Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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removable press

A type of press that is not designed to exert pressure but simply to hold pressure that is applied. In the days when standing presses were used in edition and library binding, many presses were required because books were generally kept under pressure for 24 hours. Use of the removable press reduced the number of (hydraulic) standing presses required because it divided the application and maintenance of pressure between two implements. The books were loaded on a separate base supported on casters instead of the base of the press. When the press was filled, a special board was placed on top of the last pressing board, and, after the pressure was applied, threaded steel rods connected the top board and the caster-mounted base. The pressure of the hydraulic press was then released and the entire load of books rolled out of the press. With this equipment it was necessary to have only one press for each casing-in machine; however, sufficient special bases, top boards and pressing boards for the day's work were required. See also:BUILDING-IN MACHINE . (339 )

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