Farm Machinery 457 



a windrow. Side-delivery rakes collect the hay and push it 

 to one side in a continuous windrow by means of a system of 

 moving forks. Sweep rakes have a series of long wooden fin- 

 gers that are dragged along the ground. The implement is 

 hitched between two horses that are kept some distance apart. 

 When a load has been secured, the team is driven to a point 

 where the hay is to be stacked. 



Tedders. Tedders are used for shaking up hay that has be- 

 come wet or when there is a large yield that will not cure prop- 

 erly without being turned. They have a number of forks that 

 turn the hay over as the implement is drawn over the ground. 



Hay-loaders. A labor-saving implement that is much 

 used in handling hay is the loader (Fig. 59). One of these 

 machines is attached to the rear of a hayrack and as the wagon 

 is moved forward the hay is collected by a series of fingers 

 and conveyed to the back end of the rack from which it is 

 distributed on the load by hand. 



Stackers. There are several types of stackers in use. A com- 

 mon form is shown in Fig. 61. This equipment is almost indis- 

 pensable where large quantities of hay are stacked each year. 



Harpoon forks and slings. For getting the hay into the 

 barn or shed, harpoon forks or slings are used. These appli- 

 ances are attached to the hay on a load, and by means of a rope 

 and pulley the fork or sling with the hay holding to it is elevated 

 into the barn and slid along a track to the point where it is to 

 be deposited. 



228. Small-grain, corn, and potato harvesters. The im- 

 plements used for harvesting small grains, corn, and potatoes 

 have been described in the chapters dealing with these crops 

 and need not be further explained. 



229. Threshing machines. In the threshing machine, 

 (Fig. 52) the grain in the bundle is conveyed to a cylinder where 

 it is removed from the head in passing between the cylinder 

 and a concave. The grain sifts down through screens to an 

 auger that delivers it from the machine. In its passage through 



