. Locomotive engineering : a practical journal of railway motive power and rolling stock . car I found thatthe answers were divided between twocauses, viz.: Because he had a shortertrain at one time than he did at the otherand Because one train may have cars oflonger piston travel than another train. Now, it will be clear to you and all en-gineers that these two replies are true as made three reductions of 5 pounds, oneafter the other, which makes a total ap-plication of 15 pounds, and puts aboutthree times this pressure, or 45 pounds,in the brake cylinders as he comes to astop. He must now re
. Locomotive engineering : a practical journal of railway motive power and rolling stock . car I found thatthe answers were divided between twocauses, viz.: Because he had a shortertrain at one time than he did at the otherand Because one train may have cars oflonger piston travel than another train. Now, it will be clear to you and all en-gineers that these two replies are true as made three reductions of 5 pounds, oneafter the other, which makes a total ap-plication of 15 pounds, and puts aboutthree times this pressure, or 45 pounds,in the brake cylinders as he comes to astop. He must now release several sec-onds before the train stops in order to getmost all of this 45 pounds out of the brakecylinders, or else there will be a reactionof the truck springs on each car, causinga disagreeable lurch. But suppose at the next stop he makes amuch lighter application or his first ap-plication is going to stop the train tooquickly, and he then releases and appliessix or eight pounds on his second applica-tion. Now, he must hold the brakes onuntil the train comes almost to a stand-. PORTABLE AIR-BRAKE TESTING APPARATUS USED ON DULUTH, MISSABE & NORTHERN RAILWAY AT PROCTOR, MINN. regards handling different trains, butneither of them applies to the case inquestion. We all know that any exper-ienced engineer in making his first stopgets the feel of his train as to its stop-ping power and how quick it releases, andgages his after stops thereby. But thequestion to bs answered is: Why willthe brakes on the same train let go thewheels quicker at one time than at an-other when we are shown that the triplesmove just as quick or a little quicker fora heavy (proper) reduction than for alight one. The length of time it takes thesmall port in the triple valve to air, or most of it, from the brake cylin-der depends upon how many pounds pres-sure there is in the brake cylinder at thetime the release is made. This depends^pon the strength of the application. For example, suppos
Size: 1521px × 1642px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
