Appleton's dictionary of machines, mechanics, engine-work, and engineering . e most important kind of burner employed for illuminating Argand burner, with double draught, consists of two metallic cylinders, one within the other, eand d: the ring-shaped space between them, which is closed at bottom, contains the oil and thocyhudrically woven wick ; the latter is clamped between two rings, which are connected with the screw. LAMPS. 167 The inner cylinder is open at top and bottom. The extraordinary advantages of this arrangement arceasily understood. It has been already shown that w
Appleton's dictionary of machines, mechanics, engine-work, and engineering . e most important kind of burner employed for illuminating Argand burner, with double draught, consists of two metallic cylinders, one within the other, eand d: the ring-shaped space between them, which is closed at bottom, contains the oil and thocyhudrically woven wick ; the latter is clamped between two rings, which are connected with the screw. LAMPS. 167 The inner cylinder is open at top and bottom. The extraordinary advantages of this arrangement arceasily understood. It has been already shown that with entire (massive) wicks, a nucleus is formed inthe middle of the candle, which illumines but little, and smokes from want of air; with the hollow wicka current of air is directed exactly to that spot, so that the flame is surrounded by two concentric cur-rents of the same kind. The current produced in the air by a freely burning hollow-wick flame, or thenatural supply of air, is by no means sufficient to produce the requisite amount of light. As soon as, by 2476. h ..^. 2477. k h ..j i /J^pllllllvJislHBSl!^
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
