GB690817A - Improvements in or relating to automatic stop mechanisms for electrically operated record reproducers - Google Patents
Improvements in or relating to automatic stop mechanisms for electrically operated record reproducersInfo
- Publication number
- GB690817A GB690817A GB407250A GB407250A GB690817A GB 690817 A GB690817 A GB 690817A GB 407250 A GB407250 A GB 407250A GB 407250 A GB407250 A GB 407250A GB 690817 A GB690817 A GB 690817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- feeler
- projection
- tone
- spindle
- 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
- Moving Of Heads (AREA)
Abstract
690,817. Gramophones; starting and stopping. HUTCHINGS, E. L. Feb. 19, 1951 [Feb. 17, 1950]. No. 4072/50. Class 40 (ii). As the tone-arm advances across a record, an arm W on the tone-arm pivot U gradually moves an arm B towards the turntable spindle T. An arm L is slidably. mounted on the arm B by screws K engaging slots O, and a spring N holds the arm L against a projection E on the arm B. A feeler P is so mounted on the arm L that it has a limited longitudinal movement. When the tonearm reaches the "run-off" groove the arm B and therefore the arm L and feeler P are moved quickly towards the spindle T, and a projection S on the spindle strikes the feeler and moves it laterally. This movement frees the arm L from the projection E and allows the spring N to pull the arm L back and thus disengage a switch element M on the arm L from a corresponding switch element J on the arm B, to stop the driving motor. The feeler P is automatically re-set during the opening of the switch by a stud Q on the base plate which engages a lip on the end of the feeler. The switch is re-set by moving the tone-arm to a position beyond its initial position which causes an arm X to engage a lip H on the arm B and move the arm back until. the projection E engages the arm L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB407250A GB690817A (en) | 1950-02-17 | 1950-02-17 | Improvements in or relating to automatic stop mechanisms for electrically operated record reproducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB407250A GB690817A (en) | 1950-02-17 | 1950-02-17 | Improvements in or relating to automatic stop mechanisms for electrically operated record reproducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB690817A true GB690817A (en) | 1953-04-29 |
Family
ID=9770206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB407250A Expired GB690817A (en) | 1950-02-17 | 1950-02-17 | Improvements in or relating to automatic stop mechanisms for electrically operated record reproducers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB690817A (en) |
-
1950
- 1950-02-17 GB GB407250A patent/GB690817A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB690817A (en) | Improvements in or relating to automatic stop mechanisms for electrically operated record reproducers | |
| GB660572A (en) | Phonograph apparatus | |
| GB823749A (en) | Improvements in and relating to sound reproducing apparatus | |
| GB572688A (en) | Improvements relating to gramophones, radiograms and the like | |
| US1895004A (en) | Control device for phonographs | |
| GB616469A (en) | Improvements relating to gramophones and the like | |
| GB638483A (en) | Automatic stop and record-changer mechanism for gramophones | |
| GB663790A (en) | Improvements in or relating to control mechanism for gramophone record playing apparatus | |
| GB918660A (en) | Improvements in or relating to gramophone record playing apparatus | |
| GB820016A (en) | Gramophone pick-up arm device | |
| US1382544A (en) | Automatic stop for phonographs | |
| GB533356A (en) | Improvements in or relating to apparatus for playing gramophone records | |
| GB839666A (en) | Improvements in and relating to automatic talking machines | |
| GB607280A (en) | Improvements relating to sound reproducing apparatus | |
| GB195816A (en) | Improvements in or relating to talking machines | |
| GB698558A (en) | Improvements in or relating to talking machines | |
| GB475793A (en) | Stop-and-start mechanism for use in connection with gramophones or the like | |
| GB639442A (en) | Automatic phonograph mechanism | |
| GB1488498A (en) | Apparatus for automatically returning a pick-up arm in a record player | |
| GB759313A (en) | Gramophone record player with pick-up arm movement to the record derived from the turntable drive | |
| GB337512A (en) | Improvements in and relating to sound-reproducing apparatus | |
| GB1252067A (en) | ||
| GB457691A (en) | Apparatus for the automatic stopping of gramophones and the like | |
| GB655985A (en) | Improvements in or relating to apparatus for playing gramophone records | |
| GB711689A (en) | Improvements in or relating to stop means for gramophone turn-tables |