Word: pasters
(lookup in dictionary)
(lookup stats)
Dates: during 1896-1896
Sort By: most recent first
(reverse)
...characteristic difference from the ordinary Crooke's tube is that the sides or walls of the lamp are made of sheet aluminum 1/10 in. thickness; the base of the lamp is made of solid glass, practically a plug fitted into the base of the aluminum cone with paster-of-Paris, and made air tight. A metallic ring passes around the base of the cone and holds the sides of the cone firmly to the glass bottom. Through a point a little to the side of the centre of the glass base, passes the cathode pole into the lamp...