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GB270547A - Improvements in or relating to pulleys - Google Patents

Improvements in or relating to pulleys

Info

Publication number
GB270547A
GB270547A GB2228426A GB2228426A GB270547A GB 270547 A GB270547 A GB 270547A GB 2228426 A GB2228426 A GB 2228426A GB 2228426 A GB2228426 A GB 2228426A GB 270547 A GB270547 A GB 270547A
Authority
GB
United Kingdom
Prior art keywords
stems
disc
pulley
hub
springs
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
GB2228426A
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.)
Sleeper and Hartley Inc
Original Assignee
Sleeper and Hartley Inc
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 Sleeper and Hartley Inc filed Critical Sleeper and Hartley Inc
Priority to GB2228426A priority Critical patent/GB270547A/en
Publication of GB270547A publication Critical patent/GB270547A/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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/52—Pulleys or friction discs of adjustable construction
    • F16H55/54—Pulleys or friction discs of adjustable construction of which the bearing parts are radially adjustable

Landscapes

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

Abstract

270,547. Sleeper & Hartley, Inc. Sept. 9, 1926. Addition to 216,491. Expanding pulleys acting automatically to adjust the speed to the load may be adapted to drive the belt or to be driven thereby. One of each kind may be used in one transmission. A driven pulley is illustrated. Tread members 19 are each carried by a pivotal stem 18 projecting inwardly at an angle and adapted to be moved about its pivot to vary the pulley diameter. Each stem 18 carries a bowl 21 engaging an inclined cam slot 12 in a disc 11 fast on the shaft 10. The pivots 15 of the stems 18 are carried by a disc 16 extending from a hub 13 loose on the. shaft 10. Each tread member is connected by a tension spring 23 to a pin 24 on a ring 30 fast on the hub 13. Under change of load, the disc 16 turns relatively moving in unison the stems, which are acted on also by the cam reactions and by the springs. The stems are joggled to pass one another. In the case of a pulley driving the belt, springs of the compression type are employed.
GB2228426A 1926-09-09 1926-09-09 Improvements in or relating to pulleys Expired GB270547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2228426A GB270547A (en) 1926-09-09 1926-09-09 Improvements in or relating to pulleys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2228426A GB270547A (en) 1926-09-09 1926-09-09 Improvements in or relating to pulleys

Publications (1)

Publication Number Publication Date
GB270547A true GB270547A (en) 1927-05-12

Family

ID=10176879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2228426A Expired GB270547A (en) 1926-09-09 1926-09-09 Improvements in or relating to pulleys

Country Status (1)

Country Link
GB (1) GB270547A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432009B1 (en) 1998-08-06 2002-08-13 Brigham Young University Continuously variable transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432009B1 (en) 1998-08-06 2002-08-13 Brigham Young University Continuously variable transmission

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