The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 140
H, the eccentric, to which is attached the valve-rod leadmgtothe steam-box; M, the lever of the safety-valve; Q, theeduction-pipe leading from the cylinder and entering the opencistern, P, where it is partly condensed, and forced agam intothe boiler by meaiis oi the force-pump, J.12 134… … far more rearlilj by witnessing its operation, than from anywritten description. i?ewarA:. —Water freed from air will not boil at L12- ; if the access of airto such be prevented, and the temperature be raised to 270^ and above, tlicwhole mass of liquid may become highly explosive, exploding with…
Physics
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