GB257792A - Improvements in variable change speed friction gear - Google Patents
Improvements in variable change speed friction gearInfo
- Publication number
- GB257792A GB257792A GB2939525A GB2939525A GB257792A GB 257792 A GB257792 A GB 257792A GB 2939525 A GB2939525 A GB 2939525A GB 2939525 A GB2939525 A GB 2939525A GB 257792 A GB257792 A GB 257792A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- twin
- gear
- variable
- rims
- 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
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/16—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface
- F16H15/18—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally
- F16H15/22—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally the axes of the members being parallel or approximately parallel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
257,792. Tallis, R. W. Nov. 21, 1925. Variable-speed gearing of the kind in which an intermediate friction member 14, Fig. 1, is transversely movable between twin driving and driven members 8, 9 and 10, 11 respectively, is modified so that a common compensating member 20 engages each half of the divided members and exerts equal thrusts upon them. The two compensating members 20 may be in the form of laminated springs which, as the gear member 14 is displaced to vary the speed, pivot about medial adjustable screws 22. The member 14 may be doubly coned as shown in Fig. 1, the twin members 8 - - 11 having projecting gear rims 12 of constant effective diameter. Alternatively as shown in Fig. 5, the intermediate member 34 may have rims 12 of constant gear diameter and the twin members may be conical and of variable effective diameters. In either case the twin members have central projections 24 extending towards one another which may abut as shown in Fig. 5 to disconnect the drive. Control is effected by a forked lever 15 straddling the intermediate member 14 or 34 and pivoted on the floor of gear casing 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2939525A GB257792A (en) | 1925-11-21 | 1925-11-21 | Improvements in variable change speed friction gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2939525A GB257792A (en) | 1925-11-21 | 1925-11-21 | Improvements in variable change speed friction gear |
Publications (1)
Publication Number | Publication Date |
---|---|
GB257792A true GB257792A (en) | 1926-09-09 |
Family
ID=10290886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2939525A Expired GB257792A (en) | 1925-11-21 | 1925-11-21 | Improvements in variable change speed friction gear |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB257792A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749611C (en) * | 1940-02-22 | 1944-11-27 | Infinitely variable friction wheel change gear with a drive pulley that grips the friction wheel pairs on the inside | |
US2417406A (en) * | 1945-01-17 | 1947-03-18 | Jr Harry D Burkhalter | Change-speed transmission |
US2555079A (en) * | 1945-11-23 | 1951-05-29 | Giorgi Antonio | Friction speed gear |
US2583972A (en) * | 1950-06-24 | 1952-01-29 | Rek O Kut Company | Selectable speed drive for sound transcription mechanisms |
US2772575A (en) * | 1954-04-26 | 1956-12-04 | Napier & Son Ltd | Infinitely variable ratio transmission mechanism |
WO2002025140A1 (en) * | 2000-09-22 | 2002-03-28 | The Gates Corporation | Drive ring cvt coupler |
-
1925
- 1925-11-21 GB GB2939525A patent/GB257792A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749611C (en) * | 1940-02-22 | 1944-11-27 | Infinitely variable friction wheel change gear with a drive pulley that grips the friction wheel pairs on the inside | |
US2417406A (en) * | 1945-01-17 | 1947-03-18 | Jr Harry D Burkhalter | Change-speed transmission |
US2555079A (en) * | 1945-11-23 | 1951-05-29 | Giorgi Antonio | Friction speed gear |
US2583972A (en) * | 1950-06-24 | 1952-01-29 | Rek O Kut Company | Selectable speed drive for sound transcription mechanisms |
US2772575A (en) * | 1954-04-26 | 1956-12-04 | Napier & Son Ltd | Infinitely variable ratio transmission mechanism |
WO2002025140A1 (en) * | 2000-09-22 | 2002-03-28 | The Gates Corporation | Drive ring cvt coupler |
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