CARDING a.
l, or other fiber, by subjecting it to the action of cylinders, or drum covered with wire-toothed cards, revoling nearly in contact with each other, at different rates of speed, or in opposite directions, The staple issues in soft sheets, or in slender rolls called sivers.
DIFFERENTIAL a.
d by the difference of their effect upon the needle. -- Differential gearing, a train of toothed wheels, usually an epicyclic train, so arranged as to constitute a differential motion. -- Differential motion, a mechanism in which a simple differential combination produces such a change of motion or force as would, wi…