Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1981-09-18
1984-01-24
Smith, James G.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 89, 51215R, 51283E, 83281, B24B 910, B24B 1702
Patent
active
044268114
ABSTRACT:
A method of grinding glass sheets whose edges are polygons that are not symmetrical about a point is carried out in an apparatus having a supply station for supporting a stack of such sheets with all of the sheets in the stack in vertical registration, a grinding station adjacent the supply station having a grinding table rotatable about an upright grinding axis and adapted to support the sheets during grinding, a template secured to the grinding table, and a pair of grinders in the grinding station radially engageable with the edges of the sheet on its grinding table and radially displaceable by the template. The method of the invention comprises the steps of transporting the sheets one at a time from the stack in the supply station to the grinding station, simultaneously engaging the grinders with the sheet in the grinding station while rotating this grinding table with its template and the sheet on the table through 180.degree. to grind the edges of the sheet on the table, so that each such grinding operation displaces the template through 180.degree. about the axis. Finally every other sheet is rotated while being transported from the supply station to the grinding station through 180.degree. about an intermediate vertical axis.
REFERENCES:
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patent: 2782569 (1957-02-01), Robbins
patent: 2826872 (1958-03-01), Robbins
patent: 2941499 (1960-06-01), Gutzmer
patent: 3693321 (1972-09-01), Nilsson
patent: 3878650 (1975-04-01), Klotzbach
patent: 3939993 (1976-02-01), Lingl
Eckardt Rudolf
Neuendorf Hans-Cristoph
Dubno Herbert
Flachglass Aktiengesellschaft
Olszewski Robert P.
Ross Karl F.
Smith James G.
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