TILLAGE MACHINERY ; JOI 



cutting them into short lengths. Stalk hooks are pro- 

 vided which gather the stalks in front of the cylinder. 

 Two types are found upon the market, the spiral and the 

 straight knife cutters. The spiral knife cutter carries 

 practically all of the weight of the machine on the cylin- 

 der head while in operation, the side wheels being raised 

 and the cylinder head brought in contact with the ground. 

 Stiaight knife cutters have the cylinder head mounted in 

 a frame, and w r hen placed in operation are forced to the 

 ground with spring pressure. The latter machine is much 

 more pleasant to operate, as it rides more smoothly. 

 Some cutters are equipped with reversible knives with 

 two edges sharpened. A stalk cutter attachment is made 

 for a cultivator carriage. The implement in general may 

 be had as a single- or double-row machine. 



