EP 0214925 B1 19900411 - RAILWAY SWITCH
Title (en)
RAILWAY SWITCH
Publication
Application
Priority
DE 3531855 A 19850906
Abstract (en)
[origin: US4756476A] 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.
IPC 1-7
IPC 8 full level
E01B 7/00 (2006.01); E01B 3/16 (2006.01); E01B 7/22 (2006.01)
CPC (source: EP US)
E01B 7/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
US 4756476 A 19880712; AT E51909 T1 19900415; DE 3531855 C1 19860918; DE 3670319 D1 19900517; EP 0214925 A2 19870318; EP 0214925 A3 19880203; EP 0214925 B1 19900411; SU 1419524 A3 19880823; YU 133686 A 19880630; YU 47168 B 19950131
DOCDB simple family (application)
US 90417686 A 19860905; AT 86730135 T 19860905; DE 3531855 A 19850906; DE 3670319 T 19860905; EP 86730135 A 19860905; SU 4028092 A 19860904; YU 133686 A 19860725