| 摘要 |
Sheet material is unrolled until a straight cut leading edge is at a predetermined desired length as measured along a scale, and so that a single tacky surface is on a planar support, for the unrolled sheet to lay wrinkle-free and planar in contact with the planar support surface. A cutter is translated along a guide entirely across the fixed width of the sheet material, thereby producing a linear straight line cut edge parallel to the straight cut leading edge at a predetermined desired length, thereby providing an accurate, dimensionally stable, abrasion resistant, single tacky side rectangular, planar sheet, mask that is then adhered to glass during surface finishing of frame portions adjacent to the mask. The cutter is slidablly mounted on a transverse pivotable guide rail to move away from the planar support surface sufficiently to remove the cutter as an obstruction to unrolling. In its operable position, the cutter blade extends within a linear, widthwise, slot of the planar support surface. The sheet material is an abrasion and tear resistant, abradable, non-stretching and dimensionally stable, composite with a permanent tacky adhesive on only its inner surface sufficient to provide non slip weak adhesion to the glass and easy manual removal from the glass.
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