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 595
s. Fig. 1543 represents the plan of a piston which is superior in simplicity, and at least equal in effi-ciency, to several of those we have figured. Fig. 1544 represents the piston which is free from all or most of the defects we have pointed out, andhas given much satisfaction in practice. The… … Scale.—£ inch=l foot. Scale.—1 inch=l foot. Fig. 1545 is a plan and section of piston much used. It has two packing-rings, £ inch X 1J inches,each in three segments, pressed out by three elliptical springs with set screws, through the medium ofan inner ring equal in depth to the two, and cut in…
Mechanical engineering
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