Hollow boom construction

Details Hollow boom construction Hollow boom construction

1977-10-21

1979-10-23

Braun, Leslie

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Tilts relative to base

52720, 52731, D12 54, E04H 1234, E04C 330

Patent

active

041715985

ABSTRACT:
A hollow rectangular boom formed with four corner sections of identical cross section and plates interconnecting the corner sections is disclosed herein. Each of the corner sections is identical and is generally L-shaped in cross section with first and second legs each having a recess with adjacent pairs of corner sections being interconnected by flat plates received into the respective recesses and welded therein.

REFERENCES:
patent: 1656810 (1928-01-01), Arnstein
patent: 2092472 (1937-09-01), Rafter
patent: 2098676 (1937-11-01), Rafter
patent: 2988182 (1961-06-01), Campbell
patent: 3103262 (1963-09-01), Handley
patent: 3104454 (1963-09-01), Handley et al.
patent: 3256671 (1966-06-01), Handley
patent: 3300060 (1967-01-01), Lado
patent: 3345794 (1967-10-01), Proud
patent: 3740917 (1973-06-01), Wong
patent: 3874136 (1975-04-01), Michel
patent: 3972571 (1976-08-01), Benkowski
patent: 4003168 (1977-01-01), Brady
patent: 4016688 (1977-04-01), Tiffin et al.

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