GB190608173A - Improvements in and relating to Telephone Apparatus. - Google Patents
Improvements in and relating to Telephone Apparatus.Info
- Publication number
- GB190608173A GB190608173A GB190608173DA GB190608173A GB 190608173 A GB190608173 A GB 190608173A GB 190608173D A GB190608173D A GB 190608173DA GB 190608173 A GB190608173 A GB 190608173A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pieces
- core
- pole
- winding
- telephone apparatus
- 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
Landscapes
- Telephone Set Structure (AREA)
Abstract
8173. Bines, R. April 4. Telephone systems.-Relates to arrangements of telephone apparatus for preventing the disturbing effects due to induction. The microphone A, Fig. 2, is in circuit with the primary winding on the core N, the secondary O of which is connected to the line-wires F. The receiver B is in circuit with a winding 0<1> on a separate core P, the pole-pieces of which may be insulated from the core N by air-gaps P<1>. In the modified system shown in Fig. 1, the microphone is connected to two primaries D<1>, E<1> wound in multiple on the cores D, E. The secondaries D<2>, E' are connected in series with the line-wires F. The receiver B is in series with the winding on the third core G. The pole-pieces H, I, J are separated by pieces of magnetic insulating material L. The cores D, E are so wound that the pole-pieces at the same ends are of like polarity.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190608173T | 1906-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190608173A true GB190608173A (en) | 1906-10-18 |
Family
ID=32545492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190608173D Expired GB190608173A (en) | 1906-04-04 | 1906-04-04 | Improvements in and relating to Telephone Apparatus. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190608173A (en) |
-
1906
- 1906-04-04 GB GB190608173D patent/GB190608173A/en not_active Expired
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