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Zusammenfassung
Title: An encyclopædia of agriculture (electronic resource) : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and the cultivation and economy of the animal and vegetable productions of agriculture, including all the latest improvements, a general history of agriculture in all countries, and a statistical view of its present state, with suggestions for its future progress in the British Isles
Identifier: encyclopdiaofa01loud (find matches)
Year: 1831 (1830s)
Authors: Loudon, J. C. (John Claudius), 1783-1843
Subjects: Agriculture
Publisher: London : Printed for Longman, Rees, Orme, Brown, and Green
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive
Text Appearing Before Image:
1374 ENCYCLOPEDIA OF AGRICULTURE. n»sT additional
Text Appearing After Image:
will run ; in this case, at about 3 feet higher than the surface of the lands to be drained, and about 6 feet higher than the bottom of the drains. At the lower end of the trough there is a sluice, g, for regulating the quantity of water introduced into the lifting wheel; because, if this were too great, the power of the steam-engine might be insufficient to turn the wheel, or the machinery might be injured. The wheel, as it will be seen, consists of eight iron paddles, fixed to an octagon iron casing ; each paddle acts by lifting up a portion of water from the bottom of the wheel-race, and raising it to the top of the sluice e. When the whole of the water, or nearly so, is lifted up, of course the boards composing the sluice e must be attended to, lest the water force its way back again upon the wheel. Fig. 1268. is a ground plan of the boiler, engine, and water-wheel; in which a is the boiler; b, the engine; c, the water-wheel shaft ; rf, the paddles of the water-wheel; e, the upper sluice, over which the water is thrown ; /, the pond or reservoir which receives the water; and g, the lower sluice, placed across the drain which conveys the water to the wheel-race fig. 1269. is a section through the steam-engine and the water-wheel; in which a is the boiler; 6, the engine ; c, the shaft or axle of the water-wheel; d, the paddles; o, the tube for supplying water to the boiler; p, the steam pipe; q, the fly-wheel; r, the spur-wheels j and s s, the roof.