GB393170A - Variable speed gearing - Google Patents
Variable speed gearingInfo
- Publication number
- GB393170A GB393170A GB2975632A GB2975632A GB393170A GB 393170 A GB393170 A GB 393170A GB 2975632 A GB2975632 A GB 2975632A GB 2975632 A GB2975632 A GB 2975632A GB 393170 A GB393170 A GB 393170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- shaft
- speed
- track
- variable
- 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
- F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
- F16H15/50—Gearings providing a continuous range of gear ratios
- F16H15/52—Gearings providing a continuous range of gear ratios in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
393,170. Variable-speed gearing. COLUCCI, G., 19A, Via Arco Mirelli, Naples, Italy. Oct. 24, 1932, No. 29756. [Class 80 (ii).] In variable-speed gearing, the variation is obtained by changing the ratio of the diameter of planetary rollers 6 to that of a non-rotary track 7 on which they run, the rollers 6 being supported on toggles which carry gear trains passing on the drive to a driven shaft. Toggle arms 2, 4, carried round by a driving-shaft 1 support the spindles 5 on which the rollers 6 are secured. Each spindle is connected by a train 8, 9, 10 to a sun gear 11 fast on the driven shaft 12. In forms shown in Figs. 5 and 6, the actual speed change is effected by separating pairs of track discs 15, 16 between which conical or rounded rollers 6 are pressed by centrifugal force. In a form shown in Fig. 7, the rollers 6 are rounded cones in pairs centrifugally expanded into contact with a pair of coned tracks 7 which are caused to approach one another to raise the speed of the shaft 12 by turning screws 22 in unison from a control gear 23. On the highest speed, rolling ceases, the rollers 6 being gripped solid between rings 27 loose within the non-rotary tracks 7 and spring-pressed taper sleeves 28 on the driving- shaft 1. As the track cones 7 are separated, the speed of the shaft 12 slows through zero into reverse. Arrangements are described for obtaining increased tractive friction between the elements 6, 7 by a component of the torque and by electromagnetic action respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2975632A GB393170A (en) | 1932-10-24 | 1932-10-24 | Variable speed gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2975632A GB393170A (en) | 1932-10-24 | 1932-10-24 | Variable speed gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB393170A true GB393170A (en) | 1933-06-01 |
Family
ID=10296665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2975632A Expired GB393170A (en) | 1932-10-24 | 1932-10-24 | Variable speed gearing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB393170A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2455407A (en) * | 1947-02-21 | 1948-12-07 | Christmann John Louis | Variable-speed transmission |
| WO2009051519A1 (en) * | 2007-10-19 | 2009-04-23 | Zakrytoe Aktsionernoe Obshchestvo 'kombarko' | Disc-type planetary speed variator |
| GB2566528A (en) * | 2017-09-18 | 2019-03-20 | Mcanulla Aidan | Infinitely variable multi-epicyclic friction transmission system for electric motor |
-
1932
- 1932-10-24 GB GB2975632A patent/GB393170A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2455407A (en) * | 1947-02-21 | 1948-12-07 | Christmann John Louis | Variable-speed transmission |
| WO2009051519A1 (en) * | 2007-10-19 | 2009-04-23 | Zakrytoe Aktsionernoe Obshchestvo 'kombarko' | Disc-type planetary speed variator |
| GB2566528A (en) * | 2017-09-18 | 2019-03-20 | Mcanulla Aidan | Infinitely variable multi-epicyclic friction transmission system for electric motor |
| GB2567745A (en) * | 2017-09-18 | 2019-04-24 | Mcanulla Aidan | Infinitely variable multi-epicyclic friction transmission system for electric motor |
| GB2567745B (en) * | 2017-09-18 | 2020-02-19 | Mcanulla Aidan | Infinitely variable multi-epicyclic friction transmission system for electric motor |
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