1851 Great Exhibition: Official Catalogue: Class VI.: B. Berry and Sons
48. BERRY, B., and SONS, Bowling, near Bradford.
Machinery for the manufacture of worsted yarns, exhibited in operation. Consisting of double gill box, open drawing, first process; double gill box, two spindles, second process; drawing head, two spindles, third process; finishing head, four spindles, fourth process; roving head, six spindles, fifth process; spinning frame, sixteen spindles on each side or thirty-two spindles, sixth process.
[This machinery exhibits the processes ordinarily employed in the preparation and spinning of worsted yarns, after the wool has been washed and combed. The slivers, or long fibres of combed wool, are prepared by being gradually drawn out in passing through a series of rollers of regularly-increasing velocity. When thus sufficiently extended and attenuated, they are sent forward to the spinning frame, where they are further drawn out, receive the twist requisite to give strength to the yarn, and are wound upon the bobbins. A yard of these slivers is thus drawn out into about 2,000 yards of yarn.— G. T.]
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