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 238
ing piston 6, having a spherical bottom corresponding to the expansion vessel C. This vessel, S,which is the heat-intercepting vessel, is to be filled with fire-clay at the bottom, and ashes, charcoal, orother non-conducting substances towards the top, its object being to prevent any intense or… … Before describing the operation of the improved engine, it will be proper to observe that the piston-rod a only receives and transmits the differential force of the piston 6, viz., the excess of its actingforce over the reacting force of piston a. This differential force imparted to said piston-rod…
Mechanical engineering
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