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Eugen Albert
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Publication of GB190105744ApublicationCriticalpatent/GB190105744A/en
5744. Albert, E. March 19. Embossing.-Printing-blocks for pictures are formed with the surface level of the metal in relief at various parts, to avoid the usual making- ready. A relief form is applied to the back of the block, and both are placed in a press with the face of the block resting on sheets of paper or on other soft material ; or a relief form is applied to the face, the back resting on soft material ; or both methods may be combined. In the case of zinc blocks, these operations are effected at about 100‹ C. With other substances, such as copper or brass, higher temperatures are necessary to give the requisite ductility.
GB190105744D1901-03-191901-03-19Improvements in the Manufacture of Printing Blocks
ExpiredGB190105744A
(en)
Improved Process or Means for Producing Designs, Devices, and the like upon Material for Reproduction in Castings, or by the Zinco, Electro Deposit, or other known Processes.