GB787108A - An improved automatic stopping device for gramophones - Google Patents
An improved automatic stopping device for gramophonesInfo
- Publication number
- GB787108A GB787108A GB1919/56A GB191956A GB787108A GB 787108 A GB787108 A GB 787108A GB 1919/56 A GB1919/56 A GB 1919/56A GB 191956 A GB191956 A GB 191956A GB 787108 A GB787108 A GB 787108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- levers
- pick
- lever
- pins
- 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
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
Landscapes
- Transmission Devices (AREA)
Abstract
787,108. Gramophones; stopping devices. MALATESTA, R. Jan. 20, 1956 [July 26, 1955], No. 1919/56. Class 40 (2). Two opposed trigger levers 3 connected to the motor switch and positioned one on each side of a cam 2 rotating with the turntable spindle 1 are lightly frictionally coupled to each other and to the gramophone pick-up so as to be capable of being shifted simultaneously away from or towards the cam 2, the coupling allowing independent movement of the levers. A slide 12 connected to the pick-up moves to the right as the pick-up travels towards the centre of the record and rotates pins 4 by means of levers 111 connected by a rod 13. The pins 4 have tapered points mounted in bearings, and each lever 3 is frictionally connected to a pin 4 by resting on a Range with interposition of a paper disc and is counter-weighted at 9. During the final runout of the pick-up, inclined surfaces on the cam 2 engage under the ends of the levers which thereupon tilt about the pins 4 and raise a bracket 10 whereby the motor switch is operated. The levers 3 are reset during the final part of the return of the pick-up by means of catches 14 on levers 211. To prevent the levers 3 from slipping off the cam a groove on the cam engages a tooth 103 on each lever or vice versa. Should it so happen that one lever 3 engages the cam 2 in such a position that the lever instead of being raised is pushed back the other lever engages the lobe of the cam after half a turn.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT787108X | 1955-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB787108A true GB787108A (en) | 1957-12-04 |
Family
ID=11316558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1919/56A Expired GB787108A (en) | 1955-07-26 | 1956-01-20 | An improved automatic stopping device for gramophones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB787108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5748606A (en) * | 1991-06-06 | 1998-05-05 | Matsushita Electric Industrial Co., Ltd. | Optical disc player device with a vibration prevention mechanism |
-
1956
- 1956-01-20 GB GB1919/56A patent/GB787108A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5748606A (en) * | 1991-06-06 | 1998-05-05 | Matsushita Electric Industrial Co., Ltd. | Optical disc player device with a vibration prevention mechanism |
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