GB443808A - Improvements in or relating to variable speed friction gears - Google Patents

Improvements in or relating to variable speed friction gears

Info

Publication number
GB443808A
GB443808A GB775435A GB775435A GB443808A GB 443808 A GB443808 A GB 443808A GB 775435 A GB775435 A GB 775435A GB 775435 A GB775435 A GB 775435A GB 443808 A GB443808 A GB 443808A
Authority
GB
United Kingdom
Prior art keywords
cradles
rollers
speed
friction
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
Application number
GB775435A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB775435A priority Critical patent/GB443808A/en
Publication of GB443808A publication Critical patent/GB443808A/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
    • F16H15/32—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 curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
    • F16H15/36—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 curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—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 curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Abstract

443,808. Variable - speed friction gearing. CHRISTIANSEN, E., Food Machinery Works, Factory Centre, Lifford Lane, King's Norton, Birmingham. March 13, 1935, No. 7754. [Class 80 (ii)] Variable - speed friction gearing comprises coaxial toric discs 3, 3<1>, Fig. 1, either of which may drive the other through non planetary rollers 4 adapted to tilt, to vary the speed ratio. Between the discs 3, 3<1> and their respective shafts 2, 2<1> are similar torque loading devices 5, 7 for producing traction friction. These loading devices have coacting cam faces 9, 9<1>, Fig. 3, in pairs oppositely directed so that the drive can pass between each disc and its shaft in either direction with equal facility. A spring 25 produces initial friction. The rollers 4 are supported in a frame 11, Fig. 5, which is free to float axially sliding on a fixed rail 23. The rollers are revolubly supported in cradles 10 which are geared together at 15. Speed changes are effected by turning a hand-wheel 26, Fig. 1, which moves a nut 18 which engages an arm 16 on one of the cradles 10 so that the cradles are tilted in unison about their own axes.
GB775435A 1935-03-13 1935-03-13 Improvements in or relating to variable speed friction gears Expired GB443808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB775435A GB443808A (en) 1935-03-13 1935-03-13 Improvements in or relating to variable speed friction gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB775435A GB443808A (en) 1935-03-13 1935-03-13 Improvements in or relating to variable speed friction gears

Publications (1)

Publication Number Publication Date
GB443808A true GB443808A (en) 1936-03-06

Family

ID=9839073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB775435A Expired GB443808A (en) 1935-03-13 1935-03-13 Improvements in or relating to variable speed friction gears

Country Status (1)

Country Link
GB (1) GB443808A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441750A1 (en) * 1978-11-16 1980-06-13 Kloeckner Humboldt Deutz Ag HYDRAULIC CONTROL APPARATUS ESPECIALLY FOR AN AGRICULTURAL MACHINE TRACTOR
US8096918B2 (en) 2005-12-05 2012-01-17 Torotrak (Development) Limited Variator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441750A1 (en) * 1978-11-16 1980-06-13 Kloeckner Humboldt Deutz Ag HYDRAULIC CONTROL APPARATUS ESPECIALLY FOR AN AGRICULTURAL MACHINE TRACTOR
US8096918B2 (en) 2005-12-05 2012-01-17 Torotrak (Development) Limited Variator

Similar Documents

Publication Publication Date Title
GB699202A (en) Improvements in infinitely variable change-speed gears
US2134225A (en) Variable speed friction gear
US2469653A (en) Stepless variable change-speed gear with roller bodies
US2161894A (en) Drive unit
US2939345A (en) Variable-speed power transmission
GB443808A (en) Improvements in or relating to variable speed friction gears
US2216190A (en) Power transmission
US2360076A (en) Variable speed transmission
GB281942A (en) Change speed friction drive gearing
US1024742A (en) Power-transmission mechanism.
US1415164A (en) Power transmission
US2039288A (en) Change speed gear
US2130314A (en) Variable speed transmission
GB476589A (en) Improvements in or relating to frictional change speed gears
US2108083A (en) Transmission mechanism
GB238226A (en) Improvements in or relating to power transmitting devices
GB667983A (en) Improvement in variable speed power transmissions
GB283934A (en) Improvements in or relating to a change speed frictional gearing
US2225480A (en) Epicyclic transmission gear
GB130163A (en) Improved Variable Speed Transmission between Two Shafts.
US2008048A (en) Variable speed transmission system
GB605479A (en) Friction wheel variable speed gear
SU146153A1 (en) Friction variator
GB352687A (en) Improved variable speed gearing for motor vehicles and machinery
GB596991A (en) Variable speed transmission