E - Fixed Constructions – 01 – B
Patent
E - Fixed Constructions
01
B
238/160
E01B 9/48 (2006.01) E01B 9/66 (2006.01) E01B 9/68 (2006.01)
Patent
CA 1062675
Application for Patent of Clarke Reynolds and Richard J. Quigley for RAIL FASTENER ABSTRACT OF THE DISCLOSURE A rail fastener includes a rail plate, a layer of elas- tomeric material between the plate and a support structure, and a pair of posts for laterally and longitudinally restraining the rail plate, with elastomeric material mounted between the posts and cooperating surfaces of the rail plate. The rail plate, the layer of elastomeric material, and the support structure on which it is mounted form a shear pad. The posts are partially embedded in the support structure and extend through respective openings in the rail plate, the inner peripheries of which are covered with elastomeric material, to provide lateral and longitudinal restraint to the rail plate. Each of these posts is preferably formed of two parts, one of which is embedded in the support structure, and the other of which is an eccentric which is releaseably attached thereto. Rotation of the eccentrics provides lateral and longitudinal adjustment of the rail plate with respect to the support structures, thereby providing lateral adjustment of the rail with respect to the support structure. The elastomeric material is preferably polyurethane having a relatively high resistance to abrasion and a known, predictable and wall defined coefficient of friction. The posts are of a size which eliminates the possibility of any move- ment thereof under ally expected lateral shear loads which may be imposed on the rail plate.
261839
Quigley Richard J.
Reynolds Clarke
Quigley Richard J.
Reynolds Clarke
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