Hinged assembly for air brake valve test fixture
AssigneeWestinghouse Air Brake Company
InventorsJeffrey D. Reid, W. Thomas Digweed
Life of this patent
Estimating the term…
Abstract
A hinge assembly for a manual or automatic air brake valve test fixture that includes a secondary test plate to which a valve device to be tested is mounted from a front load position and then rotated to its usual side location for clamping to the primary test plate, thereby relieving the tester of physical strain encountered heretofore in mounting the valve in a side load position. The hinge assembly is spring-loaded to obtain even, face-to-face engagement of the mating surfaces of the primary and secondary test plates and thereby assure the integrity of the pressure seal therebetween.
Claims12
For use with an air brake valve test rack, a test fixture comprising:
- a) a test stand including a valve mounting manifold to which fluid under pressure is connected;
- b) a primary test plate affixed at one face thereof to said valve mounting manifold, said one face having a plurality of inlet ports to certain ones of which fluid under pressure is connected from said manifold and another face having a plurality of outlet ports to certain ones of which fluid under pressure is connected from said certain ones of said inlet ports;
- c) a secondary test plate having a plurality of inlet ports in one face thereof corresponding to said plurality of outlet ports in said other face of said primary test plate, and a plurality of outlet ports in another face of said secondary test plate on which a valve device may be mounted for testing;
- and
- d) means for pivotally supporting said secondary test plate so as to provide rotation thereof between a test position in which said one face of said secondary test plate is engaged with said other face of said primary test plate and a load/unload position in which said one face of said secondary test plate is disengaged from said other face of said primary test plate.
Dependencies are inferred from the claim text.