FARM MACHINERY 241 



Guiding Devices. To guide or steer cultivators, the 

 tongue or the wheels are often pivoted and connected to 

 levers in such a way as to be conveniently operated. 

 The pivoted tongue enables the operator to vary the angle 

 with which the tongue is attached to the cultivator. The 

 tongue may be attached to a treadle to be worked by the feet 

 and used continually for 

 guiding the cultivator, or 

 it may be attached to a 

 lever, permitting adjust- 

 ment for hillsides or for 

 the team when they can- 

 not be driven true to 

 the row. 



Fig. 149. A two-row cultivator with 

 OOme form Of treadle straddle seat placed well to the rear. The 

 . T . • i i gangs are guided by a treadle device. 



guide must be provided 



with the two-row cultivators, as it is not possible to guide 

 each pair of gangs independently. The treadle guide may be 

 attached to the gangs only, or it may govern the direction of 

 wheels at the same time. It is claimed that this double 

 arrangement requires less effort on the part of the operator, 

 for it is only necessary to change the direction of the wheels 

 and the team must do the work. On the other hand, the 

 shifting of the gangs alone gives a much quicker action. 



Seats. The seat of the riding cultivator is made in two 

 forms, the straddle seat and the hammock seat. The first 

 is placed upon a. stiff arm extending back from the frame, 

 and the second has the seat suspended on a metal strap be- 

 tween two arms extending back from the frame. The stradle 

 seat is more rigid and is universally used on lever and treadle- 

 guided cultivators. The hammock seat offers a good oppor- 

 tunity to operate the gangs with the feet, as the seat support 

 is not in the way. 



