Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1987-08-21
1989-07-11
Olszewski, Robert P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51166T, 51166MH, 51 5B, B24B 2300, B24B 2708
Patent
active
RE0329797
ABSTRACT:
A rail grinding device comprising at least one reprofiling unit (80,81) driven along the track by a railroad vehicle (83); a jack (85) to displace in height the reprofiling unit with respect to the railroad vehicle (83) and to apply at least one tool of the reprofiling unit against the rail. The reprofiling unit (80,81) comprises at least one support (81) angularly displaceable with respect to the railroad vehicle (83) carrying several reprofiling tools (94,95) forming a group of tools. A positioning device (102), (104) and locking device (106,107) fixes the positions of the support (81) for which one (95) of the reprofiling tools (95,96) of the group of tools is located in working position.
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patent: 4309846 (1982-01-01), Theurer et al.
patent: 4365918 (1982-12-01), Theurer
patent: 4473971 (1984-10-01), Mischler et al.
Olszewski Robert P.
Speno International S.A.
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