Abstract: The invention relates to a method and apparatus the continuous production of package blanks. The package blank is intended for delivering books by mail and it is fabricated by drawing from a roll, a web of cardboard (1w), having a surface which is coated with adhesive zones (19) at distances corresponding to the length of a blank. A stud-chain conveyor (14) driven in synchronization with a cardboard-web (1w) chopping device supplies the adhesive zones (19) with paper strips (2p) forming an inner wrapper for the package.

Abstract: The invention relates to a packaging machine for wrapping books or the like for postal deliveries. The package blank includes a rectangularly shaped outer cardboard (2), which is folded by means of transverse belts (5) from a flat condition to a tube surrounding the four sides of a book. The belts (5) extend through sliding slots included in the bottom edge of guides (8) and said guides (8) are operated in vertical and horizontal plane by means of pneumatic cylinders (11, 14). The apparatus also requires two sets of individually operable press plates (6 and 7) for pressing the package from above before and after the folding of a sheet of cardboard (2).

Abstract: The invention relates to a packaging machine for wrapping books or the like for postal deliveries. The package blank includes a rectangularly shaped outer cardboard (2), which is folded by means of transverse belts (5) from a flat condition to a tube surrounding the four sides of a book. The belts (5) extend through sliding slots included in the bottom edge of guides (8) and said guides (8) are operated in vertical and horizontal plane by means of pneumatic cylinders (11, 14). The apparatus also requires two sets of individually operable press plates (6 and 7) for pressing the package from above before and after the folding of a sheet of cardboard (2). (FIG.