GB673168A - Change speed gear of the tiltable roller type - Google Patents

Change speed gear of the tiltable roller type

Info

Publication number
GB673168A
GB673168A GB129/50A GB12950A GB673168A GB 673168 A GB673168 A GB 673168A GB 129/50 A GB129/50 A GB 129/50A GB 12950 A GB12950 A GB 12950A GB 673168 A GB673168 A GB 673168A
Authority
GB
United Kingdom
Prior art keywords
rollers
wheels
rod
rods
tiltable
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
GB129/50A
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
Publication of GB673168A publication Critical patent/GB673168A/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

673,168. Mathematical drawing appliances. STRECKER, G. Jan. 3, 1950 [Jan. 3, 1949], No. 129/50. Class 97 (iii). [Also in Group XXIV] In a variable-speed gear having one or more tiltable rollers 3a, 3b, Fig. 11, frictionally engaging bevel wheels 1, 2 on co-axial driving and driven shafts 6, 8, the contact surfaces of the rollers and wheels are such that, as the rollers 3a are tilted to vary the speedratio, the contact points B1 of the rollers with the wheels also varies. Wear of the rollers is thus diminished. The profiles of the rollers and wheels may be circular arcs or curves of variable curvature. As shown the wheels 1, 2 are of variable curvature, the wheel 2 being slidable axially under the action of a spring or torque responsive means or both. The rollers 3a, 3b are tiltable about axes 5a, 5b in a pressure balancing frame 14 and the yokes 4a, 4b carrying the roller spindles can slide relatively to shoes 21a, 21b carried about the axes 5a, 5b. An instrument for drawing a wheel profile curve of variable curvature to give true rolling contact surfaces comprises rods 1, 4, Fig. 8, having forks 2, 5. Rod 1 is rigid with a rod 3 and the rods 4 are rigid with rods 6. The latter carry sharp-edged inking rollers 7 and are pivoted at N<SP>1</SP>1, N<SP>1</SP>2 to the rod 3. If a tracing member passes through the forks 2, 5 and moves along a line AA corresponding to the common axis of the bevel wheels, the rollers 7 will trace out the profile curves B2, B<SP>1</SP>2 and B1, B<SP>1</SP>1.
GB129/50A 1949-01-03 1950-01-03 Change speed gear of the tiltable roller type Expired GB673168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH673168X 1949-01-03

Publications (1)

Publication Number Publication Date
GB673168A true GB673168A (en) 1952-06-04

Family

ID=4527858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB129/50A Expired GB673168A (en) 1949-01-03 1950-01-03 Change speed gear of the tiltable roller type

Country Status (1)

Country Link
GB (1) GB673168A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748614A (en) * 1953-06-23 1956-06-05 Zenas V Weisel Variable speed transmission
US2786363A (en) * 1955-05-31 1957-03-26 Gen Motors Corp Torus ring for infinitely variable transmission
US2847861A (en) * 1953-06-23 1958-08-19 Zenas V Weisel Variable speed transmission
US5263907A (en) * 1990-01-30 1993-11-23 Torotrak (Development) Limited Transmission of the toroidal-race rolling-traction type
US5895337A (en) * 1995-03-16 1999-04-20 Torotrak (Development) Limited Continuously-variable-ratios transmissions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748614A (en) * 1953-06-23 1956-06-05 Zenas V Weisel Variable speed transmission
US2847861A (en) * 1953-06-23 1958-08-19 Zenas V Weisel Variable speed transmission
US2786363A (en) * 1955-05-31 1957-03-26 Gen Motors Corp Torus ring for infinitely variable transmission
US5263907A (en) * 1990-01-30 1993-11-23 Torotrak (Development) Limited Transmission of the toroidal-race rolling-traction type
US5895337A (en) * 1995-03-16 1999-04-20 Torotrak (Development) Limited Continuously-variable-ratios transmissions

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