GB440377A - Improvements relating to variable-speed chain gearing - Google Patents
Improvements relating to variable-speed chain gearingInfo
- Publication number
- GB440377A GB440377A GB2123134A GB2123134A GB440377A GB 440377 A GB440377 A GB 440377A GB 2123134 A GB2123134 A GB 2123134A GB 2123134 A GB2123134 A GB 2123134A GB 440377 A GB440377 A GB 440377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chain
- gearing
- change
- sprockets
- speed
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
- B62M9/124—Mechanisms for shifting laterally
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
440,377. Change-speed chain gearing. ENFIELD CYCLE CO., Ltd., and SMITH, F. W., Hewell Road, Redditch, Worcestershire. July 20, 1934, No. 21231. [Class 80 (ii)] [See also Group XXXI] Change-speed gearing for tandem cycles &c. comprises a driving chain b, Fig. 1, which passes over and under a pair of jockey sprockets c<1>, c<2> and is displaceable laterally therewith for selective engagement with driven sprockets a<1>, a<2>, a<3>, Fig. 2, of different sizes. The jockey sprockets c<1>, c<2> are carried on the two arms of a bell-crank lever d which is slidable on a fixed transverse pivot spindle e under control from a pivoted striking fork h in turn operated through a Bowden cable or like control i<1>, i<2>. A tension spring j acting on the lever d maintains the chain tension elastically.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2123134A GB440377A (en) | 1934-07-20 | 1934-07-20 | Improvements relating to variable-speed chain gearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2123134A GB440377A (en) | 1934-07-20 | 1934-07-20 | Improvements relating to variable-speed chain gearing |
Publications (1)
Publication Number | Publication Date |
---|---|
GB440377A true GB440377A (en) | 1935-12-30 |
Family
ID=10159397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2123134A Expired GB440377A (en) | 1934-07-20 | 1934-07-20 | Improvements relating to variable-speed chain gearing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB440377A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2564576A (en) * | 1945-09-28 | 1951-08-14 | Juy Lucien Charles Hippolyte | Variable-speed gear for bicycles, tandems, and the like |
US4226131A (en) * | 1977-10-14 | 1980-10-07 | Maeda Industries, Ltd. | Bicycle rear derailleur |
-
1934
- 1934-07-20 GB GB2123134A patent/GB440377A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2564576A (en) * | 1945-09-28 | 1951-08-14 | Juy Lucien Charles Hippolyte | Variable-speed gear for bicycles, tandems, and the like |
US4226131A (en) * | 1977-10-14 | 1980-10-07 | Maeda Industries, Ltd. | Bicycle rear derailleur |
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