Ladder

Details Ladder Ladder

1977-08-31

1980-05-13

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Convertible

Ladder

182162, 182189, E06C 1383

Patent

active

042024285

ABSTRACT:
A foldable ladder is disclosed having a central and two outer parallel support members or "stiles" and a plurality of steps connected between the central and the outer stiles. Each step is arranged to fold between an erected position, in which it extends generally at right angles to the longitudinal direction of the stile to which it is connected, and a storage position in which the step lies generally parallel to the central stile with the outer stile to which it is connected extending parallel to and in close juxtaposition with the central stile. Engaging means are provided adjacent the upper end of the central stile for holding cooperating engaging means of a supporting member such as another ladder section (forming an extension ladder) or a prop extending to ground (forming a step ladder).

REFERENCES:
patent: 19107 (1858-01-01), Stone
patent: 1283424 (1918-10-01), Poetz
patent: 1606445 (1926-11-01), Pirsch
patent: 3978944 (1976-09-01), Hickman
patent: 4016954 (1977-04-01), Hickman

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