Spinning jenny spinning jenny. It started the factory system. The spinning jenny was invented by James Hargreaves. He was born in Oswaldtwistle, near Blackburn, around 1720. Blackburn was a town with a population of about 5,000, known for the production of "Blackburn greys," cloths of linen warp and cotton weft initially imported from India. They were usually sent to London to be printed. At the time, cotton production could not keep up with demand of the textile industry, and Hargreaves spent some time considering how to improve the process. The flying shuttle (John Kay 1733) had increased yarn demand by the weavers
Cotton-spinning machinery double band treadle spinning wheel where the spindle rotated faster than the traveller in a ratio of 8:6, drawing on both was done by the spinners fingers. In 1738 Lewis Paul and John Wyatt of Birmingham patented the Roller Spinning machine and the flyer-and-bobbin system, for drawing cotton to a more even thickness, using two sets of rollers that travelled at different speeds. This principle was the basis of Richard Arkwright's later water frame design. By 1742 Paul and Wyatt had opened a mill in Birmingham which used their new rolling machine powered by a donkey, this was not profitable