Improvements in or relating to structural bearings

1,148,983. Bearings. MACLELLAN RUBBER Ltd. 28 April, 1967 [5 July, 1966; 2 Sept., 1966], Nos. 30152/66 and 39212/66. Heading F2A. A rectilinear-motion bearing for a bridge, for example, has an upper member 1, Fig. 1, which is movable with a bridge-deck (not shown) and includes a resilient unit compr...

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Bibliographic Details
Main Authors WILLIAM ALEXANDER AUBREY WITHAM, JOHN ANDERSON
Format Patent
LanguageEnglish
Published 16.04.1969
Subjects
ASSEMBLY OF BRIDGES
BEARINGS
BLASTING
CONSTRUCTION OF BRIDGES
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
OR VIADUCTS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:1,148,983. Bearings. MACLELLAN RUBBER Ltd. 28 April, 1967 [5 July, 1966; 2 Sept., 1966], Nos. 30152/66 and 39212/66. Heading F2A. A rectilinear-motion bearing for a bridge, for example, has an upper member 1, Fig. 1, which is movable with a bridge-deck (not shown) and includes a resilient unit comprising a rectangular block of rubber 3 having bonded to its lower face a metal-plate 4, the lower face of which has a sheet 5 of P.T.F.E. adhered thereto; and has a lower member 2 attachable to a bridge-support (not shown) and provided with a stainless-steel plate 6 which engages the sheet 5 of P.T.F.E. of the upper member 1. The plate 4 may be perforated to facilitate bonding and is protected from the weather by projecting portions of the rubber block 3. In modifications, the stainlesssteel plate 6 on the bridge-support is replaced by a sheet of P.T.F.E.; the lower member 2 is provided with a block of rubber; resilient units 20, 21, Fig. 4, are mounted between a V-shaped channel 17 of a bridge-support 16 and a V- shaped protrusion 19 of a bridge-deck 18; a V-shaped protrusion is formed on the lower member 2 and is received in a V-shaped channel in the resilient unit of the upper member 1; and the contacting surfaces of the lower members and the resilient unit are provided with corresponding undulations which ensure that the relative movement is restricted to one longitudinal direction.
Bibliography:Application Number: GB19660030152