Combination step, stair well and extension ladders

Details Combination step, stair well and extension ladders Combination step, stair well and extension ladders

1978-07-03

1979-05-22

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Convertible

Ladder

182124, 182166, E06C 118, E06C 714

Patent

active

041554221

ABSTRACT:
Combination step, stair well and extension ladders are characterized by a single bracket member by which a bucket rack and the top rear section are pivoted to the front step section, the bucket rack is supported by telescoping channel members, spring-biased hooks are pivoted on the top rear section to make locking engagement with the top step of the ladder's front step section and snap pin units are carried by brackets on the lower rear section to interlock with holes in the sides of the top rear section to adjust the length of the ladder when it is in the extension ladder configuration.

REFERENCES:
patent: 2899008 (1959-08-01), Larson
patent: 3009535 (1961-11-01), Larson
patent: 3269485 (1966-08-01), Larson

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