Rail knocker

Details Rail knocker Rail knocker

E - Fixed Constructions

01

B

104/1

E01B 31/02 (2006.01) E01B 29/22 (2006.01)

Patent

CA 1039111

ABSTRACT A self-propelled rail vibrating or knocking device is capable of walking along a railroad track in synchronism with machinery, such as, rail heating machinery utilized in the laying of welded rail to bring the rail to a mean temperature. The rail knocking device administers a series of rapid hammer-like blows to the rail as it walks along it, which blows tend to lift the rail up and thereby relieve the frictional force caused by the weight of the rail length in contact with the base plates. This momentary lifting of the rail relieves the internal stresses created in the rail by the heating operation and leaves the rail in good condition for a securing operation, such as spiking.

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