Unitary hoist drum for hoist ropes and an electric cable

Details Unitary hoist drum for hoist ropes and an electric cable Unitary hoist drum for hoist ropes and an electric cable

1991-07-18

1994-01-25

Jillions, John M.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

187 27, 191 122R, B66B 1104, H02G 1100, B66D 114

Patent

active

052808807

ABSTRACT:
A hoisting system is disclosed which includes a hoisting drum around which two hoisting ropes are wound in respective hoist rope grooves. The hoisting ropes are secured to the hoisting drum at one end, and extend down to a suspended device, such as an elevator, or a crane hook. The hoisting drum also includes a cable groove, which is located between the two hoist rope grooves. An electrical cable is secured at one end to the hoist drum, is wound around the hoist drum in the cable groove, and extends down to the suspended device. A slip-ring assembly establishes an electrical connection to the cable, so as to permit power to be supplied to the suspended device.

REFERENCES:
patent: 322515 (1885-07-01), Young
patent: 873781 (1907-12-01), Pirtle
patent: 1476941 (1923-12-01), Young et al.
patent: 3430179 (1969-02-01), Shoji
patent: 4008791 (1977-02-01), Shafii-Kahany et al.

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