y inclined screw-tapped hole, through which passes vention of Franklin Ransom ,who has been several years en- gravelly nature, incumbered by the stumps of Scotch fir trees a screw C, the head of which is perforated at D to receive gaged in perfecting it. It is intended to perform the service cut… … THE RANSOM SIPHON tion alone without the steam. CONDENSER. acting on another stump. When fairly at With a vacuum of 13 pounds per square work, the drawing of the stumps is performed plate, F. The metal plate traversed by the screw also carries at the rate of one per minute. inch and the condenser…
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