Convertible trestle leg assembly

Details Convertible trestle leg assembly Convertible trestle leg assembly

1980-09-15

1981-11-03

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Self-sustaining

Scaffold horse

182 20, 182226, 182153, 269 88, 269296, F16M 1100

Patent

active

042980968

ABSTRACT:
A trestle leg assembly comprising a foldable pair of legs which may be opened out and locked into A-frame configuration. Angles are bolted to horizontal plates welded to the tops of the legs, and the bolt holes are located so that when the upright legs of the angles are positioned back to back, they clamp the sides of a standard 2.times.4, and when they are placed face to face they grip the edges of a 2.times.4 lying flat.

REFERENCES:
patent: 787922 (1905-04-01), Hoxie
patent: 2136420 (1938-11-01), Edwards
patent: 2198956 (1940-04-01), Thielepape
patent: 2317444 (1943-04-01), Dalton
patent: 2478828 (1949-08-01), Larson
patent: 2644726 (1953-07-01), Miller
patent: 2814099 (1957-11-01), Knittel
patent: 3446312 (1969-05-01), Jones

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