GB1213481A - Variable speed gear - Google Patents

Variable speed gear

Info

Publication number
GB1213481A
GB1213481A GB594867A GB594867A GB1213481A GB 1213481 A GB1213481 A GB 1213481A GB 594867 A GB594867 A GB 594867A GB 594867 A GB594867 A GB 594867A GB 1213481 A GB1213481 A GB 1213481A
Authority
GB
United Kingdom
Prior art keywords
shaft
thrust member
plates
drive
keyed
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
GB594867A
Inventor
Edwin Roy Brown
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.)
FLEXTOL Ltd
Original Assignee
FLEXTOL 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 FLEXTOL Ltd filed Critical FLEXTOL Ltd
Priority to GB594867A priority Critical patent/GB1213481A/en
Publication of GB1213481A publication Critical patent/GB1213481A/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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts

Landscapes

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

Abstract

1,213,481. Expanding-wheel gear. FLEXTOL Ltd. 8 Feb., 1968 [8 Feb., 1967], No. 6948/67. Heading F2D. In a variable speed drive in which a V-belt 13 transmits motion between a pair of pulleys comprising pairs of frusto-conical plates 10, 11 and 33, 34 respectively movable axially relatively to each other, plate 34 is moved by a thrust member 38 engaged by a thread 25 on a shaft 14 rotatable coaxially with the pulley axis means being provided for pre-setting the position of the thrust member with respect to the plate so that the speed ratio corresponds to that indicated on a hand wheel 16 for rotating the shaft. As shown, plates 33, 34 form a driven pulley and are rotatable on an extension 26 on one end of the shaft 14. The other end is journalled in the housing 1 and carries the hand wheel 16 which is lockable by a lever 19. A stud 40 prevents rotation of the thrust member and also serves as the pre-setting means by engaging selected holes 43, 41 in the housing and thrust member. Two sets of angularly-spaced holes 43, 41 may be provided, one set having a different hole-spacing from the other. Plates 10, 11 are keyed to the drive shaft of motor 3 and are urged together by a spring 12. In another embodiment, Fig. 4 (not shown), plates 33, 34 form the drive pulley and are keyed and splined respectively to the drive shaft 4. The shaft 14 has an extension surrounding the end of shaft 4 and externally threaded for engagement with the thrust member 38.
GB594867A 1967-02-08 1967-02-08 Variable speed gear Expired GB1213481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB594867A GB1213481A (en) 1967-02-08 1967-02-08 Variable speed gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB594867A GB1213481A (en) 1967-02-08 1967-02-08 Variable speed gear

Publications (1)

Publication Number Publication Date
GB1213481A true GB1213481A (en) 1970-11-25

Family

ID=9805630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB594867A Expired GB1213481A (en) 1967-02-08 1967-02-08 Variable speed gear

Country Status (1)

Country Link
GB (1) GB1213481A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years