Summary

Grace Rogers Cooper The Scholfield Wool-Carding Machines

Carding is the necessary preliminary step by which individual short fibers of wool or cotton are separated and cleaned of foreign materials so they can be spun into yarn. The thoroughness of the carding determines the quality of the yarn, while the position in which the carded fibers are laid determines its type. The fibers are laid parallel in order to spin a smooth compact yarn, or they are crossed and intermingled to produce a soft bulky yarn.
Source: Gutenberg

Grace Rogers Cooper The Scholfield Wool-Carding Machines

The wool was fed into the machine from a moving apron, locked in by a pair of rollers, and passed from the taker-in roller to the angle stripper. This latter roller transferred the wool on to the main cylinder and acted as a stripper for the first worker roller. After passing through two more workers and strippers, the wool was prepared for leaving the main cylinder by the fancy, a roller with longer wire teeth set to reach into the card clothing of the large cylinder. Then the doffer roller picked up the carded fibers from the main cylinder in 4-inch widths the length of the roller.
Source: Gutenberg

Grace Rogers Cooper The Scholfield Wool-Carding Machines

Carding is thus the important first step. For processing short-length wool fibers its mechanization proved most difficult to achieve.
To the United States in 1793 came John and Arthur Scholfield, bringing with them the knowledge of how to build a successful wool-carding machine. From this contribution to the technology of our then infant country developed another new industry.
Source: Gutenberg

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