GB535593A - Improvements in or relating to dial mechanisms for automatic telephony - Google Patents
Improvements in or relating to dial mechanisms for automatic telephonyInfo
- 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
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.
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)
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)
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 |
-
0
- BE BE469033D patent/BE469033A/xx unknown
-
1939
- 1939-10-13 GB GB27844/39A patent/GB535593A/en not_active Expired
-
1946
- 1946-09-27 FR FR933988D patent/FR933988A/en not_active Expired
- 1946-11-09 US US709035A patent/US2543014A/en not_active Expired - Lifetime
-
1947
- 1947-02-21 CH CH263439D patent/CH263439A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE469033A (en) | |
CH263439A (en) | 1949-08-31 |
FR933988A (en) | 1948-05-07 |
US2543014A (en) | 1951-02-27 |
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