GB722860A - Improvements in or relating to electromagnetic switching devices - Google Patents

Improvements in or relating to electromagnetic switching devices

Info

Publication number
GB722860A
GB722860A GB2566852A GB2566852A GB722860A GB 722860 A GB722860 A GB 722860A GB 2566852 A GB2566852 A GB 2566852A GB 2566852 A GB2566852 A GB 2566852A GB 722860 A GB722860 A GB 722860A
Authority
GB
United Kingdom
Prior art keywords
armature
track
energization
magnet
pin
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
GB2566852A
Inventor
Eric Innes Houghton
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric 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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB2566852A priority Critical patent/GB722860A/en
Priority to FR1085151D priority patent/FR1085151A/en
Publication of GB722860A publication Critical patent/GB722860A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/085—Controlling traffic signals using a free-running cyclic timer
    • 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
    • H01H51/084—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 with axial ratchet elements

Abstract

722,860. Ratchet gearing. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Sept. 25, 1953 [Oct. 14, 1952], No. 25668/52. Class 80 (3) [Also in Group XXXVII]. A plunger armature 22 of an electromagnetic switch (see Group XXXVII) which moves axially to the left against the action of a spring 19 when the magnet is energized, has a collar 24 provided with a circumferential cam track 25 of zig-zag form, the track co-operating with the smallerdiameter inner end of a fixed silver steel pin 28. The teeth comprising the opposed walls of the track 25 are so formed (Fig. 3) that when the armature 22 moves to the left the pin 28 causes rotation of the armature (clockwise when viewed from the right of Fig. 1), and on de-energization of the magnet to permit the armature to be returned by the spring 19 the pin 28 causes further rotation of the armature in the same direction. As shown, each wall of the track 25 has six teeth so that for each cycle comprising one energization and on de-energization of the magnet, the armature 22 is rotated through 60 degrees.
GB2566852A 1952-10-14 1952-10-14 Improvements in or relating to electromagnetic switching devices Expired GB722860A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2566852A GB722860A (en) 1952-10-14 1952-10-14 Improvements in or relating to electromagnetic switching devices
FR1085151D FR1085151A (en) 1952-10-14 1953-10-14 Improvements to electromagnetic control switches or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2566852A GB722860A (en) 1952-10-14 1952-10-14 Improvements in or relating to electromagnetic switching devices

Publications (1)

Publication Number Publication Date
GB722860A true GB722860A (en) 1955-02-02

Family

ID=10231389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2566852A Expired GB722860A (en) 1952-10-14 1952-10-14 Improvements in or relating to electromagnetic switching devices

Country Status (2)

Country Link
FR (1) FR1085151A (en)
GB (1) GB722860A (en)

Also Published As

Publication number Publication date
FR1085151A (en) 1955-01-28

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