Structural member for a structural frame

Details Structural member for a structural frame Structural member for a structural frame

1975-12-09

1977-09-20

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

With reinforcing means

29150, 52693, 52696, 52732, 72367, 113116HH, E06C 710

Patent

active

040490823

ABSTRACT:
A structural member for a structural frame comprises a substantially planar wall and two opposing irregular-shaped sidewalls integral with the planar wall. Each irregular-shaped sidewall has a corrugation. The member has two free ends where the portion adjacent each free end is flattened. The corrugated sidewalls are adapted to fold upon themselves when a force is applied to an area of the member. The flattened portion is adapted to be secured by fastening means to components of the structural frame. The width of the flattened portion is substantially the same as the nominal width of the member. The structural member has a neat appearance at its flattened portion.

REFERENCES:
patent: 800055 (1905-09-01), Ayres
patent: 910192 (1909-01-01), Grouvelle
patent: 1479262 (1924-01-01), Stegeman
patent: 1826452 (1931-10-01), Carpenter
patent: 3332197 (1967-07-01), Hinkle

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