GB857475A - Improvements in or relating to electro-magnetic devices - Google Patents

Improvements in or relating to electro-magnetic devices

Info

Publication number
GB857475A
GB857475A GB1630058A GB1630058A GB857475A GB 857475 A GB857475 A GB 857475A GB 1630058 A GB1630058 A GB 1630058A GB 1630058 A GB1630058 A GB 1630058A GB 857475 A GB857475 A GB 857475A
Authority
GB
United Kingdom
Prior art keywords
arms
attached
electro
relating
magnetic devices
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
GB1630058A
Inventor
Grahame Granville Haigh
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1630058A priority Critical patent/GB857475A/en
Publication of GB857475A publication Critical patent/GB857475A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

857,475. Electromagnetic switches. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 20, 1959 [May 21, 1958], No. 16300/58. Class 38 (5). [Also in Group XXXV] In an electromagnetic device, where movement of armatures A attached to arms R causes step-by-step rotation of a wheel T by pawl d (see Group XXXV), electrical contacts may be mounted on the armatures and arms for engagement with associated fixed contacts. The arms R are pivotally attached to a lever L loosely mounted on the shaft S of the device. Contacts may also be attached to the lever.
GB1630058A 1958-05-21 1958-05-21 Improvements in or relating to electro-magnetic devices Expired GB857475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1630058A GB857475A (en) 1958-05-21 1958-05-21 Improvements in or relating to electro-magnetic devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1630058A GB857475A (en) 1958-05-21 1958-05-21 Improvements in or relating to electro-magnetic devices

Publications (1)

Publication Number Publication Date
GB857475A true GB857475A (en) 1960-12-29

Family

ID=10074830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1630058A Expired GB857475A (en) 1958-05-21 1958-05-21 Improvements in or relating to electro-magnetic devices

Country Status (1)

Country Link
GB (1) GB857475A (en)

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