Measuring and testing – Brake testing – Roller or belt wheel support
Patent
1994-12-29
1996-04-02
Chilcot, Richard
Measuring and testing
Brake testing
Roller or belt wheel support
73 39, 7386386, B60T 1722
Patent
active
055030114
ABSTRACT:
A test connector for connecting an air brake test device to access ports provided on an air brake control valve device where such access ports are normally closed by check valves is disclosed. In one embodiment, a plurality of stem operators project into the access ports without opening the check valves therein when the test connector is installed in position on the control valve device. A handle is provided to effect rotation of an eccentric shaft on which the stem operators are connected to unseat the check valves and thereby access air at the respective access ports when it is desired to initiate testing following installation of the test connector. In an alternate embodiment, a plurality of test probes pivotally mounted on the test connector body enter the access ports and unseat the check valves in the course of installing the test connector in position on the control valve. In both embodiments, the stem operators/test probes are self-aligning to facilitate installation of the test connector.
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Hart James E.
Johnston Gregory L.
Scott Daniel G.
Sich Gary M.
Chilcot Richard
Dombroske George M.
Falce Gary J.
Westinghouse Air Brake Company
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