| 摘要 |
The specification describes an apparatus for grinding the bottoms of glasses, more particularly stemmed glasses. The apparatus comprises a grinding wheel, glass holding means capable of being moved in relation to the grinding wheel so as to increase and decrease the distance between them, the glass holding means being capable of being turned about an axis aligned with the direction of relative movement, a yoke, a holding element capable of being moved in the above-mentioned direction in relation to the yoke, the holding element serving for moving the glass in the above-mentioned rotational axis against the yoke leaving the underneath of the glass free.
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