Patent ID: 8550760

Claim:
A device to shape a flat or straight spine of a book casing positioned horizontally spread out flat and oriented to be distributed evenly over a flat or straight spine of a book block, comprising: a first fold-shaping rail and a second fold-shaping rail, the first and second fold shaping rails arranged extending in a direction parallel to one another and each having a side edge to define an open space therebetween; and a movable, shaping tool arranged to face the inside of the book casing spine to shape a web on the book casing spine, wherein the shaping tool includes two spaced-apart support bars that extend parallel to the first and second fold shaping rails and into the space between the first and second fold shaping rails to cooperate with a relative movement of the fold-shaping rails to form the flat or straight book casing spine and which are arranged to be adjustable so that together the adjustable support bars adjust the web width of the book casing spine in a direction transverse to the direction of extension of the fold-shaping rails wherein the support bars raise the book casing into the space between the first and second fold shaping rails to form the flat or straight spine extending from the first fold shaping rail to the second fold shaping rail.