When was Jenny's spinning machine invented and improved by whom?

65438+In 1960s, Hargreaves, the weaver, invented the hand spinning machine of Jenny Machine. Jenny can spin a lot of cotton thread at a time, which greatly improves the productivity. The appearance of Jenny machine marked the beginning of the British industrial revolution. The appearance of Jenny machine enabled a large-scale weaving factory to be established. The invention of Jenny machine was the beginning of the first industrial revolution. Its invention was "kicked out" by a person and then started. This story is still true! It starts with a day in 1764. James hargreaves, a textile worker in Lancashire, England, came home that night. When he opened the door, he accidentally kicked over the spinning machine that his wife was using. His first reaction was to straighten the spinning machine quickly. But when he bent down, he suddenly froze. It turned out that he saw that the spinning machine that had been kicked down was still turning, but the spindle that had been horizontal had now become upright. It suddenly occurred to him that if several spindles were arranged vertically and driven by a spinning wheel, wouldn't it be possible to spin more yarns at one time? Hargreaves was so excited that he immediately tried to do so. The next day, he built a new spinning machine, and a spinning wheel drove eight vertical spindles, which improved the efficiency eight times at once. 1764 made a spinning machine named after her daughter Jenny. This is the earliest multi-spindle manual spinning machine, equipped with eight spindles, which are fed by rollers. Suitable for spinning cotton, wool and hemp fibers. The appearance of Jenny spinning machine caused the panic of a large number of manual spinning machines at that time. They rushed into Hargreaves' house and destroyed the machine. 1768 J. Hargreaves and others set up a spinning workshop in Nottingham to produce knitting yarn with Jenny spinning machine. Because he failed to apply for a patent in those years, he had to make his own Jenny machine to make money. Jenny machine is not only efficient, but also has better yarn quality, so Hargreaves' business is good and Jenny machine is gradually popularized. That night, after dinner, Mr. and Mrs. Hargreaves talked about the growing wealth that Jenny brought them. Suddenly a rush of footsteps appeared at his door, then the door was violently knocked down and a group of angry men and women rushed in. They couldn't help saying that they destroyed all the Jenny machines made in the room: "Go to hell with the harmful machines you made!" Someone even set fire to Hargreaves' house. The couple were driven out of a small town in Lancashire. It turns out that after the British industrial revolution, a large number of farmers who lost their land flooded into cities to work for factory owners to make a living. At that time, the British occupied India as a colony, and the cotton textiles produced in India were cheap and popular for a while, which triggered the prosperity of the British cotton spinning industry. However, due to the invention of shuttle technology by mechanic Kay, the productivity of textile machinery has been greatly improved The cotton yarn needed for weaving is still slowly spun by spinning wheels of many household handicrafts. Therefore, cotton yarn is in short supply and the purchase price is higher. The invention of "Jenny machine" increased the output of cotton yarn, so the price of cotton yarn purchased by weaving mills fell. Those spinning workers who don't use Jenny machines not only have low output, but also can't sell at a good price. After a long time, their anger broke out and the scene of destroying the plane happened. Mr. and Mrs. Hargreaves had to live in the streets of Nottingham, but they still tried to improve Jenny's machine. 1768, Hargreaves obtained the patent; By 1784, "Jenny machine" has been increased to 80 spindles. Four years later, there were 20,000 Jenny machines in Britain.