Doffer

Doff"er (?), n. (Mach.) A revolving cylinder, or a vibrating bar with teeth, in a carding machine, which doffs, or strips off, the cotton from the cards. Ure.

Doff"er (?), n. 1. (Mach.) A revolving cylinder, or a vibrating bar, with teeth, in a carding machine, which doffs, or strips off, the fiber from the cards.

2. (Spinning) A worker who replaces full bobbins by empty ones on the throstle or ring frames.