GB168043A - Improvements in and relating to pulleys - Google Patents
Improvements in and relating to pulleysInfo
- Publication number
- GB168043A GB168043A GB19182/21A GB1918221A GB168043A GB 168043 A GB168043 A GB 168043A GB 19182/21 A GB19182/21 A GB 19182/21A GB 1918221 A GB1918221 A GB 1918221A GB 168043 A GB168043 A GB 168043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- pulley
- pulleys
- belt
- groove
- 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
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
- F16H55/36—Pulleys
- F16H55/38—Means or measures for increasing adhesion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
168,043. Williams, M. F., and Plaisted, H. M. Aug. 19, 1920, [Convention date]. Pulleys.-In order to promote adhesion and to expel air between belts and high-speed pulleys, the face of the pulley is provided with transverse grcoves, which are deepest and widest in the middle and taper to each edge. To reduce the humming noise due to the serrated surface, the trailing flank of each groove is rearwardly inclined at a considerable angle to the radius. Figs. 1 and 2 show a crowned pulley in which the grooves are formed with a straight bottom C by a slotting-tool &c. acting parallel to the shaft, the grooves vanishing at the sides of the pulley. The leading faces A of the grooves may be radial, the other faces B being inclined. Air is discharged from the ends of the grooves, which are not covered by the belt. In flat-faced pulleys, the bottom of the groove is made concave, to produce the desired form. In the Specification as open to inspection under Sect. 91 (3) (a) the pitch and width of the grooves corresponded approximately to those of the wrinkles produced in a belt when it passes round a small pulley. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US168043XA | 1920-08-19 | 1920-08-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB168043A true GB168043A (en) | 1922-08-17 |
Family
ID=21779066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19182/21A Expired GB168043A (en) | 1920-08-19 | 1921-07-15 | Improvements in and relating to pulleys |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB168043A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2910871A1 (en) * | 1979-03-20 | 1980-09-25 | Bayerische Motoren Werke Ag | Toothed belt drive - has pulley teeth acting against belt tooth roots only at centre |
EP2665671A4 (en) * | 2011-01-21 | 2016-03-16 | Otis Elevator Co | System and method for reducing belt noise |
CN105782396A (en) * | 2016-03-24 | 2016-07-20 | 北京金风科创风电设备有限公司 | Toothed wheel, transmission device and variable pitch device of wind generating set |
CN105829767A (en) * | 2013-12-18 | 2016-08-03 | 因温特奥股份公司 | Pulley for lift system, lift system with pulley and method for monitoring lift system |
CN109488745A (en) * | 2018-12-15 | 2019-03-19 | 南通振强机械制造有限公司 | Anti-slip type belt pulley |
-
1921
- 1921-07-15 GB GB19182/21A patent/GB168043A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2910871A1 (en) * | 1979-03-20 | 1980-09-25 | Bayerische Motoren Werke Ag | Toothed belt drive - has pulley teeth acting against belt tooth roots only at centre |
EP2665671A4 (en) * | 2011-01-21 | 2016-03-16 | Otis Elevator Co | System and method for reducing belt noise |
US10336581B2 (en) | 2011-01-21 | 2019-07-02 | Otis Elevator Company | System and method for reducing belt noise |
CN105829767A (en) * | 2013-12-18 | 2016-08-03 | 因温特奥股份公司 | Pulley for lift system, lift system with pulley and method for monitoring lift system |
EP3084266A4 (en) * | 2013-12-18 | 2017-10-18 | Inventio AG | Pulley for lift system, lift system with pulley and method for monitoring lift system |
CN105782396A (en) * | 2016-03-24 | 2016-07-20 | 北京金风科创风电设备有限公司 | Toothed wheel, transmission device and variable pitch device of wind generating set |
CN109488745A (en) * | 2018-12-15 | 2019-03-19 | 南通振强机械制造有限公司 | Anti-slip type belt pulley |
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