. 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. s S76 and 377.) is the most recent as well as the most perfect inven-tion of this description. The frame-work of this machine (a a) may be made lighter or stronger accord-ing to circumstances; b d and c c are four wheels upon which it is mounted, of whatever form it ismade; B B have their spokes at right angles to their naves, and are 3£ feet diamet
. 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. s S76 and 377.) is the most recent as well as the most perfect inven-tion of this description. The frame-work of this machine (a a) may be made lighter or stronger accord-ing to circumstances; b d and c c are four wheels upon which it is mounted, of whatever form it ismade; B B have their spokes at right angles to their naves, and are 3£ feet diameter. For neatnesssake the naves are made of cast-iron ; the wheels are from five to six inches broad at the rims, andare surrounded with a slight hoop of iron. Were they made narrower in the rims, when the groundwas soft they would both cut it, and drag, without giving motion to the connected parts of the ma-chinery. The small wheels (cr;, which support the front of the frame, are (like the large ones b b)made of wood : they arc fourteen inches in diameter, and six inches broad at the rims, with a very slighthoop of iron round them. Their axles, which are of iron, are screwed to the frame, and are about 1J Rook IV REAPING MACHINES. to. The Rev. Patrick llel! invcnit; the liev. M. Cruirkshnnlrs del F. o A ?IM SCIENCE OF AGRICULTURE. Part IE inches m diameter. The wheels are placed as near the front of the frame as possible, the reason forwhich will appeu wlun the general description of tin- machine is given. The wheels uu are connectedwith the main axle D , in JUCb a manner at that tiny may turn upon it, similarly to a carriage-wheel,without moving the axle with them; or they can he fixed to it at pleasure, so as to turn it round withthem as occasion require*. For this purpose, the holes in the naves are circular ; and of course so muchof the axle as pafltintl through them is round. There are cross flenses, cast upon the nave, which catchhold t the Coupling l>\ I When
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1871
