EP 0199667 A3 19880113 - RESILIENT PAD FOR STEEL Y-SLEEPERS
Title (en)
RESILIENT PAD FOR STEEL Y-SLEEPERS
Publication
Application
Priority
DE 3512200 A 19850403
Abstract (en)
[origin: EP0199667A2] 1. Resilient, insulating suporting base, which is wedge-shaped in an inclined manner towards the centre of the track, for Y-shaped steel sleepers, comprising two I-shaped steel supporting members, which are curved in opposite directions in a substantially S-shaped manner and have straight ends extending parallel to one another, both I-shaped steel supporting members each being welded at one end so as to form a supporting point for one rail of a track with a spacing therebetween, and the other two ends of the I-shaped steel supporting members being welded to a respective parallel, short, straight I-shaped steel supporting member, likewise with a spacing therebetween, so as to form supporting points for the other rail - laid rails of railway lines - characterised in that the supporting base is a one-piece construction ; - engages over both adjacent I-shaped steel supporting members (4, 5; 4, 6; 5, 7) ; - covers the supporting surfaces of the tensionning means (23, 24) at the sleeper end for securement of the rails ; - is formed from a material having a shearing moduls of elasticity of 5 X 10**5 to 3 X 10**9 Pa, which is thereby permanently resistant to fracture and is resistant to cracking in the temperature range of 235 degrees K to 350 degrees K (- 38 degrees C to + 77 degrees C) ; - has at least one cross-piece member (44, 45; 55, 56; 67, 68; 74) extending transversely relative to the wedge direction ; and - has projection members (47, 48; 59, 60; 71, 72; 75) protruding from its underside (46), which projection members extend parallel to the wedge direction and abut against two edges of the I-shaped steel supporting members (4, 5, 6, 7) between said supporting members or externally laterally thereof.
IPC 1-7
IPC 8 full level
CPC (source: EP)
E01B 9/34 (2013.01); E01B 9/685 (2013.01); E01B 9/681 (2013.01); E01B 9/686 (2013.01)
Citation (search report)
- [Y] FR 1398720 A 19650514 - SILGRA SOC IT LAVORAZIONE GOMM, et al
- [Y] LU 81085 A1 19800421 - ARBED
- [A] US 3826424 A 19740730 - MC CLUNG R, et al
- [A] US 2260238 A 19411021 - STEDMAN THEODORE W
- [A] GB 854290 A 19601116 - VAGNEUX TRAVERSES BETON, et al
- [A] BAUEN MIT KUNSTSTOFFEN, 1973, Seiten 9-10, Carl Hanser Verlag, München, DE; H. SEACHTLING: "Temperaturspektrum des mechanischen Verhaltens"
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0199667 A2 19861029; EP 0199667 A3 19880113; EP 0199667 B1 19901031; AT E57967 T1 19901115; DE 3512200 A1 19861009; DE 3675247 D1 19901206
DOCDB simple family (application)
EP 86730056 A 19860327; AT 86730056 T 19860327; DE 3512200 A 19850403; DE 3675247 T 19860327