GB928065A - Improvements in or relating to tractor-implement combinations - Google Patents
Improvements in or relating to tractor-implement combinationsInfo
- Publication number
- GB928065A GB928065A GB1326861A GB1326861A GB928065A GB 928065 A GB928065 A GB 928065A GB 1326861 A GB1326861 A GB 1326861A GB 1326861 A GB1326861 A GB 1326861A GB 928065 A GB928065 A GB 928065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- exhaust
- draft
- tractor
- april
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
- A01B63/1117—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements using a hitch position sensor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
928,065. Tractor power-lift mechanisms. MORRIS MOTORS Ltd. April 3, 1962 [April 13, 1961], No. 13268/61. Class 79(1) A tractor hydraulic power-lift mechanism having automatic draft control in which thrusts in the upper link against pin 8 operate against a spring 6 to move an arm 42 whereby a hydraulic control valve is moved to restrict the flow of exhaust fluid from a working ram is characterised in that the valve comprises two coaxial, relatively slidable, tubular ported members 29, 30 which are held by a spring 31 against stops 32, 33 in the valve body 28. In this position pressure fluid from the ram 25 has a free passage to exhaust after passing through holes 55 and 57 in a main lift plunger 45 and through ports 35, 36, 37 in the valve. The member 29 may be set to allow a particular exhaust flow and therefore a particular draft, by movement of a hand lever coupled to shaft 39 operating eccentric 38 and the draft is then automatically adjusted in operation by arm 42 moving member 30 to restrict or allow the exhaust flow. A non- return valve 51 passes oil from a continuously acting pump along the path shown by the arrows in Fig. 6. The valve 60 regulates the rate at which the implement is dropped as described in Specification 639,280. A duct 54 affords connection to an auxiliary power cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1326861A GB928065A (en) | 1961-04-13 | 1961-04-13 | Improvements in or relating to tractor-implement combinations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1326861A GB928065A (en) | 1961-04-13 | 1961-04-13 | Improvements in or relating to tractor-implement combinations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB928065A true GB928065A (en) | 1963-06-06 |
Family
ID=10019887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1326861A Expired GB928065A (en) | 1961-04-13 | 1961-04-13 | Improvements in or relating to tractor-implement combinations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB928065A (en) |
-
1961
- 1961-04-13 GB GB1326861A patent/GB928065A/en not_active Expired
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