. Revised and enlarged ed. of the science of railways . danger of in-jury to the trainmen by so doing. Cutting Out Brakes.—The brakes on the driv-ers and tender should, unless defective, alwaysbe used lautomatically at every application of thetrain brake, except upon grades that may be par-ticularly designated. When necessary to cut out either the driver orthe tender brake because of any defect, it sliouldbe done ])y turning the handle of the four-waycock, in the triple valve, down to a position mid-way between horizontal and vertical, leaving thebleed cock open. Double Headers.—When two or mo
. Revised and enlarged ed. of the science of railways . danger of in-jury to the trainmen by so doing. Cutting Out Brakes.—The brakes on the driv-ers and tender should, unless defective, alwaysbe used lautomatically at every application of thetrain brake, except upon grades that may be par-ticularly designated. When necessary to cut out either the driver orthe tender brake because of any defect, it sliouldbe done ])y turning the handle of the four-waycock, in the triple valve, down to a position mid-way between horizontal and vertical, leaving thebleed cock open. Double Headers.—When two or more enginesare coupled in the same train, the brakes mustbe connected to, and operated from, the head engine. For this pur-pose a cock is placedin the train pipe justbelow the engineersvalve. The engineerof each engine, savethe head one, shouldclose this cock andplace the handle ofthe engineers valve in posi-tion two. Then he will starthis air pump and let it run asthough he were intending touse the brake. This is for thepurpose of maintaining air. Angle Cock, opeu. pressure on nis and enabling him to THE AIR BRAKE. 321 assume charge of the train brakes should occa-sion require it. Extra Hose.—An extra air-l)rake hose and cou-pling should be carried on each engine in order tomake repairs in case hose bursts. Upon engineshaving the air signal, an extra signal hose andcoupling should also be carried for like purpose. Sliding Wheels.—To avoid the sliding of wheels(and consequent loss of two-thirds of the retard-ing force, and the damage to the wheels as well\engineers should use sand freely when the condi-tion of the rail is doubtful. The sand should beapplied to the rail ])efore tlie brake is operated,and should be shut oft* only after the brake hasbeen released. GENERAL INSTRUCTIONS TO TRAINMEN. Makinr/ Vp Trains and Testing Brakes.—Whenan engine has been coupled to a train, or whentAvo sections have been brought together, thebrake couplings should be united. The cocks
Size: 1472px × 1697px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1800, bookidsciencerailw, bookyear1800
