Spinning frame stolen from) another inventor called Thomas Highs. With the help of other local craftsmen the team produced the spinning frame, which produced a stronger thread than the spinning jenny produced by James Hargreaves. The frame employed the draw rollers invented by Lewis Paul to stretch, or attenuate, the yarn. The roller spinning process starts with a thick 'string' of loose fibres called a "roving", which is passed between three pairs of rollers, each pair rotating slightly faster than the previous one. In this way it is reduced in thickness and increased in length before a strengthening twist is added by
Cotton-spinning machinery weft. The spinning mule or mule jenny was created in 1779 by Samuel Crompton. It was a combination of Arkwright's water frame and Hargreaves' spinning jenny. It was so named because it was a hybrid of these two machines. The mule consisted of a fixed frame containing a creel of bobbins holding the roving, connected through the headstock to a parallel carriage containing the spindles. It used an intermittent process: On the outward traverse, the rovings were paid out, and twisted, and the return traverse, the roving was clamped and the spindles reversed taking up the newly spun thread. The