·add. ·noun A worker who replaces full bobbins by empty ones on the throstle or ring frames.
II. Doffer ·noun A revolving cylinder, or a vibrating bar with teeth, in a carding machine, which doffs, or strips off, the cotton from the cards.
III. Doffer ·add. ·noun A revolving cylinder, or a vibrating bar, with teeth, in a carding machine, which doffs, or strips off, the fiber from the cards.