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US 5,628,102 AGranted
Device for removing railroad rail retainer clips
OwnerWade T. Johnsoninventor
Life of this patent
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Abstract
A hydraulically powered apparatus for removing railroad track retainer clips from retainer chairs. A support housing carries a pair of compression arms which, when hydraulically actuated, force a pair of retractor blocks together. The retractor blocks in turn carry clip compression flanges which compresses the clip so as to unlock it from the chair and clip engagement pins which withdraw the clip from the chair which the retractor block is pivoted rearward by a hydraulic actuator.
Claims6
A device for removing a railroad rail retainer clip from a rail retainer chair, comprising:
- a base housing enclosing a compression arm passageway having first and second compression rollers and a compression arm guide extending therethrough;
- first and second compression arms, each having an upper end and a lower end, said compression arms pivotally secured together at their upper ends, said first compression arm extending downwardly through said compression arm passageway between said first compression roller and said compression arm guide, and said second compression arm extending downwardly through said compression arm passageway between said second compression roller and said compression arm guide;
- first and second pivot blocks pivotally and slidably affixed to said lower end of said first and second compression arms, each of said pivot blocks including a clip retraction pin extending therefrom for engagement with the rail retainer clip, and further including a compression plate for compression of the rail retainer clip;
- and
- hydraulic actuation means secured to said upper ends of said compression arms.
2 more elements
Dependencies are inferred from the claim text.