GB223004A - Improvements in automatic drum type electric controllers - Google Patents

Improvements in automatic drum type electric controllers

Info

Publication number
GB223004A
GB223004A GB1989923A GB1989923A GB223004A GB 223004 A GB223004 A GB 223004A GB 1989923 A GB1989923 A GB 1989923A GB 1989923 A GB1989923 A GB 1989923A GB 223004 A GB223004 A GB 223004A
Authority
GB
United Kingdom
Prior art keywords
posts
drum type
magnet
controllers
type electric
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
GB1989923A
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.)
Crompton & Co Ltd
Original Assignee
Crompton & 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 Crompton & Co Ltd filed Critical Crompton & Co Ltd
Priority to GB1989923A priority Critical patent/GB223004A/en
Publication of GB223004A publication Critical patent/GB223004A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

223,004. Crompton & Co., Ltd., and Jones, W. F. Aug. 3, 1923. Controllers, drum.-Drum type controllers are provided with automatic trip coils mounted on prolongations of the posts supporting the stationar@ contact fingers. In the apparatus shown, an overload magnet F is fitted with spring contact clips P which removably engage prolongations of the contact-posts C and are secured thereto by locking springs Q. A stud R projecting from one of the magnet terminals enters a corresponding hole in one of the posts for the purpose of ensuring correct position. Alternatively, the magnet may be permanently secured to the posts.
GB1989923A 1923-08-03 1923-08-03 Improvements in automatic drum type electric controllers Expired GB223004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1989923A GB223004A (en) 1923-08-03 1923-08-03 Improvements in automatic drum type electric controllers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1989923A GB223004A (en) 1923-08-03 1923-08-03 Improvements in automatic drum type electric controllers

Publications (1)

Publication Number Publication Date
GB223004A true GB223004A (en) 1924-10-16

Family

ID=10136994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1989923A Expired GB223004A (en) 1923-08-03 1923-08-03 Improvements in automatic drum type electric controllers

Country Status (1)

Country Link
GB (1) GB223004A (en)

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