EP 0776398 A4 20001213 - SWITCH MACHINE

Title (en)

SWITCH MACHINE

Title (de)

WEICHENSTELLVORRICHTUNG

Title (fr)

MECANISME DE MAN UVRE D'UN AIGUILLAGE

Publication

EP 0776398 A4 20001213 (EN)

Application

EP 95931520 A 19950811

Priority

US 9510255 W 19950811
US 29312694 A 19940819
US 29312194 A 19940819
US 29324294 A 19940819
US 29312794 A 19940819
US 29312594 A 19940819

Abstract (en)

[origin: WO9606228A1] There is provided a switch machine (10) for controlling the position of railroad tracks having up to five improved capabilities. First, the switch machine (10) is designed to have a low vertical profile without increasing its axial length or sacrificing its functionality. Second, the switch machine (10) has a rail point detection and indication mechanism (210) that identifies a latch out condition when the railroad tracks are not at, or near, their proper positions before or after switching the railroad tracks. Third, the switch machine (10) has a trailing device (416) coupled to a throw bar (412) for enabling throwing of the switch points. Fourth, a cam bar (530) of the switch machine (10) locks and unlocks a lock bar (520) as required for railway track systems. Finally, an improved hand throw mechanism (730) of the switch machine (10) has a ratchet mechanism (740) that permits torque to be applied to the hand throw mechanism (730) in either a clockwise or counter-clockwise direction.

IPC 1-7

E01B 7/00; B61L 5/10; B61L 5/06

IPC 8 full level

B61L 5/02 (2006.01); B61L 5/06 (2006.01); B61L 5/10 (2006.01)

CPC (source: EP)

B61L 5/02 (2013.01); B61L 5/06 (2013.01); B61L 5/10 (2013.01)

Citation (search report)

[A] US 3483368 A 19691209 - WILSON ROSSER L, et al
[A] US 3418462 A 19681224 - WILSON ROSSER L, et al
[A] US 2707230 A 19550426 - BELTMAN GEORGE C, et al
[A] US 3691371 A 19720912 - HYLEN LYLE L
[A] US 5116006 A 19920526 - OCAMPO SALVADOR C [US]
[A] US 5192038 A 19930309 - OCAMPO SALVADOR C [US]
[A] US 2022359 A 19351126 - MCWHIRTER WILLIAM C
[A] US 3621237 A 19711116 - HYLEN LYLE L
[A] US 3427448 A 19690211 - REDELMAN PAUL E
See references of WO 9606228A1

Designated contracting state (EPC)

DE GB IT NL

DOCDB simple family (publication)

WO 9606228 A1 19960229; AU 3490995 A 19960314; AU 704448 B2 19990422; CA 2197985 A1 19960229; CA 2197985 C 20020226; EP 0776398 A1 19970604; EP 0776398 A4 20001213; MX 9701279 A 19970930

DOCDB simple family (application)

US 9510255 W 19950811; AU 3490995 A 19950811; CA 2197985 A 19950811; EP 95931520 A 19950811; MX 9701279 A 19950811