[21] The mule revolutionised cotton spinning by combining the roller drafting of Arkwright's h2o frame Along with the carriage drafting and spindle tip twisting of James Hargreaves's spinning jenny, manufacturing a high quality yarn. Self-performing mules were being Utilized in Bolton mills right until the nineteen sixties developing good yarn.[21] https://websitedesignbolton42943.blogsidea.com/36582604/little-known-facts-about-bolton-website-design