Railway truck frame mounted load weigh valve
AssigneeBuckeye Steel Castings Company
InventorRoger F. Sanzo
Life of this patent
Estimating the term…
Abstract
A load weigh valve assembly for a railway car is provided. The load weigh valve assembly is mounted to the truck frame on primary sprung trucks to enable actuation of the load weigh valve pivot arm. The load weigh valve assembly is also mounted to the truck frame so as to eliminate the problems associated with oscillating and sliding motion at the load weigh valve pivot arm. In addition, the undesirable valve actuation that occurs due to car roll is eliminated.
Claims21
A railway car including a railway car body and railway car truck, the railway car truck having a pair of spaced wheel sets, each wheel set having a pair of transversely spaced wheels, the railway car truck comprising:
- a truck frame,
- a load weigh valve assembly mounted to the truck frame, the load weigh valve assembly further comprising a load weigh valve connected to the truck frame, a load weigh valve pivot arm operatively connected to the load weigh valve, the load weigh valve pivot arm operatively in contact with a contact surface which is mounted to a load sensor interface bracket,
- whereby the load weigh valve assembly provides a constant changeover point between a low pressure brake setting and a high pressure brake setting during railway car body roll.
A railway car including a railway car body and railway car truck, the railway car truck having a pair of spaced wheel sets, each wheel set having a pair of transversely spaced wheels, the railway car truck comprising:
- a truck frame,
- a load weigh valve assembly mounted to the truck frame, the load weigh valve assembly further comprising a load weigh valve connected to the truck frame, a load weigh valve pivot arm operatively connected to the load weigh valve, the load weigh valve pivot arm operatively in contact with a contact surface which is mounted to a load sensor interface bracket, the contact surface is contoured to compensate for parasitic vertical movement of the load weigh valve pivot arm caused by worn components.
A railway car having a primary suspension, the railway car comprising:
- a truck frame,
- a load weigh valve assembly mounted to the truck frame, the load weigh valve assembly further comprising a load weigh valve connected to the truck frame, a weigh valve pivot arm operatively connected to the load weigh valve, a dead lever connecting link connected to the truck frame, a contoured contact plate attached to a load sensor arm interface bracket, the load sensor interface bracket connected to a brake beam,
- whereby the contoured contact plate compensates for parasitic vertical movement of the weigh valve pivot arm caused by worn components.
A railway car truck comprising:
- a truck frame,
- a load weigh valve assembly mounted to the truck frame, the load weigh valve assembly further comprising a load weigh valve connected to the truck frame, a weigh valve pivot arm operatively connected to the load weigh valve, a dead lever connecting link connected to the truck frame, a contoured contact plate attached to a load sensor arm interface bracket, the load sensor interface bracket is connected to a brake beam and a brake beam dead lever,
- whereby the load weigh valve assembly provides a constant changeover point between a low pressure brake setting and a high pressure brake setting during railway car truck swivel.
A railway car including a railway car body and railway car truck, the railway car truck having a pair of spaced wheel sets, each wheel set having a pair of transversely spaced wheels, the railway car truck comprising:
- a truck frame,
- a load weigh valve assembly mounted to the truck frame, the load weigh valve assembly further comprising a load weigh valve connected to the truck frame, a load weigh valve pivot arm operatively connected to the load weigh valve, the load weigh valve pivot arm operatively in contact with a contact surface which is mounted to a load sensor interface bracket, the load sensor arm interface bracket is mounted to a brake beam,
- whereby the load weigh valve assembly provides a constant changeover point between a low pressure brake setting and a high pressure brake setting during railway car body roll.
Dependencies are inferred from the claim text.