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Diagram of a modern sewing machine Animation of a modern sewing machine as it stitches. 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.
The White Family Rotary or White FR, later White Rotary or White Rotary Electric, was the first rotary hook sewing machine produced by the White Sewing Machine Company, introduced circa 1900. [1] It joined the successful White Vibrating Shuttle on White's expanding product line and eventually eclipsed it. It was originally sold as a treadle ...
The Singer Model 27 and later model 127 were a series of lockstitch sewing machines produced by the Singer Manufacturing Company from the 1880s to the 1960s. (The 27 and the 127 were full-size versions of the Singer 28 and later model 128 which were three-quarters size). They were Singer's first sewing machines to make use of "vibrating shuttle ...
A rare Gem-brand sewing machine produced by the White Sewing Machine Company, circa 1887. A sewing machine is a machine used to stitch fabric and other materials together with thread. [1] Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. [2]
The Singer Featherweight is a model series of lockstitch domestic sewing machines produced by the Singer Manufacturing Company from 1933 to 1968, [1] significant among sewing machines for their continuing popularity, active use by quilters and high collector's value. [2] [3] [4]
As the motor accelerates, the slip frequency decreases and induced current flows at greater depths in the winding. By tapering the profile of the rotor bars to vary their resistance at different depths, or by constructing a double squirrel cage, with a combination of high and low impedance rotor in parallel the motor can be arranged to produce ...
White Sewing Machine Company manufactured automobiles, trucks, buses and agricultural machinery White Sewing Machine Company 1941 company book. The White Sewing Machine Company was a sewing machine company founded in 1858 in Templeton, Massachusetts, by Thomas H. White and based in Cleveland, Ohio, since 1866.
The switched reluctance motor (SRM) is a type of reluctance motor. Unlike brushed DC motors , power is delivered to windings in the stator (case) rather than the rotor . This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need for a commutator .