/ 



€a8 



^IMPROVEMENT OF 



then at the time-of fowlnsf to guide the wheel next 



' *, 



to the part lafl 



fown exadlly in the rut, which was laft made ; by which guide the 

 rows willallof them be accurately at nine inches diftant from each 

 'Other. 



V 



'The Simpiktty of this Drill-Plough 



I 



The fimplicity of this machine confifts firfl: in its having only 



a feed-box, and nut both a hopper and a feed-box 

 Mr. Cook's patent drill-plough. 



Rev 



2. 



Thefl 



hich eondud the feed from the "bottom of th 



feed-box into" the drill-furrows, are not disjoined about the middle of 



them to permit the 



part to move to th 



o 



ht or left, when 



the horfe fwerves from the line, in which the 



pafs 



as 111 



Mr. Cook's patent drill-plough ; which is done in this machine by 

 thefimpleuniverfal joint at s, Plate I. fig. i. 



3 



In this mach 



the h 



or fhafts behind, between which 



the perfon walks, who guides the coulters, are fixed both to the coul- 

 ter-beam, and to the axle-tree ; whereas in Mr. Cook's patent plough 

 thefe are all of them moveable joints like a parallel rule, for the pur- 

 pofe of counterading the fwerving of the horfe ; which in this ma- 

 chine is done by the finqiple univerfal joint at 

 mentioned. 



4. The altering the dimenfions of the holes in the axis of the 



•^j fig. I, 'Plate I. before 



feed-box by only turning a fcrew, fo as to adapt them to all kinds of 

 feeds, which are ufu ally fown on field-lands. 



5. The firong brulh of brifltles, which fweep over thfe excavations 

 •of the cylinders beneath the feed-box, ftrickle them with fuch ex- 



adlnefs, that no fupernumerary feeds efcape, and yet none of them are 



J 



in 



( 



