Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1989-01-31
1990-05-01
Olszewski, Robert P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51178, E01B 3117
Patent
active
049207016
ABSTRACT:
Reprofiling device of the head of at least one rail of a railway track, comprising a support carrying at least one grinding unit. The grinding unit is mounted on the support for pivotal movement about an axis parallel to the length of the rail. The unit comprises at least one motor driving at least one grinding wheel in rotation. The axis of pivoting of the grinding unit is movable both horizontally and vertically in a direction perpendicular to the length of the rail. The grinding wheel is displaceable axially relative to the grinding unit to apply the grinding wheel against the rail. The support comprises the framing of a railroad vehicle having at one of its ends at least two wheels resting each on one of the rails of the railroad track. A hinge supports the framing at its other end on a rigid frame provided with at least two wheels resting each on one rail of the railroad track. This hinge permits movement of the framing and the rigid frame relative to each other about an axis parallel to the length of the rail.
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Olszewski Robert P.
Speno International S.A.
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