Railways: surface track – Tie-plates
Patent
1975-06-23
1976-10-26
Spar, Robert J.
Railways: surface track
Tie-plates
238340, E01B 946
Patent
active
039879623
ABSTRACT:
The invention relates to a rail fastening arrangement for securing a flat bottom rail on a foundation having preformed holes therein.
There is provided a base plate on which the flat bottom of the rail rests and anchors for securing the base plate to the preformed holes in the foundation. A pair of rail clips is provided one on each side of the rail with bolts passing through a bolt aperture in each clip and engaging in a preformed bolt hole in the base plate. Each clip has symmetrically spaced about its bolt aperture at least one pair of recesses and the base plate has symmetrically spaced about each of its bolt holes an upstanding pin is received and located in a recess of one of the clips. Each clip is engageable with the base plate with one of its recesses receiving an upstanding pin of the base plate in at least two alternative dispositions. Each clip has for each recess a respective rail foot abutting and clamping shoulder, one of which rail foot abutting and clamping shoulders faces inwardly towards the rail foot for each alternative disposition of engagement of the clip with the base plate and for each clip, each respective rail foot abutting and clamping shoulder is differentially spaced from the center of the bolt aperture of the clip.
REFERENCES:
patent: 1130797 (1915-03-01), Cornell
patent: 1148491 (1915-07-01), Hall
patent: 1836713 (1931-12-01), Hewitt
patent: 2168324 (1939-08-01), Case
patent: 3457825 (1969-07-01), Caty
patent: 3758032 (1973-09-01), Varga
Resilient Grip Limited
Slattery James M.
Spar Robert J.
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