GB580046A - Improvements in or relating to speed-reducing torque transmission gear - Google Patents
Improvements in or relating to speed-reducing torque transmission gearInfo
- Publication number
- GB580046A GB580046A GB197744A GB197744A GB580046A GB 580046 A GB580046 A GB 580046A GB 197744 A GB197744 A GB 197744A GB 197744 A GB197744 A GB 197744A GB 580046 A GB580046 A GB 580046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- follower
- drive
- armature
- cam
- stop
- 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
- F16H29/00—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
- F16H29/02—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
580,046. Ratchet gearing; stopping and starting machinery. STANDARD TELEPHONES & CABLES, Ltd., and FIELDING, E. C. Feb. 3, 1944, No. 1977. [Classes 80 (ii) and 80 (iii)] [Also in Group XL] Ratchet gearing, particularly applicable to the remote control of radio equipment in aircraft where a positive drive for tuning devices, wavechange switches and the like is desired, comprises a high-speed driving shaft 11 on which is fixed an eccentric cam 13 engaging a follower 14 pivoted at 15. Riveted to the upper surface of the follower is a substantially L-shaped spring steel strip 16 one end of which is extended rearwardly to engage a stop 17 to keep the follower in contact with the cam, the other end being bent at right angles to form a pawl which engages a ratchet wheel 18 on the low-speed driven shaft 12. The wheel is stepped round by the length of one tooth for every revolution of the cam. A spring detent 19 prevents backward movement. The mechanism to be driven may be connected to the shaft 12 directly or through gearing. To enable the drive to be engageable and disengageable at will, an electromagnet 22 has an armature 23 the free end of which lies under the free end of the follower 14. The armature is normally raised by a strong spring 24 to lift the follower out of contact with the cam and stop the drive. To restore the drive, the magnet is energized to pull down the armature and free the follower. When the drive ceases, the pawl is jammed between the teeth and a stop 25. In a modification, the armature 23 receives the pressure of the rocker 14 endwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB197744A GB580046A (en) | 1944-02-03 | 1944-02-03 | Improvements in or relating to speed-reducing torque transmission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB197744A GB580046A (en) | 1944-02-03 | 1944-02-03 | Improvements in or relating to speed-reducing torque transmission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB580046A true GB580046A (en) | 1946-08-26 |
Family
ID=9731396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB197744A Expired GB580046A (en) | 1944-02-03 | 1944-02-03 | Improvements in or relating to speed-reducing torque transmission gear |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB580046A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3136167A (en) * | 1961-04-18 | 1964-06-09 | Partner Ab | Mechanisms for transforming a continuous rotary movement into an intermittent rotarymovement |
| DE1192476B (en) * | 1957-08-22 | 1965-05-06 | Mallory & Co Inc P R | Stepping mechanism connected between a drive shaft and a driven shaft |
-
1944
- 1944-02-03 GB GB197744A patent/GB580046A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1192476B (en) * | 1957-08-22 | 1965-05-06 | Mallory & Co Inc P R | Stepping mechanism connected between a drive shaft and a driven shaft |
| US3136167A (en) * | 1961-04-18 | 1964-06-09 | Partner Ab | Mechanisms for transforming a continuous rotary movement into an intermittent rotarymovement |
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