GB803420A - Improvements in or relating to centrifugal switches - Google Patents

Improvements in or relating to centrifugal switches

Info

Publication number
GB803420A
GB803420A GB37513/54A GB3751354A GB803420A GB 803420 A GB803420 A GB 803420A GB 37513/54 A GB37513/54 A GB 37513/54A GB 3751354 A GB3751354 A GB 3751354A GB 803420 A GB803420 A GB 803420A
Authority
GB
United Kingdom
Prior art keywords
plate
members
switch
dec
centrifugal
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
GB37513/54A
Inventor
Frederick Raymond Jones
Richmond Ernest Hall
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB37513/54A priority Critical patent/GB803420A/en
Priority to US555729A priority patent/US2859294A/en
Priority to FR1144291D priority patent/FR1144291A/en
Publication of GB803420A publication Critical patent/GB803420A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/06—Switches operated by change of speed
    • H01H35/10—Centrifugal switches

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

803,420. Centrifugal switches. PLESSEY CO., Ltd. Dec. 29, 1955 [Dec. 29, 1954], No. 37513/54. Class 38 (5). A centrifugal switch device comprises a pair of members 25 pivoted on a frame 21 which is clamped to a rotating shaft, the members 25 being weighted so that at speed they swing out and engage a pivoted operating plate 29 of a snap-action switch, and the frictional engagement between a member and the plate is sufficient to cause the member to continue to swing outwards until the plate moves through its dead centre position. The members 25 are oppositely disposed on the frame and have actuating surfaces at each end so that the switch operates for either rotational direction and for increasing and decreasing speed. The switch proper comprises a kinked spring blade 32 whose end engages a slot in a plate 35 secured to the plate 29 and which carries a movable contact which engages a fixed contact.
GB37513/54A 1954-12-29 1954-12-29 Improvements in or relating to centrifugal switches Expired GB803420A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB37513/54A GB803420A (en) 1954-12-29 1954-12-29 Improvements in or relating to centrifugal switches
US555729A US2859294A (en) 1954-12-29 1955-12-27 Centrifugal switches
FR1144291D FR1144291A (en) 1954-12-29 1955-12-28 Centrifugal contactor for controlling electrical circuits, in particular for automatically starting induction motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37513/54A GB803420A (en) 1954-12-29 1954-12-29 Improvements in or relating to centrifugal switches

Publications (1)

Publication Number Publication Date
GB803420A true GB803420A (en) 1958-10-22

Family

ID=10397028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37513/54A Expired GB803420A (en) 1954-12-29 1954-12-29 Improvements in or relating to centrifugal switches

Country Status (3)

Country Link
US (1) US2859294A (en)
FR (1) FR1144291A (en)
GB (1) GB803420A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291004B (en) * 1964-03-06 1969-03-20 Franklin Electric Co Inc Switching centrifugal device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377830A (en) * 1943-01-01 1945-06-05 Ibm Speed responsive switch
US2483122A (en) * 1946-02-19 1949-09-27 Gen Electric Circuit controlling device
US2519140A (en) * 1946-09-06 1950-08-15 Holtzer Cabot Inc Centrifugal cutout switch
US2487555A (en) * 1947-09-12 1949-11-08 Oster John Mfg Co Centrifugal switch
GB733565A (en) * 1952-10-08 1955-07-13 Gen Electric Co Ltd Improvements in or relating to centrifugal governors
GB733564A (en) * 1952-10-08 1955-07-13 Gen Electric Co Ltd Improvements in or relating to centrifugally actuated electric switches

Also Published As

Publication number Publication date
US2859294A (en) 1958-11-04
FR1144291A (en) 1957-10-11

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