| 摘要 |
Apparatus for submerged grinding of ferrous and non-ferrous metals comprising a work tank adapted to contain a liquid, and means for supporting a workpiece in the work tank. The level of liquid in the tank can be raised to cover the work for grinding or lowered to expose the work for inspection. Changing the liquid level is accomplished by a ballast tank connected to the work tank, and a liquid displacement member in the ballast tank. Raising the displacement member lowers the liquid level in both tanks, and lowering it raises the liquid level in both tanks.
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