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Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
cent shape, and is sharpened on its convex edge. Moon-rak′er; moon-sail. （Nautical.) A sail sometimes carried above the sky-scraper. Moon′stone. A variety of adularia of a white color and opalescent reflections. Mooring-bends. Moor′ing. （Nautical.) a. A sailor's bend for a cable or hawser to a bollard, post, or ring, for a ship or a flying bridge. a, square mooring. b, crossed fastening, the rope being crossed at the back. c, simple fastening. d, loop-fastening. e, Lark's-head fastening to running knot. See bend; chain-fastening; Waterman's-bend. b. A submarine holdfast in the ground. See anchor; screw-pile; mushroom-anchor. Moor′ing-swiv′el. （Nautical.) A chain over the bow, having the strength of the two cables to which it is swiveled. It enables a ship to ride from two anchors and swing without fouling. Mop and wringer. Moot. （Shipbuilding.) a. A gage-ring for determining the size of tree-nails. b. A
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
allurgy.) Pig-iron is puddled in a reverberatory furnace, and the process is stopped on the instant that the carbon has been sufficiently eliminated. Reported to have been first made by Anton Lohage, of Westphalia. In 1848, he began his trials at the Haspe Iron Works, near Hagen, in Westphalia, and after some time he succeeded in producing steel of good and uniform quality by the ordinary puddling process. His invention was patented 1850, in England, by Ewald Riepe, and introduced at Low Moor; but, owing to the quality of the pig-iron, its use was very limited in England until, in 1858, Mr. William Clay introduced the process on a large scale at the Mersey Steel and Iron Works, Liverpool. In Germany, about 100,000 tons of puddled steel are made every year, and it forms the principal material for Krupp's celebrated caststeel. Pud′dler. Mechanical puddlers have assumed two forms. 1. The Mechanical Rabble. The rabble is worked back and forth through the stopper-hole in the
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
oast of British astronomy, both of whom expressed their unbounded admiration of this and many other of his delicate and admirable improvements in the art of observation. Gascoigne, however, perished at the age of twenty-three at the battle of Marston Moor; and the premature and sudden death of Horrockes, at a yet earlier age, will account for the temporary oblivion of the invention. It was revived or reinvented in 1667 by Picard and Auzont (Lalande, Astron.), after which its use became univers Fay's gap-bed tenoning-machine. Weight or Power required to tear asunder one Square Inch. metals. Lbs. Copper, wrought34,000 Copper, rolled36,000 Copper, cast, American24,250 Copper, wire61,200 Copper, bolt36,800 Iron, cast, Low Moor, No. 214,076 Lbs. Iron, Clyde, No. 116,125 Iron, Clyde, No. 323,468 Iron, Calder, No. 113,735 Iron, Stirling, mean25,764 Iron, mean of American31,829 Iron, mean of English19,484 Lbs. Iron, Greenwood, American45,970 Iron, gun-metal,