Inside Out Library · Explore
Scientific American, Vol. 42, No. 3 (1880) (1880)
leaf 3
of a scale, f. The longer used by Mr. Edison in removing the air from his lamp bulb; resting on the bracket, and having an overflow connected by and larger tube of the gauge is connected by a flexible tube one for exhausting the greater volume of air, the other for a flexible tube with a mercury… … A.—Geissler’s Pump. Be page Pump. C.—McLeod’s Gauge. Gold Leaf. G.—Electric Lamp Bulbs. a@,—Mercury Supply E.—-Bulb containing Phosphorous Anhydride. ‘ube. h.--Mercury Sealed Jo‘nts, d.—Discharge Tube. f.—Scale. /”.—Gauge Tube. nm © 1880 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 42, No. 3 (1880)
More like this
