Joseph-Marie Jacquard was not the inventor of the programmable loom, as many people imagine, actually he created an attachment to the loom, which played a very important role not only in the textile industry, but also in development of other programmable machines, such as computers, for example the Analytical Engine of Charles Babbage.
Joseph-Marie Charles (known as Jacquard after the nickname of his family) was born on 7th of July, 1752, in Lyon, France. He was the fifth of nine children of Jean Charles (nicknamed Jacquard) (1724-1772), a master weaver of brocaded fabrics, and his wife, Antoinette Rive. From the nine children, only Joseph and his sister Clémence (born 1747) survived to adulthood. Like the sons of many Lyons weavers, Joseph did not go to school, because his father needed him to perform odd jobs in the workshop. He learned to read as a thirteen-year-old boy by his brother-in-law Barret, a cultured man.
Antoinette Rive died in 1762, and after his end the family slid into poverty. Surprisingly, when Jean Charles died in 1772, Joseph inherited more assets than anyone expected: his father's apartment, the workshop with two looms, as well as some other real estate. In 1778, he listed his occupations as master weaver and silk merchant. In the same year he married to the rich widow Claudine Boichon. Their only son, Jean-Marie, was born in April, 1779. In the next few years however, Joseph took part in a number of dubious entrepreneurial investments and soon fell deeply into debt and was brought to court, loosing his inheritance and part of his wife's property. So in 1783 he slid again into poverty. Claudine stayed with their son in Lyon, working in a straw-hat factory, while Joseph tried his luck in other places as a lime-burner, a labourer in a plaster quarry, etc., before to return in Lyon in the end of 1780s.
In 1793, Joseph-Marie and his son took part in the unsuccessful defense of Lyon against the troops of the Convention, and when the city fell, the two fled together, then adopted false names and joined the Revolutionary army. After seeing some active service, in 1797 Jean-Marie was shot down in a battle, and Joseph-Marie Jacquard returned to Lyon in 1798, lost again the plot of his life. After a stay in the hospital, he worked at various odd jobs—repairing looms, weaving, bleaching straw hats, driving horse-drawn carts, etc. It was probably in 1799, when he decided to dabble in automation of weaving, an occupation, which will made his name unforgettable.
In July 1800 Joseph Jacquard applied for his first patent—a treadle loom, then a loom to weave fishing nets in 1803, and starting in 1804, the Jacquard loom, which would weave patterned silk automatically. First looms of Jacquard were unsuccessful however, not only because were not operating well, but also for strong opposition by the silk-weavers. When in 1801, after a successful exposition in Paris, Jacquard exhibited his first loom in Lyon, the weavers, thinking their bread and butter endangered by the new machine, mobbed the inventor and broke up his invention. Jacquard describes the occurrence himself. "The iron was sold for old iron, the wood for fuel, while I was delivered over to universal ignominy."
It is out of the question, that Jacquard was informed about the earlier attempts of his fellow-citizens Basile Bouchon, Jean Falcon and Jacques Vaucanson to create an automated loom. After his not very successful first looms, the breaktrough came in 1803, when at the urging of a Lyon silk merchant, Jacquard went to Paris and visited the Conservatoire des Arts et Metiers. There he examined the loom of Jacques de Vaucanson and suggested various improvements in his own, which he gradually perfected to its final state.
One of the first improvements of Jacquard was to eliminate the paper strip from Vaucanson's mechanism and to return to Falcon's chain of punched cards. Then, he tried to avoid the expensive metal cylinders of Vaucanson. In fact, the term Jacquard loom is a misnomer, actually Jacquard's invented an attachment (head), that adapts to a great many type of looms, that allow the weaving machine to create the intricate patterns often seen in Jacquard weaving. Thus any loom that uses the attachment is called a Jacquard loom.
Each position in the punched card of the loom corresponds to a hook, which can either be raised or stopped dependant on whether the hole is punched out of the card or the card is solid. The hook raises or lowers the harness, which carries and guides the warp thread so that the weft will either lie above or below it. The sequence of raised and lowered threads is what creates the pattern. Each hook can be connected via the harness to a number of threads, allowing more than one repeat of a pattern. For example, a loom with a 500-hook head might have four threads connected to each hook, resulting in a fabric that is 2000 warp ends wide with four repeats of the weave going across.
An old Jacquard loom
In April 1805 emperor Napoleon and empress Josephine visited Lyon, and during their tour, they viewed Jacquard's new loom and granted the patent for Jacquard's loom to the city of Lyon. In return, Jacquard received a lifelong pension of 3000 francs, a huge sum for the time. Moreover, he received a royalty of 50 francs for each loom that was bought and used during the period of six years. This was a generous attitude towards the inventor and made him rich. By 1812 there were some 11000 Jacquard looms in use in France and despite energetic French efforts to keep the technology secret, they were also beginning to appear in other countries.
Joseph Marie Jacquard died at Oullins (Rhône), on 7th of August, 1834.
The modern Jacquard looms are using image scanners, allowing any visual image to be woven to be inputted into the loom. The scanner, in turn, is linked to a computer, that converts the image into pixels in a program, which is used to control the hooks that lift the correct warp threads to form the image during the weaving process.