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
Fuel cell module
High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same
Treatment of diabetes with milk protein hydrolysate
Triazolylphenyl sulfonamides as serine/threonine kinase inhibitors
Compounds, compositions and use
Rotation angle detecting device
Organic light-emitting display with black matrix
  Randomly Featured Patents
Cyclic .beta.-amino acid derivatives as inhibitors of matrix metalloproteases and TNF-.alpha.
Vehicle compartment latch
Sports racquet structure
Display panel and process for forming pattern therefor
Method and apparatus for enabling e-mail routing and filtering based on dynamic identities
Expanded polytetrafluoroethylene tubular container
Drying apparatus having a vertical rotary spiral blade
Mounting plate for passive infrared motion detector with light fixture
Division arithmatic unit of variable radix
Tub basket