GB247607A - Improvements in and relating to braking systems for electric motors - Google Patents

Improvements in and relating to braking systems for electric motors

Info

Publication number
GB247607A
GB247607A GB4316/26A GB431626A GB247607A GB 247607 A GB247607 A GB 247607A GB 4316/26 A GB4316/26 A GB 4316/26A GB 431626 A GB431626 A GB 431626A GB 247607 A GB247607 A GB 247607A
Authority
GB
United Kingdom
Prior art keywords
motor
relating
electric motors
braking systems
controlling
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
GB4316/26A
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
Publication of GB247607A publication Critical patent/GB247607A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B66B1/08—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. handles or levers, in the cars or cages for direct control of movements

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

247,607. British Thomson-Houston Co., Ltd., (Assignees of Jones, B. W.). Feb. 14, 1925, [Convention date]. Drawings to Specification. Motors, controlling.-For stopping a reversible electric motor, as in the operation of lifts, an electromagnet which holds off a brake during movement is gradually weakened by insertion of resistance to an extent depending on the back electromotive force of the motor and on the magnitude of rheostatic braking in a short-circuit around the motor armature, with a time element depending on the arrangement of controlling relays. Full details of the sequence of operations are given in the Specification with the aid of a diagram showing a system of contactor and switch connections.
GB4316/26A 1925-02-14 1926-02-15 Improvements in and relating to braking systems for electric motors Expired GB247607A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US247607XA 1925-02-14 1925-02-14

Publications (1)

Publication Number Publication Date
GB247607A true GB247607A (en) 1927-01-13

Family

ID=21822263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4316/26A Expired GB247607A (en) 1925-02-14 1926-02-15 Improvements in and relating to braking systems for electric motors

Country Status (1)

Country Link
GB (1) GB247607A (en)

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