Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 593
it is not necessary to make the back of the casing removable, but merely to plane and fit the back t4»the rings before the parts are put together. The back plate which forms the cover of 1jbe casing isscraped as carefully as the valve and cylinder faces, but only as much of the back plate is thus…
Mechanical engineering · Mechanics · Engineering
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