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
1983-06-24
1985-04-23
Taylor, Billy S.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254353, 254357, 254376, 192 94, 192 95, 192101, B66F 1900, B66F 330, G05G 112, F16D 1342
Patent
active
045125554
ABSTRACT:
An idling device is able to bring into an idling condition a lever hoist including a change gear provided on driving member threadedly engaged on a driving shaft for driving a sheave winding-up thereabout a chain or rope for a load, an operating lever rockably driven by a hand, winding-up and winding-off driving pawls engageable with teeth of the change gear and changeable in response to the purpose of hoisting or lowering the load, and a braking assembly for preventing the change gear from being driven by a gravity of the load and adapted to be clamped and released by rotative movement of the driving member relative to said driving shaft. According to the invention the idling device comprises brake clamped position holding means between the driving shaft and a manually operatable knob fitted rotatably and axially slidably on the driving shaft and brake over-released preventing means between the driving shaft and the driving member or the knob, thereby enabling the braking assembly to be changed from its clamped condition into its released condition and vice versa by simple operation and capable of preventing the braking assembly from excessively releasing.
REFERENCES:
patent: 2417492 (1947-03-01), Hinchcliffe
patent: 3138231 (1964-06-01), Lock
patent: 4236694 (1980-12-01), Kristensson
Hail III Joseph J.
Kabushiki Kaisha Kito
Taylor Billy S.
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