Railway rolling stock – Special car bodies – Passenger
Patent
1994-05-26
1995-10-24
Oberleitner, Robert J.
Railway rolling stock
Special car bodies
Passenger
49 24, 49 49, B61D 1900
Patent
active
054601002
ABSTRACT:
A service bypass apparatus for isolating a door from an automatic door operator on a passenger transit type railway vehicle, and lock such door in a closed position, which includes a partially rotatable shaft having a blocking lever arm rigidly secured to the rotatable shaft which can be pivoted into a position sufficient to block the door from opening. The shaft is also provided with at least one cam adapted to operate at least one switch which will electrically and pneumatically isolate the door from the automatic door operator, and activate whatever bypasses are necessary to permit other door operators to function in their normal manner. A remote control apparatus is also provided which includes a partially rotatable cylinder with a closed-loop cable interconnecting the rotatable cylinder and the shaft, so that any partial rotation of the cylinder will cause a partial rotation of the shaft as necessary to isolate the door from the automatic door operator.
REFERENCES:
patent: 2459029 (1949-01-01), Ingres et al.
patent: 3733861 (1973-05-01), Lester
patent: 4526264 (1985-07-01), MacNamara et al.
Brillant Daniel
Gowda Padmanab L.
Morano S. Joseph
Oberleitner Robert J.
Ray, Jr. James O.
Westinghouse Air Brake Company
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