Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 602
ScALis.—1 inch=l foot. Fig. 1549 represents plan and section of piston both for marine and land. This may be regarded asB favorable, and at the same time, characteristic specimen of the most generally approved and widelyadopted variety of packing in which separate spruigs are employed. The ease…
Mechanical engineering
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