ith compressed air, as may be desired. arched brace. The fingers are inserted beneath the flattened A is a spiral tube coiled about (and the ends of which are upper portion of this last, pulling it upward, and so drawing j When to Oct Up. the catches on the ends of the side pieces together, so that… … came.—Old and Neir. If the positions of the inlet and outlet valves CAMERON'S PLENUM AND VACUUM PUMP. be changed—valves, E, being inlet valves and X Good Lnuil. D, outlet—the apparatus may be used as an air compresser, of they may be easily inserted into the recesses. On relaxing The first great…
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