. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. NAVIGATION, VESSELS, MARINE APPLIANCES, ETC. 205. 5:^3. LIGHTING BUOY. Compressed gasis charged into the body of the buoy at from 100to 200 pounds per square inch. A regulator de-Kvers the gas to the burner at a uniform single charge will burn for several d
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. NAVIGATION, VESSELS, MARINE APPLIANCES, ETC. 205. 5:^3. LIGHTING BUOY. Compressed gasis charged into the body of the buoy at from 100to 200 pounds per square inch. A regulator de-Kvers the gas to the burner at a uniform single charge will burn for several days. The inverted cone under the lamp protects itfrom the splash of the waves. Good for har-bors and channels. 524. FOG WHISTLE. A signal of warning operated by w^avemotion. A sounder on the principle of the steam whistle is exposed to a blast of air, according to the facihtiesof operation. Usually, motion derivedfrom the waves, the tide, the wind, orclockwork, makes it automatic. Inthe example, the semicircular tubularvessel is mounted upon a rock shaft,and has at each extremity an ordinarywhistle and a valve opening the vessel is partially filled withw^ater and rocked to and fro, the air isforced through the whistle and soundsan alarm.
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
