Lee's brother, with seven of the workmen, succeeded in escaping from France with their frames, leaving two behind. On James Lee's return to Nottinghamshire, he was joined by one Ashton, a miller of Thoroton, who had been instructed in the art of frame-work knitting by the inventor himself before he left England. These two, with the workmen and their frames, began the stocking manufacture at Thoroton, and carried it on with considerable success. The place was favourably situated for the purpose, as the sheep pastured in the neighbouring district of Sherwood yielded a kind of wool of the longest staple. Ashton is said to have introduced the method of making the frames with lead sinkers, which was a great improvement.
The number of looms employed in different parts of England gradually increased; and the machine manufacture of stockings eventually became an important branch of the national industry.
One of the most important modifications in the Stocking-Frame was that which enabled it to be applied to the manufacture of lace on a large scale. In 1777, two workmen, Frost and Holmes, were both engaged in making point-net by means of the modifications they had introduced in the stocking-frame; and in the course of about thirty years, so rapid was the growth of this branch of production that 1500 point-net frames were at work, giving employment to upwards of 15,000 people. Owing, however, to the war, to change of fashion, and to other circumstances, the Nottingham lace manufacture rapidly fell off; and it continued in a decaying state until the invention of the Bobbin-net Machine by John Heathcoat, late M.P. for Tiverton, which had the effect of at once re-establishing the manufacture on solid foundations.
John Heathcoat was the youngest son of a respectable small farmer at Duffield, Derbyshire, where he was born in 1783. When at school he made steady and rapid progress, but was early removed from it to be apprenticed to a frame-smith near Loughborough. The boy soon learnt to handle tools with dexterity, and he acquired a minute knowledge of the parts of which the stocking-frame was composed, as well as of the more intricate warp-machine. At his leisure he studied how to introduce improvements in them, and his friend, Mr.
Bazley, M.P., states that as early as the age of sixteen, he conceived the idea of inventing a machine by which lace might be made similar to Buckingham or French lace, then all made by hand.
The first practical improvement he succeeded in introducing was in the warp-frame, when, by means of an ingenious apparatus, he succeeded in producing "mitts" of a lacy appearance, and it was this success which determined him to pursue the study of mechanical lace-making. The stocking-frame had already, in a modified form, been applied to the manufacture of point-net lace, in which the mesh was LOOPED as in a stocking, but the work was slight and frail, and therefore unsatisfactory. Many ingenious Nottingham mechanics had, during a long succession of years, been labouring at the problem of inventing a machine by which the mesh of threads should be TWISTED round each other on the formation of the net.
Some of these men died in poverty, some were driven insane, and all alike failed in the object of their search. The old warp-machine held its ground.
When a little over twenty-one years of age, Heathcoat went to Nottingham, where he readily found employment, for which he soon received the highest remuneration, as a setter-up of hosiery and warp-frames, and was much respected for his talent for invention, general intelligence, and the sound and sober principles that governed his conduct. He also continued to pursue the subject on which his mind had before been occupied, and laboured to compass the contrivance of a twist traverse-net machine. He first studied the art of making the Buckingham or pillow-lace by hand, with the object of effecting the same motions by mechanical means. It was a long and laborious task, requiring the exercise of great perseverance and ingenuity. His master, Elliot, described him at that time as inventive, patient, self-denying, and taciturn, undaunted by failures and mistakes, full of resources and expedients, and entertaining the most perfect confidence that his application of mechanical principles would eventually be crowned with success.
It is difficult to describe in words an invention so complicated as the bobbin-net machine. It was, indeed, a mechanical pillow for making lace, imitating in an ingenious manner the motions of the lace-maker's fingers in intersecting or tying the meshes of the lace upon her pillow. On analysing the component parts of a piece of hand-made lace, Heathcoat was enabled to classify the threads into longitudinal and diagonal. He began his experiments by fixing common pack-threads lengthwise on a sort of frame for the warp, and then passing the weft threads between them by common plyers, delivering them to other plyers on the opposite side; then, after giving them a sideways motion and twist, the threads were repassed back between the next adjoining cords, the meshes being thus tied in the same way as upon pillows by hand. He had then to contrive a mechanism that should accomplish all these nice and delicate movements, and to do this cost him no small amount of mental toil.