GB535593A - Improvements in or relating to dial mechanisms for automatic telephony - Google Patents

Improvements in or relating to dial mechanisms for automatic telephony

Info

Publication number
GB535593A
GB535593A GB27844/39A GB2784439A GB535593A GB 535593 A GB535593 A GB 535593A GB 27844/39 A GB27844/39 A GB 27844/39A GB 2784439 A GB2784439 A GB 2784439A GB 535593 A GB535593 A GB 535593A
Authority
GB
United Kingdom
Prior art keywords
armature
relating
dial
automatic telephony
magnetic
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
GB27844/39A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB535593A publication Critical patent/GB535593A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Linear Motors (AREA)

Abstract

535,593. Electromagnetic switches. STANDARD TELEPHONES & CABLES, Ltd., and GRACE, B. B. Oct. 13, 1939. No. 27844. [Class 38 (v)] [Also. in Group XXXIX] The impulse springs G, H of a dial are actuated by the armature F of a permanent or 'electromagnet B under the influence of magnetic pieces D carried by a non-magnetic spider on the main shaft A and moving between the armature and the magnet pole. Alternatively the magnetic pieces may divert the flux from the armature or the armature may be repelled by the magnet.
GB27844/39A 1939-10-13 1939-10-13 Improvements in or relating to dial mechanisms for automatic telephony Expired GB535593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB263439X 1939-10-13

Publications (1)

Publication Number Publication Date
GB535593A true GB535593A (en) 1941-04-15

Family

ID=10242184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27844/39A Expired GB535593A (en) 1939-10-13 1939-10-13 Improvements in or relating to dial mechanisms for automatic telephony

Country Status (5)

Country Link
US (1) US2543014A (en)
BE (1) BE469033A (en)
CH (1) CH263439A (en)
FR (1) FR933988A (en)
GB (1) GB535593A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770796A (en) * 1952-02-23 1956-11-13 Int Standard Electric Corp Registering device for receiving and sending connecting orders, particularly for conveying plants
US2827520A (en) * 1954-12-06 1958-03-18 Edward L Klingel Telephone calling device
US2827531A (en) * 1955-05-31 1958-03-18 North American Aviation Inc Magnetically operated switch
US2843698A (en) * 1955-10-11 1958-07-15 Berthold A Knauth Switch mechanism
US2834838A (en) * 1956-10-03 1958-05-13 Edward L Klingel Telephone calling device
US2896043A (en) * 1957-02-11 1959-07-21 Stackpole Carbon Co Electric switch formed from magnets
NL235133A (en) * 1958-01-17
US3061687A (en) * 1958-04-16 1962-10-30 Gen Dynamics Corp Magnetic dial impulse transmitter
US3013137A (en) * 1958-07-14 1961-12-12 Cons Electrodynamics Corp Magnetic switch
US2985734A (en) * 1959-04-27 1961-05-23 Oak Mfg Co Magnet control means

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870032A (en) * 1932-08-02 Arthur peimeose young
GB545818A (en) * 1900-01-01
US1839075A (en) * 1931-12-29 Electric contact breaker
GB124041A (en) * 1918-03-12 1919-03-12 British Thomson Houston Co Ltd Improvements in and relating to Electrical Contact Making and Breaking Apparatus.
US1852232A (en) * 1929-07-15 1932-04-05 Buchhold Theodor Rotating magnet
DE628014C (en) * 1930-11-30 1936-03-27 Siemens Schuckertwerke Akt Ges Contactor for measuring devices for remote measurement, especially for electricity meters
US1874199A (en) * 1931-05-14 1932-08-30 Frank R Uible Advertising device
US1969926A (en) * 1932-07-28 1934-08-14 M L Jeffrey Corp Dial and switch mechanism
US2189597A (en) * 1936-11-26 1940-02-06 Express Lift Co Ltd Electric inductor relay
US2384948A (en) * 1940-12-09 1945-09-18 Automatic Elect Lab Telephone switch or telephone contact
US2410746A (en) * 1942-09-02 1946-11-05 Adele S Raettig Magnetically operated switch

Also Published As

Publication number Publication date
US2543014A (en) 1951-02-27
FR933988A (en) 1948-05-07
CH263439A (en) 1949-08-31
BE469033A (en)

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