GB788563A - Improvements in or relating to variable speed driving mechanisms - Google Patents

Improvements in or relating to variable speed driving mechanisms

Info

Publication number
GB788563A
GB788563A GB2020455A GB2020455A GB788563A GB 788563 A GB788563 A GB 788563A GB 2020455 A GB2020455 A GB 2020455A GB 2020455 A GB2020455 A GB 2020455A GB 788563 A GB788563 A GB 788563A
Authority
GB
United Kingdom
Prior art keywords
members
coaxial
sleeve
toric
gearing
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
GB2020455A
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.)
HARRISON REPRODUCTION EQUIPMEN
ROY FIRTH
Original Assignee
HARRISON REPRODUCTION EQUIPMEN
ROY FIRTH
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 HARRISON REPRODUCTION EQUIPMEN, ROY FIRTH filed Critical HARRISON REPRODUCTION EQUIPMEN
Priority to GB2020455A priority Critical patent/GB788563A/en
Publication of GB788563A publication Critical patent/GB788563A/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
    • F16H15/40—Gearings providing a continuous range of gear ratios in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts

Landscapes

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

Abstract

788,563. Variable-speed gearing. HARRISON REPRODUCTION EQUIPMENT, Ltd., and FIRTH, R. July 12, 1956 [July 12, 1955], No. 20204/55. Class 80 (2). Variable-speed friction gearing comprises toric-surfaced driving and members 4, 6, which may have coaxial, parallel or inclined axes, with an interposed straight row of contacting balls 10, 11, 12 in a stationary cage 9 which is tiltable about an axis 14 at the meeting point of, and tangential to, the two loci of the centres of the toric arcs 4A, 6A of the members 4, 6, means being provided to produce the required contact pressure. As shown, the members 4, 6 are coaxial and a number of cages 9 may therefore be used, each pivoted by trunnions 13 in a pair of lugs 8 extending from a sleeve 7 secured in the casing coaxially with the member 4. The cages are tilted through links 23 by a sleeve 21 slidable on the sleeve 7 under the control of a knob 15 through gearing 16, 17, shaft 18 and stirrup 19. A spring 32 provides the necessary contact pressure; alternatively, this pressure may be provided by magnetic means, the members 4, 6 being permanently magnetized with opposite polarities or being arranged in an external magnetic field, the magnitude of which could be adjustable. The toric arcs 4A, 6A may be of the same or of different radii, and the balls 10 11, 12 of each row may be of different diameters. Where the members 4, 6 are not coaxial, only a single cage 9 can be used.
GB2020455A 1955-07-12 1955-07-12 Improvements in or relating to variable speed driving mechanisms Expired GB788563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2020455A GB788563A (en) 1955-07-12 1955-07-12 Improvements in or relating to variable speed driving mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2020455A GB788563A (en) 1955-07-12 1955-07-12 Improvements in or relating to variable speed driving mechanisms

Publications (1)

Publication Number Publication Date
GB788563A true GB788563A (en) 1958-01-02

Family

ID=10142152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2020455A Expired GB788563A (en) 1955-07-12 1955-07-12 Improvements in or relating to variable speed driving mechanisms

Country Status (1)

Country Link
GB (1) GB788563A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019080A1 (en) * 1996-10-28 1998-05-07 Herbert Bolter Friction gear
WO1998046913A1 (en) * 1997-04-14 1998-10-22 Landri Fel Rotary transmission mechanism operating by variable-ratio friction
US5888217A (en) * 1995-07-19 1999-03-30 Materials Engineering And Development, Inc. Modular interface connector for a prosthetic limb
WO2002016803A1 (en) * 2000-08-19 2002-02-28 Bernard Maitland Hartley Variable transmission system
EP2547930A1 (en) * 2010-03-19 2013-01-23 Paul D. Okulov Improvements in continuously variable transmission

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888217A (en) * 1995-07-19 1999-03-30 Materials Engineering And Development, Inc. Modular interface connector for a prosthetic limb
WO1998019080A1 (en) * 1996-10-28 1998-05-07 Herbert Bolter Friction gear
WO1998046913A1 (en) * 1997-04-14 1998-10-22 Landri Fel Rotary transmission mechanism operating by variable-ratio friction
WO2002016803A1 (en) * 2000-08-19 2002-02-28 Bernard Maitland Hartley Variable transmission system
EP2547930A1 (en) * 2010-03-19 2013-01-23 Paul D. Okulov Improvements in continuously variable transmission
EP2547930A4 (en) * 2010-03-19 2014-01-08 Paul D Okulov Improvements in continuously variable transmission

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