FOE AMERICAN VINES. 35 



It is provided with a hook, to hook on the end of the cable, 

 and is connected to the plough by three chains, the two lateral 

 serving to fix it askew to the direction of the plough. 



The advantages of this device are as follows : 1st., it 

 allows a very straight furrow to be turned, even if the cable 

 pulls sideways, and therefore to only displace the gin every 

 five or six furrows. The ploughman has only to work the 

 side chains in the necessary mariner, which is done without 

 loss of time ; 2nd, it prevents the plough from coming out 

 of the ground, on account of the height of the point of 

 traction. In fact, in most systems of gins it is necessary to 

 alter the rear of the frame to keep the plough in position. 

 This is usually done through the weight of the ploughman 

 sitting on a seat fixed at the rear between the stilts. 



The plough used by Bourguignon is the simple Brabant, 

 specially constructed by Bajac for ploughing to a depth of 

 19 J to 24 inches, and provided with the following con- 

 trivance for carrying it back after each furrow has been 

 ploughed : The rear of the frame is traversed by an iron rod, 

 threaded at one end, the other end carrying a small wheel ; 

 a handle nut allows the rod to be raised or lowered. When 

 lowered the wheel rests on the ground, the body of the 

 plough being lifted, and, resting on the small wheel and the 

 wheels of the forecarriage, is easily transported. The height 

 of the small wheel can be regulated, so that, when working, 

 the plough rests on it ; a rolling friction being substituted 

 far the sliding friction of the frame. The Bajac plough is 

 shown in Fig. 15, without the lifting device. 



Fig. 15. Bajac's Trenching Plough. 

 C 2 



