GB452422A - Improvements in variable speed and reversing gearing - Google Patents

Improvements in variable speed and reversing gearing

Info

Publication number
GB452422A
GB452422A GB497235A GB497235A GB452422A GB 452422 A GB452422 A GB 452422A GB 497235 A GB497235 A GB 497235A GB 497235 A GB497235 A GB 497235A GB 452422 A GB452422 A GB 452422A
Authority
GB
United Kingdom
Prior art keywords
gear
wheels
variable speed
driving shaft
plate
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
GB497235A
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.)
CHARLES HUMPHREY WOODS
Original Assignee
CHARLES HUMPHREY WOODS
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 CHARLES HUMPHREY WOODS filed Critical CHARLES HUMPHREY WOODS
Priority to GB497235A priority Critical patent/GB452422A/en
Publication of GB452422A publication Critical patent/GB452422A/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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H37/0853—CVT using friction between rotary members having a first member of uniform effective diameter cooperating with different parts of a second member
    • 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
    • F16H15/08—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 is a disc with a flat or approximately flat friction surface
    • F16H15/10—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 is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect

Landscapes

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

Abstract

452,422. Variable-speed and reversing gearing. WOODS, C. H., Densworth, Endebess, Kenya, British East Africa. Feb. 15, 1935, No. 4972. [Class 80 (ii)] [See also Group XXVI] A gearing arrangement whereby a progressive change of speed may be obtained in both forward and reverse directions comprises a variable speed gear and an epicyclic gear, the first element of the epicyclic gear being rotated by the driven element of the variable speed gear, the driving element of this gear being rotated by the driving shaft and the driven shaft being coupled to the third element of the epicyclic gear. In the form shown in Figs 2 and 4, the variable speed gear comprises a disc 35 slidably but non-rotatably mounted on the driving shaft 13 resiliently held in engagement with friction wheels 25 similarly mounted on radial shafts 24 carried by upstanding parts 22, 23 on a stationary plate 21. The wheels 25 are coupled to the slidable bosses by gimbal rings 27 pivoted to the bosses at 28, 29 and to the wheels by pivots arranged at right angles. to the pivots 28, 29. The wheels 25 are also mounted in forks 32 rotatably mounted in bosses 42 slidable in slots 43 in the plate 21. The lower ends of the members 32 are provided with arms 44 having pins engaging a spiral slot in a plate 46. By rotating the plate the wheels are tilted with respect to their shafts and thereby caused to take up a new radial position giving a different gear ratio. Each of the shafts 24 carries a bevel pinion 39 meshing with a pinion 40 formed integrally with the crown wheel 18 of the epicyclic gear. The other crown wheel 16 is coupled to the driven shaft 19 while the planetary pinions 15 are carried by a spider 14 on the driving shaft. In a modification employing a variable speed gear comprising oppositely coned pulleys connected by a crossed belt, the driving shaft directly rotates one of the crown wheels of the differential gear and orbitally rotates the planetary bevel pinions through the variable speed gear. Fig. 5 shows the invention applied to a governing device for a prime mover. The prime mover directly drives the crown wheel 81 and the friction disc 75. The planet carrier is rotated by a pinion 78 on a shaft 77 carrying a friction wheel 76 adjusted to vary the gear ratio by a centrifugal governor 86 acting through a bellcrank 87 and adjustable link 88. Reference has been directed by the Comptroller to Specifications 17533/97, 15036/00, [both in Class 80], 326,314, [Class 80 (ii)], 375,610, 387,214, 417,633, and 427,431.
GB497235A 1935-02-15 1935-02-15 Improvements in variable speed and reversing gearing Expired GB452422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB497235A GB452422A (en) 1935-02-15 1935-02-15 Improvements in variable speed and reversing gearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB497235A GB452422A (en) 1935-02-15 1935-02-15 Improvements in variable speed and reversing gearing

Publications (1)

Publication Number Publication Date
GB452422A true GB452422A (en) 1936-08-17

Family

ID=9787338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB497235A Expired GB452422A (en) 1935-02-15 1935-02-15 Improvements in variable speed and reversing gearing

Country Status (1)

Country Link
GB (1) GB452422A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194088A (en) * 1963-02-11 1965-07-13 Richard T Erban Variable ratio transmission
GB2251042A (en) * 1990-12-17 1992-06-24 Derek Edward Westbrook Continuously-variable transmission
WO2014156251A1 (en) * 2013-03-25 2014-10-02 ジヤトコ株式会社 Transmission mechanism
CN105570420A (en) * 2014-11-03 2016-05-11 夏兴旺 Intersecting shaft type planet friction mechanical infinitely variable transmission and infinitely variable transmission method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194088A (en) * 1963-02-11 1965-07-13 Richard T Erban Variable ratio transmission
GB2251042A (en) * 1990-12-17 1992-06-24 Derek Edward Westbrook Continuously-variable transmission
WO2014156251A1 (en) * 2013-03-25 2014-10-02 ジヤトコ株式会社 Transmission mechanism
JP5922304B2 (en) * 2013-03-25 2016-05-24 ジヤトコ株式会社 Speed change mechanism
CN105570420A (en) * 2014-11-03 2016-05-11 夏兴旺 Intersecting shaft type planet friction mechanical infinitely variable transmission and infinitely variable transmission method thereof
WO2016070487A1 (en) * 2014-11-03 2016-05-12 夏兴旺 Shaft intersection and planet friction type mechanical continuously variable transmission and continuously variable transmission method therefor

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