Identifier: pdiaofaencyclo00loudrich (find matches)
Title: An encyclopædia of agriculture : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and of the cultivation and economy of the animal and vegetable productions of agriculture
Year: 1871 (1870s)
Authors: Loudon, J. C. (John Claudius), 1783-1843
Subjects: Agriculture -- Dictionaries
Publisher: London : Longmans, Green
Contributing Library: University of California Libraries
Digitizing Sponsor: MSN

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pon the rollers as the machine movedforward; and it would twist upon them, by the unequal pressure to which it is exposed by the cut cornpressing unequally upon it : to prevent these derangements, there are loops fixed to the canvass, whichare made fast to the links of the chain, about six inches apart; and there being an equal number of linksin both the upper and lower chains, and an equal number of teeth in the four pulleys upon which theywork, the canvass revolves uniformly, without being in the least deranged by the many casualties towhich it is exposed, b is the pole to which the horses are yoked: it is made of wood, and is firmly fixedto the cross rails upon the top of the frame : its length is ten feet from its extremity to the frame of themachine, cc are the swingletrees by which the horses are yoked : they are yoked similarly to horses in acarriage, so as both to draw forward, or push backward, at pleasure. Their heads, of course, are towards Book IV, HEAPING MACHINES. ■i25
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»>9 The Rev. Patrick Bellinvenit; the Rev. James Crtiiclrshanfcs del 426 SCIENCE OF AGRICULTURE. Part II the machine ; and, in appearance, they push the machine before them, hut, in reality, they are drawingthe same as in the plough. it d a small rod of wood, or helm, which the driver holds in his right hand, bythe pulling Of Which to him, or pushing it from him, he conducts the machine straight forward. Thedotted lines in the plate are a continuation of the pole with the swingletrees and helm attached. Themachine is turned, at the end of the ridge, hy the following contrivance: — The two wheels re, in the hotlyof the machine, are joined to the lever / by an upright movable axle. These wheels are similar to the two(cc) on the front of the frame: they have a strong iron axle, which is made so long as to let the wheelsconveniently turn between the crank-rod (k) and the frame of the machine. In order that this piece of theapparatus may be used with advantage, the beveled wheel I is

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