| 摘要 |
The invention relates to a device for treating books comprising a frame and two belt conveyors, whose proximal faces are located in parallel planes adjustable towards and away from one another, said faces being fixed in the transverse direction in the plane of each face. The device according to the invention comprises a roller conveyor comprising a large number of freely rotatable rollers (11), whose parallel rotary axes are at right angles to the planes of the proximal faces of the belt conveyors, the shafts being displaceable by spring load towards said faces. |
