Editing Richard Arkwright (section)

===Spinning frame===
In 1768, Arkwright and [[John Kay (spinning frame)|John Kay]], a clockmaker,<ref>{{Cite journal |title=The Origins of Engineering in Lancashire |first1=A. E. |last1=Musson |first2=E. |last2= Robinson |journal=The Journal of Economic History |volume=20 |issue=2 |date=June 1960 |pages=209–233 |jstor=2114855 |publisher=Cambridge University Press; Economic History Association|doi=10.1017/S0022050700110435 |s2cid=154008652 }}</ref> returned to Preston, renting rooms in a house on Stoneygate (now called [[Arkwright House, Preston|Arkwright House]]), where they worked on a spinning machine. In 1769 Arkwright patented the [[spinning frame]], a machine which produced twisted threads (initially for [[warp (weaving)|warp]]s only), using wooden and metal cylinders rather than human fingers. This machine, initially powered by horses (see [[#Cromford Mill|below]]), greatly reduced the cost of cotton-spinning, and would lead to major changes in the textile industry.