GB274990A - Improvements in or relating to tractor-ploughs and cultivators - Google Patents
Improvements in or relating to tractor-ploughs and cultivatorsInfo
- Publication number
- GB274990A GB274990A GB1342426A GB1342426A GB274990A GB 274990 A GB274990 A GB 274990A GB 1342426 A GB1342426 A GB 1342426A GB 1342426 A GB1342426 A GB 1342426A GB 274990 A GB274990 A GB 274990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tractor
- implement
- spring
- pivoted
- rock shaft
- 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
- A01B63/08—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by the movement of the tractor
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)
- Agricultural Machines (AREA)
Abstract
274,990. Ball & Son, Ltd., W., and Savory, J. May 27, 1926. Implements with adjustable tool frames; adjusting and lifting parts.-Ploughing and cultivating elements carried by a tractor are mounted on a rock shaft adapted to be rocked by pawl and ratchet mechanism connected with one or both of the tractor driving wheels so that the rotation of the wheels may be utilized for raising the implements clear of the ground when required. The rock shaft 1 is mounted in bearings 2 projecting from a casting 3 which is provided with a journal 39 mounted in a bearing 40 bolted to the drawbar cap of the tractor. The bearings 2 and rock shaft 1 carrying the implement may be tilted about the journal 39 by means of a screw 43. The implement beams 6 are pivoted on lever arms 4 on the shaft 1 and one or more screws 9 are provided abutting against the lever arms for adjusting the beams about their pivots 5. A spring 17 surrounds a rod 12 pivoted on a bracket 15 on the differential casing 16 and passing through a swivelling bearing 13 in a bracket 11 on one of the beams 6, a nut 18 being provided to limit the movement through the bearing 13. The levers 4, rod 12, spring 17, &c. constitute a flexible parallel-motion connection with the tractor. A lever 19 on the rock shaft 1 is connected by links 20, 21 to a pivoted arm 22 carrying a spring- controlled pawl 26 adapted to engage with ratchet teeth 25 on the tractor wheel 24. The ratchet teeth 25 may be formed on a casting fastened to the wheel 24 by clips and having projections fitting between the spokes. The pawl 26 is thrown into engagement manually, by means of a handle 31, and it is thrown out of engagement automatically, when the implement has been raised far enough, by a proiection 32a on a casting 32. The hooked end of the arm 22 engages behind a detent 35 to hold the implement in the raised position. The detent is formed on a spring-controlled pivoted member 34 which is provided with a step and pedal 38 by which it may be moved to release the arms and allow the implement to fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1342426A GB274990A (en) | 1926-05-27 | 1926-05-27 | Improvements in or relating to tractor-ploughs and cultivators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1342426A GB274990A (en) | 1926-05-27 | 1926-05-27 | Improvements in or relating to tractor-ploughs and cultivators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB274990A true GB274990A (en) | 1927-08-04 |
Family
ID=10022702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1342426A Expired GB274990A (en) | 1926-05-27 | 1926-05-27 | Improvements in or relating to tractor-ploughs and cultivators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB274990A (en) |
-
1926
- 1926-05-27 GB GB1342426A patent/GB274990A/en not_active Expired
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