Bookbinding: process and apparatus – Process – Of making a case
Patent
1989-08-31
1990-11-06
Watts, Douglas D.
Bookbinding: process and apparatus
Process
Of making a case
412 1, 412 8, 412902, 281 211, B42D 700
Patent
active
049682032
ABSTRACT:
The present invention is directed to a method and apparatus for making book bindings. In one of the preferred embodiments the method includes the steps of initially aligning a hot-melt adhesive strip on a base; aligning a sheet of material relative to the hot-melt adhesive strip; pressing a first time the sheet of material onto a strip of hot-melt adhesive for bonding the strip of hot-melt adhesive to the sheet of material without forming folding lines therein; pressing a second time the sheet of material against at least one associated bending edge adjacent at least one longitudinal side of the hot-melt adhesive strip thereby forming at least one fold line in the sheet of material, maintaining the sheet of material in the initially aligned position during the first and second pressing steps; and lifting the sheet of material following the first pressing step and prior to the second pressing step by moving the at least one associated bending edge to a position below an anticipated position of the at least one fold line thereby lifting the hot-melt adhesive off the base.
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Hamill Jr. Thomas
Watts Douglas D.
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