206 



FARM MACHINERY 



were mounted on wheels, and hence were quite portable. The 



early horse power consisted 

 of a vertical shaft mounted 

 between beams, to which a 

 sweep was attached. The 

 power was taken by a tumb- 

 ling rod from a master 

 wheel mounted above. This 

 type earned the name of 

 "cider-mill" power. Tread 

 power was used largely to 

 operate the early threshers, 

 and water power to some 

 extent. John A. Pitts fin- 

 ally located a factory at 

 Buffalo, New York, and the 

 "Buffalo Pitts" thresher be- 

 came well known through- 

 out the country. This ma- 

 chine is manufactured to-day 

 with some of the original 

 features. John Pitts died in 

 1859. Hiram A. Pitts moved 

 to Chicago in 1852 and 

 established a factory which 

 built what was known as 

 the "Chicago Pitts." He 

 died in 1860. Much credit 

 is due to these men for the 

 development of a practical 

 threshing machine. 



THE MODERN THRESH- 

 ING MACHINE OR 

 SEPARATOR 



283. Operations. The 

 threshing machine as it is 

 constructed to-day per- 

 forms four distinct opera- 



