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
Spread spectrum communication system and transmission power control method therefor
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
System and method for judging success or failure of work of robot
Method for generating codewords
System and method for managing investment funds
Systems, devices, methods, and compositions including fluidized x-ray shielding compositions
Toy
  Randomly Featured Patents
Device for condensing steam under pressure and its application to the cooling of a nuclear reactor after an incident
Vanadium addition agent for iron-base alloys
Protective seal for use in cans or the like for packaging beverages or the like
Pharmaceutical compositions
Roller type electrostatic spinning apparatus
Controller for converting digital plane image data to virtual three-dimensional image data
Method for the preparation of high surface area high permeability carbons
Aluminum mail box address stand
Synchronization between pipelines in a data processing apparatus utilizing a synchronization queue
One-way clutch built-in type pulley apparatus for alternator and method for preventing squeal of endless belt for driving alternator