He teamed up with a clockmaker called John Kay and by the late 1760's they had a workable machine that could spin four strands of cotton yarn at the same time. Arkwright paid for a patent in 1769 ...

(JNS) A 12,000-year-old tool used to spin fibers into yarn has been identified in an ... This ancient spinning machines paved the way for future wheel-based rotational innovations that ...