Godey's lady's book 1861 Jan -June; Jul - Dec (1861)
Hale, Sarah Josepha, 1788 - 1879, Godey, Louis Antoine, 1804 - 1878 (eds.) · Philadelphia: Louis A. Godey · leaf 235
eam-power to driving ma-obinery. Watt, therefore, proposed to use theforce of steam both in the up and down stroke,and in turn condensed the steam from each end ofthe cylinder. For this purpose he fitted a coverto the cylinder through which the piston moved,air and steam tight. The mechanism by… … cover (A), through which the piston-rod works,steam tight; the openings for the steam areat the side, and are marked o; these are con-nected witli a cylinder or tube (b) closed in thesame manner as the large cylinder; in thisanother tube (r/) works up and down, steamtight at the parts d d, but…
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