Abstract: In a method for controlling a distributor roller of a printing press, the phase position of at least one reversal point of the distributor roller is changed automatically during the ongoing printing. A change is made to the phase position for every specified number of revolutions of a plate cylinder.

Abstract: An apparatus for supporting the shaft journals of a printing cylinder, that can be dipped into a dye vat, of a rotary roller printing machine, preferably a Rotogravure Rotary Roller Printing Machine, on support rolls for the purpose of exchanging the printing cylinder. In order to be able to exchange the printing cylinder in a simple and fast manner, the support rolls are arranged on horizontally movable beams via which the support rolls can be shifted between the bearings of the printing cylinder and an extended position in which there is provided a device that lifts and inserts the printing cylinder.

Abstract: An ink transport roller (1) which may be used universally for panorama printing and printing of multiple colors next to one another. The roller has a recess (2) in an area between the colors which may be optionally opened or closed depending upon whether the roller is to be used for printing multiple colors next to one another or panorama printing, respectively.

Abstract: The application of active noise control to influence the fan-noise components in engine ducts. The fan is used as a source of counter noise by introducing flow distortions upstream or downstream of the fan. Microphone arrays sense the noise and produce a control output signal for controlling a distortion producer. The control output signal for the distortion producer comes from a control algorithm utilizing the output of the microphone signals sampled at a defined rate based on the fan blade passing frequency.

Abstract: The present invention provides apparatus for making printed foods such as cookies, crackers, and snacks at high production speeds on a continuous basis. The apparatus includes a rotary printer which is synchronized with dough forming apparatus such as a rotary cutter or rotary molder.

Abstract: A cartridge housing is provided for a transfer roll and an abutting ink roll. The housing inner wall is spaced closely around the transfer roll with a discontinuity in an exterior side wall that is only sufficiently wide to permit less than 90 degrees of the transfer roll outer circumference to be exposed at any one time. The exposed portion of the transfer roll abuts a print surface on a print drum. A like discontinuity in the inner housing wall around the transfer roll at a point distal from the exterior wall discontinuity permits contact with an eccentrically mounted rotatable ink roll which supplies a continuous amount of ink to the transfer roll as the transfer roll turns.

Abstract: A roller for distributing a coating material such as ink in a press is mounted on a shaft for sliding axially on and rotating on the shaft. First and second internally threaded sleeves are fixed internally of the roller coaxially with each other and concentric to the shaft. One of the threads has a left hand twist and the other has a right hand twist. Two follower plungers, one having left hand thread segments and the other having right hand thread segments are meshed alternately with the left and right hand twist square threads. A link spans between double armed levers which connect to the follower plungers, respectively. When one plunger is automatically forced out of engagement with its cooperating thread in the one sleeve, a force is transmitted through the link to the other lever which causes the other follower plunger and its thread segments to mesh with the internal threads on the other sleeve so the roller changes the direction of its axial movement.

Abstract: A rotary safety contact featuring dual brush contacts, contained within an isolating housing, shielded from the environment, purged with compressed air to prevent the entry of potentially explosive vapors, and adapted to be connected to a conductive cylinder/roller for electrostatic assist rotogravure printing is disclosed and described.

Abstract: An inking device for a printing apparatus, comprising a form roller disposed in the printing apparatus main unit parallel to a printing shaft and rotatably contacting with the outer peripheral surface of a printing member mounted on the printing shaft, and an ink feed unit detachably mounted on the printing apparatus main unit and having a distributor roller rotatably contacting the outer peripheral surface of the form roller to supply the form roller with ink when the ink feed unit is mounted on the printing apparatus main unit, which can always provide an adequate nip pressure irrespective of movement of the printing shaft or mounting/removal of the ink feed unit.

Abstract: There is disclosed printing apparatus composed essentially of molded plastics material which has relatively few parts, is easy to manufacture and maintain, and is lightweight and portable. The apparatus is illustrated as being of the table top type which can print both standard type tags and labels, string tags and pin tickets. The apparatus has a print head operable in conjunction with an impression control device, a feed finger assembly with a registration adjustment, a simple drive arrangement operated by a cam with a single cam path, and a reel positionable at different attitudes, and the construction of the apparatus is readily adaptable to both manually operated and motorized versions.

Abstract: There is disclosed printing apparatus composed essentially of molded plastics material which has relatively few parts, is easy to manufacture and maintain, and is lightweight and portable. The apparatus is illustrated as being of the table top type which can print both standard type tags and labels, string tags and pin tickets. The apparatus has a print head operable in conjunction with an impression control device, a feed finger assembly with a registration adjustment, a simple drive arrangement operated by a cam with a single cam path, and a reel positionable at different attitudes, and the construction of the apparatus is readily adaptable to both manually operated and motorized versions.

Abstract: Flexographic printing press for printing on the corrugated board sheets passing between the printing cylinder provided with a form plate on its peripheral surface and the receiving roll. Flexographic ink stored between a doctor roll and an anilox roll, which are rotated in the opposite directions as these rolls contact each other, is supplied to said form plate via said anilox roll to thereby carry out a printing operation. Said anilox roll is driven by said printing cylinder at same peripheral speed. Said doctor roll is driven by a speed change drive mechanism for reducing the peripheral speed of said doctor roll when the rotational speed of said anilox roll is increased, and increasing the peripheral speed of said doctor roll when the rotational speed of said anilox roll is decreased.

Abstract: A control system for optimizing the starting angle of a vibrating roller for production of an evenly distributed film of ink on the printing plate of a printing press, particularly an offset press, in which a reciprocating drive connection is provided between the press drive and the vibrating roller for reciprocation of the latter. A chart is provided for each one of a complete set of reference distribution starting angles for the vibrating roller, each chart showing for each starting angle a corresponding ink density distribution curve which, when matched to the observed ink density distribution in a printed product, provides direct reading of optimum starting angle. A variable phase changer is interposed in the drive connection leading to the vibrating roller for directly setting the starting angle to optimum value.