Bookbinding: process and apparatus – Process – Of making a case
Patent
1992-09-28
1994-11-15
Rosenbaum, Mark
Bookbinding: process and apparatus
Process
Of making a case
412 4, 412 5, 412 8, 412 11, 412 16, 412 17, 156269, 156522, B42C 700
Patent
active
053642155
ABSTRACT:
Apparatus and method are disclosed for preparing a preprinted book cover for application to a book block in a perfect binding system A double-walled tubular attachment strip is adhesively attached to the cover spine portion of successive covers in a continuous process. Covers are fed onto a conveyor at a constant speed with a spacing between covers and adhesives is applied to the spine areas. Simultaneously a continuous double-walled attachment strip with a longitudinal lap joint in one wall is formed without adhesive from a source of paper web stock and pressed, lap joint down, onto the cover spines to form a continuous string of covers. The attachment strip is cut by laser cutting beam between each cover while the covers are moving. The double-walled attachment strip is formed by pulling the web under constant tension through side scoring wheels, hold-down shoes, and forming devices which have surfaces to fold the edges of the moving web through 180.degree. toward each other to form a lap joint, Prior to forming the double-walled strip, job information is printed on the web stock at a location which appears as the inside surface of the wall of the strip opposite the longitudinal lap joint. Laser cutting is accomplished by moving a focused cutting beam in a plane normal to the plane of the strip transversely to the direction of movement of the strip.
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"Open Sesame"-American Printer, Sep., 1991 pp. 46, 48-49.
"Bound To Stay Open"-American Printer, Mar. 1991 pp. 53-56.
"For Short Runs", Otabind-RepKover.TM., Jun. 19, 1991.
Snellman Donald L.
Tonkin Dean G.
Hughes S. Thomas
Norfin, Inc.
Rosenbaum Mark
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