Hoist apparatus

Details Hoist apparatus Hoist apparatus

1974-06-28

1976-03-16

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

187 20, 254191, B66D 176

Patent

active

039441857

ABSTRACT:
The hoist includes a rotatably mounted drive sheave having a continuous circumferential groove within which the load cable is received. A flexible bandlike member extends about the cable on the sheave, and has both ends connected via linkages to an eccentrically mounted bell crank on an auxiliary sheave. One cable end, after passing around the drive sheave, engages a portion of the auxiliary sheave circumference, translating the auxiliary sheave eccentrically and pulling both ends of the bandlike member when the cable is loaded.

REFERENCES:
patent: 3100626 (1963-08-01), Good
patent: 3231240 (1966-01-01), Naito
patent: 3520515 (1970-07-01), Pomagaski et al.
patent: 3524626 (1970-08-01), Pomagalski et al.
patent: 3721426 (1973-03-01), Kaufer
patent: 3729173 (1973-04-01), Levardon

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