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  2. Rail fastening system - Wikipedia

    en.wikipedia.org/wiki/Rail_fastening_system

    A tie plate, baseplate or sole plate is a steel plate for centering and reinforcing the attachment point on the rail tracks between a flanged T rail and a railroad tie. The tie plate increases bearing area and holds the rail to correct gauge. It is fastened to wooden ties by means of spikes or bolts through holes in the plate.

  3. Hunting oscillation - Wikipedia

    en.wikipedia.org/wiki/Hunting_oscillation

    where d is the track gauge, r the wheel radius when running straight and k is the tread taper (which is the slope of tread in the horizontal direction perpendicular to the track). The path of the wheel set relative to the straight track is defined by a function y(x), where x is the progress along the track.

  4. Garage door opener - Wikipedia

    en.wikipedia.org/wiki/Garage_door_opener

    The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.

  5. List of Wheeler Dealers episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Wheeler_Dealers...

    Work Completed: Replaced gear knob, passenger door and door mirrors, pulled and filled dent in rear nearside quarter panel, repainted wheels and replaced the centre caps, applied new door sill decals, replaced handbrake lever, replaced handbrake warning light, adjusted rear exhaust section to prevent it from knocking against the undercarriage, fitted a new stereo, engine service including ...

  6. Track gauge conversion - Wikipedia

    en.wikipedia.org/wiki/Track_gauge_conversion

    Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a wider gauge to a narrower gauge or vice versa, on how the rail vehicles can be modified to accommodate a track gauge conversion, and on whether the gauge conversion is manual or automated.

  7. Hangar - Wikipedia

    en.wikipedia.org/wiki/Hangar

    A cutaway diagram of a hangar A Royal Air Force station hangar. A hangar is a building or structure designed to hold aircraft or spacecraft.Hangars are built of metal, wood, or concrete.