Counter-strip for a perforating device
AssigneeKoenig & Bauer-Albert Aktiengesellschaft
InventorRudolf Phillip Ochsner
Life of this patent
Estimating the term…
Abstract
A counter-strip for a perforating device in a signature perforating assembly for a printing press is made of a resilient material and has a linearly extending bore. A support is placed in the bore and has a number of openings which will not interfere with the operation of perforating blades that are used to perforate signatures. The counter-strip is positioned in a counter-perforating cylinder and is supplied with compressed air that is used to remove paper dust from the bore.
Claims11
A counter-strip for use in a counter-perforating cylinder of a signature perforating device including a perforating cylinder having a perforating blade strip with individual perforating blade elements, the counter-perforating cylinder being supported for rotation about an axis of rotation, said counter-strip comprising:
- a resilient strip having a rectangular cross-sectional shape and having a work surface, said work surface extending along a periphery of the counter-perforating cylinder when said counter-strip is installed in the counter-perforating cylinder;
- a continuous bore in said resilient strip, said continuous bore extending in a linear direction in said resilient strip parallel to said work surface and parallel to the axis of rotation of the counter-perforating cylinder, said continuous bore having a diameter;
- a hollow support device disposed in said bore and adopted in size to said diameter of said bore;
- and
- a plurality of openings in said support device, said plurality of openings being located along said bore on a side of said bore closest to said work surface.
A counter-strip comprising:
- a resilient strip having a rectangular cross-section with a linear axis and an external work surface;
- a continuous bore in said resilient strip, said continuous bore extending parallel to said work surface in the direction of said linear axis;
- a hollow support device situated in said bore;
- and
- a plurality of openings in said support device, said plurality of openings being spaced along said support device on a portion of said support device closest to said work surface.
Dependencies are inferred from the claim text.