GB336684A - Improvements in or relating to apparatus for driving gramophone records - Google Patents
Improvements in or relating to apparatus for driving gramophone recordsInfo
- Publication number
- GB336684A GB336684A GB2260729A GB2260729A GB336684A GB 336684 A GB336684 A GB 336684A GB 2260729 A GB2260729 A GB 2260729A GB 2260729 A GB2260729 A GB 2260729A GB 336684 A GB336684 A GB 336684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flywheel
- pins
- blocks
- coupling
- given amount
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/60—Turntables for record carriers
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
336,684. Harris, A. W. July 23, 1929. Securing flywheels on shafts.-In the trans mission train from a prime mover to a gramophone turntable, a massive element smoothes out the relatively small vibratory variations in the driving effort by the effect of inertia and a resilient coupling smoothes out the relatively large vibratory variations, the resilient coupling being rigid when transmitting torques below a given amount. The drive from the prime mover is transmitted by a worm 3 and worm-wheel 4. The latter has two pins 5 passing through arcuate slots 6 in a flywheel 1. The upper face of the flywheel 1 has a circular channel 7 in which two pairs of blocks 8 are slidable, the blocks of each pair being forced towards one another and against stops 9 on the flywheel 1 by springs 10. The end of each block 8 adjacent each pin 5 has a semi-circular recess to clear the pins. For torques below a given amount the coupling transmits solidly, the blocks 8 remaining hard up against the pins 5. When the torque increases above the given amount the normal tension of the springs is exceeded and the coupling becomes resilient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2260729A GB336684A (en) | 1929-07-23 | 1929-07-23 | Improvements in or relating to apparatus for driving gramophone records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2260729A GB336684A (en) | 1929-07-23 | 1929-07-23 | Improvements in or relating to apparatus for driving gramophone records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB336684A true GB336684A (en) | 1930-10-23 |
Family
ID=10182168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2260729A Expired GB336684A (en) | 1929-07-23 | 1929-07-23 | Improvements in or relating to apparatus for driving gramophone records |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB336684A (en) |
-
1929
- 1929-07-23 GB GB2260729A patent/GB336684A/en not_active Expired
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