Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1993-06-09
1994-06-28
Matecki, Katherine
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254285, 254321, B66D 154
Patent
active
053240073
ABSTRACT:
A load-hoisting system comprising a motor and gear box unit having the parallel outlet gears. Each outlet gear drives a hoisting device connected to the load by a cable, such a device comprising a toothed disk meshing with one of the two outlet gears, the toothed disk driving a winch drum via a friction clutch comprising an intermediate clutch disk, the cable being attached to and wound on the drum, the intermediate disk including retaining catches preventing it from rotating in a direction corresponding to lowering the load, the drum being fixed to a central shaft whose rotation in the direction corresponding to lowering the load ensures that the clutch is engaged. The central shaft is synchronized in rotation with the central shaft of the other hoisting device by means of a plate coupling and a coupling disk provided with tenons or grooves that are orthogonal, the two central shafts being supported by a fixed frame.
REFERENCES:
patent: 1609421 (1926-12-01), Norris
patent: 2984455 (1961-05-01), Fischer
patent: 4214664 (1980-07-01), Polen
patent: 4236694 (1980-12-01), Kristensson
patent: 4489919 (1984-12-01), Ostrobrod
patent: 4851980 (1987-07-01), McWilliams
ACB
Matecki Katherine
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