Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 485
the top of the cylinder, so that the steam may blow out into \\^ air wiicn the piston rises above theirIt may here be remarked that the efficacy of the blows of the hammer, and the security fromdamage to the parts of the machinery, are in this case, as in that of (lie steam forge-hammer,…
Mechanical engineering
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