GB298327A - Improvements in or relating to change speed mechanism - Google Patents
Improvements in or relating to change speed mechanismInfo
- Publication number
- GB298327A GB298327A GB2171227A GB2171227A GB298327A GB 298327 A GB298327 A GB 298327A GB 2171227 A GB2171227 A GB 2171227A GB 2171227 A GB2171227 A GB 2171227A GB 298327 A GB298327 A GB 298327A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- shaft
- gear
- effected
- driven
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
-
- 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
- F16H2710/00—Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing
- F16H2710/04—Control dependent on speed
- F16H2710/06—Control dependent on speed only the toothed wheels remain engaged
- F16H2710/10—Control dependent on speed only the toothed wheels remain engaged the control being hydraulic or pneumatic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
298,327. McGill, H. Aug. 17, 1927. variable-speed gearing is controlled automatically by the movement of a piston 27, Fig. 2, effected by a pump 30 driven from the driven shaft 9. A lay shaft 6 is constantly driven from driving-shaft 4 and carries gear 12, 14. Direct drive and two reduced speeds are effected by the selective clutching to shaft 9 of rings 17, 13, 15. Each clutch has radial spring-returned plungers 20, Fig. 6, which engage recesses 21, Fig. 2, in the rings. The operation is effected by the axial sliding of cam bars 23 which are coupled to the piston 27, which in this form, surrounds shaft 9. A spring 34 constantly thrusts the piston towards the lowest-gear position, and disconnection of drive is effected by sliding the gear 14 out of mesh. The pump 30 thrusts preferably oil through a pipe into annular chamber behind piston 27 so a.s to displace the piston. There are escape ports 38, 39 the effect of which is that the gear-controlling displacements of piston 27 are the proper function of the speed of the driven shaft 9. A bye-pass may be provided to enable, say, a vehicle to descend hills in low gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2171227A GB298327A (en) | 1927-08-17 | 1927-08-17 | Improvements in or relating to change speed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2171227A GB298327A (en) | 1927-08-17 | 1927-08-17 | Improvements in or relating to change speed mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB298327A true GB298327A (en) | 1928-10-11 |
Family
ID=10167557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2171227A Expired GB298327A (en) | 1927-08-17 | 1927-08-17 | Improvements in or relating to change speed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB298327A (en) |
-
1927
- 1927-08-17 GB GB2171227A patent/GB298327A/en not_active Expired
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