Railways: surface track – Fastenings – Clamps
Patent
1982-07-08
1984-10-30
Reese, Randolph
Railways: surface track
Fastenings
Clamps
238338, 238304, E01B 948
Patent
active
044796072
ABSTRACT:
Disclosed is a rail fastening device adapted to fasten a rail. The device includes leaf springs each being bent at its intermediate portion and provided at its base portion with a screw spike hole and at the rail pressing end thereof with an elongated hole. A tie plate is laid between a rail and a sleeper. The tie plate has a central rail mounting surface and screw spike holes formed at both sides of the rail mounting surface. The screw spike holes formed in the base of the leaf spring and in the tie plate at each side of the rail are adapted to receive a screw spike having a flange having a diameter smaller than the width of the elongated slot. The device further has a fastening member on the peripheral surface of the screw spike and adapted to press, when the screw spike is driven into the sleeper through the screw spike holes into the sleeper, the periphery of the screw spike hole in the base end of the leaf spring onto the periphery of the screw spike hole in the tie plate, while leaving a gap between the flange and the leaf spring.
REFERENCES:
patent: 1067125 (1913-07-01), Maney
patent: 2446857 (1948-08-01), Snyder
patent: 3366335 (1968-01-01), Baker
patent: 3451621 (1969-06-01), De Splinter
patent: 3982692 (1976-09-01), Feyrer et al.
patent: 4150792 (1979-04-01), Qureshi
patent: 4179067 (1979-12-01), Baier
patent: 4424935 (1984-01-01), Langman et al.
Okumura Shuichi
Satoh Yutaka
Foster Glenn
Reese Randolph
Toyo Kizai Kabushiki Kaisha
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