GB294495A - Improvements in and relating to the control of electric motors - Google Patents

Improvements in and relating to the control of electric motors

Info

Publication number
GB294495A
GB294495A GB472627A GB472627A GB294495A GB 294495 A GB294495 A GB 294495A GB 472627 A GB472627 A GB 472627A GB 472627 A GB472627 A GB 472627A GB 294495 A GB294495 A GB 294495A
Authority
GB
United Kingdom
Prior art keywords
switches
rise
electric motors
relating
control
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
GB472627A
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 GB472627A priority Critical patent/GB294495A/en
Publication of GB294495A publication Critical patent/GB294495A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

294,495. British Thomson-Houston Co., Ltd., and Given, R. D. Feb. 19, 1927. Follow.up control systems.-For raising and lowering a platform to follow rise and fall of a liquid surface, electric motors 1, 2 are successively switched-in by switches B<1>, B<3> mounted on a shaft E<1> which is operated through a oneway chain and sprocket coupling by the rise of a float D; the motors are successively switchedout by switches B<2>, B<4> on a shaft E<2> which is operated through a similar coupling by the rise of the platform. When the float falls the pairs of switches interchange their functions.
GB472627A 1927-02-19 1927-02-19 Improvements in and relating to the control of electric motors Expired GB294495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB472627A GB294495A (en) 1927-02-19 1927-02-19 Improvements in and relating to the control of electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB472627A GB294495A (en) 1927-02-19 1927-02-19 Improvements in and relating to the control of electric motors

Publications (1)

Publication Number Publication Date
GB294495A true GB294495A (en) 1928-07-19

Family

ID=9782617

Family Applications (1)

Application Number Title Priority Date Filing Date
GB472627A Expired GB294495A (en) 1927-02-19 1927-02-19 Improvements in and relating to the control of electric motors

Country Status (1)

Country Link
GB (1) GB294495A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225453A (en) * 1988-09-20 1990-05-30 Atsugi Unisia Corp Position encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225453A (en) * 1988-09-20 1990-05-30 Atsugi Unisia Corp Position encoder
US5064031A (en) * 1988-09-20 1991-11-12 Atsugi Unisia Corporation Motor operated actuator with position encoder for stopping actuator at desired position
GB2225453B (en) * 1988-09-20 1992-11-25 Atsugi Unisia Corp Motor operated actuator with position encoder for stopping actuator at desired position

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