A brief account of the Shaws water scheme, and present state of the works

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Page 77 - And I consent to the registration hereof in the books of council and session, or any other judges books competent; therein to remain for preservation; and thereto I constitute my procurators, &c.
Page 21 - THIS apparatus, •when placed on a reservoir that supplies any canal, mill, or other work with water, (where the aqueduct between the reservoir and such work is on a level,) will always open of its own accord, and let down the quantity of water wanted by such work and no more ; so that it not only supersedes a water man, but also saves a great deal of water.
Page 76 - Water passing the same, for the purpose foresaid, and that at two terms of the year, Whitsunday and Martinmas, by equal portions...
Page 77 - Horning, on six days' charge, and all other legal execution, may pass upon a Decree to be interponed hereto, in form as effeirs...
Page 23 - This sluice, when placed upon any river, canal, reservoir, or collection of water, prevents the water within the embankment from rising above the height we choose to assign to it; for whenever it rises to that height, the sluice opens and passes the extra water; and whenever that extra water is passed, it shuts again; so that whilst it saves the banks at all times from damage by overflow, it never wastes any water we wish to retain.
Page 27 - FIGURE 4. This apparatus answers the same purpose as the lever sluice, fig. 1 ; but is more applicable in cases where the reservoir is deep, and the embankment consequently large. It also acts as a waster-sluice, by opening and passing the extra water whenever it rises in the reservoir the least above the height assigned, and thereby supersedes a bye-lead.
Page 25 - ... which it turns at its under edge, but they may be placed either at the upper or under edge, as circumstances render advisable. The upper edge is also here represented on a level with high-water-mark, but, if necessary, it may be placed any where between that and the bottom of the pond or aqueduct, or right below, as on an aqueduct bridge, or similar situation. The cylinders may also be placed on the outside of the dam or embankment, by having a pipe to communicate between them and the water within...
Page 29 - ... cast iron attached to the extremity of that lever at D, and into which small stones are put until it becomes heavy enough to shut the sluice against the pressure of the water in front. F, a pulley. G, a hollow cylinder of copper (or tin-plate painted,) with a small aperture in its bottom. DFG, a chain, one end of which is fixed to the lever at D, then, passing over the pulley F, has its other end fixed to the cylinder G.
Page 24 - L ; and then the weight of cylinder GH shuts the sluice as before. The dimensions and weight of this cylinder must, of course, correspond with the weight of the column of water pressing upon sluice B D. An apparatus of this kind was first erected at Rothsayin 1817.
Page 9 - This pipe, which is fully fifteen inches square, is perfectly water tight. ; being formed with stone, nicely joined and cemented ; and costs something less than one-third the price of a cast iron pipe of equal capacity. Wherever the pressure is not great, such a conduit is preferable to an iron pipe ; as the water by passing over stone is rather improved than injured, which is not the case •with iron. In this...

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