Light, photometry and illumination : a thoroughly revedof ''Electrical illuminating engineering'' . Sectional Plau &rt- Saturator Box T ^ 3 Centering\ Screws spaced ^^ I 1 Tin Cap to ProteA^ ^^. I 1 Burner from J;uat Heated Air Supply for Inner Flam*. Pentane 10 C. P. LampHarcourt Type 8 Legs spaced eveulj Fig. 22.—Sectional view of pentane lamp. is divided by vertical vanes into a maze through which air passesand becomes mixed with the pentane which vaporizes veryreadily. This mixture passes through the supply pipe to theburner. In hot weather the pentane may evaporate so rapidlythat air will
Light, photometry and illumination : a thoroughly revedof ''Electrical illuminating engineering'' . Sectional Plau &rt- Saturator Box T ^ 3 Centering\ Screws spaced ^^ I 1 Tin Cap to ProteA^ ^^. I 1 Burner from J;uat Heated Air Supply for Inner Flam*. Pentane 10 C. P. LampHarcourt Type 8 Legs spaced eveulj Fig. 22.—Sectional view of pentane lamp. is divided by vertical vanes into a maze through which air passesand becomes mixed with the pentane which vaporizes veryreadily. This mixture passes through the supply pipe to theburner. In hot weather the pentane may evaporate so rapidlythat air will not enter the inlet to the saturator and only pentanevapor will be fed into the flame. Air, heated by passing through»Trans. Ilium. Eng. Soc, Vol. 3, p. 133, 1908. STANDARDS OF LUMINOUS INTENSITY 59 the annular space between the inner and outer chimneys, passeson down through the hollow standard and into the centralchamber below the burner. This air so heated rises feeding theinterior of the flame resulting from the combustion of the vaporof pentane as it issues from the ring of 30 holes in the steatiteburner. The height of the flame is determined by the distance betweenthe burner and the chimney, and by the rate of supply of thecombustibl
Size: 1643px × 1521px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectlight, bookyear1912
