Rail Cant Measurement Tool and Method
First Claim
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1. A rail cant measurement tool for measuring rail cant of a first rail having a base, a rail web and a rail head, the rail cant measurement tool comprising:
- a cant angle measurement assembly comprising a frame for disposing over the first rail, said frame having rail engaging means for engaging the first rail and a rail cant indicator; and
a track plane reference bar extending from the cant angle measurement assembly and for disposing on an uppermost surface of the first rail and an uppermost surface of a parallel second rail to determine a track reference plane,wherein the rail cant indicator shows rail cant information indicative of the angle between a running surface of the first rail and the track reference plane.
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Abstract
Rail cant measurement tools and associated methods enable users to measure rail cant. The measurement tools comprise a reference assembly, and a cant angle measurement assembly. The reference assembly comprises a track plane reference bar, a rail centerline reference head, and a measurement gauge for measuring rail cant.
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Citations
20 Claims
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1. A rail cant measurement tool for measuring rail cant of a first rail having a base, a rail web and a rail head, the rail cant measurement tool comprising:
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a cant angle measurement assembly comprising a frame for disposing over the first rail, said frame having rail engaging means for engaging the first rail and a rail cant indicator; and a track plane reference bar extending from the cant angle measurement assembly and for disposing on an uppermost surface of the first rail and an uppermost surface of a parallel second rail to determine a track reference plane, wherein the rail cant indicator shows rail cant information indicative of the angle between a running surface of the first rail and the track reference plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for measuring rail cant of a first rail having a base, a rail web and a rail head, the method comprising the steps of:
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providing a rail cant measurement tool, the rail cant measuring tool comprising a cant angle measurement assembly comprising a frame for disposing over the first rail, said frame having rail engagement means for engaging the first rail and a rail cant indicator and a track plane reference bar extending from the cant angle measurement assembly and for disposing on an uppermost surface of the first rail and an uppermost surface of a parallel second rail to determine a track reference plane, wherein the rail cant indicator indicating rail cant information indicative of the angle between a running surface of the first rail and track reference plane; placing the frame over the first rail; engaging the rail engagement means with the first rail and determining a planar running surface of the first rail; placing the track plane reference bar on an uppermost surface of the first rail and an uppermost surface of a parallel second rail and determining a track reference plane; indicating the rail cant on the rail cant indicator. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification