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 587
eals. Fig. 1543 represents the plan of a piston wliich is superior in simplicity, and at least equal in effi-ciency, to several of those we have figured. Fig. 1544 represents the piston wliich is free from all or most of the defects we have pointed out, andlias given much satisfaction in practice.… … Scalk—J iuch=l foot. Fig. 1545 is a plan and section of piston much used. It has two packiug-rings, ^ inch X 1| 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 tliree places. These then…
Mechanical engineering · Mechanics · Engineering
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