13'JO 



ENCYCLOPAEDIA OF AGRICULTURE. 



Sl'PFl.EMF.NT. 



descending to the floor below, with a door into the straw-house, and one into the cattle-yard. When 

 the corn is only to be passed through the first winnow inn machine, the corn elevators and second machine 

 are thrown out of geer, and the corn delivered on the second floor, where the bruising machine is fixed. 

 The under floor contains the second winnowing machine with the lower end of the corn elevators. If 

 necessary, the dean corn may be delivered on this floor, instead of into the elevator trough : the ends of 

 both machines are inserted in the chair-chamber. The corn is put between two grooved rollers, when 

 the grain is beaten out of the ear by four beaters fixed on the threshing cylinder, and thrown into the 

 rake or first shaker, when it folia through the sparred bottom into the winnowing machine hopper, while 



the straw is raked for- 

 ward and thrown upon 

 the travelling shaker, 

 where it is thoroughly 

 shaked, and conveyed 

 into the straw-house. 

 Thecorn passes through 

 the first winnowing ma- 

 chine, when it is cleared 

 of its chaff, short straw s, 

 &c: the latter is thrown 

 into a set of elevators 

 which carries them up 

 to the feediug-table, to 

 be threshed over again 

 with the unthreshed 

 corn. This is a very 

 useful appendage to a 

 threshing-mill ; it takes 

 all the reluse from the 

 fanners, which generally 

 accumulates about a 

 barn floor (or is carried 

 up by hand), whereas 

 the elevators carry all 

 away, and thereby leave 

 a clean barn. The corn 

 passes through another 

 pair of fanners, and from 

 thence into the corn 

 elevator trough, and is 

 carried from thence into 

 the granary and thrown 

 into the weighing ma- 

 chine, which is con- 

 nected with an index 

 in the barn on the par- 

 tition walls facing the 

 man at the feeding- 

 table, which shows the 

 quantity threshed very 

 nearly. The machine 

 occupies part of three 

 floors. The water wheel 

 is in a house beside the 

 barn, and in a room 

 above the wheel is a 

 Scotch barley-mill, and 

 beyond it is a very com- 

 plete saw-mill, both 

 driven from the same 

 wheel, which can be de- 

 tached when the thresh- 

 ing part is at work, and 

 the threshing part, when the saw or barley-mills are wanted. In the middle floor is an oat bruiser driven 

 from the upright shaft ; it can be put out of geer if wanted. 



8201. Description. In figs. 1161, 1162, 1163., a is the water-wheel, eighteen feet in diameter by four 

 feet wide ; b, a pit wheel, eight feet in diameter, which works into apinion, c, of fifteen inches in diameter, 

 fixed on the upright shaft ; d, a bevel wheel, five feet in diameter, which turns the drum pinion, c, of nine 

 inches in diameter ; /, the drum, or threshing cylinder, three feet four inches in diameter outside of the 

 beaters, and four feet and a half long, with four beaters turning upwards with a velocity of 300 revolutions 

 per minute ; a. a bevel wheel, twenty-one inches in diameter, turning a pinion of five inches and a quarter 

 diameter, on the axle of which is another pinion five inches in diameter, working in the face wheel, i, with 

 two rows of teeth, one of thirty and the other twenty-four teeth ; this pinion slides along its axle into 

 either set of teeth ; for instance, into the one of the smallest number if the straw is long, and into the other 

 if it is short, loose, and irregular. The rollers are about three inches and a half in diameter ; the wheels 

 g and j are each twenty-one inches in diameter, working into the pinions k A, five inches and a 

 quarter in diameter, which gives motion to the rake or first shaker at the rate of forty-five turns per 

 minute: it is four feet in diameter to the extremity of the teeth; 11, two wheels, each twenty-one 

 inches in diameter, with pinions, m m, five inches and a quarter each, which drive the travelling shaker 

 that receives the straw from the rake, and conveys it into the straw-house. This shaker is composed of 

 two endless pitch chains, worked by two stud wheels ten inches in diameter, with eight studs on each, on 

 the same shaft as the wheels m and », revolving at forty-five times per minute. These chains are kept 

 stretched by two smooth wheels at the further end in the straw-house : between the chains are fixed 

 round wooden rods about two inches apart, m is a wheel with large teeth on its circumference, which, 

 as it turns round, depresses the point of the lever o, and raises the end p. The lever is fixed on an axle 

 which passes through to the other side of the shaker, with a short lever fixed on it to correspond with 

 the lever p ; on these levers, pp. rests a small shaft, on which is fixed on each end, under the chains, a 

 small drum four inches in diameter, which supports the shaker in the middle, as the wheel, n, moves 

 round. The point of the lever, o. strikes from tooth to tooth, and thereby keeps the small shaft, at p />, 

 in motion up and down, which shakes the loose corn out of the straw, which is drawn back by the under 

 returning rod into the winnowing machine hopper ; q is the first winnowing machine ; r, the second 

 winnowing machine ; both driven by a small water-wheel, six feet in diameter, and four feet wide : the 

 water from the large wheels supplies this one. The motion of the machine requires to be uniform, which 

 cannot be the case if connected with the threshing part. It answers better to have a separate wheel for 



