Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1989-11-27
1991-07-16
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
E01B 3117
Patent
active
050313657
ABSTRACT:
A method for grinding the running and/or guide surfaces of rails or the like, where the running surfaces are ground by an endless revolving abrasive belt which can be moved against the running surfaces, wherein the abrasive belt revolves transversely to the longitudinal axis of the rail and embraces, at least partially with prestress, the running and/or guide surfaces. An apparatus for performing the method includes a mobile grinding machine, which an endless abrasive belt, guided at least on one rail of the track, which abrasive belt revolves over a drive roller and a reversal arranged at a distance therefrom and which can be moved by these against the surfaces of the rail to be ground. The reversal is formed of two reversing rollers which have a comparatively small spacing from each other, that the axes of the reversing rollers and of the drive roller 19 being arranged to be parallel to the longitudinal axis of the rail. Thus, the abrasive belt revolves transversely to the longitudinal axis of the rail and at least one reversing roller can be lowered beneath the upper edge of the running surface of the rail for partially embracing the surfaces of the rail.
REFERENCES:
patent: 2560102 (1951-07-01), Guinn
patent: 2976652 (1961-03-01), Bedortha et al.
patent: 3049841 (1962-08-01), Guinn
patent: 3566549 (1971-03-01), Britton
patent: 4249346 (1981-02-01), Theurer
patent: 4768312 (1988-09-01), Williams
patent: 4896460 (1990-01-01), Theurer
Arndt Gerhard
Guntermann Hans
Elektro-Thermit GmbH
Parker Roscoe V.
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