Abstract: A suction braking apparatus for the braking and overlapping of sheets coming from a duplex crosscutter is provided which has a single suction chamber and can be quickly changed over to accommodate sheets of a different width. The suction chamber is provided with two groups of suction holes arranged in a row in the direction of travel of the sheets and has cover plates perforated in register therewith and each has a perforated control belt. Each group of suction holes has associated therewith a cover slide which is movable at a right angle to the direction of sheet travel with the two cover slides reciprocally covering a group of suction holes, starting from one of the two side edges and up to a junction extending in the direction of sheet travel.

Abstract: An air nozzle for a jet drier has a nozzle slot extending transverse to a moving material web during use and has an elongated nozzle lip which together with the material web forms the boundary of a channel for drying air. The elongated nozzle lip has a planar portion and at least one stabilizing zone for the drying air which extends over the entire width of the nozzle and which interrupts the planarity of the planar portion of the nozzle lip. Each stabilizing zone includes equalizing openings, so spaced from the nozzle slot that stabilization of the flow is assured with widely varying drying air velocities.

Abstract: In a stack changing apparatus for sheet ejecting machines having a drop table vertically movable within a first frame structure, the drop table having a pallet to be placed thereon for receiving stacks; and a second vertical frame structure provided behind the first vertical frame structure having a carriage which is movable vertically and parallel to the drop table and, provided with pallet transport elements, is also horizontally movable between the second and the first frame structure, the improvement wherein one of two stacking platforms is alternatively used as the drop table, the platforms being selectively movable to one of the two sides of the first vertical frame structure and their stacking surfaces being below the level of the floor, the apparatus being further provided with an auxiliary skid for each stacking platform, the height of the auxiliary skid being such that when on a stacking platform the top of the skid is substantially level with the floor, each auxiliary skid having take-up elements f

Abstract: A device for the pressing of gummed labels or foils against objects which are moved along a straight or curved path, comprises one or more pressing elements disposed one behind the other and movably advanced in synchronism with the objects along a path that is convexly curved with respect to the first path. Each pressing element has a pliable pressure pad disposed at the level of the area which is to be provided with the foil and situated at varying distances from the pressing element. The pressure pad comprises a plurality of elements disposed side by side, which independently of one another exert a point or line pressure during the pressing action.

Abstract: In the formation of containers wherein an endless sheet material is continuously fed, finished, cut into blanks of predetermined length, and the blanks are formed into containers, the improvement wherein the finishing includes the steps of shaving off a longitudinal strip from one face of the sheet material so as to reduce the thickness of the sheet material along said strip, and removing by suction the strip shaved away. An apparatus therefor comprises a roller for supporting said sheet material, and a rotary hollow knife aligned with one longitudinal edge of the sheet material adjacent the supporting roller, the axis of rotation of the hollow knife being substantially parallel to the longitudinal edge.

Abstract: A method and an apparatus for making a fillet seam closure on folding boxes fabricated from box-board internally lined with aluminum foil and coated with a thermal plastic resin includes folding the fillet seam along a fold line, holding the areas of the fillet seam to be welded together by applying compressive forces along a line parallel to the desired weld seam and slightly spaced therefrom between the weld seam and the fold line and ultrasonically welding the fillet seam with a simultaneous application of pressure in the weld seam which gradually decreases from the weld seam center line to the edge facing the fold line to effect the displacement of the thermal plastic resin from the center line towards the edge in the formation of a V-joint. The weld is allowed to cool off and the compressor forces are maintained during the welding and the cooling operations.

Abstract: A labeling machine has a revolving carrier on which at least one pickup element has a convexly curved receiving surface eccentrically journaled between the receiving surface and the center of curvature thereof. A drive is provided for each pickup element comprising a stationary cam and an arm which follows the cam and imparts to the pickup element an oscillating movement through a drive shaft. The stationary cam comprises a cylindrical cam truck and the drive shaft of each pickup element is coupled with the associated arm for movement by the stationary cam along the drive shaft through a cam consisting of two opposite parallel cam sections. The cam sections extend at an angle to a plane perpendicular to the shaft axis and cam followers are associated with these cam sections. The distance between the two cam sections is adjustable such that any free play present between them and the cam followers can be eliminated.

Abstract: An unwinding stand for a plurality of rolls of material has an elevating mechanism for raising the individual rolls of material to the level of bearing brackets mounted on stand columns and disposed on either side of the unwinding stand. The elevating mechanism includes a guide column disposed between the stand columns and an elevating platform with dual outriggers guided on the guide column for the loading of the bearing brackets disposed on both sides of the stand with rolls of material.

Abstract: A broad drawing apparatus for moving webs of material comprises a roll having a plurality of individual roll sections mounted on shaft sections and a two part thrust bearing for determining the degree of curvature for the two adjacent shaft sections of every two adjacent roll sections. A ball and socket bearing for each shaft section is provided such that the ball and socket bearings of adjacent shaft sections are disposed side by side on opposite sides of the thrust bearing and wherein each thrust bearing part carries one of the adjacent ball and socket bearings.

Abstract: An apparatus for the longitudinal cutting of webs of material into individual strips has a plurality of cutter pairs consisting of a lower cutter and an upper cutter and disposed side by side. The spreading of the material on its width and the spreading apart of the strips of material after cutting is brought about solely by the mounting of the cutter pairs in an arc along the direction perpendicular to the direction of travel of the web and by the tilting movement of the cutter pairs into the plane of movement of the web of material.

Abstract: An apparatus for the continuous simultaneous application of coatings of constant thickness to two sides of a material web, having two adjustable two-edged spreader blades confronting one another at an angle, between which the material web passes for the proportioning of the coatings, a chuck for each blade, and means clamping each spreader blade along one edge in the chuck, the other edge of each blade parallel to the clamping line being free and engaging under bias and a corresponding biasing force the material web carried over the free edge of the other spreader blade at an acute angle to the direction of movement of the material web, and means applying a biasing force to each blade along a fulcrum line the improvement wherein one spreader blade is rigid and the other spreader blade is resilient, the chuck of the resilient spreader blade being pivotable about the engagement line between the resilient spreader blade and the rigid spreader blade and about a line outside of the clamping line for movement away

Abstract: In an apparatus for the pulsewise dispensing of very small amounts of liquid controlled with a measuring instrument comprising an ejecting device for the pulsewise ejection of a desired amount of liquid, a pump is provided for supplying liquid to the vessel from a reservoir. The pump includes a neck portion having an inlet at the bottom thereof and a foot portion, with at least the foot portion immersed in a liquid contained in the reservoir. The foot portion has a volume at least as great as the refill volume of the measuring vessel and a feedline to the measuring vessel is disposed within the neck portion and terminates in proximity to the bottom of the foot portion. A check valve opens and closes the foot portion inlet by means of compressed gas which is controllable by sensing devices at the measuring vessel.

Abstract: In an apparatus for the pulse-wise dispensing of very small amounts of liquid controlled with a measuring instrument. The measuring instrument comprises an ejector for the pulse-wise ejection of a desired amount of liquid and a measuring vessel having a volume greater than the volume of the liquid to be ejected for each pulse. The measuring vessel has an outlet connected to the ejector and a cross-section of the vessel is adapted to the amounts of liquid to be controlled. A sensing apparatus has an upper and lower sensing device positioned at the vessel and responsive to the level of the liquid therein with an accuracy of about from 1 to 5 amounts of liquid to be ejected and which generates a signal when the upper and lower sensing devices are activated.

Abstract: In an apparatus for cutting, decelerating and overlapping sheets of paper, comprising means for feeding a paper web at predetermined speed, means for cutting said web into sheets, suction means for decelerating the sheets, means for adjusting the amount of suction in relation to the feeding speed, and means for stacking the decelerated sheets, the improvement wherein said suction means includes an ejector roller provided with recesses and located directly in front of the stacking means, at least one suction strip provided in a recess of the ejector roller and extending approximately to the apex of the ejector roller, and at least one nozzle provided in the area of the ejector roller directing air toward the stacker so as to form an air cushion between the sheet being stacked and the sheet which had just previously been stacked.

Abstract: A bottle carrier for a labeling machine has a plurality of bottle plates which are rotated about their own axes by a drive as the bottle carrier rotates. The drive is controlled by a control arm guided in a fixed cam. Each bottle plate has a drive shaft connected thereto and about which the bottom plate rocks. A socket in the bottle carrier is provided for each drive shaft and a friction wheel drive is disposed between each drive shaft and the corresponding socket. The friction wheel drive includes a cage to which the control arm directly transmits the rocking movements prescribed by the cam.

Abstract: A revolving cross cutter has two knife drums coupled together, wherein the upper knife drum is mounted for movement towards and away from the lower drum for setting a gap between the two. A sensor-controlled lift mechanism is responsive to forcible lifting of the upper knife drum to lift same away from the lower drum when a jam-up occurs.

Abstract: A slitter for web material comprises at least one pair of rotatable circular knives each comprising a lower cup knife and an upper disc knife which plunges into the web material during use. The upper disc knife is disposed with its axis perpendicular to the line of movement of the web of goods and the lower cup knife is disposed with its axis at a selected angle to the line of movement of the web of goods.

Abstract: A safety system for the drive of a cross cutter for a web of material, having an electrical or mechanical synchronizing system between the drives of the feed and cutting mechanism which is adjustable for the size of the piece to be cut and which consists of an adjustable asymmetrical mechanism and has speed control associated with the drive of the feed mechanism to limit the speed of the feed means on the basis of a signal corresponding to the setting of the asymmetrical mechanism. A function generator generates a signal to be applied to the speed control which is directly dependent thereon to define the speed value for the drive of the feed mechanism and wherein the function generator is responsive to the asymmetrical mechanism for size-related, maximum permissible web velocity.

Abstract: A knife drum for a cross cutting machine comprises a drum having an axial groove and a knife inserted in the groove with one side abutting one side of the groove. The space formed between the knife and the other side of the groove defines a downwardly tapering groove wherein a plurality of round chocks are mounted and which are selectively positioned in the radial direction. The chocks have an arcuate cross section with the largest diameter greater than the smallest width of the tapered groove, whereby in response to the radial positioning thereof, the knife is alternatively clamped between the chocks and one side of the groove or released.

Abstract: A cam-controlled equalizing transmission is provided in a labeling machine for bottles and the like having a revolving carrier on which at least one pickup element having an outwardly curved receiving surface for labels is rotatably and eccentrically mounted between the receiving surface and its center of curvature thereof, and having one drive for each pickup element including a stationary sun gear and a pinion which meshes with the sun gear and which is axially displaceable in relation to the sun gear. The cam-controlled equalizing transmission couples the drive spindle of the pickup element with the pinion and comprises a cam disposed between the pinion and the spindle and a cam follower, wherein the cam has a varying curvature.