Composite railway tie

Details Composite railway tie Composite railway tie

1975-06-04

1976-11-30

Spar, Robert J.

Railways: surface track

Ties

Nonmetallic

238 85, 238 90, 238 91, 238117, 238310, E01B 332, E01B 340

Patent

active

039944360

ABSTRACT:
The composite railway tie has performances which are substantially improved over those of ties of the prior art while it results in a saving in weight of metal necessary and in the cost of manufacture.
The reinforcement of this tie comprises a lower assembly and an upper assembly each formed by a folded steel wire defining parallel lengths of wire connected by curved portions. The reinforcement also comprises an S-section tie member including a web which is substantially vertical and contained in the vertical plane of symmetry of the tie and two flanges which are roughly horizontal. This tie member may be manufactured on a press or by cold folding relatively cheap flat steel products.

REFERENCES:
patent: 722501 (1903-03-01), Dunnell
patent: 1065313 (1913-06-01), Lucabaugh
patent: 1065686 (1913-06-01), Hyle
patent: 1130455 (1915-03-01), Willard
patent: 1689754 (1928-10-01), Serra
patent: 2754674 (1956-07-01), Malsbury et al.
patent: 3302360 (1967-02-01), Bjerking

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