The scientific papers of James Prescott Joule (1884)
Joule, James Prescott, 1818-1889, Scoresby, William, 1789-1857, Playfair, Lyon Playfair, Baron, 1818-1898, Kelvin, William Thomson, Baron, 1824-1907 · London, Taylor and Francis · leaf 251
spiral metallic packing (of antifriction metal), worksby the direct action of the beam of a steam-engine through astroke of 22 inches. The pump is single-acting, the airentering at the base of the cylinder during the up-stroke,and being expelled thence into the receiving tubes by thedown-stroke.… … Fig. 11. The valves, fig. 12, consist of loose spheres of brass 06 of aninch in diameter, which fall by their own gravity over orifices045 of an inch diameter. The cylinder and valves inconnection with it are immersed in water to prevent thewear and tear which might arise froma variable or too…
Physical Society of London · Physics · Chemistry
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