| 摘要 |
<p>An apparatus for breaking out a sheet of glass of predetermined configuration from a parent sheet one face of which is scored to define the configuration of the glass to be broken out comprises a plane support for a horizontal parent sheet, a clamp located laterally of but adjacent to the support, the clamp having co-operating jaws located with respect to the support to grip the contiguous marginal area outside the score line, means for causing the co-operating jaws to grip the marginal area when that area is presented on the support to the jaws and means for carrying the co-operating jaws which means are tiltable in a plane perpendicular to the glass support on an axis below the support and under the score line to impose an arcuate movement of the jaws in gripping relation to open the score line and free the supported sheet from the marginal glass outside the score line. The clamp consists of a fixed jaw 6 to which is pivoted the moveable jaw 5 actuated by a piston 12 in a cylinder 13 via pin 10 moving on slotted arms 8 pivoted at 7. These parts are supported by rollers 22 running along arcuate guides 21 on supports 20 and are rocked approximately about a point 20a beyond the glass sheet and opposite the scoreline 2 by the piston of a cylinder 23 which piston moves attached block 27 between limits 31 and 30 so swinging the rollers along the arcuate guides 31. The clamp 4 may have a slipper 38 movable between guides 39 and 40 so that it may be adjusted, and locked by screw 41, for different margins. In most cases the sheet will be clamped in three or more places and the clamps caused to follow their arcuate movements in very quick succession, so quick as to be almost simultaneous. <PICT:1119443/C1/1></p> |
