VOL. XIII. NO. 25. THE follower, E, to be in an elevated state, the … et Be Pump Valve. this shaft has its bearings in a lever, h, by tions, g, which always extend over the edges This press can be operated by any conve- A new and valuable modification of pump which it may be raised or lowered, and, by nient power, and is intended to compress the or ends of the…
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