Bridge crane hoist stop system

Details Bridge crane hoist stop system Bridge crane hoist stop system

1983-07-05

1985-04-09

Reese, Randolph

Railways

Car stops

Special track

104 98, B61K 720

Patent

active

045094314

ABSTRACT:
Rail interlocking and hoist stop apparatus for material handling systems of he type wherein a hoist travels between a movable rail and a stationary rail comprising a master stop assembly located on the movable rail and a slave stop assembly located on the stationary rail. The apparatus is manually actuated through a mechanical linkage which pushes a master pin in the master stop assembly toward the slave stop assembly. If the rails are in proper alignment, the end of the master pin is inserted into a bore in the slave assembly where it displaces a slave pin. The movement of the slave pin causes a crossover pin in the slave assembly to be partially inserted into a bore in the master assembly where it displaces a locking pin. The movement of the slave pin and the crossover pin in the slave assembly is rigidly coupled to stop pins located in the slave assembly and which are disposed in the path of the hoist when the stop system is unactuated. Likewise the movement of the locking pin in the master assembly is rigidly coupled to stop pins located in the master assembly. The movement of the various pins to the actuated position causes the stop pins of both assemblies to retract from the path of the hoist. The mechanical linkage to the master pin disconnects traversing power from the crane before the master pin is moved during actuation. Additionally, the master assembly and the slave assembly cannot accidentally be disengaged from each other if the hoist has not completely transferred from one rail to the other.

REFERENCES:
patent: 1592815 (1926-07-01), Harris
patent: 2276272 (1982-03-01), Harris
patent: 2471513 (1949-05-01), Bogle
patent: 2642814 (1953-06-01), Anjeskey
patent: 2851960 (1958-09-01), Paine
patent: 2922382 (1960-01-01), Pilipczuk
patent: 2947261 (1960-08-01), Anjeskey
patent: 3132598 (1964-05-01), Pearson

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