Frame structure, especially for a portable bridge

Details Frame structure, especially for a portable bridge Frame structure, especially for a portable bridge

1976-09-08

1978-02-28

Byers, Nile C.

Bridges

Truss

Details

F01D 1900

Patent

active

040757277

ABSTRACT:
A frame structure, especially for a portable bridge, which comprises at least one pair of struts to be interconnected and equipped with coupling members having such a profile that the coupling members when positively engaging each other permit a pivoting in which the coupling members are able to convey forces in all directions between the two struts. A pivoting back of one strut relative to the other strut from the coupling position is prevented by additional coupling elements.

REFERENCES:
patent: 1231365 (1917-06-01), Inglis
patent: 2083226 (1937-06-01), Dornier
patent: 2347879 (1944-05-01), Brunton
patent: 2754064 (1956-07-01), Voltz
patent: 3103025 (1963-09-01), Gassner
patent: 3181187 (1965-05-01), Kahn
patent: 3257764 (1966-06-01), Cripe
patent: 3273299 (1966-09-01), Hartung
patent: 3736710 (1973-06-01), Sterner
patent: 3753324 (1973-08-01), Puccio
patent: 3886613 (1975-06-01), Busch

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