GB850647A - Improvements in high speed tripping mechanisms - Google Patents

Improvements in high speed tripping mechanisms

Info

Publication number
GB850647A
GB850647A GB702456A GB702456A GB850647A GB 850647 A GB850647 A GB 850647A GB 702456 A GB702456 A GB 702456A GB 702456 A GB702456 A GB 702456A GB 850647 A GB850647 A GB 850647A
Authority
GB
United Kingdom
Prior art keywords
wire
rollers
retained
high speed
speed tripping
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
GB702456A
Inventor
Alan Twemlow Freeman
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB702456A priority Critical patent/GB850647A/en
Publication of GB850647A publication Critical patent/GB850647A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G17/00—Mechanical devices for moving a member after being released; Trip or release mechanisms characterised thereby
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Breakers (AREA)

Abstract

850,647. Automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 27, 1957 [March 6, 1956], No. 7024/56. Class 38 (5). [Also in Group XXIV] A high-speed tripping mechanism has an actuating member 1 biased in the direction A but held in the Fig. 1 position by rollers 3, 4 between it and the inclined surface 2a of a fixed abutment 2. The rollers 3, 4 are retained in position by a member 5 attached to a wire 6 passing through aligned grooves 3a, 4a in the rollers 3, 4 so that only a small force need be applied to the wire in proportion to the biasing force applied to the member 1. When the force on the wire 6 is removed the rollers move between the converging surfaces 1a, 2a until the roller 4 passes over the edge 1d between surfaces 1a and 1b allowing the member 1 to move quickly to the Fig. 2 position and close the frusto-conical contacts 7. The wire 6 may be retained by a flux-diversion magnetic system.
GB702456A 1956-03-06 1956-03-06 Improvements in high speed tripping mechanisms Expired GB850647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB702456A GB850647A (en) 1956-03-06 1956-03-06 Improvements in high speed tripping mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB702456A GB850647A (en) 1956-03-06 1956-03-06 Improvements in high speed tripping mechanisms

Publications (1)

Publication Number Publication Date
GB850647A true GB850647A (en) 1960-10-05

Family

ID=9825199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB702456A Expired GB850647A (en) 1956-03-06 1956-03-06 Improvements in high speed tripping mechanisms

Country Status (1)

Country Link
GB (1) GB850647A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289039A (en) * 1978-04-10 1981-09-15 Cerberus Ag Release mechanism for a valve of a fire extinguishing installation
FR2514196A1 (en) * 1981-10-05 1983-04-08 Merlin Gerin DEVICE FOR ACTUATING AN ELECTRIC CIRCUIT BREAKER
US5377554A (en) * 1989-09-16 1995-01-03 Autoflug Gmbh & Co. Fahrzeugtechnik Release device for a mechanical energy storage means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289039A (en) * 1978-04-10 1981-09-15 Cerberus Ag Release mechanism for a valve of a fire extinguishing installation
FR2514196A1 (en) * 1981-10-05 1983-04-08 Merlin Gerin DEVICE FOR ACTUATING AN ELECTRIC CIRCUIT BREAKER
EP0077229A1 (en) * 1981-10-05 1983-04-20 Merlin Gerin Circuit breaker trip device
US5377554A (en) * 1989-09-16 1995-01-03 Autoflug Gmbh & Co. Fahrzeugtechnik Release device for a mechanical energy storage means

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