thread finisher

A machine in which thread is treated to give it a smooth and polished surface. thread-frame, s . The doubling and twisting mill by which two or more yarns are combined to form a thread. The yarns as they are unwound from the bobbins or cops are pa ed beneath the surface of a solution of gum or starch in a trough; the wetting enables them to be condensed into a more solid thread; they then pa between rollers, lers, by which they are laid parallel, or nearly so, and are thence conducted to a flyer, by which they are twisted together, and to the bobbin, on which they are wound.