[NUMBER 436 VOLUME X.] THE The accompanying engravings are views Scientific American, of an improvement in Hydraulic Water … and to avoid any irregularity in the beating Fig. 2.4 constructed, arranged, and operating in con- of the valves inthe air chamber or waste nection with pins or rods and a key of pecu- pipe. liar construction, as will be hereafter de- side, m, ot the frame, C, and the side, m, bears against the…
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