GB693208A - Improvements relating to centrifugal switches for electric motors - Google Patents

Improvements relating to centrifugal switches for electric motors

Info

Publication number
GB693208A
GB693208A GB28033/51A GB2803351A GB693208A GB 693208 A GB693208 A GB 693208A GB 28033/51 A GB28033/51 A GB 28033/51A GB 2803351 A GB2803351 A GB 2803351A GB 693208 A GB693208 A GB 693208A
Authority
GB
United Kingdom
Prior art keywords
weights
switch
centrifugal
fixed
speed
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
GB28033/51A
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.)
Hoover Ltd
Original Assignee
Hoover 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 Hoover Ltd filed Critical Hoover Ltd
Publication of GB693208A publication Critical patent/GB693208A/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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/23—Mechanically-actuated centrifugal switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

693,208. Centrifugal switches. HOOVER, Ltd. Nov. 29, 1951 [Dec. 2, 1950], No. 28033/51. Class 38 (v) A centrifugal switch which may open the circuit of the starting winding of an induction motor when a sufficient speed has been reached, has two weights 60 which are pivoted by lugs 61 in slots 41 of a rotating support 35 and under the influence of centrifugal force move outwards to cause the longitudinal movement of member 45 against the action of a spring 43 which also keeps the weights in place. The member 45 has projections 47 which engage slots 62 in the weights and forms parts of a member 50 adapted, when the speed lessens, to press against buttons 55 on an annular non-rotating spring plate 24 fixed at its lower end, Fig. 3 so that a contact 22 engages a fixed contact 21. The rotary parts of the switch may all be mounted on a sleeve 30 fixed to the shaft 2 by a screw 32. The weights 60 are readily removable and may carry lead inserts to increase their mass and so vary the operating speed of the switch.
GB28033/51A 1950-12-02 1951-11-29 Improvements relating to centrifugal switches for electric motors Expired GB693208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US198816A US2644683A (en) 1950-12-02 1950-12-02 Switch governor having perpendicularly pivoted insertable weights

Publications (1)

Publication Number Publication Date
GB693208A true GB693208A (en) 1953-06-24

Family

ID=22734977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28033/51A Expired GB693208A (en) 1950-12-02 1951-11-29 Improvements relating to centrifugal switches for electric motors

Country Status (3)

Country Link
US (1) US2644683A (en)
DE (1) DE909730C (en)
GB (1) GB693208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493158A (en) * 1993-10-04 1996-02-20 Emerson Electric Co. Motor capacitor bracket

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747854A (en) * 1951-06-27 1956-05-29 Gen Motors Corp Snap acting speed responsive device
US3532841A (en) * 1968-12-09 1970-10-06 Controls Co Of America Centrifugal switch

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580161A (en) * 1923-05-11 1926-04-13 Cook Electric Co Starting switch for motors
US1897405A (en) * 1931-05-20 1933-02-14 Bodine Electric Company Speed responsive electric switch
US1926339A (en) * 1931-12-30 1933-09-12 Delco Prod Corp Centrifugal switch
US2095755A (en) * 1935-12-07 1937-10-12 Westinghouse Electric & Mfg Co Centrifugal switch operating mechanism
US2416973A (en) * 1944-12-20 1947-03-04 Gen Electric Centrifugal switch
US2573968A (en) * 1946-06-15 1951-11-06 Eureka Williams Corp Centrifugal switch
US2538410A (en) * 1946-09-03 1951-01-16 Century Electric Company Dynamoelectric machine
US2544791A (en) * 1946-12-27 1951-03-13 James T Hunt Speed responsive device of the flyball type
US2512405A (en) * 1948-05-22 1950-06-20 Gen Electric Centrifugal mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493158A (en) * 1993-10-04 1996-02-20 Emerson Electric Co. Motor capacitor bracket

Also Published As

Publication number Publication date
DE909730C (en) 1954-04-22
US2644683A (en) 1953-07-07

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