body of the by the cord. When the metal is cold, the mold of plas- Mo., has devised a combination (here illustrated) which tip is spread by the projection, c c, and the disk, d, in: ter is broken and the casting taken from its interior. a thin hollow sheet, and brought in a warm condition In he… … address as above. It consists, in combination with a peculiar point, of a MECHANICS, INVENTORS, MILLWRIGHTS, DRAKE'S IMPROVED LAMP. round piece of iron surrounded by a square tube of sheet AND MANUFACTURERS. LTHOUGH all classes of inventors, in- copper, which tube is fluted and twisted spirally.…