Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 238
nvention ofmachines for utilizing heat for this purpose. Of thesemachines, the steam engine, which is a device for trans-forming the energy stored in steam into mechanicalmotion, is the most important. In its simplest form, it consists of a piston made tomove backwards and forwards in a cylinder by… … ated is lead by a pipe F into a steam-chest A, from whichit is admitted to the cylinder at the ends by ports B and 230 PHYSICAL SCIENCE. C. These ports are connected alternately with thesteam-chest and an exhaust-pipe P leading to the outsideair by a slide-valve D made to move backwards andforwards…
Physics
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