Lifting apparatus

Details Lifting apparatus Lifting apparatus

1975-12-19

1977-05-10

Smith, Al Lawrence

Implements or apparatus for applying pushing or pulling force

Rack and pinion

74422, 74460, B66F 302

Patent

active

040224295

ABSTRACT:
A lifting apparatus wherein a cone rack mechanism having cone pieces interlocked to driving gears is driven by such driving gears, which are connected and controlled by a special friction clutch mechanism, a latch mechanism, and a centrifugal brake, for continuing the lifting and lowering of a body, such as a water gate.

REFERENCES:
patent: 2986954 (1961-06-01), Werner
patent: 3288435 (1966-11-01), Starkey
patent: 3351321 (1967-11-01), Grams et al.
patent: 3543598 (1970-12-01), Langenberger
patent: 3770070 (1973-11-01), Smith

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