"Newcomen's Atmospheric Steam-Engine. A, A, working-beam; B, boiler from which steam is admitted through the steam-cock; c, to the cylinder C; F, rod, serving to lift a small pump; i, injection-cock; P, piston; S, blow-valve, or snifting-valve; T, tank; W, weights."-Whitney, 1902.

Steam Engine

"Newcomen's Atmospheric Steam-Engine. A, A, working-beam; B, boiler from which steam is admitted through…