Brakes – Vehicle – Railway
Patent
1976-04-28
1977-11-29
Reger, Duane A.
Brakes
Vehicle
Railway
188107, B61H 1324
Patent
active
040601528
ABSTRACT:
Rail car brake rigging of the type for use in a two-axle, four-wheel rail car truck is disclosed which embodies a double-acting brake cylinder and slack adjustor disposed transversely between the side frames of the car truck and connected to parallel brake beams disposed on opposite sides of the truck bolster, by a pair of spaced bell crank levers pivotably mounted on one of the beams, one arm of each bell crank lever being pivotably connected to the brake cylinder or its push rod, the other arm of each bell crank lever being pivotably connected to one of a pair of push rods joined to the other beam. The brake cylinder includes a parking brake actuating lever mounted to the housing thereof for manually, mechanically stroking the brake cylinder in the same manner as during fluid pressure actuated brake application, without inducing undesirable beam loadings and yet ensuring uniform application of the brakes at all wheels. The unique geometry of the invention permits the use of beams having small diameter tubular central sections to which cast brake heads may be easily attached by a circumferential weld. Spherical joints are disclosed for connecting each push rod at its opposite ends to a bell crank on one beam and to the remaining beam.
REFERENCES:
patent: 3378108 (1968-04-01), McClure et al.
patent: 3744596 (1973-07-01), Sander
patent: 3780837 (1973-12-01), Haydu
Bogenschutz Thomas M.
Engle Thomas H.
McEathron Eugene D.
General Signal Corporation
Reger Duane A.
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