GB873813A - Improvements in and relating to magnetic switches - Google Patents

Improvements in and relating to magnetic switches

Info

Publication number
GB873813A
GB873813A GB1466759A GB1466759A GB873813A GB 873813 A GB873813 A GB 873813A GB 1466759 A GB1466759 A GB 1466759A GB 1466759 A GB1466759 A GB 1466759A GB 873813 A GB873813 A GB 873813A
Authority
GB
United Kingdom
Prior art keywords
magnet
arm
electromagnet
energized
stud
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
GB1466759A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB873813A publication Critical patent/GB873813A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/008—Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature
    • 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
    • G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
    • G01D5/251—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel
    • G01D5/2515—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts one conductor or channel with magnetically controlled switches, e.g. by movement of a magnet

Landscapes

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

Abstract

873,813. Magnetic switches. BAUMGARTNER, F., [trading as BAUMGARTNER FABRIK ELEKTR. APPARATE, FRANZ]. April 29, 1959 [April 30, 1958], No. 14667/59. Class 38 (5). In a switch for operation by a magnetic shield passing between a magnet and a magnetic contact device the latter has a resilient magnetizable moving contact arm in a sealed envelope. In Fig. 4, a housing 9 is provided with a slot 17 between a permanent magnet 28 and a sealed glass tube 20 containing a fixed contact 25 and movable contact 23 on a resilient arm 24 carrying an iron stud 26. When an iron shield (not shown) is inserted in the slot 17 the stud 26 is no longer attracted to a polepiece 27 sealed in the wall of the tube 20 so that the contacts 23, 25 engage. In Fig. 6, an auxiliary permanent magnet 29 in the form of an annular ring surrounding the polepiece 27 is axially polarized in the opposite direction to the main magnet 28 and assists the magnet 28 in attracting the stud 26 and arm 24 so that a smaller main magnet 28 is required and the spring arm 24 may be stiffer to resist vibration. Polepieces 30 help to concentrate the flux in the contact area. Normally open or normally closed contacts may be provided. A coil may when energized overcome the bias of the auxiliary magnet 29 and prevent relay operation or alternatively the magnet 29 may be an electromagnet so that the relay will not operate when the electromagnet is de-energized. The magnet 28 may also be an electromagnet and both electromagnets may be energized by A.C.
GB1466759A 1958-04-30 1959-04-29 Improvements in and relating to magnetic switches Expired GB873813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1958B0048763 DE1276169B (en) 1958-04-30 1958-04-30 Magnetic switch

Publications (1)

Publication Number Publication Date
GB873813A true GB873813A (en) 1961-07-26

Family

ID=6968681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1466759A Expired GB873813A (en) 1958-04-30 1959-04-29 Improvements in and relating to magnetic switches

Country Status (4)

Country Link
BE (1) BE578166A (en)
CH (1) CH370141A (en)
DE (2) DE1276169B (en)
GB (1) GB873813A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203436B (en) * 1963-10-18 1965-10-21 Schaltgeraetebau W Nunn Magnetically operated floor switch for elevators
DE1295050B (en) * 1965-01-21 1969-05-14 Laeis Werke Ag Proximity switch for signaling when a part to be monitored is approaching
DE3410698A1 (en) * 1984-03-23 1985-09-26 Bayerische Motoren Werke AG, 8000 München Brake-light switch for motor vehicles

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE623654C (en) *
DE510928C (en) * 1928-01-01 1930-10-24 Aeg Train protection device
DE491421C (en) * 1928-10-10 1930-02-10 Siemens Schuckertwerke Akt Ges Contactor for counter
GB473589A (en) * 1937-04-30 1937-10-15 Henry Greenly Improvements in or relating to electric contact making relays
GB491114A (en) * 1937-08-04 1938-08-26 Henry Greenly Improvements in or relating to electric contact making relays
US2406021A (en) * 1941-07-01 1946-08-20 Bell Telephone Labor Inc Sealed reed contact device
CH279428A (en) * 1950-03-25 1951-11-30 Haushahn Fa C Magnetically operated electrical auxiliary switching devices, in particular for elevators.
CH278392A (en) * 1951-11-27 1951-10-15 Thomann Ferdinand Magnetically operated vacuum switch.
DE1023115B (en) * 1954-05-08 1958-01-23 Bopp & Reuther Gmbh Contact control by jumping magnet
DE1010138B (en) * 1954-12-23 1957-06-13 Standard Elektrik Ag Electric switch with magnetic actuation
DE1031487B (en) * 1955-11-22 1958-06-04 Gotthilf Bauer & Co Aufzugfabr Magnetic switch for elevators

Also Published As

Publication number Publication date
CH370141A (en) 1963-06-30
DE1129208B (en) 1962-05-10
DE1276169B (en) 1968-08-29
BE578166A (en) 1959-08-17

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