File:A textbook on the locomotive and the air brake (1901) (14755738251).jpg

Identifier: textbookonlocomo02inte (find matches)
Title: A textbook on the locomotive and the air brake
Year: 1901 (1900s)
Authors: International Correspondence Schools
Subjects: Locomotives Locomotive boilers Locomotives Railroad cars
Publisher: Scranton, Pa., International textbook co
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Northeastern University, Snell Library

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design of the lamp body and parts is similar tothat of the lamp shown in Fig. 10. 15. Fig. 13 is an illustration of an Argand bracket lamp, part of the bowl A being shown broken away, so as todisclose the chimney, burner, etc. in the interior of the lamp.F is the thumbscrew by which gas is turned on to the lamp;d is the gas tube conveying the gas to the burner e; g ib thechimney; r is the globe ring or bezel; a is the asbestos wick tomake the bowl fit air-tight against the ring r; r is the globe-retaining ring. ACTION OF THE LAMPS. 16. The special features of the lamps just described arethe closed globe A, the white porcelain reflectors g and h(placed in the upper part of the globe above the flames, withan annular opening between them), and the peculiar manner inwhich the air supply to the flame is carried on. All center lamps (various forms of which are shown inFigs. 10, 11, and 12) are so arranged that the incoming air isheated considerably before coming in contact with the flame, I
Text Appearing After Image:
Fig. 14. 16 CAR LIGHTING. § 12 the result being increased whiteness and steadiness of light.It will also be noticed in all the lamps here shown, that thedesign is such as to reflect some of the light upwards throughthe mica chimney i and dome B, and so illuminate the roof ofthe car. As seen in Fig. 10, air is admitted through open-ings in the chimney J; passing downwards, it comes in contactwith the side of flue j and so becomes heated. It then passesinto the space between the dome B and the mica chimney i,where it is heated still more, the diaphragm P deflecting the airtoward the chimney i, so as to be well heated. It passes fromthe space between i and h out of the holes in the outer edgeof h and so into the bowl A. The tortuous course the airthus takes serves to protect the flame from an) drafts the lampmay encounter. The gases of combustion thrown off by theflames pass through the space between g and i, up through theflue j, and out of the crown. The arrows in Fig. 11 showclearly

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