Brake Tests
År: 1913
Forlag: Pensylvania Railroad Company
Sted: Altoona, Penna.
Sider: 401
A Report Of A Series Of Road Tests Of Brakes On Passanger Equipment Cars Made At Absecon, New Jersey, In 1913
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120
CHAPTER IV.
BRAKE RIGGING.
Existing Type of Rigging on Cars.
256. The brake which has been standard on P-70 cars since they
were first built in 1907, is of the single shoe type without brake beams,
the brake heads being suspended from the truck levers and hangers
as shown in Fig. 67.
257. The brake heads are spaced by tie rods to give the o
bearing and to offset the tendency of the shoes to run off the wheel.
^9- 671 PARE
BRAKE RIGGING, STANDARDSINGLE SHOEB
The standard rigging used on P-7
258. The nominal brakin’ power of 80 per cent, in service appli-
cation and 113 per cent, in emergency ith toratio o7 to 1 lora
and a truck lever ratio of two to one
car i000ietests the brake rigging on the trucks of
.2FSto the truck side frame. With the anchorage
resisting force, 5 truck tending to tilt them more or less
in a turning moment on the of t’his tilting has been to render the
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eliminated the cause of the tilting mentioned above.