US Patent: 3,694,971
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| Guard System for High Speed Grinder
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Patentees:
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| Howard W. Renner (exact or similar names) - Cincinnati, Hamilton County, OH |
| John A. Moores (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 31, 1970 |
| Granted: |
Oct. 03, 1972 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Cincinnati Milacron, Inc.
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Description: |
| Abstract:
A first shield is disposed above a workpiece and adjacent thereto to protect the operator of a grinding machine during a grinding operation from any fragments of an exploding grinding wheel. During loading and unloading of the workpieces, the first shield is pivoted away from the grinding position of the workpiece, and a second shield is disposed between the workpiece and the grinding wheel to protect the operator during loading and unloading operations. The first shield has a coolant supplied thereto for cooling the grinding wheel; this coolant serves as an energy absorber if any fragment of an exploding grinding wheel strikes the first shield.
Claim:
In a grinding machine having: a base; a wheel slide supported on said base for translational movement relative to a workpiece to be ground, said slide having a grinding wheel and a guard substantially enclosing said grinding wheel supported thereby; means on said base to support the workpiece to be ground; means cooperating with said grinding wheel and disposed above the workpiece in a grinding position during grinding of the workpiece by said grinding wheel to prevent any fragments of said grinding wheel in the event of a failure of said grinding wheel from escaping from between the top of the workpiece and said guard; and means to move said cooperating means from the grinding position to a workpiece loading position toward said grinding wheel only when said grinding wheel is withdrawn from engagement with the workpiece by said slide for loading and unloading of workpieces. |
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