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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.
The pointing machine is used for making one-to-one copies of existing sculptures and to reproduce models made of plaster, modeling clay or modeling wax in materials like stone or wood. It is not possible to use a pointing machine to produce enlarged or reduced copies; the traditional instruments for this are a set of calipers or a three ...
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.
A sewing needle. A sewing needle, used for hand-sewing, is a long slender tool with a pointed tip at one end and a hole (or eye) to hold the sewing thread.The earliest needles were made of bone or wood; modern needles are manufactured from high carbon steel wire and are nickel- or 18K gold-plated for corrosion resistance.
His first machine produced a coarse wool, for stockings. Refused a patent by Queen Elizabeth I , he built an improved machine that increased the number of needles per inch from 8 to 20 and produced a silk of finer texture, but the queen again denied him a patent because of her concern for the employment security of the kingdom's many hand ...
The latest type of this machine used a vertical needle bar and a straight needle. [ 2 ] Wilson had the good fortune soon after securing his patent to interest Nathaniel Wheeler, a young carriage maker who possessed some capital, in his machine, and out of this connection grew the great house of Wheeler & Wilson.
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.
Complex forms made on a wood lathe develop from surprisingly few types of cuts: parting, planing, bead, cove, and hollowing. Parting separates the wood from the holding device or establishes depth cuts. Planning is done with a tool in which the bevel below the cutting edge supports wood fibers, just as in a typical wood planer.