Abstract: A roller assembly for facilitating movement of a switch rail between two positions. In one embodiment, the roller assembly includes a frame adapted for attachment to the switch rail and having a pocket formed therein, and an elastomer assembly, at least a portion of which is slidably disposed within the pocket. The elastomer assembly includes a roller wheel and an elastomeric block. The roller wheel travels along the surface of a tie plate when the switch rail is moved between positions. The elastomeric block is adapted to compress under a load applied to the switch rail in the direction of the tie plate, causing the roller wheel to retract in the direction of the pocket. When the weight of a train is exerted on the roller assembly, the compression of the elastomeric block causes the train to ride fully on the rails, just as if the roller assembly were not present. When no weight is exerted on the roller assembly, the roller assembly assists the switch to move freely between positions.

Abstract: A switch blade rolling device has a suspended rolling support on which the switch blade is moved, a body provided with a hook, side parts, a transverse end wall with an end opening and a bottom transverse wall with a bottom opening. The clamping claw is anchored in the end opening and the elastic support is screwed into the bottom opening. The free end of an oscillating lever is supported at the top on the elastic support and is mounted in the longitudinal direction with an oscillating lever bolt between side parts. The oscillating lever carries two rollers on roll bolts. The first roller is arranged above the elastic support and is mounted in the longitudinal direction with an oscillating lever bolt between side parts. The oscillating lever carries two rollers on roll bolts. The first roller is arranged above the elastic support and the second roller is arranged between the oscillating lever bolt and the first roller.