E 37^ 3 

 Article LIV, 



A Defcription of Wm. Winlaw's Patent MILL, 

 made upon a Plan entirely neWy for feparaiing the 

 Grain from the Ears of Corn, in place of 'Thrcjhing. 



[With an Engraving.] 



THIS mill was tried in June 1785, in the 

 prefence of many gentlemen, and gave the 

 greatefl fatisfadion; and fince then, to a great 

 number of perfons at fundry times, who all ex- 

 prefled' great pleafure at feeing a performance fo 

 compleat, and the machine conftruded upon a plan 

 entirely new. 



Upon trial, there were pafTed through the mill 

 one bufliel of the heads of wheat in one minute, 

 with very moderate labour to the man that turned 

 it; and, by experiment, it is found that four 

 bulhels of the ears will yield one bufhel of clean 

 grain. This being allowed, the difference will 

 clearly appear betwixt the expedition of the mill 

 and the labour of a threlher; allowing that a man 

 will threfh fix bufhcls in a day, of eight hours 

 work, the mill will clear that quantity in twenty- 

 four minutes, and to an incomparably greater de- 

 gree of perfedion than can poflibly be done by the 

 flail; for it feparates every grain from the cars, 



B b 2 which 



