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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