A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine . No. 30. Single Gutter. It IS smiply a trough or gutter, the open end of which rests on thebank, over which the is to be elevated; the other end beingclosed is plunged into the liquid, and then raised till its contents are dis-charced. It ibrms what is called a lever of the second order, the loadbeing between the fulcrum and the No. 81. Double
A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine . No. 30. Single Gutter. It IS smiply a trough or gutter, the open end of which rests on thebank, over which the is to be elevated; the other end beingclosed is plunged into the liquid, and then raised till its contents are dis-charced. It ibrms what is called a lever of the second order, the loadbeing between the fulcrum and the No. 81. Double Gutter. This ficrure represents an imprc^vement, being a double gutter, or twoof the former united and placed across a tn^ugh or reservoir designed toreceive the water. A partition is formed in tne centre, and two openingsmade through the bottom on each of its aides, through which the waterthat is raised escapes. The machine is worked by one or more men,who alternately plun:;e the ends into the water, and consequently pro 12.] The Jantu. SO (luce a continuous discharge. Soniutiines, openings are marie in the Imt^toin next the laboreis, and covered by Haps, to admit the watei with<mtthe necessity of wholly immersing those ends. Maeiiines of this kind aredescriixxl by Belidor, but he has not indicated their origin. Fr.)m tlieirsimplicity, they probably date from remote antiquity. They are obviously,modifications of the Jantu of Ilindostan and other parts of Asia, andwere perhaps carried to Europe, (if not known there before) among otheroriental devices, feoon af
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Keywords: ., bookcentury1800, bookdecade1870, bookiddescriptiveh, bookyear1876
