GB477537A - Friction gearing - Google Patents
Friction gearingInfo
- Publication number
- GB477537A GB477537A GB1830736A GB1830736A GB477537A GB 477537 A GB477537 A GB 477537A GB 1830736 A GB1830736 A GB 1830736A GB 1830736 A GB1830736 A GB 1830736A GB 477537 A GB477537 A GB 477537A
- Authority
- GB
- United Kingdom
- Prior art keywords
- balls
- races
- july
- casing
- driven 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
- 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
- F16H61/66—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 specially adapted for continuously variable gearings
- F16H61/664—Friction gearings
- F16H61/6647—Friction gearings controlling shifting exclusively as a function of torque
-
- 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
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/40—Gearings providing a continuous range of gear ratios in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Friction Gearing (AREA)
Abstract
477,537. Variable - speed gearing. SVEDA, V. July 1, 1936, No. 18307. Convention date, July 3, 1935. [Class 80 (ii)] The driving shaft carries an expanding wheel 3, 4 engaging a ring of balls 11 which rotate in a stationary cage 12 and thus drive a pair of races 7, 8 connected to the casing 6 on the driven shaft 2 by balls 13 located in converging channels 14 between the outer faces of the races 7, 8 and the casing 6. Axial pressure developed by the balls 13 presses the races 7, 8 together, thus forcing the balls 11 inwardly and separating the parts 3, 4 of the expanding wheel against-the. action of springs 5. The position of the balls 11 on the bevelled surfaces 9, 10 of the gear members 3, 4, 7, 8, and hence the gear ratio is thus determined automatically by the torque in the driven shaft. To reduce the pressure on the balls 13, two gear arrangements as described above may be arranged in parallel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS477537X | 1935-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB477537A true GB477537A (en) | 1938-01-03 |
Family
ID=5453023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1830736A Expired GB477537A (en) | 1935-07-03 | 1936-07-01 | Friction gearing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB477537A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2586725A (en) * | 1950-02-08 | 1952-02-19 | Roller Gear Corp | Variable-speed transmission |
| US2701970A (en) * | 1951-01-17 | 1955-02-15 | Excelermatic | Friction contact type speed changer |
| US2853899A (en) * | 1955-08-09 | 1958-09-30 | Louis A Graham | Variable speed transmission |
| FR2324952A1 (en) * | 1975-09-18 | 1977-04-15 | Textron Inc | MECHANICAL TRACTION CONTROL TRANSMISSION, ESPECIALLY FOR SMALL VEHICLES |
| WO2015028797A1 (en) * | 2013-08-29 | 2015-03-05 | The University Of Sussex | Continuously variable transmission |
-
1936
- 1936-07-01 GB GB1830736A patent/GB477537A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2586725A (en) * | 1950-02-08 | 1952-02-19 | Roller Gear Corp | Variable-speed transmission |
| US2701970A (en) * | 1951-01-17 | 1955-02-15 | Excelermatic | Friction contact type speed changer |
| US2853899A (en) * | 1955-08-09 | 1958-09-30 | Louis A Graham | Variable speed transmission |
| FR2324952A1 (en) * | 1975-09-18 | 1977-04-15 | Textron Inc | MECHANICAL TRACTION CONTROL TRANSMISSION, ESPECIALLY FOR SMALL VEHICLES |
| WO2015028797A1 (en) * | 2013-08-29 | 2015-03-05 | The University Of Sussex | Continuously variable transmission |
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