FOR AMERICAN VINES. 



25 



than that applied to the second, and greater than the trac- 

 tion of the capstan or the cable. In practice the anchor 

 plate P gives way before P', therefore the anchor plate P 

 requires to be fixed more carefully. This is the greatest 

 defect of the system. 



The plough made on the Brabant system is of great power, 

 all the parts being strengthened and strongly braced together. 

 When the plough hauled by the cable reaches the fixed pulley, 

 the plough is thrown out of gear, leans on the mould-board, 

 and comes out of the furrow. The coupling clutch is thrown 

 out of gear, the capstan stops revolving, and the plough is 

 lifted up, placed on a small two-wheeled truck, and hauled 

 by a horse to the starting point of the new furrow (Fig. 8). 

 To regulate the unwinding of the cable, the driver acts on the 



Fig. 8. Plough ready to be hauled back. 



drum with a wooden lever as a brake. While this is done 

 the chain of the fixed pulley is shifted along the anchoring 

 chain to a distance equalling the width of the furrow, so as 

 to have the chain opposite the furrow to be opened, and the 

 operation is again repeated. 



If the field to be ploughed is too large to allow the work 

 being done from one position of the capstan, without detri- 

 mentally increasing the length of the cable, it is partitioned 

 in a series of rectangular blocks, the position of the capstan 

 being changed as many times as there are rectangles. We 



