Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Side-by-side terminus shafts; e.g. – truss
Patent
1976-05-25
1977-11-29
Murtagh, John E.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Side-by-side terminus shafts; e.g., truss
E04C 304
Patent
active
040599370
ABSTRACT:
A steel girder of the type having a cross-section in the shape of a rectangle comprises four parallel L-beams situated at respective corners of the rectangle, strut elements disposed opposite one another in pairs and parallel to the longer sides of the rectangle, and connecting elements each having a flat, substantially H-shaped web portion and two flanges projecting at right angles from the outer edges of the web portion, the web portions sloping at a uniform angle to the L-beams toward the shorter sides of the rectangle.
REFERENCES:
patent: 2027711 (1936-01-01), Sutton
patent: 3735544 (1973-05-01), Longlnotti
Murtagh John E.
U. Scharer Sohne AG (USM)
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