Electrically insulating device for use on a railway track under

Details Electrically insulating device for use on a railway track under Electrically insulating device for use on a railway track under

1987-01-27

1988-07-19

Basinger, Sherman D.

Railways: surface track

Ties

Insulation

238265, 238283, 238382, E01B 968

Patent

active

047579455

ABSTRACT:
A device to be placed on a railway sleeper (1) or some other foundation for a railway rail (3) includes a pad (2) and two upstanding portions (6A). The pad (2) is of resilient and electrically insulating material and the upstanding portions (6A) are of stiffer electrically insulating material. At least two-thirds of the area of the pad (2) has none of the stiffer material above or below it. Preferably the upstanding portions (6A) are at least 150 mm. long and are on elongate members (6) which have ears (6B) at opposite ends which extend under only corners of the pad (2), where they are secured by spigots (2E) projecting into holes (6C).

REFERENCES:
patent: 2713974 (1955-07-01), Lofton
patent: 4208011 (1980-06-01), Dahlhaus et al.
patent: 4231908 (1980-11-01), Pennino
patent: 4239156 (1980-12-01), Skinner et al.
patent: 4632307 (1986-12-01), Weber
patent: 4648554 (1987-03-01), McQueen

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