GB713388A - Improvements in and relating to electric motors - Google Patents

Improvements in and relating to electric motors

Info

Publication number
GB713388A
GB713388A GB1967152A GB1967152A GB713388A GB 713388 A GB713388 A GB 713388A GB 1967152 A GB1967152 A GB 1967152A GB 1967152 A GB1967152 A GB 1967152A GB 713388 A GB713388 A GB 713388A
Authority
GB
United Kingdom
Prior art keywords
pinion
brush
motor
rocker
spindle
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
GB1967152A
Inventor
Arthur Clive Lane
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 GB1967152A priority Critical patent/GB713388A/en
Publication of GB713388A publication Critical patent/GB713388A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/18—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having displaceable main or auxiliary brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)

Abstract

713,388. Alternating-current commutator motors. BRITISH THOMSONHOUSTON CO., Ltd. June 15, 1953 [Aug. 5, 1952], No. 19671/52. Class 35. The brush-gear of a Schrage motor has two actuators, one controlling the brush separation and the other regulating the position of the brush-gear axis, the combined control means being adapted to select such speed-torque curves as are desired to perform a given cycle of operation either for motoring or generating. As shown, a pilot motor M drives one brush rocker F through pinion A, whilst the other rocker G is driven through helical pinions C and D. Pinion C is fixed directly to a spindle which carries pinion B, and pinion D is free to slide along spindle H which carries pinion E, but is keyed to the spindle so that members D and H rotate together. The drive from motor M to pinion C is irreversible and cannot be transmitted from the pinion C through pinions B, A to the pilot motor. Two thrustors J, K operate by link mechanism L on to the helical pinion D which is able to take up three positions. In the neutral position shown, only one thrustor is excited, and any movement of the pilot motor M moves the brush rockers F, G, in opposite directions. With the pilot motor at rest and with the brush-gear in the neutral position shown, if both thrustors are excited the helical pinion D rises. This axial sliding of the pinion D causes rotation of the spindle H and pinion E, together with a corresponding movement of the brushrocker G. Similarly, if both thrustors are de-energized, the pinion D falls and the rocker G moves in the opposite direction. This movement of the rocker G in one direction or the other about the neutral setting results in forward or backward shift of the brush axis. The Schrage motor may be used for driving a sugar centrifugal, joint operation of brush separation and brush shift producing a required cycle of operation with maximum efficiency. The brush-gear has backward shift for conditions of heavy accelerating torque, and forward shift'under condition of high retarding torque. Specifications 366,686 and 534,430 are referred to.
GB1967152A 1952-08-05 1952-08-05 Improvements in and relating to electric motors Expired GB713388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1967152A GB713388A (en) 1952-08-05 1952-08-05 Improvements in and relating to electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1967152A GB713388A (en) 1952-08-05 1952-08-05 Improvements in and relating to electric motors

Publications (1)

Publication Number Publication Date
GB713388A true GB713388A (en) 1954-08-11

Family

ID=10133255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1967152A Expired GB713388A (en) 1952-08-05 1952-08-05 Improvements in and relating to electric motors

Country Status (1)

Country Link
GB (1) GB713388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155221A (en) * 1961-11-06 1964-11-03 Nat Biscuit Co Metering apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155221A (en) * 1961-11-06 1964-11-03 Nat Biscuit Co Metering apparatus

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