"Piston" Quotes from Famous Books
 ... engine. In the "Century of Scantlings and Inventions", published in London in 1663, he describes devices showing that he had in mind the raising of water not only by forcing it from two receivers by direct steam pressure but also for some sort of reciprocating piston actuating one end of a lever, the other operating a pump. His descriptions are rather obscure and no drawings are extant so that it is difficult to say whether there were any distinctly novel features ...
— Steam, Its Generation and Use • Babcock & Wilcox Co.
... as to gunpowder presses applies still more to those for gun-cotton, although the latter are always hydraulic presses. Generally the pistons fit the mould perfectly, that is to say, they make aspiration like the piston of a pump. But there is no metal as yet known which for any length of time will stand the constant friction of compression, and after some time the mould will be wider in that part where the greatest compression takes ...
— Nitro-Explosives: A Practical Treatise • P. Gerald Sanford
... the bottom of an upright cylinder, which is immediately shut perfectly close. A flint and steel are at the same time made to strike directly over it, and to ignite the powder. The air that is thus generated, forces up a piston through a cylinder, which piston, striking the arm of a wheel, puts it in motion, and with it the machinery of the mills. A complete revolution of the wheel again prepares the cylinder for a fresh ...
— A Voyage to the Moon • George Tucker
... project, and described the difficulty he had experienced in getting his paddle-wheels turned round. On which Symington immediately asked, "Why don't you use the steam-engine?" The model which Symington exhibited, produced rotary motion by the employment of ratchet-wheels. The rectilinear motion of the piston-rod was thus converted into rotary motion. Mr. Miller was pleased with the action of the ratchet-wheel contrivance, and gave Symington an order to make a pair of engines of that construction. They were to be used on a small pleasure-boat on ...
— James Nasmyth's Autobiography • James Nasmyth
... valve is fastened to the shaft to give the proper amount of lead, and the desired release and compression, and the expansion valve is operated by a separate eccentric fastened in line with or 180 deg. ahead of the crank. When the piston, therefore, commences to move from the crank end to open the port, D, the expansion valve is forced by its eccentric in the opposite direction, and is closing the steam port and would have closed it ...
— Scientific American Supplement, No. 787, January 31, 1891 • Various
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