GB749252A - Improvements in variable speed belt transmission mechanism - Google Patents

Improvements in variable speed belt transmission mechanism

Info

Publication number
GB749252A
GB749252A GB222353A GB222353A GB749252A GB 749252 A GB749252 A GB 749252A GB 222353 A GB222353 A GB 222353A GB 222353 A GB222353 A GB 222353A GB 749252 A GB749252 A GB 749252A
Authority
GB
United Kingdom
Prior art keywords
flanges
secured
speed
pulley
fenner
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
GB222353A
Inventor
James Mitchell
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.)
Fenner Group Holdings Ltd
Original Assignee
JH Fenner and Co Holdings Ltd
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 JH Fenner and Co Holdings Ltd filed Critical JH Fenner and Co Holdings Ltd
Priority to GB222353A priority Critical patent/GB749252A/en
Publication of GB749252A publication Critical patent/GB749252A/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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
    • F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
    • F16H61/6625—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling shifting exclusively as a function of torque

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

749,252. Variable-speed gearing. FENNER & CO. (HOLDINGS), Ltd., J. H., [formerly FENNER & CO., Ltd:, J. H.]. April 23,1954 [Jan. 26, 1953], No. 2223/53. Class 80(2) In variable-speed V-belt gearing wherein speed variations are effected by adjusting the distance between the axes of the pulleys or by moving a jockey pulley, one of the pulleys has conical flanges 1, 2 urged together both by a spring 24 and by torqueresponsive means, the rate of the 'spring being so related to the action of the torqueresponsive means that, under maximum power conditions, the total force urging the flanges together is substantially constant throughout the range of effective diameters of the pulley, so that the tensions in the tight and slack runs of the belt remain constant. As shown in Fig. 1, the flanges 1, 2 are slidably keyed together at 10 and are loose on a sleeve 3 fixed to the driving or driven shaft 4, and helically-grooved rings 21, 22 secured to the flanges 1, 2 engage with helical ribs 16 in a housing 14 secured to the sleeve 3. Alternatively, flange 1 may be axially fixed, ring 21 being then omitted. As shown in Fig. 5, the torque-responsive means comprise pairs of toggle links 29, 30 which straighten in response to increased torque, the mid-points of the toggles being carried by a ring 28 secured to the housing 14. A multiple-pulley arrangement is also described (Fig. 3, not shown).
GB222353A 1953-01-26 1953-01-26 Improvements in variable speed belt transmission mechanism Expired GB749252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB222353A GB749252A (en) 1953-01-26 1953-01-26 Improvements in variable speed belt transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB222353A GB749252A (en) 1953-01-26 1953-01-26 Improvements in variable speed belt transmission mechanism

Publications (1)

Publication Number Publication Date
GB749252A true GB749252A (en) 1956-05-23

Family

ID=9735757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB222353A Expired GB749252A (en) 1953-01-26 1953-01-26 Improvements in variable speed belt transmission mechanism

Country Status (1)

Country Link
GB (1) GB749252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571804A1 (en) * 1984-10-16 1986-04-18 Fortschritt Veb K CONTINUOUSLY CONFIGURABLE TRANSMISSION DEVICE WITH TRAPEZOIDAL BELT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571804A1 (en) * 1984-10-16 1986-04-18 Fortschritt Veb K CONTINUOUSLY CONFIGURABLE TRANSMISSION DEVICE WITH TRAPEZOIDAL BELT

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