GB578338A - Improvements relating to variable speed gears for cycles and the like - Google Patents
Improvements relating to variable speed gears for cycles and the likeInfo
- Publication number
- GB578338A GB578338A GB349944A GB349944A GB578338A GB 578338 A GB578338 A GB 578338A GB 349944 A GB349944 A GB 349944A GB 349944 A GB349944 A GB 349944A GB 578338 A GB578338 A GB 578338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sprocket
- cycles
- fitzpatrick
- bracket
- slide
- 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
- B62M9/1244—Mechanisms for shifting laterally limiting or positioning the movement
-
- 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
-
- 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
- B62M9/126—Chain guides; Mounting thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gear-Shifting Mechanisms (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
578,338. Variable-speed gearing. FITZPATRICK, H., and FITZPATRICK, A. A. Feb. 25, 1944, No. 3499. [Class 80 (ii)] In a chainshifting mechanism for cycles and the like in which jockey sprocket A is carried on a slide B which is moved up and down an inclined guide C so that the sprocket occupies the same relative position to each of the different size sprockets 1, 2 or 3 of the wheel, the guide C forms part of a bracket D that can be turned about a vertical axis on a clip G secured to the frame and positively fixed by means of serrations E, F and a screw H in any position. A tensioning pulley M is carried by an arm L pivoted about the axle b of the sprocket A and tensioned by a spring N in a telescopic dust-cover O. The slide B is moved against this spring tension by a cranked lever k from a cable k<3> which may be operated by a control lever in conjunction with a plate or bracket as described in Specification 571,608.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB349944A GB578338A (en) | 1944-02-25 | 1944-02-25 | Improvements relating to variable speed gears for cycles and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB349944A GB578338A (en) | 1944-02-25 | 1944-02-25 | Improvements relating to variable speed gears for cycles and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB578338A true GB578338A (en) | 1946-06-25 |
Family
ID=9759487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB349944A Expired GB578338A (en) | 1944-02-25 | 1944-02-25 | Improvements relating to variable speed gears for cycles and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB578338A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107554682A (en) * | 2016-06-30 | 2018-01-09 | 株式会社岛野 | Bicycle tensioner apparatus and bicycle stretcher |
CN108406754A (en) * | 2018-05-30 | 2018-08-17 | 北京三维精致科技有限责任公司 | A kind of leading screw servo articulated mechanical arm |
CN109703688A (en) * | 2019-01-08 | 2019-05-03 | 珠海迪瑞乐科技有限公司 | Bicycle chain-putting mechanism and bicycle chain puller |
-
1944
- 1944-02-25 GB GB349944A patent/GB578338A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107554682A (en) * | 2016-06-30 | 2018-01-09 | 株式会社岛野 | Bicycle tensioner apparatus and bicycle stretcher |
CN107554682B (en) * | 2016-06-30 | 2020-08-07 | 株式会社岛野 | Bicycle tensioner device and bicycle tensioner |
CN108406754A (en) * | 2018-05-30 | 2018-08-17 | 北京三维精致科技有限责任公司 | A kind of leading screw servo articulated mechanical arm |
CN109703688A (en) * | 2019-01-08 | 2019-05-03 | 珠海迪瑞乐科技有限公司 | Bicycle chain-putting mechanism and bicycle chain puller |
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