Throstle

“The spinning frame, or throstle, is made with two sets of drawing rollers, one on each side. Between these the roving bobbins are placed, and the rove is drawn through them to the requisite fineness, and formed into thread by the action of the spindles and flyers, which are placed in front of each set of rollers, at such distances apart from one another as may be required for the different-sized bobbins and counts of yarn to be spun.” — Encyclopedia Britannica, 1893

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