Sewing machine
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A sewing machine is a machine used to sew fabric and materials together with thread. Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. Since the invention of the first sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790, the sewing machine has greatly improved the efficiency and productivity of the clothing industry.
Diagram of a modern sewing machine
Newton Wilson's copy of Saint's sewing machine
An 1880 hand-cranked machine from the Wheeler and Wilson Company
Sewing Machine from the Everyday Collection of the Museu da Capitania de Ilhéus
Lockstitch
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A lockstitch is the most common mechanical stitch made by a sewing machine. The term "single needle stitching", often found on dress shirt labels, refers to lockstitch.
Correct and incorrect thread tension