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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. Spike puller - Wikipedia

    en.wikipedia.org/wiki/Spike_puller

    A spike puller can be seen on the right side of this image. A spike puller is a railroad maintenance of way machine designed to remove rail spikes from ties. [1] The spike puller automates the task of spike removal, allowing it to be done at a rate greater than can be achieved by hand.

  4. Tie crane - Wikipedia

    en.wikipedia.org/wiki/Tie_crane

    Tie cranes are self-propelled and powered by a diesel engine, and usually weigh under ten tons and have a top speed of 20 to 25 mph. [2] The crane is normally capable of lifting at least 800 pounds, making it able to lift any type of size of tie. Some tie cranes are also equipped with clamps which grab onto the rails to stabilize the machine ...

  5. Tie rod - Wikipedia

    en.wikipedia.org/wiki/Tie_rod

    A tie rod or tie bar (also known as a hanger rod if vertical) is a slender structural unit used as a tie and (in most applications) capable of carrying tensile loads only. It is any rod or bar-shaped structural member designed to prevent the separation of two parts, as in a vehicle. Tie rods and anchor plates in the ruins of Coventry Cathedral

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  7. Tie exchanger - Wikipedia

    en.wikipedia.org/wiki/Tie_exchanger

    A tie exchanger (also known as a TKO for Tie Knock Out, or by various combinations of tie exchanger, extractor, replacer, or inserter) is a self-propelled railroad maintenance of way vehicle that removes old railroad ties (also known as sleepers) from tracks and inserts new ones. By using mechanical and hydraulic force, a tie extractor/inserter ...