Framework knitting

A stocking frame was a mechanical knitting machine used in the textiles industry. It was invented by William Lee of Calverton near Nottingham in 1589. Its use, known traditionally as framework knitting, was the first major stage in the mechanisation of the textile industry, and played an important part in the early history of the Industrial Revolution. It was adapted to knit cotton and to do ribbing, and by 1800 had been adapted as a lace making machine.

Lee's machine consisted of a stout wooden frame. It did straight knitting, not tubular knitting. It had a separate needle for each loop - these were low carbon steel bearded needles where the tips were reflexed and could be depressed onto a hollow, closing the loop. The needles were supported on a needle bar that passed back and forth, to and from the operator. The beards were simultaneously depressed by a presser bar. The first machine had eight needles per inch and was suitable for worsted. The next version had 16 needles per inch and was suitable for silk.

The mechanical movements:

The machine imitated the movements of hand knitters. Lee demonstrated the operation of the device to Queen Elizabeth I, hoping to obtain a patent, but she refused, fearing the effects on hand-knitting industries. The original frame had eight needles to the inch, which produced only coarse fabric. Lee later improved the mechanism with 20 needles to the inch. By 1598 he was able to knit stockings from silk, as well as wool, but was again refused a patent by James I. Lee moved to France, under the patronage of Henri IV, with his workers and his machines, but was unable to sustain his business. He died in Paris around 1614. Most of his workers returned to England with their frames, which were sold in London.

The commercial failure of Lee's design might have led to a dead-end for the knitting machine, but John Ashton, one of Lee's assistants, made a crucial improvement by adding the mechanism known as a "divider". This is used after the jack sinkers have pulled down a large loop over all the needles, and the sinker bar has separated out the loop, the dividers are rested on the loop to give the bearded needles guidance as they are pulled forward.

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