Railroad sleeper lock-in shoulder

Details Railroad sleeper lock-in shoulder Railroad sleeper lock-in shoulder

1983-12-07

1986-07-15

Reeves, Robert B.

Railways: surface track

Fastenings

Clamps

238310, E01B 934

Patent

active

046001450

ABSTRACT:
A lock-in shoulder is provided with a head at its upper end which, upon assembly, engages the upper surface of a "U" shaped knock-on clip, abutment wings which abut the upper surface of a sleeper, a rail engaging surface which engages an edge of the rail foot, a back surface which engages a surface of an aperture through the sleeper, and an upwardly facing surface which engages the sleeper underface.

REFERENCES:
patent: 846724 (1907-03-01), Bowman
patent: 1798092 (1931-03-01), Lossl
patent: 2085970 (1937-07-01), Greene
patent: 2333518 (1943-11-01), Burkhardt
patent: 3356299 (1967-12-01), Boyer
patent: 4023732 (1977-05-01), Mathis
patent: 4312478 (1982-01-01), Matsuo et al.
patent: 4325510 (1982-04-01), Sherrick

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