GB257792A - Improvements in variable change speed friction gear - Google Patents

Improvements in variable change speed friction gear

Info

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
Application number
GB2939525A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RICHARD WATKIN TALLIS
Original Assignee
RICHARD WATKIN TALLIS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RICHARD WATKIN TALLIS filed Critical RICHARD WATKIN TALLIS
Priority to GB2939525A priority Critical patent/GB257792A/en
Publication of GB257792A publication Critical patent/GB257792A/en
Expired legal-status Critical Current

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

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.
GB2939525A 1925-11-21 1925-11-21 Improvements in variable change speed friction gear Expired GB257792A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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