Bridging apparatus and method

Details Bridging apparatus and method Bridging apparatus and method

1986-11-10

1988-02-09

Novosad, Stephen J.

Bridges

Transportable

14 17, 52227, E01D 1512

Patent

active

047233338

ABSTRACT:
A bridge apparatus has a relatively light lower beam portion and a relatively heavy upper beam portion. The beam portions are generally equal in length. The lower beam portion is initially placed across the point to be bridged and has sufficient strength to support itself and to support the upper beam portion as the upper beam portion is moved across the lower beam portion. The upper beam portion is placed on top of the lower beam portion and fasteners are used for drawing together the two beam portions to close any gas therebetween and to rigidly connect the beam portions together so the beam portions jointly contribute to bearing the load.

REFERENCES:
patent: 2878498 (1959-03-01), Gollnow
patent: 3066771 (1962-12-01), Wolchuk
patent: 4120065 (1978-10-01), Sivachenko et al.
patent: 4411036 (1983-10-01), Fitzgerald-Smith
patent: 4520523 (1985-06-01), Fitzgerald-Smith et al.
patent: 4521932 (1985-06-01), Parramore

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