Identifier: appletonscyclopa02dapp (find matches)
Title: Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts
Year: 1880 (1880s)
Authors: D. Appleton and Company Benjamin, Park, 1849-1922
Subjects: Mechanical engineering -- Dictionaries
Publisher: New York, D. Appleton
Contributing Library: Mugar Memorial Library, Boston University
Digitizing Sponsor: Boston University

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tank A A, through strainer-pipe/1. The lampis filled at C; r is the stopple. The shield / serves to deflect the air from the blower e, and to carryback oil, also to prevent oil from gathering in the motor. The wick used in this lamp is the oldsolar, cylindrical wick, the exposure being three-sixteenths of an inch. The tube being compressedinto an ellipse, the wick conforms to it, Fig. 2551, producing a batswing flame. The air is made toimpinge from the inside by this form, and from the outside by the narrow slot in the burner at C,producing a silvery-white combustion, free from discolored spots or orange tints in the flame. Thewick-raising device is common to all lamps burning heavy oils, having a long screw-nut and but-ton EE. Fig. 2549 is the winding-plate, with its clicks o, o, click-springs o-, o2, and ratchet-wheel o, and isattached to the bottom of the movement, Fig. 2547. Fig. 2552 shows the lamp-top detached at K, the upper half containing burner and tube D, wick- 2552. 2553.
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tube, and bent oil-tube as far as h-, where it uncouples, in a socket, for the purpose of cleaning outmatches, crust, etc., that accumulate with carelessness. It is stated that by photometrical test this lamp has given a light equivalent to that of 17 candles. Kerosene Lamps.— The Student Lamp.—The St. Germain or student lamp was invented by C. A.Kleemann in 1863, and has been much improved since by C. F. A. Hinrichs of New York. It is acommon defect of most lamps that the oil-vessel is placed immediately under and close to the burner,a position which throws the most objectionable shadow. Many contrivances have resulted fromefforts directed toward transposing this cistern above the level of the flame, when its shadow wouldfall upon the ceiling of the room, or to a position much below the flame, when the shadow wouldfall at the foot of the lamp. Both arrangements, however, give rise to new difficulties, the formerrequiring regulation of the supply and the latter the use of a pumpin

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