Appleton's dictionary of machines, mechanics, engine-work, and engineering . ced by this valve, the oil cis-tern being inverted, and this should be refilled each time the lamp is used, care being taken that no airremains in the vessel, as this would be expanded very much by the heat, and cause the oil to overflowThe flame is regulated by raising or lowering the bell-mouthed glass chimney, which rests upon threepoints below and is moved by rack and pinion. The wick is not movable, as is the case in ordinarylamps, and a fresh wick,, which is accurately cut by machinery expressly for this lamp, m
Appleton's dictionary of machines, mechanics, engine-work, and engineering . ced by this valve, the oil cis-tern being inverted, and this should be refilled each time the lamp is used, care being taken that no airremains in the vessel, as this would be expanded very much by the heat, and cause the oil to overflowThe flame is regulated by raising or lowering the bell-mouthed glass chimney, which rests upon threepoints below and is moved by rack and pinion. The wick is not movable, as is the case in ordinarylamps, and a fresh wick,, which is accurately cut by machinery expressly for this lamp, must be insert-ed every time the lamp is used. A paper or glass shade surrounds the whole of the upper part of thelamp, according as the light is required to be thrown downwards or uniformly diffused through theapartment. Dr. Ure has reported the illuminating power of this lamp to be superior to that of Oarcelamechanical lamp, and when consuming southern whale oil, it would appear from his statements todeserve the appellation of the Economic to the full extent of the
Size: 890px × 2808px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
