B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 8/18 (2006.01) B60T 7/02 (2006.01) B60T 13/26 (2006.01) B61H 13/02 (2006.01) B61H 13/30 (2006.01)
Patent
CA 2288497
A manual shifting apparatus for manually shifting an automatic empty/load brake device used in conjunction with a pneumatic braking system provided on a transport vehicle which has a truck and a car body mounted on the truck through a resilient suspension system. The transport vehicle has a loaded condition and an unloaded condition. The automatic empty/load brake device has a sensor arm operable to move through a range of positions upon the application of a braking force to the transport vehicle by the pneumatic braking system. The range of positions of the sensor arm includes a first range of positions indicating the transport vehicle as being in the loaded condition and a second range of positions indicating the transport vehicle as being in the unloaded condition. The automatic empty/load brake device operates to apply a substantially reduced pneumatic braking force to the transport vehicle when the sensor arm is in the second range of positions and to apply a substantially unreduced pneumatic braking force to the transport vehicle when the sensor arm is in the first range of positions. The manual shifting apparatus is adapted for mounting on the transport vehicle adjacent the automatic empty/load brake device and includes a manual shifting member movable between a first disposition and a second disposition, in the first disposition, the manual shifting member being operable to confine the sensor member of the automatic empty/load device to the first range of positions and to exclude the sensor member of the automatic empty/load device from travel into the second range of positions and, in the second disposition, the manual shifting member being operable to permit the sensor member of the automatic empty/load device to travel into the second range of positions.
Greenaway William G.
Lewis Roger V.
Zemyan James M.
Macrae & Co.
Westinghouse Air Brake Company
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