Truss-like metal member

Details Truss-like metal member Truss-like metal member

1971-07-13

1976-06-15

Abbott, Frank L.

Metal working

Expanded metal making

52635, E04B 118

Patent

active

039627632

ABSTRACT:
The invention relates to the method of forming a truss or truss-like member which has spaced chords interconnected by inclined struts.
The struts are formed by firstly forming a member of constant cross-sectional shape having a web joining the two chords and containing at least one thickened or stiffening portion extending for its length, forming parallel rows of slots with a stiffening portion between each row, the slots of the rows being staggered and overlapping one another, and the chords being moved apart so as to incline the struts formed by those lengths of the stiffening portion which lie between the overlapping portions of the slots, and also to elongate them.

REFERENCES:
patent: 885158 (1908-04-01), Kahn
patent: 1927442 (1933-09-01), Laufle
patent: 2052024 (1936-08-01), Hahn
patent: 2201504 (1940-05-01), Ruppel
patent: 2913078 (1959-11-01), Kaiser
patent: 3034197 (1962-05-01), Watawabe
patent: 3099335 (1963-07-01), Sklar
patent: 3607411 (1971-09-01), Brownrigg

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