Line travelling skips

Details Line travelling skips Line travelling skips

1978-02-21

1979-08-07

Husar, Francis S.

Fire escape, ladder, or scaffold

Horizontal traversing - actuation, control, or response

Occupant actuation or control

182 36, 182144, 182150, 182193, 104 95, 104112, 104122, 105148, 105154, B61B 706, E01B 2516, E04G 310, E04G 316

Patent

active

041634802

ABSTRACT:
A carriage has pulleys adjacent opposite ends thereof for riding on a pair of line cables which have obstructions thereon, such as hangers and spacers. The carriage has brakes associated therewith for engaging the line cables. These brakes are such that they permit the carriage to move in one direction but automatically grip the line cables when the carriage moves in the opposite direction. These brakes are releasable to allow the carriage to be moved in either direction. Lifting apparatus is provided for each end of the carriage in the form of hooks that can be placed on the line cables and lifter lines extending between the hooks and the carriage. The lifter cables are connected to a foot pedal in the carriage which can be manipulated to transfer the weight of the adjacent end of the carriage through the hooks to the line cables thereby allowing the pulleys at that end of the carriage to be lifted off the line cables and shifted around an obstruction thereon.

REFERENCES:
patent: 3702124 (1972-11-01), Highland

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