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US 5,303,514 AGranted
Rail grinding apparatus
AssigneesSumikin Osaka Plant Engineering Co., Ltd., Railway Technical Research Institute, Sumitomo Metal Technology Inc.
InventorsHirotsugu Oishibashi, Soji Fujimori, Muneyuki Ohara, Haruo Yokoyama, Akihiro Hosokawa, Kosuke Nagai, Hideshi Miyazaki
Life of this patent
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Abstract
A rail grinding apparatus for railroad rails has a grinding belt wrapped around motor-driven pulleys which are rotatably mounted on a frame. The frame is supported on the surface of a rail by rollers which bear the weight of the grinding apparatus. A noise guard surrounds the grinding belt to reduce noise.
Claims9
A rail grinding apparatus comprising:
- a frame;
- a rotary grinding device mounted on the frame for grinding rail surfaces in grinding planes corresponding to the top, gage corner, and upper lateral surfaces of the rail;
- first rollers rotatably mounted on the frame for rotation about first axes lying in a first plane parallel to the grinding plane to support the frame on a rail;
- second rollers rotatably mounted on the frame for rotation about second axes extending transversely with respect to the first axes, wherein the first and second axes are stationary relative to one another;
- means for adjusting the distance of the rotary grinding device from the first plane;
- and
- the first rollers and the second rollers are placed in such an arrangement that the frame can be tilted around the rail surfaces such that the grinding plane can be positioned to correspond to any one of the planes defined by the top, gage corner, and upper lateral surfaces of the rail in order to grind the top, gage corner, and upper lateral surfaces of the rail.
4 more elements
Dependencies are inferred from the claim text.