Bridge piers

Details Bridge piers Bridge piers

1980-11-19

1982-11-23

Byers, Jr., Nile C.

Bridges

Pier

521231, 405197, E01D 1902

Patent

active

043597955

ABSTRACT:
A bridge pier is constructed from a number of serially gradated cribs nestable one within the other for transportation and manually mountable one upon the other in order of decreasing size on arrival at a site by the use of rotatable davits attachable to each upper-most crib in turn. When used for dry gap bridging the cribs are assembled upon a pair of adjustable length telescopic legs each pivotally connected to a load-spreading grillage and adjustable for use on slopes of up to 1 in 20. Both initial levelling and subsequent adjustment for ground settlement can be achieved by adjustment of the telescopic legs. When required for use in deep water bridging the cribs may be mounted directly upon a pontoon.

REFERENCES:
patent: 85171 (1868-12-01), Grant
patent: 105195 (1870-07-01), Gregory
patent: 174554 (1876-03-01), Mills
patent: 848304 (1907-03-01), Hines
patent: 926925 (1909-07-01), Carmony
patent: 1362069 (1920-12-01), Witzel
patent: 2377758 (1945-06-01), Cohen
patent: 2857026 (1958-10-01), Jones
patent: 3355853 (1967-12-01), Wallace

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