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GB801048A - Clutch for switch machines - Google Patents

Clutch for switch machines

Info

Publication number
GB801048A
GB801048A GB35881/56A GB3588156A GB801048A GB 801048 A GB801048 A GB 801048A GB 35881/56 A GB35881/56 A GB 35881/56A GB 3588156 A GB3588156 A GB 3588156A GB 801048 A GB801048 A GB 801048A
Authority
GB
United Kingdom
Prior art keywords
clutch
engage
points
motor
nov
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB35881/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB801048A publication Critical patent/GB801048A/en
Expired legal-status Critical Current

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
    • B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
    • B61L5/065—Construction of driving mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

801,048. Ratchet clutches. STANDARD TELEPHONES & CABLES, Ltd. Nov. 23, 1956 [Nov. 29, 1955], No. 35881/56. Class 80 (2). [Also in Group XXX] In a machine for operating railway points an over-running clutch 2 is provided between a driving motor 1 and an intermediate gear 4 such that a positive connection between the motor 1 and the points mechanism 5, 6, 7 is only established for normal point throwing movement and remains disconnected for the trailing movement. The clutch may comprise two centrifugal levers 14 moved outwards by rotation of the motor 1 and shaft 11 to engage a dog 18 on a plate 15 connected through a'friction coupling with the gear 3. A second form of clutch, Fig. 5, comprises flyweights 24 moved outwards against springs 25 by centrifugal force to engage a drum 27. A third form of clutch, Fig. 7, has a pivoted pawl 33 moved against the action of springs 36, by acceleration, to engage a toothed wheel 40. Retardation of a plate 41 by inertia assists the engagement of the pawl 33 through the action of a driver pin 43. A control lever 45 may apply a spring 46 to the disc 41 to engage the clutch for manual operation of the points.
GB35881/56A 1955-11-29 1956-11-23 Clutch for switch machines Expired GB801048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE801048X 1955-11-29

Publications (1)

Publication Number Publication Date
GB801048A true GB801048A (en) 1958-09-03

Family

ID=6714781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35881/56A Expired GB801048A (en) 1955-11-29 1956-11-23 Clutch for switch machines

Country Status (1)

Country Link
GB (1) GB801048A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228498A (en) * 1963-02-14 1966-01-11 Dick Co Ab Drive pulley and clutch for duplicating machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228498A (en) * 1963-02-14 1966-01-11 Dick Co Ab Drive pulley and clutch for duplicating machines

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