GB1249032A - Current sensing switch apparatus - Google Patents

Current sensing switch apparatus

Info

Publication number
GB1249032A
GB1249032A GB56169A GB56169A GB1249032A GB 1249032 A GB1249032 A GB 1249032A GB 56169 A GB56169 A GB 56169A GB 56169 A GB56169 A GB 56169A GB 1249032 A GB1249032 A GB 1249032A
Authority
GB
United Kingdom
Prior art keywords
housing
magnetic
current sensing
sensing switch
switch apparatus
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
GB56169A
Inventor
Brian Turton Smith
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB56169A priority Critical patent/GB1249032A/en
Publication of GB1249032A publication Critical patent/GB1249032A/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
    • H01H71/2445—Electromagnetic mechanisms using a reed switch

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

1,249,032. Electromagnetic relays. WESTINGHOUSE BRAKE & SIGNAL CORP. Ltd. 28 Nov., 1969 [3 Jan., 1969], No. 561/69. Heading H1N. A relay responsive to current in a single conductor 7 has a sealed magnetic reed contact unit (Fig. 1, not shown) within a non-magnetic housing 1 between two ferromagnetic elements 3, 4 which are adjustable to set the flux concentration in the space between them. Fig. 3 shows an alternative arrangement with tubular ferromagnetic elements 9, 10 with the contact unit 11 surrounded by a non-magnetic member 12. Contact chatter may be reduced if the housing 1 is made of conducting material such as copper or if the housing is provided with a copper sleeve or shroud (not shown). Alternatively, the member 12 may be the smoothing conductor and the housing 1 omitted.
GB56169A 1969-01-03 1969-01-03 Current sensing switch apparatus Expired GB1249032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB56169A GB1249032A (en) 1969-01-03 1969-01-03 Current sensing switch apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56169A GB1249032A (en) 1969-01-03 1969-01-03 Current sensing switch apparatus

Publications (1)

Publication Number Publication Date
GB1249032A true GB1249032A (en) 1971-10-06

Family

ID=9706541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56169A Expired GB1249032A (en) 1969-01-03 1969-01-03 Current sensing switch apparatus

Country Status (1)

Country Link
GB (1) GB1249032A (en)

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