FARM MACHINERY 



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lengths to suit conditions, and vary from four to eight in 

 number. The latter may be used in handling manure. 



Fig. 

 2 the 

 fork. 



171. Types of hay forks in general use: 1 is the simple harpoon, 

 double harpoon, 3 the derrick fork, and 4 a four-tined grapple 



Slings. Hay slings are webs made up of ropes and stick 

 which are placed under and in the load of hay in such a way 

 that the projecting ends may be brought together and the 

 hay lying in the sling raised at one time. To release the 

 hay, a spring catch is provided in the middle which allows 

 the sling to part when tripped. 



Hay may be handled very quickly with slings; as much 

 as 1000 pounds may be handled at one time if the equipment 

 is strong enough. Thus a wagon- 

 load of hay may be removed in 

 three or even two sling loads. To 

 obviate the trouble of placing a 

 sling within a load, a fork may be used for all but the last 

 which may be taken up clean by a sling on the rack. 



Carriers. Carriers are made specially for forks, for slings, 

 or for both. The latter kind is known as a combination car- 

 rier. The size varies much with the service. Light carriers 

 are used with forks, and heavy carriers with double trucks 

 are used with slings. Carriers which may be used in either 

 direction from the stop in the track are called "two-way 



Fig. 172. A hay sling. 



