GB354899A - Improvements in or relating to retarding mechanism for electric switches - Google Patents

Improvements in or relating to retarding mechanism for electric switches

Info

Publication number
GB354899A
GB354899A GB1691430A GB1691430A GB354899A GB 354899 A GB354899 A GB 354899A GB 1691430 A GB1691430 A GB 1691430A GB 1691430 A GB1691430 A GB 1691430A GB 354899 A GB354899 A GB 354899A
Authority
GB
United Kingdom
Prior art keywords
wheel
pawl
contactor
oscillatory mass
inertia
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
GB1691430A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1691430A priority Critical patent/GB354899A/en
Publication of GB354899A publication Critical patent/GB354899A/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

354,899. Retarding action of electromagnetic switches, drum controllers, &c. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WILSON, W., of General Electric Co., Witton, Birming- ham. May 31, 1930, No. 16914. [Classes 38 (iii) and 38 (v).] A retarding device for a contactor or power-operated switch or for a drum controller &c. comprises an escapement wheel 1 driven by the switch-closing mechanism, the speed of rotation of the wheel 1 being governed by a balanced oscillatory mass of variable moment of inertia having pallets 3, 4 engaging the wheel 1. The oscillatory mass may include two spindles 8, 9, carrying weights 10, 11 movable thereon to varying distances from the centre of oscillation 6, or the oscillatory mass may consist of a flywheel, the moment of inertia of which is regulated by screws round its periphery. The wheel 1 is driven by gearing from a wheel 15 having six pins 18 which are engaged in turn by a pawl 17 on a bell-crank lever 22, 21 connected to the armature of the contactor. When the contactor electromagnet is de-energized the lever 22, 21 rotates in a clockwise direction and the pawl 17 slides upwards to engage the next pin 18. When the electromagnet is energized the pawl 17 drives the wheel 15 at a rate determined by the escapement mechanism.
GB1691430A 1930-05-31 1930-05-31 Improvements in or relating to retarding mechanism for electric switches Expired GB354899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1691430A GB354899A (en) 1930-05-31 1930-05-31 Improvements in or relating to retarding mechanism for electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1691430A GB354899A (en) 1930-05-31 1930-05-31 Improvements in or relating to retarding mechanism for electric switches

Publications (1)

Publication Number Publication Date
GB354899A true GB354899A (en) 1931-08-20

Family

ID=10085944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1691430A Expired GB354899A (en) 1930-05-31 1930-05-31 Improvements in or relating to retarding mechanism for electric switches

Country Status (1)

Country Link
GB (1) GB354899A (en)

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