GB345297A - Improvements in automatic talking machines - Google Patents
Improvements in automatic talking machinesInfo
- Publication number
- GB345297A GB345297A GB3853829A GB3853829A GB345297A GB 345297 A GB345297 A GB 345297A GB 3853829 A GB3853829 A GB 3853829A GB 3853829 A GB3853829 A GB 3853829A GB 345297 A GB345297 A GB 345297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- pick
- shaft
- automatic
- record
- 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
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
345,297. Gramophones. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and THOMPSETT, H. A., 26, Castlebar Park, Ealing, London. Dec. 16, 1929, No. 38538. [Class 40 (ii).] Controlling pick-up circuit.-Automatic gramophones having a single turntable and electric pick-up, and in which an automatic cycle of operations is necessary in order to change or replace a record, have a shortcircuiting switch 11, 12 in the electrical circuit of the pick-up or amplifier which switch is normally closed when the shaft 1 which effects the cycle of operations is rotating. Undesirable noises in the loud-speaker are thereby avoided. When, however, the shaft 1 has made a complete rotation and is stopped in the position shown during the playing of a record, a cam 14 on the shaft 1 engages with the switch-arm 13 and opens the switch to permit the pick-up or the like to function. The invention is shown applied to a magazine gramophone of the kind described in Specification 317,357, [Class 40 (ii), Phonographs &c.].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3853829A GB345297A (en) | 1929-12-16 | 1929-12-16 | Improvements in automatic talking machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3853829A GB345297A (en) | 1929-12-16 | 1929-12-16 | Improvements in automatic talking machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB345297A true GB345297A (en) | 1931-03-16 |
Family
ID=10404120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3853829A Expired GB345297A (en) | 1929-12-16 | 1929-12-16 | Improvements in automatic talking machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB345297A (en) |
-
1929
- 1929-12-16 GB GB3853829A patent/GB345297A/en not_active Expired
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