The steam engine familiarly explained and illustrated; with an historical sketch of its invention and progressive improvement; (1836)
Lardner, Dionysius, 1793-1859, Renwick, James, 1790-1863. [from old catalog] · Philadelphia, E. L. Carey & A. Hart · leaf 200
these means the propellingpower was always in action. The cranks were maintainedin this position by an endless chain, which passed round twocogged wheels placed under the engine, and which werefixed on the same axles on which the wheels were placed.The wheels in this case were fixed on the axles,… … cogged wheels fixed on the axle of the wheels of the engine,and surrounded by the endless chain. These wheels beingequal in magnitude, perform their revolutions in the sametime; so that, when the crank, f, descends to the lowestpoint, the crank, g, rises from the lowest point to the hori-zontal…
Steam-engines
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