File:Railway master mechanic (microform) (1895) (14572284219).jpg

Identifier: railwaymastermec28newy (find matches)
Title: Railway master mechanic (microform)
Year: 1895 (1890s)
Authors:
Subjects: Railroads Railroads
Publisher: New York : (Simmons-Boardman Pub. Corp.)
Contributing Library: MIT Libraries
Digitizing Sponsor: Boston Library Consortium Member Libraries

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dmethod of hinging the fold to the door made it too heavy forone man to handle. This difficulty is overcome by makingthe doors in two pieces and independent of each other, butboth on the same rod, so that one man can readily handlethem. The increased height of grain doors necessitated asimple and inexpensive release in the door, to relieve thepressure before unloading. This requirement is met by asafe and practical release, which is cheaply attached to anydoor; is even stronger than the balance of the door, andcan be sealed if necessary. The rods on which both doorsoperate are put in a rabbet, so that the door fixtures takeup no room in the body of the car. The doors when notin use are up under the roof, where they serve as a px*o-tection in a place where the roof is most liable to injury. The McGuire-Cummings Manufacturing Company, Sanga-mon, Morgan and Kinzie streets, Chicago, 111., the manufac-turers of this door, guarantee it for five years. July, 1904. RAILWAY MASTER MECHANIC 277
Text Appearing After Image:
McGUIRE-CUMMINGS Gl<AIN DOOR. 278 RAILWAY MASTER MECHANIC July, 1904. Vapor System of Car Heating The vapor system of heating passenger cars by steam ope-l-ates automatically and requires no pressure on the radiat-ing pipes. All radiating pipes used in this system open freelyto the atmosphere. As no traps or drip valves are required,the inconvenience resulting from the freezing of traps ordrips is positively eliminated. A valuable feature claimedby the originators of this system . is that every car in thetrain is heated exactly the same, regardless of variation oftrain pipe pressure, so that there is no overheating and amild, agreeable heat exists instead of an intense or overheatedcondition. The system is said to put passenger car heatingon a par with modern and up-to-date methods used in heatinglarge buildings. The opt-ration of the system is evident from the accom-panying line drawing illustrating the principal parts. Anexpansive diaphragm is used to open and close the supplyval

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