Safety device for mobile work platform lift

Details Safety device for mobile work platform lift Safety device for mobile work platform lift

1975-06-16

1978-01-17

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Having transpositioning base and erecting means

182146, 187 88, E04G 118, E04G 134

Patent

active

040687376

ABSTRACT:
A mobile work platform lift assembly is illustrated wherein a platform carriage is movable up and down by power operated cables on rails carried by a tower. The tower is movable from a horizontal to a vertical position. A safety mechanism is provided for locking the platform carriage with respect to the rails when the tower is in a vertical position if for any reason the cables no longer offer support for the carriage and when the tower is in a lowered horizontal position, the same mechanism fixes the platform carriage with respect to the rails to avoid longitudinal movement of the platform carriage with respect to the tower.

REFERENCES:
patent: 262861 (1882-08-01), Voerde
patent: 324493 (1885-08-01), See
patent: 1023711 (1912-04-01), Balazs
patent: 2241275 (1941-05-01), Shinn
patent: 2757756 (1956-08-01), Warry
patent: 2804175 (1957-08-01), Phillips

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