Device for folding the spans of a bridge for transport on a vehi

Details Device for folding the spans of a bridge for transport on a vehi Device for folding the spans of a bridge for transport on a vehi

1979-11-26

1982-03-16

Byers, Jr., Nile C.

Bridges

Transportable

14 27, E01D 1512

Patent

active

043193757

ABSTRACT:
A transportable bridge unit has bridge spans located side-by-side and held apart with a space between the spans by crosspieces which include spars connected heightwise to the bridge spans and to a central transverse web in a manner that enables the spans to change their positions relative to each other. According to a preferred embodiment, holders are provided for interconnection of the transverse web with the spars connected to the bridge spans into which connecting pins are insertable. By removal of both pins, the bridge spans can be disconnected from the transverse web and carried adjacent one another on a transporting vehicle, while removal of only the upper one of the connecting pins from its receiving holder enables the spans to pivot about the lower connecting pin so that the spans can be folded downwardly relative to the transverse web against one another so as to be transportable in a connected condition that is reduced in its transverse extent relative to its operational width.

REFERENCES:
patent: 840636 (1907-01-01), Lillow
patent: 2341166 (1944-02-01), Todd
patent: 2384409 (1945-09-01), Watter
patent: 3009326 (1961-11-01), Williams
patent: 3021544 (1962-02-01), Gillois
patent: 3143827 (1964-08-01), Stowalter
patent: 3343321 (1967-09-01), Axelsson
patent: 4073025 (1978-02-01), Peckham
patent: 4100708 (1978-07-01), Bobrovnikov

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