THE STEAM ENGINE. Fig. 14 … the diameter of the piston rod. Above this hole is a cup, inwhich, around the piston, is placed a stuffing of hemp or tow,which is saturated with oil or melted tallow. This collar of hemp is pressed down by anotherpiece, also perforated with a holethrough which the piston rodplays, and which is…
Steam-engines · Steam-navigation · Locomotives
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