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  2. Hercules (roller coaster) - Wikipedia

    en.wikipedia.org/wiki/Hercules_(roller_coaster)

    Eventually, the banking angle of the turn was lessened to keep the guide wheels pressed against the outside rail, but the turn remained problematic, requiring frequent retracking and reinforcement. The trailered trains were eventually replaced with articulating trains, and by the coaster's fifth year of operation, a trim brake was added to the ...

  3. Roller coaster train - Wikipedia

    en.wikipedia.org/wiki/Roller_coaster_train

    Roller coaster wheels. Roller coaster trains have wheels that run on the sides (side friction or guide wheels) and underneath the track (upstop, underfriction, or underlocking wheels) as well as on top of it (road or running wheels); these lock the train to the tracks and prevent it from jumping the track. The side wheels can be mounted on the ...

  4. Continuous track - Wikipedia

    en.wikipedia.org/wiki/Continuous_track

    Continuous track or tracked treads are a system of vehicle propulsion used in tracked vehicles, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tyres on an equivalent vehicle, enabling continuous tracked ...

  5. Idler-wheel - Wikipedia

    en.wikipedia.org/wiki/Idler-wheel

    In very rare cases, the vehicle lacks an idler wheel at all; in Northern regions, one way people got better traction in deep snow was to take a simple three-axle truck, and install a simple continuous track around the rear wheels, thus forming a basic half-track system which featured two drive wheels, and no idler or road wheels. One almost ...

  6. Roller coaster wheel assembly - Wikipedia

    en.wikipedia.org/wiki/Roller_coaster_wheel_assembly

    The up-stop system was developed in 1919 by John A. Miller. He patented a design to make Pleasure-Railway attractions safer. He patented a design to make Pleasure-Railway attractions safer. His design consisted of wheels underneath the rails, keeping the train on the track rather than relying on gravity, which allowed more aggressive inclines ...

  7. Tow hitch - Wikipedia

    en.wikipedia.org/wiki/Tow_hitch

    A tow hitch (or tow bar or trailer hitch in North America [1]) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear. It can take the form of a tow ball to allow swiveling and articulation of a trailer , or a tow pin, or a tow hook with a trailer loop, often used for large or agricultural vehicles ...

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