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 785
movable cylinders, during the ascent of the latter by the action of the crank. Thecylinders have valves on the top, similar to those in the cast-iron chambers, which during the descendingstroke allow of the discharge of the gas into the upper part of the external cistern. From the cistern amain… … GAS. 11£ The velocity of this machine is regulated by the use of conical strap riggers to suit as nearly aspossible the amount of gas being generated, but in order to avoid the possibility of the pressure uponthe hydraulic main becoming less than that of the surrounding atmosphere, and the gas…
Mechanical engineering
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