Tangential pick-up device for a gramophone turn-table
US4268039A · kind A · utility
0Cited by
5References
4Claims
0Family size
Inventors
Key dates
| Filing date | Apr 16, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Apr 16, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B3/08532
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tangential pick-up device for a gramophone turn-table comprises a pick-up head on a support connected by a floating articulation to a carriage which is driven along a radially-disposed arm by a servo-control device to hold the support in a reference position. The floating articulation of the support, e.g. by a guided pivot member, is arranged so that shocks or vibrations tend to cause pivoting of the support about two axes disposed radial and perpendicular to a disc and intersecting adjacent the pick-up needle, whereby jumping of the needle is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.