intent O'erlooks the work; the carded wool, he says, So smoothly lapped around those cylinders, Which gently turning, yield it to yon cirue Of upright spindles, which with rapid whirl Spin out in long extenet an even twine. Spinning jenny The spinning jenny is a multi-spool spinning wheel. It was invented circa 1764, its invention attributed to James Hargreaves in Stanhill, near Blackburn, Lancashire. The spinning jenny was essentially an adaptation of the spinning wheel. Water frame The Water frame was developed and patented by Arkwright in the 1770s. The roving was attenuated (stretched) by drafting rollers and twisted by winding it onto a spindle. It was heavy large scale machine that needed to be driven by power, which in the late 18th century meant by a water wheel. Cotton mills were designed for the purpose by Arkwright, Jedediah Strutt and others along the River Derwent in Derbyshire. Water frames could only spin weft. Spinning mule 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 rival machine, the throstle frame or ring frame was a continuous process, where the roving was drawn twisted and wrapped in one action. The spinning mule became self-acting (automatic) in 1830s. The mule was the most common spinning machine from 1790 until about 1900, but was still used for fine yarns until the 1960s. A cotton mill in 1890 would contain over 60 mules, each with 1320 spindles. Between the years 1824 and 1830 Richard Roberts invented a mechanism that rendered all parts of the mule self-acting, regulating the rotation of the spindles during the inward run of the carriage. The Platt Brothers, based in Oldham, Greater Manchester were amongst the most prominent machine makers in this field of work. At first this machine was only used to spin coarse and low-to-medium counts, but it is now employed to spin all counts of yarn. Throstle