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7377471 |
Method and system for opening and securing a railroad frog
A method and system are provided for opening and securing a railroad frog. The system is provided with a body member and a plurality of attachment members, which are selectively securable with the...
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5782437 |
Spring rail frog having bendable rail with modified cross-section
A spring rail frog is disclosed that includes a movable wing rail, a fixed wing rail and a nose rail. The movable wing rail is provided with a bendable portion and a non-bendable portion. The...
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5595361 |
Wing rail hold-down
A railroad trackwork spring frog installation having a conventional wing rail with attached wing rail horn fitting is provided with an improved co-operating hold-down comprising a weld block...
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4917339 |
Reversing device for swivelable rails or movable frogs within the crossing area of a railway switch
In a reversing device for rails which are swivelable around a swivelling axis, or for movable frogs within the crossing area of a railway switch, the swivelable rails or, respectively, the movable...
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4637578 |
Railroad frog having movable wing rails
A railroad frog has either a cast or rail-built point, resting on a baseplate which is fastened to ties. A pair of heel rails are attached to the point, to the ties and to traffic rails. A pair of...
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4168817 |
Rail switch
A rail switch in which two wing rails are engageable with a frog in alternation, characterized in that guide members are provided, which are held in position relative to the wing rails and extend...
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3977635 |
Railway switch for Vignoles rails
Railway switch for Vignoles rails, comprising a frog tip and wing rails arranged for swivelling movement, each of the wing rails engaging the frog tip in a respective end position and being...
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