Automatic stop for turntable tone arm
US4166625A · kind A · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1978 |
| Grant date | Sep 4, 1979 |
| Priority date | — |
| Expiry date | Jun 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B3/08506
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A phonograph turntable having a tone arm cueing mechanism is provided with a switch arrangement for activating the cueing mechanism and stopping the phonograph when the tone arm reaches the end of the information bearing groove of a record. The switch arrangement includes a reed switch and magnet one of which is mounted to move with the tone arm. The position of at least one of the reed switch and magnet may be varied to alter the position at which the cueing mechanism is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.