| | Orifice for coupling an electron beam gun to print form cylinders - Patent 4317982 (Site not responding. Last check: 2007-11-07) |
 | | The gun is fundamentally drawn against the cylinder with the full suction force of the vacuum which, at least with sliding washers of great large opening cross sections, surely leads to difficulties at the slide point due to the high specific contact pressure. |
 | | An elastically designed conduit is connected to this opening in the interior of the electron beam gun which is conveyed, vacuum-tight, through the wall of the electron beam gun and which leads to a vacuum pump. |
 | | The opening 15 for the electron beam is covered in the shaded area 16 by already-engraved cups having motif-dependent volume, where A represents the peripheral motion of the print cylinder and V respresents the advance direction of the electron beam gun. |
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