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  2. Steam whistle - Wikipedia

    en.wikipedia.org/wiki/Steam_whistle

    A recording of a mass blow of traction engine steam whistles. The whistle consists of the following main parts, as seen on the drawing: the whistle bell (1), the steam orifice or aperture (2), and the valve (9). When the lever (10) is actuated (usually via a pull cord), the valve opens and lets the steam escape through the orifice. The steam ...

  3. Train whistle - Wikipedia

    en.wikipedia.org/wiki/Train_whistle

    One of two (front and rear) whistles on steam locomotive 60163 Tornado. A train whistle or air whistle (originally referred to as a train trumpet or air trumpet) is an audible signaling device on a steam or gas locomotive, used to warn that the train is approaching, and to communicate with rail workers.

  4. Physics of whistles - Wikipedia

    en.wikipedia.org/wiki/Physics_of_whistles

    These devices are whistles that do not radiate sound, but are still aerodynamic whistles. The upper figure on the right shows the basic arrangement of one version of the device. The circle on the left is the fluid source (air or liquid). A jet is formed that either goes into the upper or lower channel. The black lines are the feedback paths.

  5. Nathan Manufacturing - Wikipedia

    en.wikipedia.org/wiki/Nathan_Manufacturing

    Robert Swanson founded Airchime Ltd., beginning by making custom steam whistles in his British Columbia home. He preferred the sound of steam whistles over the single-chime horns made by Leslie and Westinghouse Air Brake Company. In 1949, he introduced the Hexatone H5, of which some odd (88) were made according to Robert Eugene Swanson's ...

  6. Calliope (music) - Wikipedia

    en.wikipedia.org/wiki/Calliope_(music)

    Calliope on the Minne-Ha-Ha, a stern-wheeler on Lake George, New York Kitch Greenhouse Steam Calliope at the Ohio Historical Society – July 2006 Fairground calliope trailer being hauled by a U.S.-built traction engine – New Orleans Mardi Gras 2007 Steam calliope (c. 1901) built by George Kratz and used on the showboat French's New Sensation at The Mariners' Museum

  7. Robert Swanson (inventor) - Wikipedia

    en.wikipedia.org/wiki/Robert_Swanson_(inventor)

    Robert Swanson (1905–1994) [1] was a Canadian researcher and developer, and is credited with the invention of the first five and six-chime air horns for use on locomotives. Swanson had worked as the chief engineer of a company called Victoria Lumber Manufacturing in the 1920s, when he developed a hobby for making steam whistles for ...

  8. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    Steam whistles were also used as a warning device if a supply of steam was present, such as a sawmill or factory. These were common before fire sirens became widely available, particularly in the former Soviet Union. Fire horns, large compressed air horns, also were and still are used as an alternative to a fire siren.

  9. Whistle - Wikipedia

    en.wikipedia.org/wiki/Whistle

    A party whistle A metal pea whistle. A whistle is a musical instrument which produces sound from a stream of gas, most commonly air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.