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Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
eans of flooding its upper surface with water. Watt obtained a patent for packing pistons with lubre of camel's hair, and are flat in shape. James Watt recommended rats' whiskers as the best materre. Parallel knife White's parallel lathe Watt's parallel motion Par′al-lel knife. Two ight line of movement. Fig. 3548 illustrates Watt's parallel motion. The equal rods a b, conneces for causing parallel motion. A was used in Watt's original single-acting beam-engines; the pists under the operation of the parallel motion of Watt, but in a mathematically straight line. By v valve-stem with the end of the cylinder. James Watt found the piston imperfectly fitted in a rouel of the sun and planet motion, invented by James Watt. So called from its rotation around anotherated in the usual way. This is the principle of Watt's indicator. Lowe's steam-gage consists of ae of water ejected by a steam-pump. In 1780, Watt suggested the spiral oar to move canal-boats. [1 more...]
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
t one end to a beam and at the other to one of the hanging links, serve in the parallel motion of Watt to guide the piston-rod in a vertical direction by counteracting the vibratory motion communicate index-finger, and the angular distance between them on a graduated dial will form a register. Watt first applied a register to the steam-engine to count the strokes. The term register is also alator. Worm-wheel adjustment for regulator. Reg′u-lator–box. A valve-motion contrived by Watt for his double-action, condensing pumpingengines (A). A spindle passes through one side of the bope. Road-loco-mo′tive. A locomotive adapted to run on common roads. The idea, conceived by Watt and Dr. Robinson, was first realized by Murdoch, a Cornish engineer, who, about 1786, constructed or made by the inventors of the last century and the early portion of the present. The names of Watt, Cartwright, Galloway, and others may be mentioned. Rotary spading-machine. The illustrati<
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
shSeparate condenser1769 WattEnglishCrank1769 WattEnglishAir-pump for engine1769 WattEnglishDouble-acting engine1769 Watt Watt also introduced, at various periods, the rotary-ball governor, whilt-hammer1783 EvansAmericanSteam-carriage1783 WattEnglishParallel motion1784 MurdochEnglishSteam-viga-tion. In 1784, Murdoch, an assistant of Watt, invented a steamcarriage, which he tested on as called by him a water-commanding engine ; and Watt's engine was denominated by him a fire-engine. qual to half the pressure of the atmosphere. Watt made experiments on the power of steam by meanshe steam on a kind of wheel. A rotary engine. Watt repeated this 70 years afterward, and included llated on a horizontal axis and described arcs, Watt contrived the parallel motion (which see). Wvent the cooling of the object so enveloped. Watt, in 1769, after contriving the separate condens into the fireplace. Base-burning furnace. （Watt, 1785.) Liddel in 1852 (o, Fig. 5920) shows[69 more...]
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
l, the flow is into an auxiliary tube, which curves upward and then enters the delivery-pipe. Three-cylinder engine. The four-way cock is an invention of James Watt. See Fig. 2091, page 912. Haskell's three-cylinder pump. Three-way valve. One which governs three openings, as a three-way cock (which see). Three-inists, whose labors have, within the present century, built up the mechanical greatness of England. Accuracy of machine-work before his day was utterly unknown. Watt had the greatest difficulty in getting his first model of the steam-engine constructed with sufficient truth to work; its cylinder was not bored, but hammered, andumping-engine made a tremendous noise, and much astonished the spectators, who regarded it as one of the most remarkable and interesting parts of the performance. Watt knew better, and would have loved a noiseless machine, but was so beset by open condemnation, faint praise, and legal botheration, that he kept his own counsel, an
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
hung arm for supplying a tender with water. Also known as a water-crane, from its form. It has a revolving swan neck, and the valve is operated by a hand-wheel, rods, and miter gear. Also called a water-crane (which see). Wa′ter-pipes. James Watt devised sectional water-pipes with flexible articulations to enable the pipe to accommodate itself to the inequalities of a river bottom across which the water was to be conveyed. He derived the suggestion from the articulations of the tail of G connected by rods H H are automatically adjusted to admit more or less air to the interior wheel E by means of a ball-governor driven by connection with the wheel and operating a lever L. The ball-governor was first used in windmills, and James Watt borrowed the idea from thence. In Holland, windmills are employed in driving the scoopwheels which drain the polders. The mill resembles exteriorly an ordinary windmill, but the upright shaft is carried down to the bottom floor, where a bev
Wendell Phillips, Theodore C. Pease, Speeches, Lectures and Letters of Wendell Phillips: Volume 1, chapter 16 (search)
Observe, I do not depreciate statesmanship. It requires great ability to found states and governments, but only common talent to carry them on. It took Fulton and Watt to create the steam-engine; but a very ordinary man can engineer a train from Boston to Albany. Some critics sneer at old histories for recording only what goveudices of courts and the machinery of cabinets had large sway. But how absurd to say even of Pitt and Fox that they shaped the fate of England. The inventions of Watt and Arkwright set free millions of men for the ranks of Wellington; the wealth they created clothed and fed those hosts; the trade they established necessitated thttle. Napoleon was struck down by no eloquence of the House of Commons, by no sword of Wellington. He was crushed and ground to powder in the steam-engines of James Watt. Cobden and O'Connell, out of the House of Commons, were giants; in it, dwarfs. Sir Robert Peel, the cotton-spinner, was as much a power as Sir Robert Peel,
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