THE

Commercial and À'gricultural Magazine.

e tatiana

No. XII.) PUT Y; 1800;[Vor IE

4

- HISTORY AND DESCRIPTION OF THE THRESHÍNG MACHINE.

E have been induced to poſtpone(to the utmoſt limits

of the patience of our readers). the promiſed Plate of the Threſhing Machine. The delay has ariſen from a repughance to preſent deluſive information to the public; and we bave n°0 ſooner felt a convi@ion of the perfe execution of one of the Machines in T'breſhing, than we haſted to procuré a Drawing of it, for the Frontiſpiece of the twelfth number of our Magazine.

The Threſhing Machine was chiefly the invention of Mr.- Andrew Meikle, a deſcendant of the man, who, at che riſk of his life, firſt introduced, from Holland, thé art of making pearl-barley into. Scotland. A patent was procured for the Threfhing Ma- chine; but ſet afide by the failure of a ſuit, commenced by the Patentee again Mr. Reftrick, an inhabitant of Northumberland. We believe the jury determined that the Threſhinz Machine was not entirely the invention of Mr. Meikle. Hence it is luckily thrown open to the public, and the probability of farther improvements much increaſed by the more numerous makers», who will bend their efforts to this point. The incentive of profit will keep them all on the alert.

The plate exhibits, at fig. I. a PerſpeGive View of the Machine; at fig. 2. a Plan, or rather a bird’s-eye View of it.— For more luminous explanation the reſpective letters 0D the plate refer to the /ame parts, both on the view and lan. A two-

entation, as likely

horſe Threſhing Machine was choſen for reprefi to become moît generally uſeful.(A) feet diameter; the top of its cir iron cogs. Theſe’ cogs turn a pini whoſe axis is continued through the ſpur wheel has 96 cogs; the pinion-wheel(D) on cogs. The axis of this pinion-wheel, cont drum(E) turns it with great rapidity, On (in the perſpe&ive view) three of the lix with aſtoniſhing force on the corn. The aj the corn to the blow of theſe beaters the end af the axis of the’ ſpur-wheel cylinder, or roller, ſeen at(ERA It longitudinally(lengthwiſe), and at 1

(fig: 2.) has a ſmall-toothed-wheel, which, conneing

cox,& AG. MAG. 5B

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