Ladder emergency braking system

Details Ladder emergency braking system Ladder emergency braking system

1994-11-25

1996-03-19

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

248508, E06C 536

Patent

active

054996910

ABSTRACT:
A slip-on self-locking automatically articulating emergency brakeing system for ladders is described.
Consisting of a metal plate as the complete raw material required for the manufacture of a set of two brakes, one brake designed to fit the left hand side rail, and one brake designed to fit the right hand side rail of said ladder.
A plurality of protrusions diverge from the body (22) of each brake, including a jug handle type lug (20) which most nearly encircles a rung of said ladder, a slide plate (12) which engages the rear portion of said ladder rail.
A slide plate clasp (14) to prevent lateral movement of the device, and structuraly induced incisor column (10) and incisor (8) for use as a perpendicular brakeing mechanism due to right angle reduction.

REFERENCES:
patent: 2145619 (1938-01-01), Brown
patent: 3792756 (1974-06-01), Kelly
patent: 3870428 (1975-03-01), Jackson
patent: 4765439 (1988-03-01), Kresmery
patent: 4974699 (1990-12-01), Boring
patent: 4995476 (1991-04-01), Buck
patent: 5054579 (1991-10-01), Moson

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