F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
308/4
F16C 29/02 (2006.01) B29C 70/68 (2006.01) E01D 19/04 (2006.01)
Patent
CA 1197890
ABSTRACT A modular element for a bridge bearing or other structural bearing is manufactured by providing a press having relatively movable upper and lower members, the lower member having one or more upstanding posts or pins, and positioning on the lower member, successively, one or more rubber sheets, a lower metal plate, one or more rubber sheets, an upper metal sheet and one or more rubber sheets, the one or more posts or pins extending through holes in the metal plates and the rubber sheets and locating the metal plates to prevent lateral movement thereof. The press is operated to move the upper and lower members together and to subject the rubber sheets to pressure, while subjecting the rubber sheets to heat to effect vulcanization of the rubber and to bond the rubber to the metal plates whereby an intermediate layer of rubber is formed between the two plates and upper and lower layers of rubber are formed respectively above and below the upper and lower plates, the rubber deforming around and bonding to the edges of the metal plates such that the plates become completely encased in rubber. The resulting modular element is then removed from the press and a vulcanized rubber plug is inserted into the or each of the holes left by the one or more posts or pins.
410039
Dixon International Limited
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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