GB182956A - Improvements in or relating to telephone hand sets - Google Patents
Improvements in or relating to telephone hand setsInfo
- Publication number
- GB182956A GB182956A GB1142721A GB1142721A GB182956A GB 182956 A GB182956 A GB 182956A GB 1142721 A GB1142721 A GB 1142721A GB 1142721 A GB1142721 A GB 1142721A GB 182956 A GB182956 A GB 182956A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- dial
- casing
- studs
- springs
- 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
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
182,956. Western Electric Co., Ltd., and Deakin, G. April 20, 1921. Hand - combination sets. - A telephone hand-set is provided with a dial-switch, detachably secured thereto, the means for securing also serving to cause the dial switch, when in the operative position, to be connected electrically to the hand-set. As shown in Fig. 1, the dial. switch 15 is secured to bosses 16 of a casing 17, which is provided with a pair of hollow studs 18 held in position by nuts 19. Through the studs, but insulated therefrom, pass pins 21 held in position by the nuts 22. To attach the dial switch to the instrument, the studs 18 are pushed through the rounded ends 26 of the slots 25, Fig. 5, in the front plate of the stem 1, and the casing 17 is then pushed down. In this position the front plate fits between the shoulders upon the studs 18 and the casing 17, and the end 9 of a spring 8 passes through the slot 24 to lock the casing on the stem. Also the pins 21 engage springs 12 and so connect the dial switch in series with the transmitter and receiver. When the switch is detached, the disengagement of the pins 21 from the springs 12 permits the springs 11, 12 to con. tact and closes the circuit of the transmitter and receiver, so that the instrument may be used as an ordinary telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1142721A GB182956A (en) | 1921-04-20 | 1921-04-20 | Improvements in or relating to telephone hand sets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1142721A GB182956A (en) | 1921-04-20 | 1921-04-20 | Improvements in or relating to telephone hand sets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB182956A true GB182956A (en) | 1922-07-20 |
Family
ID=9986024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1142721A Expired GB182956A (en) | 1921-04-20 | 1921-04-20 | Improvements in or relating to telephone hand sets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB182956A (en) |
-
1921
- 1921-04-20 GB GB1142721A patent/GB182956A/en not_active Expired
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