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The needle is set at a right angle to the surface that is measured and the stop is tightened. The sculptor then takes the whole cross, pointing machine and all, to the block of stone or wood and sets it up on the identical, corresponding basic points. The needle that defines the measuring point can slide.
Invention of mechanical sewing machine Charles Fredrick Wiesenthal (1726–1789) [ 1 ] was a German-American physician and inventor who was awarded the patent for the first known mechanical device for sewing in 1755.
Using more than 30,000 wooden movable types, Wang Zhen printed a hundred copies of his county gazetteer, Records of Jingde County (Jingde xianzhi 旌德縣志), a text containing more than 60,000 characters. [64] Wooden movable type printing became relatively common during the Ming dynasty and became widespread during the Qing era. [64]
Long bone fragments can be shaped, by scraping against an abrasive stone, into such items as arrow and spear points, needles, awls, and fish hooks. Other bone tools include spoons, knives, awls, pins, fish hooks, needles, flakers, hide scrapers and reamers. They made musical rasps, flutes and whistles as well as toys have also been made of bone.
Between 1832 and 1835 Walter Hunt made a lock-stitch sewing machine, but abandoned it. Cooper, Grace Rogers (1968). Invention of the Sewing machine. Smithsonian Institution. pp. 243 v. OCLC 453666. Sometime between 1832 and 1834 he produced at his shop in New York a machine that made a lockstitch. Fulton, Robert (2008). Inventors and Inventions ...
Thomas Blanchard in his later years. Thomas Blanchard (June 24, 1788 – April 16, 1864) was an American inventor who lived much of his life in Springfield, Massachusetts, where in 1819, he pioneered the assembly line style of mass production in America, and also invented the first machining lathe for interchangeable parts.
Model of Louis-Nicholas Robert's continuous paper making machine at Frogmore Paper Mill. Following Robert's successful model, built in 1798, Saint-Léger Didot insisted that Robert apply for a patent. Prior to 1798, paper was made one sheet at a time, by dipping a rectangular frame or mould with a screen bottom into a vat of pulp.
Thimonniers Stitch - a chain stitch formed with a barbed needle. Barthélemy Thimonnier (19 August 1793 in L'Arbresle, Rhône - 5 July 1857 in Amplepuis) was a French inventor, who is attributed with the invention of the first sewing machine that replicated sewing by hand.