Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for preparing book covers










Image Number 7 for United States Patent #5364215.

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.








 
 
  Recently Added Patents
System and method for providing advertising content using a group training system
Capacity and coverage self-optimization method and device in a mobile network
Implant free extremely thin semiconductor devices
Antimicrobial polysiloxane materials containing metal species
Eyeglass component
Compositions substantially free of sodium chloride and methods for the storage of red blood cells
Image forming apparatus
  Randomly Featured Patents
Oligomer extended polyarylethers
Bowl for spa foot bath
Portable barcode scanner
Inertial arming device for a fuse
Evaluating disease progression using magnetic resonance imaging
Method and apparatus for supply of liquid raw material gas
Method of constructing testing procedures for analog circuits by using fault classification tables
Bobbin evacuation on a movable conveyor belt
Silver base electrical contact material
Crop hold down arrangement for pick-up