s has been already explained that to produce one revolution of thewheels each piston is moved once backwards and forwards in eachcylinder, and each cylinder must be twice filled with steam from k2 131 THE LOCOMOTIVE. the boiler, and that steam must be twice discharged from eachcylinder through the… … v^-*»S.^VH— eight hundred measures of steam of the requisite pressure perminute. The valves which admit this steam to each cylinder mustbe opened four hundred times per minute, as must also both valves132 NECESSARY EVAPORATION. by which, the steam is ejected. The puffs from the blast-pipe mustbe…
Steam-engines · Steam-navigation · Locomotives
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