1004 The Fowler Self-Lift Stetch Plough. [Jan., 



bodies, which are separately adjustable vertically: and each 

 complete frame with its plough bodies is also vertically 

 adjustable independently of the other by means of a wheel 

 at the front end, and two adjusting screws and blocks at the 

 hind end. The plough bodies are carried on standards, and 

 comprise shares, sled and mould- board, which may be of 

 various types to suit the particular land on which the plough 

 is expected to work. 



In conjunction with the adjusting screws and blocks at the 

 hind end, vertical guides are provided to prevent lateral move- 

 ment of either underframe. The front end of each underframe 

 is provided with lateral adjustment for draft. The under- 

 frames are raised and lowered by means of a four-chain lifting- 

 gear so arranged that each underframe is lifted at three points. 



The accurate turning of the plough at the headlands is en- 

 sured by automatic pawl catch gear, consisting of a circular 

 rack, fitted to each of the hind wheels, automatically preventing 

 the wheel on which the implement pivots when turning from 

 revolving in a backward direction. The pawl catch is arranged 

 in combination with the lifting-gear, so that when the under- 

 frames are in work the catch is held out of action, but when 

 the underframes are raised out of work, the catch automatically 

 engages itself with the toothed circular rack and prevents 

 backward movement of the pivot wheel. 



The plough as described above is suitable for working on 

 land where drainage furrows already exist, and will leave 

 new drainage furrows midway between the old ones, at a dis- 

 tance apart equal to the width of the land ploughed at each 

 bout, as shown in the accompanying sketch. 



For land where drainage furrows do not exist, a central plough 

 body, with double mould-board, will be provided, suspended 

 between the twin underframes, the object being to open out 

 a central furrow so that the plough can work as above 

 described and plough the fields in " lands " similarly to the 

 method adopted with ordinary horse ploughs. 



The right hand underframe which is a Uttle in front of the 

 other turns the first furrow into one half of the open furrow, 

 where one exists — which is always the case when the land 

 has been ploughed in " st etches " — and the first plough on 

 the left-hand frame turns a furrow into the other half of the 

 open furrow. If no open furrow exists, the central plough 

 opens up one. The last plough on each frame leaves half an 

 open furrow on each side of the land ploughed, and when the 

 implement is turned round at the headland and commences 



