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  2. Roller coaster wheel assembly - Wikipedia

    en.wikipedia.org/wiki/Roller_coaster_wheel_assembly

    Side friction wheels keep the train centered in the track, avoiding derailment. The final set of wheels in the assembly are known as running wheels, road wheels, or tractor wheels. Running wheels are typically the largest set of wheels in the assembly, and roll on the top of the rails. These wheels bear the weight of the train.

  3. Track brake - Wikipedia

    en.wikipedia.org/wiki/Track_brake

    The truck of a SEPTA Kawasaki light rail vehicle showing the track brake magnets between the wheels. A magnetic track brake (Mg brake) is a brake for rail vehicles. It consists of brake magnets, pole shoes, a suspension, a power transmission and, in the case of mainline railroads, a track rod. When current flows through the magnet coil, the ...

  4. Gomaco Trolley Company - Wikipedia

    en.wikipedia.org/wiki/Gomaco_Trolley_Company

    The Gomaco Trolley Company is a manufacturer of vintage-style streetcars (alternatively called trolleys in the US, or trams in much of the world), located in Ida Grove, Iowa, United States. The company has supplied replica-vintage streetcars to several transit systems in the US, and has also restored and rebuilt authentic vintage streetcars for ...

  5. Jacobs Vehicle Systems - Wikipedia

    en.wikipedia.org/wiki/Jacobs_Vehicle_Systems

    Jacobs Vehicle Systems, Inc. is an American company that engineers, develops and manufacturers commercial vehicle retarding and valve actuation technologies.The company produces light-duty, medium-duty, and heavy-duty engine brakes, recreational vehicle exhaust brakes, aftermarket parts and tune-up kits to heavy-duty diesel engine manufacturers in its domestic market in America, as well as in ...

  6. Railway air brake - Wikipedia

    en.wikipedia.org/wiki/Railway_air_brake

    A comparatively simple brake linkage. In the air brake's simplest form, called the straight air system, compressed air pushes on a piston in a cylinder. The piston is connected through mechanical linkage to brake shoes that can rub on the train wheels, using the resulting friction to slow the train.

  7. Wickham trolley - Wikipedia

    en.wikipedia.org/wiki/Wickham_trolley

    The Wickham trolley was a railway engineering personnel carrier built by D. Wickham & Co of Ware, Hertfordshire. This long established firm introduced their rail trolley in 1922 as a lightweight track inspection and maintenance vehicle. This was a success and production of rail trolleys and railcars for inspection and maintenance continued ...

  8. Shopping cart - Wikipedia

    en.wikipedia.org/wiki/Shopping_cart

    A shopping cart held by a woman, containing bags and food. A shopping cart (American English), trolley (British English, Australian English), or buggy (Southern American English, Appalachian English), also known by a variety of other names, is a wheeled cart supplied by a shop or store, especially supermarkets, for use by customers inside the premises for transport of merchandise as they move ...

  9. Road–rail vehicle - Wikipedia

    en.wikipedia.org/wiki/Road–rail_vehicle

    Road–rail excavator British jeep in France, 1945. A road–rail vehicle or a rail–road vehicle is a dual-mode vehicle which can operate both on rail tracks and roads. [1] [2] They are also known as two-way vehicles (German: Zweiwegefahrzeug), [3] hi-rail (from highway and railway, or variations such as high-rail, HiRail, Hy-rail [failed verification]), [4] and rail and road vehicles.