GB487343A - Improvements relating to telephone receivers - Google Patents
Improvements relating to telephone receiversInfo
- Publication number
- GB487343A GB487343A GB3490536A GB3490536A GB487343A GB 487343 A GB487343 A GB 487343A GB 3490536 A GB3490536 A GB 3490536A GB 3490536 A GB3490536 A GB 3490536A GB 487343 A GB487343 A GB 487343A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- rectifier
- rectifiers
- actuating
- 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
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
Abstract
487,343. Receivers. BEHRENS, T. A., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Dec. 18, 1936, No. 34905. [Class 40 (iv)] [Also in Group XXXVI] In a telephone receiver a rectifier of the dry surface contact type is connected across the actuating winding and is accommodated within the earpiece receiver. In a modification, two rectifiers d, f are oppositely connected in parallel across the actuating winding a, and in the embodiment shown in Fig. 3 the rectifiers are provided with conducting strips o which are secured beneath the terminals b, c of the windings a. In a further modification a single rectifier unit with a centre tap is connected so that the halves of the unit are oppositely connected across the actuating windings. The rectifier comprises a number of disc rectifier elements i separated from the turned over end m of a suitably lined casing g by an insulating disc k<1> and pressed against contact disc n<1> by a spring j which is engaged by a contact disc n<2> separated from the opposite end of the casing by a second insulating disc k<2>.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3490536A GB487343A (en) | 1936-12-18 | 1936-12-18 | Improvements relating to telephone receivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3490536A GB487343A (en) | 1936-12-18 | 1936-12-18 | Improvements relating to telephone receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB487343A true GB487343A (en) | 1938-06-20 |
Family
ID=10371350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3490536A Expired GB487343A (en) | 1936-12-18 | 1936-12-18 | Improvements relating to telephone receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB487343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE963895C (en) * | 1945-01-26 | 1957-06-06 | Siemens Ag | Process for the production of a tubular housing from thermoplastic organic material for electrical components, in particular dry rectifiers |
| GB2152785A (en) * | 1982-05-28 | 1985-08-07 | British Broadcasting Corp | Headphone level protection circuit |
-
1936
- 1936-12-18 GB GB3490536A patent/GB487343A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE963895C (en) * | 1945-01-26 | 1957-06-06 | Siemens Ag | Process for the production of a tubular housing from thermoplastic organic material for electrical components, in particular dry rectifiers |
| GB2152785A (en) * | 1982-05-28 | 1985-08-07 | British Broadcasting Corp | Headphone level protection circuit |
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