| 摘要 |
The vertex (XA) of interior angles (AI) is being bevelled with an in assigned rake and bevel angles positioned rotary tool (26), by moving said tool (26) parallel to the bisector (KB) of said angle, firstly on one side and then on the other side of the bisector, with the active part of the tool substantially tangential to the bisector. The apparatus comprises at least one rotary tool (such as a grinding wheel)(26), drive means (35) for rotating the tool, first means (29) for supporting the tool (26) and the drive means (35) in such a manner as to enable them to be moved angularly within a first vertical plane about a diameter (B) of the tool (26), second means (23) for supporting the first means (26) in such a manner as to enable them to be moved angularly within a second vertical plane perpendicular to the first, and means for supporting said second means (23) in such a manner as to enable them to be moved in three mutually perpendicular directions (X, Y, Z) and rotated about one of said directions (Z). The product is a sheet (L) of coloured or non-coloured plain glass, plate glass or flattened glass with at least one bevelled interior angle (AI). |
