. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . pressures devel-oped in each cylinder. 1 am enclosing acylinder pressure table that shows thepressure for each inch of piston traveland the difference in braking power be-tween cars that have different cylindervolumes. A glance at this sheet sliouldsatisfy anybody where the trouble is thatcauses shocks in handling trains. In thepressure table I have left off the half-pounds and added a half-pound once ortwice in order to cut out the fractions. two cars would receive eleven and sevenpounds, if
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . pressures devel-oped in each cylinder. 1 am enclosing acylinder pressure table that shows thepressure for each inch of piston traveland the difference in braking power be-tween cars that have different cylindervolumes. A glance at this sheet sliouldsatisfy anybody where the trouble is thatcauses shocks in handling trains. In thepressure table I have left off the half-pounds and added a half-pound once ortwice in order to cut out the fractions. two cars would receive eleven and sevenpounds, if they had the same kind oftriple valves, if they were equipped withtriples that had the quick service featurethe pressure would be much higher, pos-sibly five or ten pounds more in these twocylinders. .At any rate, we would haveat least 1500% difference in braking[lower between the second and third the train is moving at a slow speedthe shock will be terrific. If the speed ishigh the shock will be very light and stillless if a heavy brake pipe reduction ismade. High speed is the only shock-. This train consists of 16 passenger cars, the train line volume is a little more than 18thirty-four foot cars, but the cylinder volumes are equal to 95 eight inch freight cylinders (11cylinders 18 ins. diameter, 10 cylinders 16 ins. diameter), requiring same amount of air tohandle it from the brake cylinder point of view. Assuming that the double equipment has thesame pressure in both cylinders. Those who cant understand unequalcylinder pressures and its bad effect inhandling trains have studied too much?bout the brake valve, ports, passages,valves, and have not studied the brakecylinder and the different pressures itdevelops for the same brake pipe re-duction. Can anyone with any air brake knowl-edge figure out that the engineer can bysome mysterious manipulation of thebrake valve equalize the pressures in thebrake cylinders, and this is what he mustdo in order to prevent shocks and
Size: 1942px × 1286px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
