GB584880A - Improvements in starting switches for electric motors - Google Patents

Improvements in starting switches for electric motors

Info

Publication number
GB584880A
GB584880A GB249045A GB249045A GB584880A GB 584880 A GB584880 A GB 584880A GB 249045 A GB249045 A GB 249045A GB 249045 A GB249045 A GB 249045A GB 584880 A GB584880 A GB 584880A
Authority
GB
United Kingdom
Prior art keywords
electric motors
starting switches
carrier
switch
motorstarter
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
GB249045A
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.)
BERNARD STOKES
JA Crabtree and Co Ltd
Original Assignee
BERNARD STOKES
JA Crabtree and 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 BERNARD STOKES, JA Crabtree and Co Ltd filed Critical BERNARD STOKES
Priority to GB249045A priority Critical patent/GB584880A/en
Publication of GB584880A publication Critical patent/GB584880A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H01H50/22—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

584,880. Electromagnetic switches. CRABTREE & CO., Ltd., J. A., HILL, W. E., and STOKES, B. Jan. 31, 1945, No. 2490. [Class 38 (v)] An auxiliary switch to insert an economy resistance in the operating coil of an A.C. motorstarter switch, such as that described in Specification 417,567, when used on D.C., comprises a spring-urged blade e pivoted in a hole a in its support m and actuated by an adjustable screw h mounted on the moving contact-carrier a, near the middle to reduce variation of adjustment due to tilting of the carrier.
GB249045A 1945-01-31 1945-01-31 Improvements in starting switches for electric motors Expired GB584880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB249045A GB584880A (en) 1945-01-31 1945-01-31 Improvements in starting switches for electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB249045A GB584880A (en) 1945-01-31 1945-01-31 Improvements in starting switches for electric motors

Publications (1)

Publication Number Publication Date
GB584880A true GB584880A (en) 1947-01-24

Family

ID=9740490

Family Applications (1)

Application Number Title Priority Date Filing Date
GB249045A Expired GB584880A (en) 1945-01-31 1945-01-31 Improvements in starting switches for electric motors

Country Status (1)

Country Link
GB (1) GB584880A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481555A (en) * 1981-09-24 1984-11-06 Mitsubishi Denki Kabushiki Kaisha Electromagnetic contact device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481555A (en) * 1981-09-24 1984-11-06 Mitsubishi Denki Kabushiki Kaisha Electromagnetic contact device

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