Title: Load-supporting structures

Abstract: A load-supporting structure comprises a plurality of similar longitudinally extending truss members each having upper and lower spaced-apart chords and intermediate joining members. The chords and joining members are constructed of rectangular tubular members, the joining members being arranged to overlap adjacent side surfaces of the respective chords which, in a preferred embodiment in which the tubular members are constructed of fibre-reinforced plastics material, provides large bond areas resulting in a strong lightweight structure. The load-supporting structures of the invention find particular application in forming the individual trackways of a temporary bridge structure, means being provided for attaching structures end-to-end and to suitable ramp portions.

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Inventors: Lawrence, Derek I. (Crewkerne, GB)

Application Number: 961204
Filing Date: 1978-11-16
Publication_date: 1980-05-06
Assignee: Westland Aircraft Limited (Yeovil, GB2)
Primary Class(es): 14/4 14/14, 52/693, 244/123, D25/132
Other Classes:
US Patent Ref:

38653	May, 1863	Briggs	14/3.
97714	Dec, 1869	Smith	14/3.
1880480	Oct, 1932	Ragsdale	52/694.
2165846	Jul, 1939	Gaisman	14/73.
2385142	Sep, 1945	Lank	14/13.
2467558	Apr, 1949	Kapnek	52/690.
3181187	May, 1965	Kahn	14/73.
3302361	Feb, 1967	Oudheusden	14/73.
3333517	Aug, 1967	Kohler	14/73.
3394419	Jul, 1968	Sedlacek	14/13.
3551237	Dec, 1970	Cox	52/693.
3591995	Jul, 1971	Troutner	52/693.
3646725	Mar, 1972	Troutner	52/693.
3849237	Nov, 1974	Zetlin	14/73.
3959544	May, 1976	Rogers	428/902.
4025675	May, 1977	Jowda	428/902.
4051289	Sep, 1977	Adamson	244/123.
4102108	Jul, 1978	Cody	52/693.

Other Refs:
Primary Examiner: Byers, Jr., Nile C.
Assistant Examiner:
Attorney: Larson, Taylor and Hinds