. 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. 386. KEROSENE SOLDERINGFURNACE. Air is compressed in theoil tank by the rubber bulb by which theoil under pressure is forced through aneedle valve to a vaporizing retort and bya Bunsen-burner jet is mixed with airand forced into the burner tube, whichis perforated wit
. 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. 386. KEROSENE SOLDERINGFURNACE. Air is compressed in theoil tank by the rubber bulb by which theoil under pressure is forced through aneedle valve to a vaporizing retort and bya Bunsen-burner jet is mixed with airand forced into the burner tube, whichis perforated with small holes that feedthe heating flame. 387, KEROSENE OIL BURNER for stoves. The coil of ironpipe in the box is the vaporizer, terminating in the cross pipe and two jet burners. The cones deflect theheat upward, allowing sufficient heatto the coils for vaporizing the starting the burner, asbestos matswet with oil are placed under the vap-orizing coils and GAS AND AIR-GAS DEVICES, ETC. i6i 388. KEROSENE COOK STOVE. National Oil Heating Air is compressed in the oil tank above the oil, which drives the oil to a vaporizer in the burner pan,where the oil is vaporized and forcedthrough a combination air jet to thechamber of the burner box, which isfilled with small tubes which supplyadditional air for complete combus-tion. See Figs. 386 and 387 forsimilar burners. 389. KEROSENE HEAT-ER. National Oil Heating Airis compressed in the oiltank above the oil, which drivesthe oil to a vaporizer in the burnerpan, where the oil is vaporizedand forces a combination air jetto the chamber of the burnerbox, which is filled with smalltubes which supply additionalair for complete Figs. 382, 383 and 384 forsimilar burners. 390. GAS GRAVITY BALANCE. A glass globe is nicely bal-anced on a hollow beam w^ith a pointer at the opposite end and a scale.
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