Roller assembly for a switch tongue used with a stock rail

Details Roller assembly for a switch tongue used with a stock rail Roller assembly for a switch tongue used with a stock rail

1993-07-12

1995-02-21

Oberleitner, Robert J.

Railway switches and signals

Switches

Chairs and plates

E01B 700

Patent

active

053908813

ABSTRACT:
A roller assembly for a rail switch tongue used with a stock rail exhibiting reduced friction and resistance to vibration includes roller elements for supporting the switch tongue. Each roller element is supported by elastomer springs, one having a damping and the other having a supporting characteristic. The spring elements are mechanically coupled so that loading of the roller elements by the switch tongue causes a change in the spring length.

REFERENCES:
patent: 1965803 (1934-07-01), Post et al.
patent: 2471357 (1949-05-01), Smith
patent: 2533929 (1950-12-01), Gray et al.
patent: 4105175 (1978-08-01), De Spiegeleer
patent: 4747898 (1988-05-01), Woltron

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