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 596
1550. … Scale.—1 inch=l foot. Scale.—J inch=l foot. Fig. 1550 represents a form of marine piston. To enter into a detailed analysis of it would be super-fluous, after having considered so much at length the general principles by which our judgment hasbeen regulated. Fig. 1551 is another form of piston. The…
Mechanical engineering
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