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Cold-cranking simulator simulates rheological process of "an average engine" during cold starting. The engine's starter motor was replaced with a small series wound universal motor, a typical sewing machine motor, and the engine, with a specially designed cold cylinder and an insulated cylindrical rotor with a pair of parallel flats.
The universal motor is modified in several ways to allow for proper AC supply operation. There is a compensating winding typically added, along with laminated pole pieces, as opposed to the solid pole pieces found in DC motors. [2] A universal motor's armature typically has far more coils and plates than a DC motor, and hence fewer windings per ...
During World War II, Ames came across the realization that thread could snarl and jam a sewing machine motor, Blanche then used that same principle to design a device to ensnare low-flying aircraft. The machine was demonstrated on the lawn at Borderland for guests from the Pentagon.
Early sewing machines of the 19th century oscillate their shuttles back and forth on linear horizontal tracks—an arrangement called a "transverse shuttle". A vibrating shuttle machine, by contrast, 'vibrates' its shuttle in a circular arc. This movement represents less total mechanical motion, which means less friction, less wear, higher ...
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.
Allen Benjamin Wilson circa 1856 Portrait of Allen Benjamin Wilson Allen Benjamin Wilson. Allen Benjamin Wilson (1823–1888) was an American inventor famous for designing, building and patenting some of the first successful sewing machines. [1]
Philip H. Diehl (January 29, 1847 – April 7, 1913) was a German-American mechanical engineer and inventor who held several U.S. patents, including electric incandescent lamps, electric motors for sewing machines and other uses, and ceiling fans.
The motor bolted right to the machine's pillar, where—thanks to its compact size—it could remain even when the machine was tilted into its cabinet or enclosed within its cover. This was an improvement over earlier pivoting-motor designs, [ 24 ] large offset belt-drive motors, [ 25 ] and the many schemes for entirely replacing the handwheel ...
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