A history of the growth of the steam-engine . mm-. Tio. 21.—Smeatons Newcomen Engine. to secure prompt condensation. A waste-pipe carries awayany surplus water. The injection-water is led from the cis-tern by the pipe, P P, which is two or three inches in diam- 66 THE STEAM-ENGINE AS A TRAIN OF MECHANISM. eter, and the flow of water is regulated by the injection-cock, r. The cap at the end, d, is pierced with several holes,and the stream thus divided rises in jets when admitted,and, striking the lower side of the piston, the spray thusproduced very rapidly condenses the steam, and produces ava
A history of the growth of the steam-engine . mm-. Tio. 21.—Smeatons Newcomen Engine. to secure prompt condensation. A waste-pipe carries awayany surplus water. The injection-water is led from the cis-tern by the pipe, P P, which is two or three inches in diam- 66 THE STEAM-ENGINE AS A TRAIN OF MECHANISM. eter, and the flow of water is regulated by the injection-cock, r. The cap at the end, d, is pierced with several holes,and the stream thus divided rises in jets when admitted,and, striking the lower side of the piston, the spray thusproduced very rapidly condenses the steam, and produces avacuum beneath the piston. The valve, e, on the upper endof the injection-pipe, is a check-valve, to prevent leakageinto the engine when the latter is not in operation. Thelittlepipe, f, supplies water to the upper side of the piston,and, keeping it flooded, prevents the entrance of air whenthe packing is not perfectly tight. The working-plug, or plug-rod, Q, is a piece of tim-ber slit vertically, and caiTying pins which engage thehandles of the
Size: 1495px × 1671px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookidc, booksubjectsteamengines
