GB806028A - Improvements in or relating to electro-magnetic selecting devices - Google Patents
Improvements in or relating to electro-magnetic selecting devicesInfo
- Publication number
- GB806028A GB806028A GB37710/56A GB3771056A GB806028A GB 806028 A GB806028 A GB 806028A GB 37710/56 A GB37710/56 A GB 37710/56A GB 3771056 A GB3771056 A GB 3771056A GB 806028 A GB806028 A GB 806028A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- relays
- winding
- current
- windings
- 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
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/22—Switches without multi-position wipers
- H01H67/32—Switches without multi-position wipers having a multiplicity of interdependent armatures operated in succession by a single coil and each controlling one contact or set of contacts, e.g. counting relay
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radio Relay Systems (AREA)
Abstract
806,028. Automatic - exchange systems; magnetic amplifiers. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Dec. 10, 1956 [Dec. 8, 1955], No. 37710/56. Classes 40 (4) and 40 (9). In a system for selecting one out of a number of calling lines, or one out of a number of routes to be taken by a telephone call through an exchange, each line or route is associated with a magneto-static relay, the energization of any one of these operating a pilot relay which locks out all the other relays. The magneto-static relays are provided with three control windings and a biassing winding the control ampereturns (NIc)/out (Is) characteristic being as shown in Fig. 7. The relays R1 . . . Rn are arranged as shown in Fig. 4. Available routes or calling lines are marked by energizing corresponding windings R11 ... Rn1 of the relays. Thus, supposing both R21 and R31 are energized-then relay R2, in operating, energizes the pilot relay B which in turn applies opposing current to all windings R12 . . . Rn2 of the relays to prevent any other relay except R2 operating. Furthermore, relay R2 energizes opposing windings R33 ... Rn3 in all succeeding relays to establish priority for R2. In Fig. 7, P1 represents the condition of the first choice relay R2 when the control current is applied to winding R21. Subsequent application by the pilot relay of the current to winding R22 brings the point back to P2, the relay still remaining operated. Any relay whose winding R11, say, is operated after the application of current to winding R12 will be represented by P3 and remain unoperated. Point P4 represents the state of a relay, say R3, succeeding R2 in which the current in winding R31 is opposed by current in both of windings R32, R33.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1138493T | 1955-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB806028A true GB806028A (en) | 1958-12-17 |
Family
ID=9641149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37710/56A Expired GB806028A (en) | 1955-12-08 | 1956-12-10 | Improvements in or relating to electro-magnetic selecting devices |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH335721A (en) |
| FR (1) | FR1138493A (en) |
| GB (1) | GB806028A (en) |
-
1955
- 1955-12-08 FR FR1138493D patent/FR1138493A/en not_active Expired
-
1956
- 1956-11-24 CH CH335721D patent/CH335721A/en unknown
- 1956-12-10 GB GB37710/56A patent/GB806028A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH335721A (en) | 1959-01-31 |
| FR1138493A (en) | 1957-06-14 |
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