GB491010A - Improvements in apparatus making possible the permanent recording, automatically, of oral telephone conversations - Google Patents
Improvements in apparatus making possible the permanent recording, automatically, of oral telephone conversationsInfo
- Publication number
- GB491010A GB491010A GB395637A GB395637A GB491010A GB 491010 A GB491010 A GB 491010A GB 395637 A GB395637 A GB 395637A GB 395637 A GB395637 A GB 395637A GB 491010 A GB491010 A GB 491010A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recorded
- automatically
- making possible
- telephone conversations
- receiver
- 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
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Telephone Set Structure (AREA)
Abstract
491,010. Substation apparatus; sets. TAYLOR, P. F. Feb. 10, 1937, No. 3956. [Class 40 (iv)] In order that conversations may be recorded phonographically, a telephone set is provided with a hollow base which accommodates an auxiliary microphone 2 and optionally an auxiliary receiver 3 if the other party's speech is to be recorded, the front of the base being hinged and provided with a gauze covered opening 5. The circuit connecting the auxiliary microphone to the recording apparatus includes a contact 7, 10 which is closed by a spring-urged lever 6 normally held in an inoperative position by the weight of the hand instrument 13 of a cradle set or of the receiver of a pedestal set. The recording circuit is also controlled by a manually operated switch 14, and a pair of coloured lamps 15 indicate whether or not a conversation is being recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB395637A GB491010A (en) | 1937-02-10 | 1937-02-10 | Improvements in apparatus making possible the permanent recording, automatically, of oral telephone conversations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB395637A GB491010A (en) | 1937-02-10 | 1937-02-10 | Improvements in apparatus making possible the permanent recording, automatically, of oral telephone conversations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB491010A true GB491010A (en) | 1938-08-25 |
Family
ID=9768054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB395637A Expired GB491010A (en) | 1937-02-10 | 1937-02-10 | Improvements in apparatus making possible the permanent recording, automatically, of oral telephone conversations |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB491010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968968A (en) * | 2017-12-05 | 2018-04-27 | 广州优谷信息技术有限公司 | A kind of microphone recloser and its application method |
-
1937
- 1937-02-10 GB GB395637A patent/GB491010A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968968A (en) * | 2017-12-05 | 2018-04-27 | 广州优谷信息技术有限公司 | A kind of microphone recloser and its application method |
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