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Scientific American, Vol. 93, No. 18 (1905) (1905)

leaf 11

An illustration from Scientific American, Vol. 93, No. 18 (1905), 1905, leaf 11
ing strap. The two straps are bolted together over — | aaa Gaba = suction stroke the ball is drawn away from the hole in S, and fresh air is drawn in past the porcelain at a BOAT BAILER. high rate of speed, thus exerting a cleaning action A patent has just been granted to Mr. Herbert P. upon the… … keeping the plug clean under the most adverse condi- city, have invented a device which facilitates breaking BOAT BAILER. tions, the intermittent influxes. of air serve to keep it open the shell, and then serves as a holder for the two cool, so that there is no trouble from porcelains crack- parts…

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