HAYING MACHINERY 179 



the load hauled and placed upon the teeth of the stacker 

 and the rake backed away. 



There are three general types of sweep rakes: (i) the 

 wheelless, with the horses spread to each end of the 



FIG. 132 A TWO-WHEEL SWEEP RAKE. THE TEETH ARE RAISED BY THE 

 DRIVER SHIFTING HIS SEAT 



rake ; (2) the wheeled rake, with the horses spread in 

 the same manner; and (3) the three-wheel rake, with the 

 horses directly behind the rake and working on a tongue. 



FIG. 133 A THREE- WHEEL SWEEP RAKE. THE DRIVER IS AIDED IN LIFT- 

 ING THE LOADED TEETH BY THE PULL OF THE HORSES 



The latter are the more expensive. They offer advan- 

 tages in driving the team, but are a little difficult to guide 

 (Figs. 132 and 133). 



256. Hay stackers are made in two general types : the 

 overshot and the swinging stacker. In the overshot the 



