Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Pawl actuated
Patent
1972-12-21
1976-07-27
Tollberg, Stanley H.
Implements or apparatus for applying pushing or pulling force
Step-by-step traveling bar
Pawl actuated
B66d 148
Patent
active
039715450
ABSTRACT:
A system for maintaining a lineal element, such as load transfer cables, at a constant tension to enable the transfer of a load, such as parcels, cargo, or the like, from one station to another, even though one or both stations are relatively moveable. Provision is made to maintain constant tension on winch lines, to enable the transfer of loads between two fixed stations, between a ship at sea and a stationary loading dock, or between two ships at sea, which are relatively moveable, by utilizing a continuously rotating, slipping clutch, which clutch is continuously cooled by circulating a fluid media therethrough to maintain the friction elements therein at a temperature below which the friction elements would become damaged.
One form of the dynamic brake mechanism is driven continuously, while operating, by a power means, such as a hydraulic motor which drives through a worm gear to rotate the body of the dynamic brake to present a new "live", moving surface for the friction element to engage, which normally can be run in either direction; however, in some instances it is to be rotated counter to the normal rotation of the element being braked.
REFERENCES:
patent: 2966221 (1960-12-01), Kinney
patent: 3497787 (1970-02-01), Fuelster et al.
patent: 3653636 (1972-04-01), Burrell
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