GB876498A - Variable mechanical advantage lever system - Google Patents
Variable mechanical advantage lever systemInfo
- Publication number
- GB876498A GB876498A GB6016/59A GB601659A GB876498A GB 876498 A GB876498 A GB 876498A GB 6016/59 A GB6016/59 A GB 6016/59A GB 601659 A GB601659 A GB 601659A GB 876498 A GB876498 A GB 876498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mechanical advantage
- pitman
- effort
- feb
- arm
- 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
- 239000012530 fluid Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
- G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
- G05G7/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance altering the ratio of motion or force between controlling member and controlled member as a function of the position of the controlling member
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
876,498. Linkwork. POWRIE, N. C., and ROGAN, D. S. Feb. 20, 1959 [Feb. 24, 1958; July 8, 1958], No. 6016/59. Class 80 (3). [Also in Group XXXIV] For applying a thrust with a variable mechanical advantage to a pitman 24, for operating the brakes of a motor vehicle, a pendant lever 10, pivoted at 12, has an effort arm 16 and working arm 18 formed with the cam faces 20, 21, 22, engaging a roller follower 26 attached to the pitman, so that when the effort arm 16 is rotated anti-clockwise against reaction of a spring 14, the lift of the cam nose 22 first causes the pitman to move with a low mechanical advantage to take up slack in the system, after which the slope of the face 20 provides a high mechanical advantage to provide the braking effort. Further movement of the pedal reduces the mechanical advantage again and allows the pedal to be pumped if fluid in an associated hydraulic system is low.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA876498X | 1958-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB876498A true GB876498A (en) | 1961-09-06 |
Family
ID=25579127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6016/59A Expired GB876498A (en) | 1958-02-24 | 1959-02-20 | Variable mechanical advantage lever system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB876498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2370098A (en) * | 2000-12-16 | 2002-06-19 | Federal Mogul Brake Syst Ltd | A pedal assembly having a progressively changing mechanical advantage or velocity ratio |
-
1959
- 1959-02-20 GB GB6016/59A patent/GB876498A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2370098A (en) * | 2000-12-16 | 2002-06-19 | Federal Mogul Brake Syst Ltd | A pedal assembly having a progressively changing mechanical advantage or velocity ratio |
| WO2002047949A1 (en) | 2000-12-16 | 2002-06-20 | Delphi Technologies Inc. | Brake control systems |
| GB2370098B (en) * | 2000-12-16 | 2004-10-27 | Federal Mogul Brake Syst Ltd | Brake control systems |
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