GB205924A - Improvements in or relating to cranks and the like - Google Patents
Improvements in or relating to cranks and the likeInfo
- Publication number
- GB205924A GB205924A GB2151422A GB2151422A GB205924A GB 205924 A GB205924 A GB 205924A GB 2151422 A GB2151422 A GB 2151422A GB 2151422 A GB2151422 A GB 2151422A GB 205924 A GB205924 A GB 205924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crank
- disc
- arm
- recess
- pivot
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
205,924. Payne, A. E. H. Aug. 8, 1922. Addition to 193,574. Cranks; crank linkages.-Comprises a modification of the crank mechanism set forth in the parent Specification, adapted to increase the arc of crank effectiveness in power or other drives. The crank arm D is pivoted at E within a recess or the like C formed in a main disc cr plate A carried by a shaft B rotatably mounted in bearings, the pivot E being eccentric to the shaft B. The arrangement is such that if, for example, the crank-pin F is connected through a link G to a driving member reciprocating between the limits H - - H<3>. the disc is directly rotated by engagement of the arm D with the forward wall of the recess C except at each end of the reciprocatory stroke, when the disc momentarily overtakes the arm D owing to the eccentric displacement of the pivot E. Thus at one end of the stroke the disc moves in advance of the crank arm between the positions F<2>, F<3>, the crank arm subsequently overtaking the disc between the positions F<3>, F<4>. To retain the arm D in the recess, the outer end thereof may be formed with an overhanging lug or lip engaging the back of the disc. Two such crank devices may be provided for use on a bicycle or a machine driven by foot power. Instead of the recess C a rooking space of any convenient form may be provided on the disc A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2151422A GB205924A (en) | 1922-08-08 | 1922-08-08 | Improvements in or relating to cranks and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2151422A GB205924A (en) | 1922-08-08 | 1922-08-08 | Improvements in or relating to cranks and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB205924A true GB205924A (en) | 1923-11-01 |
Family
ID=10164203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2151422A Expired GB205924A (en) | 1922-08-08 | 1922-08-08 | Improvements in or relating to cranks and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB205924A (en) |
-
1922
- 1922-08-08 GB GB2151422A patent/GB205924A/en not_active Expired
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