Abstract: An apparatus and method to provide confidentiality for the message content in copy received from an electrographic device is disclosed. Confidentiality is communicated to the apparatus by utilizing a confidentiality code mark on the first and last sheets of a set of copy for which privacy is desired. The confidentiality or non-confidentiality of the copy may also be communicated by using a last sheet of copy containing predetermined code marks. In one embodiment, the apparatus receives sheets of copy output from the elctrographic device and directs sheets of copy that are not confidential in nature into one output tray for removal. The apparatus directs sheets of copy that are confidential in nature into an assembly station for binding. After the last sheet of the confidential document is delivered to the assembly station, the bundle of copy sheets is advanced into a storage tray. The sides of the bundle of copy sheets are bound during its travel.

Abstract: A single facer machine for making a corrugated web is provided with a vacuum means for retaining a corrugated medium on one of the corrugating rolls. Said one corrugating roll has a core through which a heated fluid may flow. The core is surrounded by a sleeve which contains peripheral longitudinally extending flutes and valleys meshed with corresponding flutes and valleys on the other corrugating roll. A suction housing is juxtaposed to the outer periphery of said sleeve.

Abstract: The applicator roll of a single facer or a double facer glue machine has successive patterns with each pattern having different size cells from which a bonding agent may be transferred to the crests of corrugated paper. The applicator roll can be independently adjusted to change the phase of the cells relative to the crests of the corrugated paper to vary the amount of bonding agent transferred to the crests.

Abstract: An offset lithographic web printing press capable of printing a series of relatively short runs without interruption and with minimum waste of web material. The press includes a plurality of printing units. During a given run, some of the printing units are in a printing mode, while others are in a nonprinting or thrown-off mode. The web moves freely through the units which are thrown-off while those units are made ready for a succeeding run. Each unit includes a motor which has adequate capacity to drive such auxiliary equipment as a web infeed and folder, in addition to the unit, itself. Each unit motor may be clutched into a common drive line passing through all the units in order to drive the infeed and folder. Each printing unit also includes apparatus for throwing the printing cylinders of the unit to and from the web, and for changing the attitude of the web as it passes through the unit.