GB791008A - Improved actuating means for the selecting mechanism of variable-speed gearboxes - Google Patents
Improved actuating means for the selecting mechanism of variable-speed gearboxesInfo
- Publication number
- GB791008A GB791008A GB1801055A GB1801055A GB791008A GB 791008 A GB791008 A GB 791008A GB 1801055 A GB1801055 A GB 1801055A GB 1801055 A GB1801055 A GB 1801055A GB 791008 A GB791008 A GB 791008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collar
- change
- gear
- conduits
- enlargement
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
- F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
- F15B11/123—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators with fluid-operated stops
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gear-Shifting Mechanisms (AREA)
- Actuator (AREA)
Abstract
791,008. Change-speed control. BROWN & SONS (HUDDERSFIELD), Ltd., D. Sept. 24, 1956 [June 22, 1955], No. 18010/55. Class 80 (2). A change-speed gear selector rod a, moved axially one way or the other to a gear engaged position and having an intermediate neutral position, is formed with an enlarged portion b and carries slidably a collar e, the various parts lying in different diameter cylinders c, f, g to which hydraulic or pneumatic pressure fluid is supplied through conduits h, j, k. The end area of the collar e subjected to pressure in the bore f is greater than the end area of the enlargement b subjected to pressure in the bore c. When pressure fluid is applied simultaneously through the conduits j, h to the bores f, c, the collar e is moved to its extreme right-hand position in the Figure and simultaneously the rod a and enlargement b are moved leftwards until the enlargement engages the collar. Thus a positively located intermediate neutral position of the selector rod a is obtained. Leftwards or rightwards movement of the selector rod to establish a selected ratio is obtained by admitting pressure fluid through one only of the conduits h, k to the bores c, g. One or more selector rods according to the invention may be applied to a change-speed gear having the selection and establishment of the different ratios controlled by a gear shift lever arranged to make an are or a complete circle of step-by-step movements. In a change-speed gear having more than one selector rod, suitable interlocking means are provided to prevent two gear ratios being simultaneously engaged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1801055A GB791008A (en) | 1955-06-22 | 1955-06-22 | Improved actuating means for the selecting mechanism of variable-speed gearboxes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1801055A GB791008A (en) | 1955-06-22 | 1955-06-22 | Improved actuating means for the selecting mechanism of variable-speed gearboxes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB791008A true GB791008A (en) | 1958-02-19 |
Family
ID=10105086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1801055A Expired GB791008A (en) | 1955-06-22 | 1955-06-22 | Improved actuating means for the selecting mechanism of variable-speed gearboxes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB791008A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3213757A1 (en) * | 1981-04-16 | 1983-01-20 | Autóipari Kutató Intézet, Budapest | Pneumatic piston shift drive, especially for vehicle gearboxes |
US4889217A (en) * | 1986-09-24 | 1989-12-26 | Ab Volvo | Motor vehicle clutch for a mechanical, multiple-speed automatic transmission |
DE3837777A1 (en) * | 1988-11-08 | 1990-05-10 | Kloeckner Humboldt Deutz Ag | HYDRAULIC GEARBOX |
-
1955
- 1955-06-22 GB GB1801055A patent/GB791008A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3213757A1 (en) * | 1981-04-16 | 1983-01-20 | Autóipari Kutató Intézet, Budapest | Pneumatic piston shift drive, especially for vehicle gearboxes |
US4889217A (en) * | 1986-09-24 | 1989-12-26 | Ab Volvo | Motor vehicle clutch for a mechanical, multiple-speed automatic transmission |
DE3837777A1 (en) * | 1988-11-08 | 1990-05-10 | Kloeckner Humboldt Deutz Ag | HYDRAULIC GEARBOX |
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