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 575
the6liders fit steam-tight when they are shut, they are made rather larger than the diameter of the cylin-der, and are received in grooves and made round in the inside, and the valves are ground against oneof the faces of each of these grooves, so that they will fit tight without any packing. The…
Mechanical engineering
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