Ladder leveling and stabilizing extension and foot

Details Ladder leveling and stabilizing extension and foot Ladder leveling and stabilizing extension and foot

1991-01-29

1993-06-29

Chotkowski, Karen J.

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

Terminal foot or shoe

182111, E06C 700

Patent

active

052225755

ABSTRACT:
For enhancing the safety of a ladder, adjustable extensions (14) can be attached to the bottom ends of the side rails of the ladder so as effectively to adjust the lengths of such rails so that the ladder will not lean to either side, regardless of any difference in heights of the ground or support areas under such rails. Also coupling cables (66) couple the ladder to the wall of the building against which the ladder leans. The coupling cables connect the midpart of the ladder to a horizontal wall cable (64) which is attached along and parallel to the wall of the building. The top of the ladder is stabilized against rolling to either the left or right and so that it can be positioned stably against irregular supports, such as windows, eaves, pitched roofs, pipes, etc., by means of stabilizing bars (74) connected to its top and suitably shaped to mate with the irregular supports, and by extension arms (82) which project out from the top of the ladder. Hand holds (88) are attached to the extension arms.

REFERENCES:
patent: 1179391 (1916-04-01), Bachman
patent: 2152895 (1939-04-01), Longtin
patent: 2177677 (1939-10-01), Staben
patent: 2936849 (1960-05-01), Larson
patent: 3414082 (1968-12-01), Gilland
patent: 3456757 (1969-07-01), Sain
patent: 4423797 (1984-01-01), Batten
patent: 4671383 (1987-06-01), Huang
patent: 4744441 (1988-05-01), Sandstrom

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