GB331477A - Improvements in and relating to gramophones - Google Patents
Improvements in and relating to gramophonesInfo
- Publication number
- GB331477A GB331477A GB846629A GB846629A GB331477A GB 331477 A GB331477 A GB 331477A GB 846629 A GB846629 A GB 846629A GB 846629 A GB846629 A GB 846629A GB 331477 A GB331477 A GB 331477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- gramophone
- turntable
- record
- external device
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
331,477. Roberts, J. H. T. Aug. 8, 1929. Divided on 331,267. Driving; turntables; sound-reproducing apparatus associated with kinematographs. - Means for running a gramophone in synchronism with a kinematograph or for driving the gramophone from an external device, such as an electric motor, consists of a horizontal record-carrying disc c provided with gearing g, h mounted below the disc and operatively connected with a shaft j which is linked with the kinematograph or other external device, such means being adapted to be mounted upon a gramophone turntable a. The gears g, h may be disposed between two discs c, d, the lower disc d being mounted on the turntable and adapted to engage the spindle b. If desired, the two discs may be rigidly connected by a solid member e on which the gear wheel g is mounted. The gear wheel h is attached to the shaft j which rotates within a tube k connected with a box m enclosing the gear wheels g, h. The member e has a projection constituting the record-engaging spindle. In this construction, the external device referred to above may be an electric motor connected with the shaft j so as to assist the power of the gramophone machine. In an alternative construction, the upper disc c, member e, and gear wheel g, are integrally connected and rotate independently of the lower disc d and turntable, which latter parts may then remain stationary while the other parts and record on the disc c are rotated from an external source of power. The upper surface of the disc c and the lower surface of the disc d may be covered with felt &c. The Provisional Specification describes the lower disc as constituted by the supplementary turntable described in Specification 331,242.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB846629A GB331477A (en) | 1929-08-08 | 1929-08-08 | Improvements in and relating to gramophones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB846629A GB331477A (en) | 1929-08-08 | 1929-08-08 | Improvements in and relating to gramophones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB331477A true GB331477A (en) | 1930-07-03 |
Family
ID=9853004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB846629A Expired GB331477A (en) | 1929-08-08 | 1929-08-08 | Improvements in and relating to gramophones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB331477A (en) |
-
1929
- 1929-08-08 GB GB846629A patent/GB331477A/en not_active Expired
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