| 摘要 |
A grinding mill for grinding grain and the like includes a pair of grinding discs, each having a cutting face arranged adjacent to the cutting face of the other disc. Each grinding disc has a plurality of cutting teeth circumferentially spaced on the cutting face to define channels between the teeth. The teeth and the channels of each disc extend inwardly from near the periphery of the disc at an angle to the disc radii so that when one disc is rotated with respect to the other, an outwardly-operating scissor action is effected between the teeth of the two discs. One of the discs is movable axially with respect to the other disc and apparatus is provided for preventing movement of the movable disc to a point where it would otherwise contact the other disc.
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