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AssigneeDr. Ing. Rudolf Hell GmbH
InventorsRolf Angelbeck, Reinhard Gesell, Hans Penza
Estimating the term…
Pressure-tight vacuum chamber of an electron beam engraving machine for the acceptance of printing cylinders to be engraved, comprising a lower part similar to a machine bed, comprising a pressure-tight vacuum hood put in place on said lower part which is fashioned as a barrel-like arch and which is put in place on a sealing lip surrounding said lower part at its upper edge, comprising a loading opening for the printing cylinders situated in the upper central region of said hood and extending in longitudinal direction of said hood, comprising a cover lowerable into the loading opening and sealing with the loading opening, and comprising lifting and coveying devices situated at the face ends and at the loading opening with which the cover can be lifted out of its closed position and can be moved at the outer circumference of the hood in circumferential direction while releasing the opening in open position and can be moved back from the open position over the opening and be lowered into the closed position.
Pressure-tight vacuum chamber of an electron beam engraving machine for the acceptance of printing cylinders to be engraved, characterized by a lower part similar to a machine bed, by a vacuum hood placed pressure-tight on said lower part, said vacuum hood being fashioned as a barrel-like arch and being placed on a sealing lip surrounding said lower part at its edge, by a loading opening for said printing cylinders which is situated in the upper central region of said hood and extends in longitudinal direction of said hood, by a cover lowerable into said loading opening and sealable to said loading opening, and by lifting and conveying means situated at the face ends of said cover and of said loading opening, said cover being liftable out of its closed position therewith and being displaceable at the outer circumference of said hood in circumferential direction while releasing said opening in its open position and being returnable therewith from said open position over said opening and being lowerable into its closed position.
A pressure-tight vacuum chamber for an electron beam engraving machine, said chamber accepting a printing cylinder to be engraved and comprising a lower part similar to a machine bed, a vacuum hood having a cylindrical cross-configuration with a longitudinally extending opening provided with sealing lips for surrounding the lower part to form a pressure-tight seal therewith, said hood having a loading opening for the printing cylinders being situated in an upper central region of the hood and extending in a longitudinal direction of the hood, a cover for sealingly closing the loading opening and first means situated at the opposite ends of the loading opening for lifting the cover out of its closed position and conveying the cover around the outer circumference of the hood in a circumferential direction to an opened position clear of the opening so that a printing cylinder can be removed from the chamber and a new cylinder placed therein.
Dependencies are inferred from the claim text.