Abstract: In a web feed section comprising a bottom feed roll, a top feed roll, and actuator means for adjusting the contact pressure between said rolls, the improvement wherein the actuator means includes a compression spring operatively connected with the top roll through a lever to transmit its force to the top roll, a disk cam for adjusting the initial stress in the spring, and levers for uncoupling the spring from the top roll when a roll is to be replaced.

Abstract: In a web winding apparatus comprising a pair of spaced support rolls for a core tube to be placed thereon, means for driving at least one of said rolls, means for delivering a web to a core tube supported on said rolls, and means for cutting the web when it is desired to replace the core tube, the improvement wherein said cutting means comprises an elongated blade extending longitudinally of the rolls, and means for advancing and retracting said blade in the space between said rolls so as to contact and cut said web in advanced position and to withdraw said web into standby position between cuttings. The blade can be caused to move in a straight line or an arcuate path between active and inactive positions and guide means may be provided to prevent skewing.

Abstract: In a labelling machine including label pickup means, for delivering to the machine articles to be labelled and for removing from the machine labelled articles, at least two boxes for labels disposed alongside one another, one of said boxes being in active position, means permitting retracting and advancing in label stacking direction of that label box which is in active position, and guide means for the boxes to permit them to move transversely to the direction in which labels are stacked in the boxes so as to take said one box out of active position and to put another box in active position, the improvement wherein said guide means comprises a common support for said boxes, and means mounting said support for rotation about an axis so that said support can be rotated to place any of said boxes or none of said boxes into active labelling position. The support preferably comprises a circular disk rotatable about its center, the label boxes being arranged radially thereon.

Abstract: In an apparatus for coating a traveling web and comprising coating means for the web, a doctor roll which bears on the coated side of the web, a doctor-roll bed supporting the doctor roll and secured to the machine frame through a mount, and means for adjusting the location of the doctor roll and thus for adjusting the coating thickness, the improvement wherein the doctor-roll bed is made of an elastomeric material, and the adjusting means includes an inflatable tube between the doctor-roll bed and its mount constructed as a pressure chamber in the doctor-roll bed.

Abstract: An unwinding apparatus for rolls of materials pivotably mounts the rolls with a pivot drive at each end of the roll. The torque of each pivot drive is equalized relative to the machine frame in each direction of rotation by providing for each pivot drive, a resiliently mounted lever which is fixed to the pivot drive and a contact member which is linked to the lever. Four switches are arranged in pairs symmetrically with respect to the contact member and are actuated thereby in response to movement of the lever resulting from torquing by the pivot drives.

Abstract: A braking device for winding cores for webs of material to be unwound with varying web tension. The device includes a pressure medium actuated cylinder piston unit controlling brake shoes which act on the winding core trunnions. The cylinder-piston unit comprises at least two longitudinally aligned pistons having their axes coincident in the operating direction and abutting on each other in their rest positions. The pressure medium is applied to the pistons individually or in tandem to produce different braking forces.

Abstract: A device for chucking tubular winding cores, and particularly cores carrying paper webs or webs of similar material, wherein chucking segments forming a cylindrical surfaces are radially positioned by means of a core trunnion having an equilateral polygonal cross section, each of the chucking segments bearing on an individual surface of the trunnion through a support member having a rounded profile and producing a line contact. The support members are carried without play or with very little play in a cage inserted coaxially to be freely rotatable between the chucking segments and the core trunnion.

Abstract: In a labeling machine having a labeling station including a support means for revolving the support about its axis successively past a gluing roller, a label pickup station and a label gripping cylinder, at least one gluing segment on the support axis, the gluing segment having a cylindrically curved pickup surface with a radius smaller than the distance between the support axis and the gripping cylinder, the gripper cylinder and each gluing segment being coupled to one another through a nonuniformity gearing such that they have the same sense of rotation and each gluing segment performing a rotatory movement in the opposite direction which is accelerated or retarded such that its pickup surface rolls against the glue roller, the labels and the gripper cylinder, the labeling station being designed for optional operation with one or more gluing segments and the nonuniformity gearing being replaceable such that the transmission ratio of the gearing from the support to the gripper cylinder is reciprocal to the n

Abstract: A rotary disc cutter blade assembly comprises a cutter blade and the rotatable support on which the blade is mounted and which supports the blade within a radial support area. The rotatable supporting includes a resiliently deformable disc which airially supports the blade with initial tension outside the support area to effect noise reduction during use of the blade.

Abstract: In a labeling machine having a rotatable carrier and at least one pickup element rotatably mounted on the carrier, the drive for each pickup element comprising a four-way toggle mechanism including a crank, a connecting rod, a swinging link, with the connecting rod being joined to the crank and swinging link at two respective joints. Two cam followers are connected to the connecting rod by lever arms and are disposed outside the joints of the swinging link and the connecting rod on the one hand and the connecting rod and crank on the other hand. The four-way toggle mechanism and lever arms fixed to the connecting rod of the followers are adjusted to one another such that during a revolution of the carrier, the field swept by the swinging link does not encompass the axis of rotation of the carrier.

Abstract: A bottle labeling method and machine has a bottle conveyor which transports bottles past two labeling stations and which rotationally controls the bottles to place them into different positions appropriate to the affixing and pressing on of labels. In the first labeling station in the direction of bottle travel, the simultaneous transfer of a bottle-neck foil and of a back label is effected and in the second labeling station the simultaneous transfer of one of at least one partial neck label and a neck ring label and of a belly label is effected.

Abstract: A method for the automatic sidewise pushing of a plurality of cores of any desired length into the wedge formed by the supporting rolls of an arborless winding machine, comprising measuring the length of the first core to be inserted, retracting a retractable pusher into a position just back of the rear end of the first core which has been measured and is ready to be transferred, moving the core to a feed track, advancing the pusher to push the core into the wedge, and repeating the process until all cores have been inserted. An apparatus is provided to carry out the method automatically.

Abstract: The labelling machine has a rotatable carrier on which a plurality of label selector components are mounted. Each selector component has an outwardly curved surface and is oscillated via a drive to roll on an adhesive-application roll, to move across a label stack to pick up a label and to roll across a surface of a cylinder at a label transfer station. Various drives can be used to program the movements of the selector components relative to the rotation of the carrier.

Abstract: An irregular-motion mechanism comprising two series-connected double cranks each comprising a driving link and a driven link connected thereto by a connecting rod, the driving link of the first double crank and the driven link of the second double crank being mounted for rotation about a common axis, the driven link of the first double crank being rigidly joined to the driving link of the second double crank, the driven link of the first double crank forming an obtuse angle with the driving link of the second double crank the ratio of their lengths being about 2:3 with a length-ratio range of about 3:2 to 5:4 for the driving link of the first double crank and the driven link of the second double crank, and with a length ratio of about 1:1 for the connecting rods of the first and second double cranks. The device provides a considerable increase in power in the extreme positions of irregularity because of the obtuse angle.

Abstract: A method and an apparatus for the elimination of foam above the level of the liquid in a container. The foam is collapsed by the application of high frequency wave radiation thereto.

Abstract: A machine for the crosscutting of a multi-ply web includes a crosscutter, a guide preceding the crosscutter in the direction of web travel and a feed section disposed between the web guide and the crosscutter preceding the web to the crosscutter which includes a pair of rolls. Differences in sheet lengths of the various plies cut by the crosscutter is compensated by mounting the web guide for pivotable movement as a unit about the axis of one of the two rolls of the feed section and for fixing the web guide in a selected position in the path of motion thereof.

Abstract: An apparatus for the treatment of a web of material having rolls defining a conveying path of the web includes a mechanism for leading the head end of a web along the conveying path. The mechanism comprises two endless chains on both sides of the conveying path, each having a run thereof extending along the conveying path and a crossbeam connected across the two endless chains for securing the head end of the web during the leading thereof along the conveying path.

Abstract: A glue roller assembly for use in a labeling machine includes a drive shaft mounted rotatably in the machine frame and coupled with the machine drive by a transmission. A glue roller barrel is adjustable relative to the glue segments of the labeling machine and is mounted to permit radial adjustment thereof via a hollow shaft disposed substantially concentrically around the drive shaft of the glue roller and fixed to the machine frame. The barrel is coupled to the hollow shaft to permit the radial adjustment of the glue roller barrel with respect thereto and the glue roller barrel is coupled to the drive shaft in the circumferential direction.

Abstract: In an apparatus for scanning the markings on foils on the necks of the bottles in a bottle labeling machine having a photoelectric scanner including a light source and a lens for illuminating the foil on the bottle neck, a one-way mirror in the path of the light, a photosensitive receiver and a first amplifier connected thereto, the improvement wherein the photosensitive receiver comprises a pair of photoelectric elements respectively provided on the upper and lower edges of the lens, and an integrating amplifier operatively connected to each output of the pair of photoelectric receivers. The photoelectric elements are preferably photocells located either within or outside the lens in a line parallel to the bottle axis and diametrically to the lens. A selector switch may be provided to switch from the integrated output-scanning to auto-collimation.

Abstract: A system for setting the sheet length on a cross-cutter for webs of material includes a computer which delivers to the positioning element of a speed changing mechanism, the positioning signal for one speed corresponding to the desired sheet length and to a controlled group for the positioning element of an irregular motion mechanism and to a control loop for the positioning element of a continuously variable speed transmission. The desired values correspond to the desired sheet length and the control loop for the continuously variable speed mechanism receives as a actual value, the sheet length and specifies to the positioning element, the positioning time on the basis of the deviation of the actual value from the desired value and of the speed selected. Another comparison of actual value with desired value is made only at the completion of each positioning operation.