Printing – Printing members – Blanks and processes
Patent
1977-02-22
1978-08-15
Coughenour, Clyde I.
Printing
Printing members
Blanks and processes
29132, 164 2, 164 95, B41C 118, B41C 302, B22D 1902
Patent
active
041064089
ABSTRACT:
Cylinders for lithographic printing machines having hard, non-porous surfaces are made without plating by forming a thin stainless steel sheet into a cylindrical shape and disposing it against the wall of a cylindrical mould. Cast iron is poured into the mould at temperatures substantially in excess of normal casting temperatures to bond with the stainless steel sheet. The surface is then ground and polished. Preferably the stainless steel is initially provided with a thin plating of copper on its inner surface to enhance the bond.
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Addressograph Multigraph Corporation
Coughenour Clyde I.
Goldstein S. L.
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