doubler1 (dubler)

[ The earliest of such continuous electrophori was Bennet's Doubler , the latest is Holtz's machine. S. P. Thompson , Elect. and Mag., p. 26. 2. A still arranged for intercepting vapors of distillation, and redistilling them,-3. A machine for doubling and drawing silk.-4. The felting placed between a fabric to be printed and the printing-cylinder.-5. Same as double- ripper.-Norremberg doubler, a form of polar i scope.