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Concept
Ring spinning
Résumé
Ring spinning is a spindle-based method of spinning fibres, such as cotton, flax or wool, to make a yarn. The ring frame developed from the throstle frame, which in its turn was a descendant of Arkwright's water frame. Ring spinning is a continuous process, unlike mule spinning which uses an intermittent action. In ring spinning, the roving is first attenuated by using drawing rollers, then spun and wound around a rotating spindle which in its turn is contained within an independently rotating ring flyer. Traditionally ring frames could only be used for the coarser counts, but they could be attended by semi-skilled labour.
The Saxony wheel was a double band treadle spinning wheel. The spindle rotated faster than the traveller in a ratio of 8:6, drawing was done by the spinners fingers.
The water frame was developed and patented by Arkwright in the 1770s. The roving was attenuated (stretched) by draughting 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.
The throstle frame was a descendant of the water frame. It used the same principles, was better engineered and driven by steam. In 1828 the Danforth throstle frame was invented in the United States. The heavy flyer caused the spindle to vibrate, and the yarn snarled every time the frame was stopped. Not a success.
The Ring frame is credited to John Thorp in Rhode Island in 1828/9 and developed by Mr. Jencks of Pawtucket, Rhode Island, who Richard Marsden names as the inventor.
Machine shops experimented with ring frames and components in the 1830s. The success of the ring frame, however, was dependent on the market it served and it was not until industry leaders like Whitin Machine Works in the 1840s and the Lowell Machine Shop in the 1850s began to manufacture ring frames that the technology started to take hold.
Source officielle
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