Safety extension for a fixed ladder with an adjustable mount

Details Safety extension for a fixed ladder with an adjustable mount Safety extension for a fixed ladder with an adjustable mount

1982-08-09

1985-10-15

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

With handrail or guard for ladder

182 93, 182 8, E06C 536, E06C 718

Patent

active

045468559

ABSTRACT:
A safety extension is adapted to be mounted by various adjustable means to the upper rungs of a ladder or the inside of a manhole. The safety extension comprises a rod which is moveable in a sleeve between extended and retracted positions. A counterbalance means mounted in a particular manner is optionally provided to facilitate moving the rod to the extended position with maximum ease and safety. Adjustable mounting means are provided to accommodate ladders of differing rung spacing and rung diameter.

REFERENCES:
patent: 719183 (1903-01-01), Buell
patent: 1104996 (1914-07-01), McHale
patent: 2641401 (1953-06-01), James
patent: 2756955 (1956-07-01), Chadowski
patent: 3033309 (1962-05-01), Fugere
patent: 3131928 (1964-05-01), Whipple
patent: 3372772 (1968-03-01), Singer
patent: 3455414 (1969-07-01), Higgins
patent: 3598200 (1971-08-01), Thompson
patent: 3762500 (1973-10-01), Sarno
patent: 4193475 (1980-03-01), Sweet et al.

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