THE IMPLEMENTS OF THE FARM. 21 



generated in a separate boiler, and by means of a tube 

 from the steam chamber, steam is supplied to the cooking 

 pan that holds the food. There may be two pans, one on 

 each side of the boiler, and these turn on axes for emptying. 



Hay and Corn drying Machines. A portable or fixed 

 receiver for the hay or corn sheaves is connected with a 

 tube leading from a fan, and passing through a furnace to 

 heat the blast, or the hot air may be drawn from the 

 furnace to feed the fan, and by it forced through the hay, 

 thus carrying off the moisture. 



A steam corn dryer (Paxman's) will dry 24 bushels of 

 damp grain per hour. It consists of four concentric 

 cylinders 12 feet long. The centre one is 12 inches in 

 diameter for steam from the boiler. It has perforated 

 screw blades on the periphery for working the grain 

 forward which in its progress is acted upon by two steam- 

 heated surfaces and a blast of heated air meeting it. The 

 inner cylinder is driven by spur gear and the fan by a strap 

 and pulley. Gibbs' drying cylinder dries by means of 

 heated air forced into a louvre board chamber inside, 

 which dries the grain as it falls in a shower upon the 

 louvre board from cells in the inner periphery of the 

 cylinder. It dries 100 bushels per hour. 



Grain cleaners and separators consist of rotary screens 

 adjustable so as to separate seeds of weeds, and sort the 

 grain into different sizes. The more recent of this class is 

 Shield and Crockett's rotary screen, in which the grain is 

 separated in a spiral path. In another class by exhaust 

 fans, or dressing machines, the grain is separated accord- 

 ing to its specific gravity. In a third class the grain 

 flows down short inclines on the louvre board principle. 

 And in a fourth class magnets are placed on an incline 



