A short dictionary entry from Knight's American Mechanical Dictionary describing a piled-fabric loom used for weaving velvet, Brussels carpet, or plush. It explains that two joined piled fabrics are woven at once and cut apart by a revolving knife working with a guard-finger, and that pile length is changed by adjusting the spacing of the guide-bars. A side-elevation line drawing (Fig. 3716) shows the knife and guide-bar mechanism, heddles, cam and gear drive, and cloth take-up.