E - Fixed Constructions – 01 – B
Patent
E - Fixed Constructions
01
B
33/179, 51/38
E01B 31/17 (2006.01)
Patent
CA 1268340
ABSTRACT By means of several measuring sensors , the distances from several generatrices of the rail-head profile to a reference base are measured and are compared as actual values with pre- determined desired distance values. The grinding heads, which are set to a specific generatrix and which grind a facet at an angle of inclination corresponding to the position of each generatrix, are always lifted off auto- matically when this facet reaches the position corres- ponding to the desired distance value in relation to the reference base. Because the distance to a particular generatrix, on which is located the vertex line of two adjacent facets of a pair of facets, is measured as an actual value, any two adjacent facets can be checked simultaneously by means of one and the same measuring sensor . The two facets of a pair of facets are ground by means of a double grinding head set to the vertex line and having two grinding wheels, the grinding planes of which form a predetermined working angle (.alpha.) with one another which corresponds to the desired pro- file. The control of the grinding heads therefore mere- ly involves a simple comparison between desired values and actual values of distances; furthermore, double the number of facets can be checked by means of a specific number of measuring-sensors, and consequently the rail profile can be approximated as closely as possible.
527957
Buhler Fritz
Fils D'auguste Scheuchzer S.a. (les)
Marks & Clerk
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