SUTPLEMENT. 



SCIENCE AND ART OF AGRICULTURE. 



1321 



the machines. The clean corn passes into the elevators s ; from thence it is carried up into the granary, 

 and delivered into the weighing machine, t, by small elevators made of sheet iron, with wooden hacks 

 and bottoms fixed to a pitch chain, revolving round a studded wheel ten inches in diameter, and with 

 eight studs at the upper end, and a small wooden roller at the bottom, at eleven turns per minute. 



The corn is delivered into the weighing-machine box, 1, and accumulates until there is the weight of a 

 measure when the box turns on its axle, and the corn is emptied into the spo.it which. conveys It Into 

 whatever bin,, it may be wanted in. At the same time the part 2 turns up. and is (died as the other, 

 and when fu 1 descends as the other, and so on, while the threshing is going forward : 3 is a eight 

 which r slides up and down a rod fixed at right angles from the bottom of the weighing machine if 

 he corn ^ heavy, slide this up until it will balance a bushel of corn similar to what s to be threshed ; 

 fli$™ slide it downwards. From the axle of this box. a small rod Proceeds to two s a wheels 

 behind the index u, which turns two lingers that revolve round the face of this index , it is ngurea 

 from 1 to 10 For every movement the weighing bucket makes, the longest finger moves over the 

 space of one and for evely ten, the other finger moves one. At the end of the threshing this finger 

 l^f denote nret"y accurately the quantity threshed : for instance, were the long finger at 5. and the 

 Thort one at 9 t here wwild be ninety-five bushels of corn in the binn ; x x x are pinions five inches 

 and a quarteM, diameter, each working in wheels (g • ;/) twenty-one niches in Mre4 

 which eive motion to the corn elevators, and likewise to the tail elevators by a pitch chain revoking 

 round the stod wheel «• Z "iving motion to the shaft of the elevators at eleven times per minute. 

 The buckets are made of ftin boafds fixed on two pitch chains turned by two stud wheels ten niches 



