRARY COLUMBIA UNIVERSITY: — MANUFACTURERS OF THE HUMPHREY GAS ARC LAMP. KALAMAZOO, MICH. U.S.A. New York, 46 W. Broadway London, England, 21 Bedford Row San Francisco, 718 Mission St. Wellington, New Zealand, 120 Victoria St. IGHT years ago this company produced the first Gas Arc Lamps. ‘To-day the same lamps are giving as efiicient service as when first installed. During most of this time we have had our man- ufacturing facilities taxed to the limit to keep pace with the demands upon us. Our plant has been repeatedly enlarged, and our types of lamps have been varied along conservative lines. In producing new designes we have endeavored to create some- thing that will supplement and round out a gas company’s lighting facilities rather than supersede former productions of proven merit. It is not our aim to make lamps that will merely cater to momentary fancies as regards style and shape. We believe that the best interests of the gas business are conserved by fewer lamps of standard construc- tion, and work to this end. Inverted mantle lamps, both single burners and clusters, have recived much attention during the last few years. They possess poin's of distinct merit sufficient to insure their use even though their operation has not yet been brought to the same degree of simplicity that attends the upright mantle lamps. The Humphrey Inverted Gas Arc Lamp under proper condi- tions of gas supply will give most wonderful illumination results. ‘Thousands are now in successful operation. Observation leads us to believe that the Inverted Gas Arc will create a place for itself without unduly disturbing the demand for our lamps of established design now so satisfactorily in use. Local conditions best known to gas managers will determine just how fast the Inverted Arc can be introduced without prejudice to other business. Frankly we admit that there are many cities where the arc lamp patronage is now in such gratifying shape that the Invert- ed Arc will be merely supplementary to the standard types. In these cities they will find lodgment in stores in which the present types do not appeal and therefore they will not disturb present conditions. Fol- lowing our fixed policy of acting in entire harmony with the best interests of the gas trade we expect the new lamps will be handled by and under the direction of the gas companies themselves. All Humphrey Lamps will continue to bear our unconditional guarantee of mechanical and illuminating superiority. GENERAL GAS LIGHT Co. Progress T° those who have actively engaged in the gas bus- iness during recent years it is needless to say much by way of introduction to a catalogue of Humphrey Gas Arc Lamps. Progress in gas sales, energetic and well directed management, and the Humphrey Lamp have been so closely allied that one suggests the others. Yet in so rapidly expanding an industry as the gas business, new men must be constantly recruited, and to them we will briefly sketch the history of one of their greatest weapons against all competition in the lighting line. When the Humphrey Gas Arc Lamp was placed on the market, it was the first practical and economical high power gas lamp ever produced. Its success was imme- diate; no gas appliance ever met with such extraordinary appreciation and phenominal sale. Electrical Competition HE field for the Humphrey Gas Arc Lamp brings it into direct competition with the electric arc. In our opinion at no time could the open elec- tric arc lamp be fairly said to be a good or even practical light for indoor purposes. It is but fair to state, however, that the ‘‘Incandescent, or Enclosed Arc,” is a good light, and when pushed with energy has no difficulty in displacing in stores, etc., the ordinary gas fixtures and other forms of individual incandescent gas lights with their unclean or broken chimneys, misfit bunsens, carbonized mantles, costly maintenance, and inconvenient methods of lighting and extinguish. And it is with the Humphrey Gas Arc Lamp only that this competition can be successfully met. We claim superiority over the electric arc as follows: More Actual Light. Greater in volume and has not the thin appearance of the electric light. Better Color. Shadowless. Steadier. Requires Less Attention. Cost of Light to Consumer Less. First cost of Lamps Installed to Gas Compan- ies is Much Less. Probably About Half the Cost of an Electric Light to Electric Companies. The fact that we are selling thousands of these lamps to companies having combined plants we believe substantiates our claims. During the past eight years the Humphrey Gas Arc Lamps have been in constant and direct competition with the best forms of electric lighting, and Gas Com- panies by their means have been able to stay the stam- pede to electricity and to preserve and regain their most profitable source of income. They are to be found in use in practically every city in the United States, and in many cities in proportional numbers to the city of Chicago, which alone has 75,000 Humphrey Lamps in regular service. They are also to be found in use in every civilized country in the world, and up-to-date gas companies everywhere, instead of wondering how to resist en- croachments, are now the aggressive ones. Small Lighting Units vs. Large (ise in the face of this wonderful record, well meaning and sincere gentlemen of more scholarly attainments than actual experience in. the com- mercial department of the gas trade occasionally rise in the councils of their brothers and descant profoundly on the scientific superiority of small light units in com- mercial gas lighting. Others whose aims cannot be urged as disinterested are busily engaged in an attempt to spread a similar propaganda. We have no quarrel with the scientic arguments of our erudite friends or the thinly veiled advertising of merchants with other wares to sell. Small unit gas lighting conditions, however, are practically the same now as before the advent of the Humphrey Gas Arc Lamps. Gas men as able and in- genious as ever graced the profession then fitted single lights in all conceivable combinations, maintained them at highest efficiency regardless of expense and lost out against the ever advancing electric light. What hope of better success to-day? The higher power single burners have been tested and found wanting; the one mantle inverted burners for commercial purposes have all the disadvantages of the upright lamp and some objection- able perculiarities of their own. Humphrey Gas Arc Lamps, self lighting, reliable, convenient, economical and efficient, fulfill the requirements of the business man. Installation and Maintenance AS companies install and maintain Humphrey (is) Lamps in various ways. We have obtained data from nearly every gas company in the country, and we find that the ones who get the best results are those who retain ownership of the lamps, install them free, or on a small monthly rental, and maintain them at a cost to the consumer only sufficient to defray the actual cost of maintenance. A special booklet containing fac-simile letters from gas companies, showing copies of leases, maintenance blanks, etc., will be sent any gas company on appli- cation. But whatever system of installation any gas com- pany may adopt, whether the lamps are sold outright to the customer or are installed on a monthly rental basis, it is of the greatest importance to the gas business that each company should maintain the lights, replace broken mantles, keep the glassware clean and see that the lamps are always in working order, the same as an electric company does. Once this system is adopted, gas com- panies will see their lighting business grow most wonder- fully and will always have stores which are beautifully lighted and a credit to the gas industry. New Business J". has been repeatedly stated to us by managers of gas companies that they consider the earnings of a Gas Arc Lamp during a year to be fully equal to the earnings of a gas stove. This statement we know to be practically true, and it goes to prove what we have always maintained, that commercial lighting is the very cream of the gas business. Gas companies who have pushed the stove business the last few years fully appreciate the increased con- sumption which has resulted from their efforts. But much of the business was obtained at considerable out- lay for mains and services which were run hundreds of yards to get a few new customers, while the great busi- ness of lighting stores and factories in the center of the city with the mains and connections all ready, has been neglected. Mechanical Construction 5 es remember that we are the largest and probably the only exclusive gas lamp house in the world. We make more lamps than all other lamp houses put together, and we manufacture our goods instead of jobbing them out to metal working institu- tions—a piece here and a piece there—to be made on competitive bids and in the cheapest possible way. Every article in this catalog except glassware and lamp posts is our own product. This insures uniformity of construction and interchangeability of parts, simplifying the matter of repairs at a future date. Our factories are all equipped with the finest facil- ities for doing work right. Humphrey Lamps are made of the best material and will stand wear and tear. We have tried and we believe succeeded in producing the very best lamp it is possible to build. ECrpert LAnowledge E have studied the gas business with a view to yw building up the lighting end of it. The own- ership of this company is represented by owners in more than forty prominent gas companies. We have tried to make such goods as in our estimation would assist the gas company to increase its sales, and are con- stantly placing in the hands of our customers data cal- culated to serve this end. The conditions governing the variation in style of burner, size and number of gauzesand orifice of gas ways to be used, the control of the pressure and the problems generally arising from the differences in combustion of various gases are fairly well understood by most gas men. We have, however, made many and exhaustive experi- ments under all kinds of situations and when we are furnished with data covering details of manufacture and distribution as they exist in the various cities, we furnish lamps equipped to meet them. We invite and are always ready to respond to any inquiries which we may get re- garding these matters and we will cheerfully send a representative where the difficulties are not readily un- derstood and overcome. Standard Jndoor Lamp HIS is the original Gas Arc Lamp that revolution- ized the commercial gas lighting business. | lm- provements in detail of construction have been made from time to time and it is a thoroughly up-to-date lamp. The metal work is all so shielded by the glass that deteriorating effects of heat and combustion pro- ducts are practically avoided. This design continues to be one of the best selling of our entire line. We guarantee all four-burner lamps to give as great ora greater amount of light and a much more satisfactory illumination than the so-called 2000 candle power electric arc, with a consumption of 16 to 18 feet of gas per hour. These startling results are obtained without the use of chimneys. The grouping of the mantles around the central supply pipe preheats and greatly expands the gases; the peculiar construction of the burners effects proper and complete aeration of the gases, thus greatly increasing the efficiency of combustion and economy in amount of gas used. The mantles will not carbonize or blacken when burners are clean and properly cared for. Indoor lamps may be supplied with the one mantle night light. This was especially designed as its name implies to allow the use of but one burner as an all-night light in business houses, and the equip- ment of any store should include one lamp of this style. For places where the full power of light is not required at all times, such as upper floors, stock rooms, etc., this lamp is very useful. Light from all the mantles or from only one may be had as wanted by a pull of the chain. The small corner illustration shows lamp with one mantle in service. " « a 4 P | mr) 5 ‘Tl. i J : 2 : : ee AS é ae er — i {ss _- 5 ; La n F 1 | ¢ 7 x hs = - 4" i a cy Standard Indoor Lamp s 44 i p af m f il ; ¥ ; ee ; > he ~ Rg » 7 er * vd . ‘e . Cylinder Lamps N the Cylinder style of lamps we are able to use a more compact construction and to a greater extent abandon the large ceiling plate. Combustion efh- ciency is improved by the draft-inducing cylinder which has been carefully proportioned to get just the right effect. All Humphrey Indoor Gas Arcs are instantly lighted simply by pulling the chain, and extinguished as easily. The burners are ignited by means of a small pilot jet burning but a few feet of gas a day, which by convenience and time saving, pays its cost many times over. Humphrey Lamps will replace electric arcs, light for light, with the most satisfactory results in point of illumination and a saving in cost of 25 to 50 per cent. For low ceilings where it is desirable to use the 16- inch ceiling plates either of opal glass or enameled steel, we supply a sliding collar which fits over ordinary 3% gas pipe and may be fastened by a set screw at any height; this forms the support for the ceiling plate holder. Cylinder Lamps are used either with or without lower shades and with round or pearshaped globes of clear or alabaster glass. In view of the many combina- tions of glassware regularly supplied with these lamps, we particularly urge our customers to be specific in stat- ing just what is wanted. Cylinder lamps are finished in polished nickel or porcelain enamel and nickel. Porcelain enamel is the most durable finish for a ventilator or cylinder and the purchaser has a range of choice as to color effects. White and gold, green and gold, blue and gold or black and gold porcelain is constantly in stock. Cylinder Lamp 13 Fudoor Fnberted Lamps N Inverted Gas Arc Lamp, to justify its existence and the higher production cost inseparable from any workmanlike construction, must give more light for the gas used. Reliance on the natural tendency of an inverted mantle to throw the light down and the novelty of such a burner is not sufficient. Lamps using inverted mantles arranged in clusters are no new thing either at home or abroad, but lacking real increased spherical efficiency, they have simply ap- pealed to the occasional buyer asking a change, and not to the discriminating expert demanding actual improve- ment. . The Humphrey Inverted Arc burns the gas right, the fixture is compact and handsome, the distribution of light perfect, and the illuminating effect wonderful. The five-mantle lamp has been tested in the Electri- cal Testing Laboratories of New York and found to give 460 candle power on a gas consumption of 15% cubic feet per hour. The light distribution far surpasses any of the various tungsten cluster reflector combinations. The three-mantle lamp will use from 10 to 12 feet of gas per hour, yielding 30 candles per foot of gas. For close competitive work it will land the business. Especially recommended to use against gasoline systems. The operation of the lamp is simple and maintenance cost will be moderate. By means of a rachet device the same chain that is pulled to light the lamp will extinguish it when pulled again. An indicator at all times plainly shows the position of the valve. The globe swings down allowing access to mantles without removal from the holder. The mantles are held in a single plate which may easily be swung aside, mantle renewals and burner clean- ing being accomplished with great ease. Burners are of non-conducting, non-corroding por- celain; a most important thing in lamps of the inverted pattern, Clear globes, as usual, will give the most light, but, on account of the high power of the lamp, alabaster globes will be very popular; they show as a solid ball of white light. Indoor Inverted Arc 15 factory Lamp HE Humphrey Factory Lamp is the result of a careful study of conditions in our own and many other shops. It meets a long felt want and solves the problem of economical factory illumination. In the construction all glassware is eliminated ex- cept the globe. The canopy, reflector and globe holder are all made of steel, coated inside and out with porce- lain enamel. Ninety per cent. of all dust and dirt accumulating about a lamp in a work shop drops from the ceiling as a result of jars from the floor above or vibration of shaft- ing, etc. The canopy fully protects the interior of the Factory Lamp. The bottom is closed in as much as is practical in an up-draft lamp. _ The special burner construction permits all dust to pass through to flame where it is consumed. The lamp is extremely durable, efficient and hand- some, and after long use needs only to be dusted to resume its original appearance. In factories where jar and vibration prevail we earn- estly recommend the use of our all metal Anti-Vibrator; this is shown in cut but not included in price of lamp. The Humphrey Factory Lamp is not a cheap piece of work but a high grade article built for its special pur- pose and will find its sale among careful buyers where quality and efficiency are the determining factors in a purchase. Can be supplied with one mantle night light if wanted. Factory Lamp 17 Outdoor Lamp HE Humphrey Outdoor Lamp has opened prac- tically an entirely new field of opportunity for the sale of gas. Gas companies have not been slow to appreciate this and in the past few years outdoor lighting business of all kinds has been developed amazingly. We have special literature dealing with this subject so will not enlarge upon it here, but hope that all who afe interested will give us the privilege of explaining fully the great possibilities in this line. Experience has shown that brass, copper or any other unprotected metal will not stand the action of the heat and the elements which an outdoor lamp is subject to. After much investigation we have found that cer- tain grades of steel, when coated with a special heat resisting enamel fused to the metal in a white hot muf- fe, will meet the exacting conditions of outdoor gas lighting. The lamp is lighted by a turn of a key, no chain to tempt mischief makers to light burners when not wanted. The key is detachable and may be removed entirely if found desirable. Globe can be instantly lowered to put on new man- tles by simply pressing springs in bottom, or removed to clean by pressing other similar springs. The sliding rods carrying globe Support move in gas tight casing, doing away with any necessity for stuffing boxes. i Lamps are storm and bug proof. The parabolic reflector shown in the small illustration will throw all the light in one direction and is highly to be recom- mended for certain classes of lighting. Globe lowered for changing mantle, Outdoor Lamp 19 Globe removed for cleaning. HE Humphrey Residence Lamp is an artistic fix- ture adapted to moderate conditions of incandescent gas lighting. All the objectionable features in- herent in old style long arm chandeliers are eliminated. The lamp is compact, durable, convenient. The light is strong, but this can be softened with fancy shades of glass, silk or beads, so as to harmonize with any sur- roundings. It makes an ideal light in the parlor, sitting room or over dining or library table. All parts are quickly re- movable for cleaning, same as in the large Ornamental Arc shown on page 23. The ceiling canopy is of sufficient size to be effective without being cumber- some or unsightly. ma ut % Mani nth iwi rm “3 es GuennG GAS capt co : 3202 3204 Chestnur eet» «3B HILADEL PETIA \ vapsstte TES KH, z, CG iy) NS y = HN mee Boulevard Lamp post N THE remarkable development of outdoor gas lighting which the improved Humphrey Outdoor lamp has made possible, the illumination of store fronts by means of lamps suspended from ornamental posts set at the curb has proved exceedingly popular. We can refer to individual installations of thirty to forty posts used in lighting up corner locations in some of the larger cities. In other cities improvement associations have used this method of drawing attention and trade to their particular locality. The post we offer is of strong, handsome con- struction, an ornament to any place. Its dimensions are fully given in the line drawing on the opposite page. The curve top section is fitted with a 34-inch gas supply pipe centered within the outer casing so as to be insulated from cold. It does not show in our illustration but is always supplied. Posts are made either with the ornamental scroll work or with simply a plain curve top. Dimensions are same for both. The base should be set in concrete, care being taken not to get any inside the post or in contact with the gas service pipe on account of the liability to transmit frost. A flanged base can be furnished for bolting to walks that are excavated beneath. 28 et oot Ih Plain Post Ornamental Post 29 Glassware N the following three pages are shown a variety of Globes and Shades. More detailed description will be given in the separate net price-list. Nine-inch Globes are used on all 3, 4, 5 and 6 bur- ner indoor lamps. We have them in two shapes, round and pear, the latter being favored for cylinder lamps without shades. Clear Globes will pass more light, but Alabaster is preferred by many on account of its power to soften the light without a great deal of diminution in volume. Eight-inch Globes are used on standard 2-burner indoor lamps. Eleven-inch Globes are used on all outdoor lamps. Nine-inch Bowl Globes are used on Residence Lamps, 10-inch Domes or Reflector Shades, and 9-inch Canopies or Ceiling Shades. Large Ornamental Arcs take 12-inch Bowl Globes, 1334-inch Domes and 14-inch Ceiling Shades. Domes tor both fancy lamps are same shape as the 17-inch Re- lector illustrated and Ceiling Shades same as 16-inch Roll Rim Shade. Nine-inch Ball Globes are regularly supplied on 3- light Inverted Arcs, other designs furnished at slight advance in price. Ten-inch Ball Globes and other shapes 10-inch size fit the 5-light Inverted Arc. 30 | AGROUND BALL 9" ALABASTER CROWN GL . SO ENO ORE ee é - as toned ny ssn ‘ a § ALABASTER BALL With wire guard 10 STAR CUT BALL_10_ STAR CUT fasten) Reike)=) (0m sti ta ten AGROUND TWIST BALL 10'f (2 = aa f is 31 _}) DEAR Cur BOWL OF D 09142 eae 2 PEAR GLO ETCHED 2. if ICE CREAM OUTDOOR GLOBE LETTERED a 32 oe Bap i 9" PEAR GLOBE ETCHED oom JHE HUMPHRENE st af di - . sil ‘FEAR GLOBE FOR. WINDOW LAMP ENAMELED STEEL REFLEC TOR_ FOR OVE LAMP OPAL, REFLECTOR. 7 y a” THE HUMPHREY zy, wv OLDOOR LAMP GLOBE, <7 : S : yet bid é 1 ig ey 33 1 2) ~ Ftemised Parts of Humphrey Standard FJndoor Lamp Main valve or cock body. Arm burner. to 2% Needle point screw. Nozzle or check. Corrugated bunsens. Tapered expansion tube. Inside wire gauze. 6% Perforated cone. 7 Bunsen head shell. (No. 1 burner.) (Ee support 7% Bunsen head shell. 8 9 10 (No. 2 burner). Burner cap. Perforated burner. tip. Pilot valve body. 10% Pilot tube and tip. 11 Casing containing spring for pilot. 11% Set nut and screw. Pilot needle valve. Yoke and support. Pilot chain. 13% Pilot chain spring. 14 15 16 LZ, 18 19 Main operating chain. 2 Pilot connecting nip- ple. Plug and catch support globe. 13-inch lower pipe. Corrugated band, up- per part of globe. Fine thread coupling (center of lamp.) Crown band that sup- ports lower shade. Globe support. 9-inch clear globe. Globe crown band. 15-inch upper pipe. Nickel coupling, fine thread one end, 3% standard other end. Ceiling plate holder, two pieces. 16-inch opal ceiling plate. 17-inch opal reflector. Thumb screw to hold glass. to glass oe 2 8 6. NO | BURNER IN DETAIL 35 FItemised Parts of Cylinder and Factory Lamps are identical on Cylinder and Factory Lamp ex- cept that Cylinder Lamp parts are nickel plated. The No. 3, or special factory are burner, parts 5% and 81% will be supplied if wanted; it does not give the same results on all kinds of gas hence its not regularly furnished. 19° R'TS 1 to 15 inclusive of Standard Indoor Lamp S¥% No. 3 burner head 37 Sliding collar to slip shell. 38 gas pipe. 8% Sawed burner cap. Joy wetinutuinesiidine 28 Thumb screw (nickel collar. on cylinder, copper 50 Factory lamp globe on factory lamp). | holder. 30. Globe holder, cylin-, 51 Factory lamp venti- der lamp. | lator. 3175 Gylinder: 92. Factory lamp top. 32 6%-inch enameled | 54 Screw to hold shade. Canopy. 97 Set collar for top. 33. Bracket to hold| 59 _ Braceto hold top. shade. —— Lower pipes in cylinder lamps are 10 inches long, upper pipes 9 inches long. BoMeRoeT Geto ve Gola Lower pipes in factory . lamps are 10 inches long, 36 Malleable spider 1n upper pipes 10% inches cylinder. ong. 34 Thumb screw to hold | shade. 36 POLST DI SIG IIISTHR RISO PIONOSD AG OBIE SEE SSS ENIDN LOGI SIF) GAGS: SESSSSESSP 37 Ftemised Parts of Humphrey Outdoor Lamp Valve body. Arm to burner. Needle point screw. Nozzle. Corrugated bunsen. Tapered expansion | tube. Inside wire gauze. Bunsen head shell. Burner cap. Perforated burner tip. | Pilot adjusting screw. Pilot tube. Detachable key. Upper flat spring. SialiOast OMe ead | screw. 5-32 sslidettod, Union Nut. 9-16 steel tube, 15 | inches long. Set collar for ney. Double cast elbow. Chimney. ¥%-inch nipple. Support | steel | chim- | m NPN y Nh COI \O Flange on chimney. Lock nut for No. 15 rod. Globe support hold- er. Top of ventilator. Ventilator. Lower flat springs. ¥Y%-inch set collar. Asbestos ring. Enameled steel shade. Screw and nuts for shade. Inside shell, globe holder. Outside shell, globe holder. Thumb screw for globe holder. Ear for chimney. Brace for chimney. %-inch tube in main Dipem tow cases 32 slide rod. Wind guard plate. Iron stap to hold top. 11-inch globe. cr a 5 Lie) 8 : - ee Dae —: y Q S 2 SS MOutdoor Sign HE sign above illustrated makes an inexpensive and attractive advertisement both day and night. It fits the regular Humphrey Outdoor Lamp, fastening in the same manner and in place of the ordinary reflector shade. The bottom and back towards the store is open and when hung before a window the light is thrown inside showing the goods on display. The illumination of the sign at the same time is complete and effective. Dimensions—28 inches wide, 22 inches high, 13 inches deep. Glass panels 12% inches square. We recommend the purchase of the sign frame only without any glass as this can be easily fitted and lettered by any good sign painter. When glass is ordered it will be packed separately and with the utmost care, but we cannot guarantee safe delivery, and all shipments will be at purchaser’s risk. Si KG ot FP AML a>