SE9701873L - Hydraulic Transmitter - Google Patents

Hydraulic Transmitter

Info

Publication number
SE9701873L
SE9701873L SE9701873A SE9701873A SE9701873L SE 9701873 L SE9701873 L SE 9701873L SE 9701873 A SE9701873 A SE 9701873A SE 9701873 A SE9701873 A SE 9701873A SE 9701873 L SE9701873 L SE 9701873L
Authority
SE
Sweden
Prior art keywords
switch
coupled
change
hydraulic transmitter
tongues
Prior art date
Application number
SE9701873A
Other languages
Swedish (sv)
Other versions
SE9701873D0 (en
SE520999C2 (en
Inventor
Rolf Beijbom
Lars-Goeran Schiller
Original Assignee
Bs Mekaniska Verkstads Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bs Mekaniska Verkstads Ab filed Critical Bs Mekaniska Verkstads Ab
Priority to SE9701873A priority Critical patent/SE520999C2/en
Publication of SE9701873D0 publication Critical patent/SE9701873D0/en
Publication of SE9701873L publication Critical patent/SE9701873L/en
Publication of SE520999C2 publication Critical patent/SE520999C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

A hydraulic cylinder (7) is connected via electrically controlled valves (5, 6) to an oil pump driven by an electric motor (1). The cylinder contains a piston (8) coupled via a drag rod (9) to the tongues in the switch (10). Circuit breakers (13-16) are coupled to two time relays (28, 29) in such a way that the mechanism repeatedly tries to carry out a switch change if a successful change is prevented by outside forces.
SE9701873A 1997-05-21 1997-05-21 Railway track switch changing hydraulic mechanism SE520999C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9701873A SE520999C2 (en) 1997-05-21 1997-05-21 Railway track switch changing hydraulic mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9701873A SE520999C2 (en) 1997-05-21 1997-05-21 Railway track switch changing hydraulic mechanism

Publications (3)

Publication Number Publication Date
SE9701873D0 SE9701873D0 (en) 1997-05-21
SE9701873L true SE9701873L (en) 1998-11-22
SE520999C2 SE520999C2 (en) 2003-09-23

Family

ID=20407007

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701873A SE520999C2 (en) 1997-05-21 1997-05-21 Railway track switch changing hydraulic mechanism

Country Status (1)

Country Link
SE (1) SE520999C2 (en)

Also Published As

Publication number Publication date
SE9701873D0 (en) 1997-05-21
SE520999C2 (en) 2003-09-23

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