GB445493A - Improvements in belt and rope drives - Google Patents

Improvements in belt and rope drives

Info

Publication number
GB445493A
GB445493A GB3365934A GB3365934A GB445493A GB 445493 A GB445493 A GB 445493A GB 3365934 A GB3365934 A GB 3365934A GB 3365934 A GB3365934 A GB 3365934A GB 445493 A GB445493 A GB 445493A
Authority
GB
United Kingdom
Prior art keywords
pulley
pressure
spindle
belt
rollers
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
GB3365934A
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.)
HERBERT WALKER SWIFT
Original Assignee
HERBERT WALKER SWIFT
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 HERBERT WALKER SWIFT filed Critical HERBERT WALKER SWIFT
Priority to GB3365934A priority Critical patent/GB445493A/en
Publication of GB445493A publication Critical patent/GB445493A/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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0804—Leaf springs
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0806—Compression coil springs
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0808—Extension coil springs
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0874—Two or more finally actuated members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

445,493. Tensioning belts. SWIFT, H. W., 2, Ellenthorpe Road, The Glen, Shipley, and SYKES, F., 244, Leymoor Road, Golcar, both in Yorkshire. Nov. 23, 1934, No. 33659. [Class 80 (i)] An idle roller bearing against and interfering somewhat with a free strand of the belt or rope is connected by a lever or linkage to a pressure roller which does not interfere with or deflect the other free strand but exerts upon the belt at some point on its are of contact with the pulley a radial pressure which is dependent upon the tension in the free strand first referred to. The pressure roller 1 is mounted on a spindle 2 carried by a pair of lever arms 3 pivoted at 4 to a bracket 5, the outer ends of the arms carrying a spindle 6 on which is mounted an idle roller 7 engaging the tight side 8 of the belt. Increase in tension of this side forces the pressure roller 1 against the pulley 9. To neutralize the effect of gravity and provide an initial pressure, a spring 10 anchored at 11 is connected to the lever 3. In a vertical drive, Fig. 2, the pressure roller 12 is mounted on a spindle 13 carried by two plates 14 pivoted at 15. The plates are adjustably clamped to a flexible extension 17 pivoted to a rod 19 a boss on which carries the spindle of the idle roller 20 and is connected by a spring 21 to a lug 23. The tight side 25 exerts a toggle action on 19, 21 to produce a radial force on the belt passing over pulley 18. In a modification, the pressure roller is rotatably mounted on a spindle with eccentric pivots carried by a fixed bracket, the spindle being rotated by the idle pulley through a flexible bar in such manner as to relieve pressure on the pressure pulley as the tension in the tight side increases. In a further modification, two pressure rollers are employed, one acting on the driving and the other on the driven pulley. These rollers are mounted on pivoted arms the free ends of which are connected by links to a third link carrying the idle pulley. In addition to using flexible links, the rollers and pulleys may be of non-rigid material, such as rubber, to counteract any tendency to jumping. When applied to rope drives, the rollers and pulleys may be grooved.
GB3365934A 1934-11-23 1934-11-23 Improvements in belt and rope drives Expired GB445493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3365934A GB445493A (en) 1934-11-23 1934-11-23 Improvements in belt and rope drives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3365934A GB445493A (en) 1934-11-23 1934-11-23 Improvements in belt and rope drives

Publications (1)

Publication Number Publication Date
GB445493A true GB445493A (en) 1936-04-14

Family

ID=10355762

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3365934A Expired GB445493A (en) 1934-11-23 1934-11-23 Improvements in belt and rope drives

Country Status (1)

Country Link
GB (1) GB445493A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525241A (en) * 1968-07-12 1970-08-25 Westinghouse Electric Corp Belt drive for a top-loading washing machine
CN110510367A (en) * 2019-09-16 2019-11-29 粤水电轨道交通建设有限公司 A kind of active belt regulating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525241A (en) * 1968-07-12 1970-08-25 Westinghouse Electric Corp Belt drive for a top-loading washing machine
CN110510367A (en) * 2019-09-16 2019-11-29 粤水电轨道交通建设有限公司 A kind of active belt regulating device

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