GB576849A - Improvements in or relating to variable speed gearing - Google Patents

Improvements in or relating to variable speed gearing

Info

Publication number
GB576849A
GB576849A GB315644A GB315644A GB576849A GB 576849 A GB576849 A GB 576849A GB 315644 A GB315644 A GB 315644A GB 315644 A GB315644 A GB 315644A GB 576849 A GB576849 A GB 576849A
Authority
GB
United Kingdom
Prior art keywords
pulley
rods
pulleys
flanges
speed 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
GB315644A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB315644A priority Critical patent/GB576849A/en
Publication of GB576849A publication Critical patent/GB576849A/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
    • 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
    • F16H2009/166—Arrangements of two or more belt gearings mounted in series, e.g. for increasing ratio coverage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Escalators And Moving Walkways (AREA)

Abstract

576,849. Variable-speed gearing. CROWTHER, D. Feb. 21, 1944, No. 3156. [Class 80 (ii)] In variable-speed gearing in which pairs of expandible belt pulleys are arranged in series, the driven pulley of one pair and the driving pulley of the next pair are interconnected for simultaneous operation. As shown, a driving pulley 13 drives a driven shaft 20 through pairs of pulleys 1-2, 3-4, 5-6 and 7-8, and belts a, b, c, d. Pulleys 2 and 3, 4 and 5, 6 and 7 are interconnected for rotation on stationary hollow shafts 10 or 11. Each set of pulleys, for example 2 and 3, have their inner flanges located by a ring 21 fixed on the shaft and their outer flanges connected by a bolt 17 passing through the two inner flanges so that both flanges move together to expand pulley 2 and contract pulley 3 or vice versa. This actuation is effected by pins 24, which project through slots 25 in the hollow shafts and are connected to rods 23 slidable in the hollow shafts, engaging in circular grooves 26 in the pulley flanges. The movement of rods 23 may be effected through the rotation of nuts 27 engaging threaded ends of the rods. Both rods 23 may be operated together by a connecting link and a single screw adjustment.
GB315644A 1944-02-21 1944-02-21 Improvements in or relating to variable speed gearing Expired GB576849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB315644A GB576849A (en) 1944-02-21 1944-02-21 Improvements in or relating to variable speed gearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB315644A GB576849A (en) 1944-02-21 1944-02-21 Improvements in or relating to variable speed gearing

Publications (1)

Publication Number Publication Date
GB576849A true GB576849A (en) 1946-04-23

Family

ID=9752997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB315644A Expired GB576849A (en) 1944-02-21 1944-02-21 Improvements in or relating to variable speed gearing

Country Status (1)

Country Link
GB (1) GB576849A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112772056A (en) * 2021-01-11 2021-05-11 毕节市农业科学研究所 Rapid seeding device for japonica rice breeding and use method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112772056A (en) * 2021-01-11 2021-05-11 毕节市农业科学研究所 Rapid seeding device for japonica rice breeding and use method thereof

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