GB548712A - Improvements in or relating to electric instrument relays - Google Patents

Improvements in or relating to electric instrument relays

Info

Publication number
GB548712A
GB548712A GB507241A GB507241A GB548712A GB 548712 A GB548712 A GB 548712A GB 507241 A GB507241 A GB 507241A GB 507241 A GB507241 A GB 507241A GB 548712 A GB548712 A GB 548712A
Authority
GB
United Kingdom
Prior art keywords
relays
relating
contacts
release
electric instrument
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
GB507241A
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.)
Sangamo Weston Ltd
Atos Origin IT Services Inc
Original Assignee
Sangamo Weston Ltd
Sangamo Weston Inc
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 Sangamo Weston Ltd, Sangamo Weston Inc filed Critical Sangamo Weston Ltd
Priority to GB507241A priority Critical patent/GB548712A/en
Publication of GB548712A publication Critical patent/GB548712A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Breakers (AREA)

Abstract

548,712. Electromagnetic relays. SANGAMO WESTON, Ltd., and SNELL, M. S. April 18, 1941, No. 5072. [Class 38 (v)] Instrument-type relays having contacts 3, 7, held together by magnetic attraction, are released or " reset " by magnetic repulsion. In the form shown in Fig. 1, the contact 7 is a permanent magnet which is attracted by the iron contact 3 when the needle 2 approaches sufficiently. To release, a switch 6 is closed, energizing a winding 4 so as to repel the magnet 7. In a modification, both contacts may be magnetized by currents of direction to cause attraction, release being effected by reversing one current.
GB507241A 1941-04-18 1941-04-18 Improvements in or relating to electric instrument relays Expired GB548712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB507241A GB548712A (en) 1941-04-18 1941-04-18 Improvements in or relating to electric instrument relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB507241A GB548712A (en) 1941-04-18 1941-04-18 Improvements in or relating to electric instrument relays

Publications (1)

Publication Number Publication Date
GB548712A true GB548712A (en) 1942-10-21

Family

ID=9789228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB507241A Expired GB548712A (en) 1941-04-18 1941-04-18 Improvements in or relating to electric instrument relays

Country Status (1)

Country Link
GB (1) GB548712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598847A (en) * 1944-04-21 1952-06-03 Sangamo Electric Co Instrument type switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598847A (en) * 1944-04-21 1952-06-03 Sangamo Electric Co Instrument type switch

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