GB604633A - Improvements in variable speed reduction gears - Google Patents
Improvements in variable speed reduction gearsInfo
- Publication number
- GB604633A GB604633A GB3227045A GB3227045A GB604633A GB 604633 A GB604633 A GB 604633A GB 3227045 A GB3227045 A GB 3227045A GB 3227045 A GB3227045 A GB 3227045A GB 604633 A GB604633 A GB 604633A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clusters
- variable
- eccentrics
- eccentric
- 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
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
- F16H29/00—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
- F16H29/02—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts
- F16H29/04—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts in which the transmission ratio is changed by adjustment of a crank, an eccentric, a wobble-plate, or a cam, on one of the shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
Abstract
604,633. Variable-speed ratchet gearing. DENNISON, E. A. Nov. 29, 1945, Nos. 32270/45 and 8495/46. [Class 80 (ii)] A variable-speed ratchet gear for a graindischarge controlling device such as described in Specification 546,352, [Group XXX], comprises two or more clusters of eccentrics or cams 31, 32, 33, 34 of varying throw, slidable along their shaft 19, against the springs 36, so that any eccentric of the cluster's may operate a bell-crank lever 29 carrying a positive pawl 26 engaging with a wheel 25 on the driven shaft 20. The clusters have a concentric portion 35, the radius of which is equal to the smallest radius of the eccentrics, to provide a neutral position. The selection of speed ratio is performed by moving the clusters axially against the springs 36 by sliding a control plate 38, having square and oblique surfaces 44, 45 respectively, alternately on its opposite sides and in staggered relationship to double the number of available speeds, between the thrust members 37 rigid with the eccentric clusters. Operation of the control member is by a screw 39 and a nut 43, the latter having a visual position indicator 46.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3227045A GB604633A (en) | 1945-11-29 | 1945-11-29 | Improvements in variable speed reduction gears |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3227045A GB604633A (en) | 1945-11-29 | 1945-11-29 | Improvements in variable speed reduction gears |
Publications (1)
Publication Number | Publication Date |
---|---|
GB604633A true GB604633A (en) | 1948-07-07 |
Family
ID=10335993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3227045A Expired GB604633A (en) | 1945-11-29 | 1945-11-29 | Improvements in variable speed reduction gears |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB604633A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1168197B (en) * | 1960-09-26 | 1964-04-16 | Mefina Sa | Device for changing the transmission ratio between a drive shaft and a driven shaft, especially for sewing machines |
-
1945
- 1945-11-29 GB GB3227045A patent/GB604633A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1168197B (en) * | 1960-09-26 | 1964-04-16 | Mefina Sa | Device for changing the transmission ratio between a drive shaft and a driven shaft, especially for sewing machines |
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