Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 639
mences. The cock offers a straight and uninterrupted passage for liquids or gas, the working parts hav-ing no connection with the interior. From the certainty of its action, and the impossibility of its-sticking up or down, it is well worthy attention. As these cocks can be made in iron, a great…
Mechanical engineering
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