GB823310A - Improvements in or relating to record player change speed gears - Google Patents
Improvements in or relating to record player change speed gearsInfo
- Publication number
- GB823310A GB823310A GB13891/57A GB1389157A GB823310A GB 823310 A GB823310 A GB 823310A GB 13891/57 A GB13891/57 A GB 13891/57A GB 1389157 A GB1389157 A GB 1389157A GB 823310 A GB823310 A GB 823310A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bracket
- aperture
- pin
- disc
- shaft
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/46—Gearings providing a discontinuous or stepped range of gear ratios
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
Abstract
823,310. Change-speed gear. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 1, 1957 [May 4, 1956], No. 13891/57. Class 80 (2). [Also in Group XXXVIII] Relates to a gramophone change-speed gear of the type comprising a stepped driving-wheel 4 engaged by a friction idler disc 2 mounted on a lever 5 supported on a bracket 6 pivoting on a shaft 8, the idler disc 2 engaging the rim of a turntable 1. A spring 3 biases the idler disc 2 to engage the stepped driving wheel 4 and the turntable rim. A flange 11 on the bracket 6 is adapted to be engaged by a coned disc 13 when a push-button 12 is depressed. Such operation of the push-button 12 causes the coned disc 13 and flange 11 to coact in such a way that the bracket 6 &c. is first turned slightly against the bias of the spring 3 to disengage the idler disc 2 from the steps on the driving wheel 4. Further depression of the push-button then forces the bracket 6 downwardly of Fig. 3 against the bias of a spring 10 on its supporting shaft 8. The bracket 6 is formed with a curved indexing plate 15, Fig. 1, having an aperture 16 shaped as shown in Fig. 6, and co-operating with a pin 17 passed transversely through the shaft 8. Downward movement of the bracket 6 and the indexing plate 15 causes the upper edge of the aperture 16 to coact with the pin 17 and turn the shaft 8 anti-clockwise of Fig. 1. On releasing the push-button, the bracket 6 &c. is pushed upwardly by its spring 10 so that the lower surface of the aperture 16 re-engages the pin 17. The lower surface 18-20 of the aperture 16 is so shaped that the bracket 6 &c. returns to a different position axially of the shaft 8. Accordingly the idler disc 2 engages a different step on the driving friction wheel 4, and the gear gives a different ratio. When one end of the pin 17 leaves the end 20 of the aperture 16, the other end of the pin enters the opposite end of the aperture. A speed indicating disc 24 is secured to the end of the shaft 8. As a modification, the pin 17 may be arranged to be moved initially against spring bias, the indexing plate then turning on release of the pushbutton.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL823310X | 1956-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB823310A true GB823310A (en) | 1959-11-11 |
Family
ID=19840943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13891/57A Expired GB823310A (en) | 1956-05-04 | 1957-05-01 | Improvements in or relating to record player change speed gears |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB823310A (en) |
-
1957
- 1957-05-01 GB GB13891/57A patent/GB823310A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1510844A (en) | Castors | |
| GB1536367A (en) | Clutch release bearing | |
| GB823310A (en) | Improvements in or relating to record player change speed gears | |
| GB1250426A (en) | ||
| US2588807A (en) | Change-speed friction drive for record changers | |
| GB889437A (en) | Improvements in or relating to speed changing mechanism | |
| GB1356491A (en) | Record changer | |
| GB1340311A (en) | Electric or electronic timepiece | |
| GB714813A (en) | Change-speed friction driving device for gramophone turn-tables | |
| GB615158A (en) | Improvements in or relating to gramophones | |
| ES430496A1 (en) | Record player | |
| GB884819A (en) | Improvements in or relating to multi-speed drive mechanisms | |
| US2926536A (en) | Multiple speed phonograph turntable drive mechanism | |
| GB1534058A (en) | Record disc recording and/or transcribing machine | |
| US3047296A (en) | Device for altering phonograph speed | |
| US2965377A (en) | Automatic phonograph tripping mechanism | |
| GB882512A (en) | Record magazine and drive thereofor | |
| JPS645266Y2 (en) | ||
| GB1235268A (en) | Improvements relating to push-push electrical switches | |
| GB1007277A (en) | Improvements in and relating to disc gramophone record players | |
| GB818590A (en) | Improvements in or relating to gramophone record players | |
| GB793966A (en) | An improved gramophone and automatic record changing mechanism | |
| GB696481A (en) | Improvements relating to variable speed driving mechanisms | |
| GB878888A (en) | Record player with automatic cut-out device | |
| JPS56117354A (en) | Operating device for tape recorder |