Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Patent
1991-02-12
1992-11-10
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
374 55, 374142, 33 1Q, 33790, 73146, 73786, G01K 1300, G01M 500, G01B 530
Patent
active
051618915
ABSTRACT:
In order to determine a rail's neutral temperature, the length of an unconstrained piece of steel (or "gage") is compared with a similar length of railroad track rail which is constrained and thereby deflected at most temperatures because of the track structure's tie-in to the earth's surface. The gage represents the length that the counterpart piece of rail would be if it were not constrained by the track's connection to the earth's surface. The difference in length is an analog of an associated rail characteristic, such as the number of degrees that the rail's instantaneous temperature (e.g., in degrees F) is above or below the rail's neutral temperature. Length comparisons are made with precision measuring devices configured to directly read out in conventional units the rail characteristic being considered, such as pounds of force or rail neutral temperature in degrees F.
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Bennett G. Bradley
Cuchlinski Jr. William A.
Hubbard Robert R.
Practical Transportation, Inc.
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