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2. PCC streetcar - Wikipedia

   en.wikipedia.org/wiki/PCC_streetcar

   For the PCC however, there were more than ten resistance/speed points; Westinghouse developed the XD-323 underfloor rotary accelerator for the PCC's motor control with 99 resistance points. It was installed in the first Pittsburgh car, number 100, and minor modifications allowed use in the last PCCs produced in North America for San Francisco ...

3. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Ceiling fan. A modern ceiling fan. A ceiling fan mid-spin. A ceiling fan is a fan mounted on the ceiling of a room or space, usually electrically powered, that uses hub-mounted rotating blades to circulate air. They cool people effectively by increasing air speed. Fans do not reduce air temperature or relative humidity, unlike air-conditioning ...

4. Casablanca Fan Company - Wikipedia

   en.wikipedia.org/wiki/Casablanca_Fan_Company

   In 1983, Casablanca introduced the world's first computerized ceiling fan control, called Inteli•Touch. The Inteli•Touch system was marketed as being easy to install, as the fan easily replaced a standard two-wire ceiling-mounted lighting fixture, and the wall control unit replaced a standard two-wire wall toggle switch.

5. George Westinghouse - Wikipedia

   en.wikipedia.org/wiki/George_Westinghouse

   George Westinghouse Jr. (October 6, 1846 – March 12, 1914) was a prolific American inventor, engineer, and entrepreneurial industrialist based in Pittsburgh, Pennsylvania, who is best known for his creation of the railway air brake and for being a pioneer in the development and use of alternating current (AC) electrical power distribution.

6. Westinghouse Electric Corporation - Wikipedia

   en.wikipedia.org/wiki/Westinghouse_Electric...

   Westinghouse Electric was founded by George Westinghouse in Pittsburgh, Pennsylvania, on January 8, 1886. Building on the advancement of AC technology in Europe, [12] the firm became active in developing alternating current (AC) electric infrastructure throughout the United States. The company's largest factories were located in East Pittsburgh ...

7. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   Fan (machine) A household electric fan. A large cylindrical fan. A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner.