THE DRILL PLOUGH^ 



599 



w 



tree that the wheels will then follow in the fame line with the 



horfe. 



ee are wheels of four feet In diameter, the nave of one of which 



has on it a cad-iron wheel at//, for the purpofe of turning the axis 

 of the feed-box, which has a fimilar wheel of one fourth its diame- 

 ter ; whence the axis of the feed-box revolves four times to one re^ 

 volution of the wheel. 



id 



of 



r 



Conjlrudllon of the feed-box. 



Plate XL Fig. 2. 



J 



1 



he 



:c 



\ 



This confifts of boards abo 



an 



ch in thicknefs, is forty-eight 



inches long within, twelve inches deep 



welve inch 



and fix inches wide at bottom 



divided into fi 



ide at top, 

 . in which 



be put, as reprefented in Plate XI. Fig. 2. and fliould 



the corn is to ^ 



alfo have a cover with hinges to keep out the rain, and is to be pi 



ed in part over, and in part before, th 



c 



01 



th 



o 



at 



SS 



Plate X. Fig 



Beneath the bottom of the feed box paffes a wooden cylinde 



at 



hh, Plate XI. Fio;. 2. with excavations in its periphery 



g 



m the fix cells of the feed-box, Imnop q 

 fix oblique flues //, which are made of t; 



deliver it 



id to c 



and crofs each 



ler, as reprefented in the plate. The ufe of the feed -flues thus 

 fedins each other is to increafe the leno;th of the inclined furfa 



on 



hich the feed defcend 



h 



f fix or eight grains be delivered 



t) 



they mi-ht fo feparate by th 



fricl 



ion in 



defcending, as 



be fown together in one point, which might be liable to p 



duce tuffocks of corn. 



As thefe feed^flues crofi 

 coulter-beam at c c. Plate 



of the round h 



thofe at the other end : and 



9 



each other, before they pafs through the 

 X. Fig. I. it was neceffary to make three 



11 at one end backwarder than 

 account to ufe iron flaples 



of the coulter-bea 



or 



rings 



