Quadtech, Inc.

W. H. Brady Co.

Quad/graphics, Inc.

Karl P Schaefer

Ingermar S d'Agrella

John M Neary

Eric L Kuhne

Richard J Fox

Nick R Schetter

Gary J Laatsch

Gerald T Downing

A signature slow-down section in a folder of a printing press for slowing down signatures is provided. The folder is driven by a folder drive mechanism and the signature slow-down section includes a frame, a slow-down mechanism supported by the frame, and a motor connected to the slow-down mechanism for rotatably driving the slow-down mechanism separately from the folder drive mechanism. The motor is selectively operable to drive the slow-down mechanism at a speed in response to the position of the signatures relative to the slow-down mechanism.

Apparatus for slowing down and guiding a signature and method for doing the same

Provided is a sheet diverter for directing signatures moving in serial fashion along a diverter path to one of a plurality of collation paths. The sheet diverter includes a pair of diverter rolls for directing a signature to one of the plurality of collation paths and a diverter wedge for deflecting the signature to a selected one thereof. The diverter wedge is positioned between the diverter rolls so as to reach high into the diverter path thereby providing increased support to the signature as it travels from between the diverter rolls to the diverter wedge. The diverter rolls are permitted to intermesh with the diverter wedge so as to allow the diverter wedge to be so positioned.

Sheet diverter for collating signatures and a method thereof

An improved delivery section of a folder of a printing press in which the bucket assemblies and side guides are adjustable to accommodate varying widths of signatures.

Delivery apparatus for a printing press

A delivery apparatus for sorting a single stream of signatures into two or more streams, the apparatus includes two counter-rotating bucket assemblies. Each bucket assembly includes a plurality of buckets spaced from one another along a common axis. The respective common axis of each bucket assembly is disposed parallel to the common axis of the other. Each of the buckets of one of the bucket assemblies is disposed adjacent to and in a respective common plane with a respective one of the buckets of the other of the bucket assemblies. Further, each of the buckets includes a plurality of blades, the tips of the blades of each bucket defining a circumference. A respective circumference of one bucket overlaps the circumference of the other bucket disposed in the common plane. Two neighboring blades have respective surfaces defining a slot therebetween. Each slot includes a first generally wedge-shaped portion defined by a first planar surface and a second planar surface disposed at a first angle from the first planar surface, and a second generally wedge-shaped portion defined by a third planar surface and a fourth planar surface disposed at a second angle from the third planar surface. The second angle is smaller than the first angle.

Signature delivery apparatus including two rotating buckets

A diverter wedge for a pinless folder is adapted for cooperative association with a diverter guide mechanism operating to direct the lateral disposition of the leading edge of a signature relative to the wedge to one of a plurality of collation paths. The diverter wedge includes an elongated bar having a longitudinal axis and a generally triangular cross section transverse to said longitudinal axis. The bar is fixed in position and also includes a base, a vertex edge opposite the base, and planar diversion surfaces diverging from the vertex edge, an air inlet port connectable to a source of pressurized air, and a plurality of air discharge ports connected to the air inlet port and intersecting one of the planar diversion surfaces. At least one air discharge port intersects the vertex edge.

Sheet diverter wedge including air discharge ports

A delivery apparatus for sorting a single stream of signatures into two or more streams, the apparatus includes two counter-rotating bucket assemblies. Each bucket assembly includes a plurality of buckets spaced from one another along a common axis. The respective common axis of each bucket assembly is disposed parallel to the common axis of the other. Each of the buckets of one of the bucket assemblies is disposed adjacent to and in a respective common plane with a respective one of the buckets of the other of the bucket assemblies. Further, each of the buckets includes a plurality of blades, the tips of the blades of each bucket defining an outer circle. A respective outer circle of one bucket overlaps the outer circle of the opposing bucket disposed in the common plane. Two neighboring blades have respective surfaces defining a slot therebetween. Each slot includes a first generally wedge-shaped portion defined by a first planar surface and a second planar surface disposed at a first angle from the first planar surface, and a second generally wedge-shaped portion defined by a third planar surface and a fourth planar surface disposed at a second angle from the third planar surface. The second angle is smaller than the first angle.

Provided is a sheet diverter for directing signatures moving in serial fashion along a path to one of a plurality of collation paths. The sheet diverter includes a non-uniform angular velocity drive mechanism, the function of which is to improve the collation process such that the quality of signatures is improved as the signatures move along one of the plurality of collation paths and to increase the speed of the folder.

Sheet diverter with non-uniform drive for signature collation and method thereof

An adjustable signature stripping mechanism for stripping signatures from a rotating bucket assembly in a folder of a printing press. The mechanism includes a stripper shaft having a mounting portion and a pivot axis and a plurality of strippers mounted on the stripper shaft for stripping signatures from the bucket assembly and wherein the strippers are non-rotatable relative to the stripper shaft and slidable positionable along the stripper shaft.

Signature stripping mechanism

A carrier (10) for holding a plurality of pages (2) including a support member (13) and at least one ring (12) extending therefrom that includes a lower retention finger (20) of substantially uniform thickness and a flexible upper finger (21) of decreasing thickness. The fingers (20, 21) have free ends (22, 24) adjacent to each other and a flexible tang (25) at the free end of the flexible upper finger is positioned along one or more rigid tangs (26) at the free end of the lower retention finger.

Growing community of inventors

Brookfield, WI, United States of America

Karl P Schaefer