Railway switch

Railways: surface track – Ties – Forms

Patent

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Details

238 27, 246454, E01B 722

Patent

active

047564768

ABSTRACT:
A railway switch is mounted on y-shaped sleepers. All sleepers in the switch have a medium portion of equal slightly s-shaped configuration and length. The length of the straight and parallel ends depends on the position of the individual sleeper in the switch. The sleepers extend alternately from one outer rail in the direction to the other outer rail. The crossing piece is supported by y-shaped sleepers which underlie only the crossing piece and alternately one of the outer rails in the switch. If the switch comprises a straight and a curved line, all sleepers supporting the outer straight rail are arranged at a right angle to the straight line and protrude outwardly over the straight rail in the same length. Preferably the sleepers are composed of two s-shaped I-beam steel profiles and additional shorter I-beam steel profiles at the bifurcated straight ends, all pairs of adjacent I-beams being connected at a distance forming a slit for inserting a coach screw.

REFERENCES:
patent: 524999 (1894-08-01), Benjamin
patent: 838573 (1906-12-01), O'Connor
patent: 946760 (1910-01-01), Leahy
patent: 2815185 (1957-12-01), Hirtenstein
patent: 4285115 (1981-08-01), Frenzel

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