Title: Bridge reinforcements

Abstract: This invention provides an improved reinforcement for a bridge span, the reinforcement including a reinforcing member for attachment in an underslung position to the span, a reinforcing strut adapted at its first end for pivotal connection to a point intermediate the ends of the reinforcing member and jacking means for urging the reinforcing strut into its working position in which the reinforcing member is under tension. The improvement resides in that the jacking means is adapted to be mounted upon the bridge span and, in use, exerts a force transverse to the longitudinal axis of the strut to urge it into said working position in which the strut is, at its point of connection to the member, inclined at acute angles to the member.

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Inventors: Fitzgerald-Smith, James P. (near New Milton, GB)
Knight, Derek I. (Bournemouth, GB)

Application Number: 879996
Filing Date: 1978-02-22
Publication_date: 1979-03-13
Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government (London, GB2)
Primary Class(es): 14/10 14/5, 52/640
Other Classes:
US Patent Ref:

530425	Dec, 1894	Keating	14/17.
1467662	Sep, 1923	Aalst	52/226.
1813338	Jul, 1931	Botel	52/226.
2793720	May, 1957	Hawes	52/640.
2856644	Oct, 1958	Dunham	14/10.
3362117	Jan, 1968	Van Raden	52/640.
4021875	May, 1977	Abell	14/10.

Other Refs: 2324646

Dec, 1974	DE

Primary Examiner: Byers, Jr., Nile C.
Assistant Examiner:
Attorney: Pollock, VandeSande and Priddy