Catalog of stereopticons, motion picture machines, projection apparatus : manufactured and imported by the McIntosh Stereopticon Company . er isprotected from injury when not in use by the metal cap shown in thecut. In this lamp the diMicate heating coil commonly used under theglower to start the flow of current is dispensed with as being asource of annoyance in frequently burning out and an unnecessaryexpense. A neat special alcohol torch for heating the glower isfurnished with the lamp. The glowers forming part of the burners are necessarily delicateand we will not be responsible for damage
Catalog of stereopticons, motion picture machines, projection apparatus : manufactured and imported by the McIntosh Stereopticon Company . er isprotected from injury when not in use by the metal cap shown in thecut. In this lamp the diMicate heating coil commonly used under theglower to start the flow of current is dispensed with as being asource of annoyance in frequently burning out and an unnecessaryexpense. A neat special alcohol torch for heating the glower isfurnished with the lamp. The glowers forming part of the burners are necessarily delicateand we will not be responsible for damage in shipment or use. McINTOSH STEREOPTICON CO., CHICAGO, , V. S. A. 55 THE INCANDESCENTELECTRIC LAMP. The recent introduction ofthe nitrogen filled ^lazda lampas described on page 8 haspractically eliminated all otherforms of incandescent lampsfrom the field of projectionapparatus. We ofifer now only twoforms of projection incandes-cent lamps which are describedand priced below. Other typest)f concentrated filament, in-candescent lamps will be su])-plied if desired, and special in-formation about them will begiven upon PRICE, 250-\vatt. plain lamp 2S0-watt, lamp with silvered back. 500-watt, plain lamp 500-watt, lamp with silvered back. .$ , , The 250-watt lamp with the silvered back can be usedin any of our lanterns and it is safe to say it can be fittedto any lantern on the market. It will produce a good pictureup to 10 ft. square at any distance not more than 40 ft. from!he .?creen. For use in connection with it, we recommend the halfsize or 2% diameter objective lens, rather than the yx sizewhich is l^/i^ diameter. With the 500-watt lamp, which can be fitted to most ofour lanterns, but which is much larger than the 250-wattlamp, a 10 ft. picture can be projected up to a distance of 50ft. from the screen. For use at a reasonable distance from the screen, theselamps are very desirable as they require no attention wdiat-ever in operation; simpl
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Keywords: ., bookcentury1900, bookdecade1910, bookidgricatalogof, bookyear1915
