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: A cross cutter for a web of goods comprises 2 coupled cutter rolls which are driven at the moment of cutting in synchronism with the webs of goods. The driving of the rolls is carried out by a driving motor, an adjustable asymmetrical coupler mechanism and a mechanism for controlling the number of revolutions per unit time of the driving motor. The cutter rolls are directly driven by the driving motor and parallel to the asymmetrical mechanism and the control mechanism is receptive of the actual number of revolutions as a control input from the asymmetrical mechanism.

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 labeling station has a rotating gripper cylinder having gripper elements equally spaced therearound to define label divisions and a carrier rotating in the same sense bearing pickup elements thereon mounted for either rotary or rocking movement in a contrary sense with respect to the carrier during the label transfer. The movement is controlled such that the receiving surfaces of the pickup elements roll at least in the forward area against the gripper cylinder surface when the gripper cylinder rotates. The arc length of the receiving surface of each pickup element is greater than the arc length of each label division of the gripper cylinder and the trailing portion of each label is lifted by at least one of the slip surfaces on the front edges of the pickup elements and blow nozzles associated with the gripper elements on the gripper cylinder.

Abstract: An apparatus for rotatably mounting a web on a spool including two chucks, each carried by a shaft which is rotatably mounted in a mounting frame, and each having a mandrel axially delimited by a stop flange and on which the spool is releasably clamped. Each chuck has a stripping ring disposed around the mandrel between the stop flange and a spool to be received, and configured to be axially slidable therealong, and wherein the ring comprises an axially extending collar. An actuating device is mounted on the mounting frame and is coactive with the stripping ring to effect the axial displacement thereof away from the stop flange so as to strip the spool from the mandrel.

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: In a labeling machine including means for supplying labels to a pickup element supplied with adhesive, which element transfers the labels to a gripping cylinder, the improvement wherein such pickup element has a smooth convex take-up surface composed of a plurality of first areas spaced form one another by second areas, the first areas exhibiting good adhesion properties and the second areas being relatively non-adherent, whereby when an adhesive is applied to said surface it lays substantially exclusively on the good adhering areas while leaving the non-adherent areas substantially free of adhesive, whereby less adhesive is required. The adherent areas may be metal and the non-adherent areas polytetrafluoroethylene provided in recesses in the metal, the non-adherent areas being in the form of circles or stripes.

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: An apparatus for unwinding rolls of sheet material and for adhering the end of one roll to the beginning of the next at full running speed, without interruption. Means are also provided to permit operation with rolls of different widths and even with two narrow rolls alongside one another. A support which can be operatively positioned between two such narrow rolls can be moved laterally out of the way to take up an end-supporting position when a single wide roll is being unwound.

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: An apparatus for winding material in web form into a roll lying upon two spaced apart driven support cylinders and having a cylindrical roll core. A stand-by roll core is supported between the roll and the supporting cylinders during the winding of the roll by a support member which defines a supporting surface thereon and which is mounted for movement from a non-supporting position to a supporting position wherein the supporting surface lies in a horizontal plane and extends into the area between the supporting cylinders and the roll to such an extent that only one supporting cylinder at a time can be contacted linearly by the stand-by roll core.

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.

Abstract: A synchronizing system for synchronizing the speeds of two webs of goods, wherein the first web runs at a constant speed and the second web has an adjustable running speed. First pulses are generated which have a frequency dependent upon the speed of the second web and a first counter is associated with the second web and is triggered by the first pulses. The first counter is also controlled to be started and stopped by at least one pair of timing marks which are running with the second web of goods. As a result of the frequency of the first pulses and the starting and stopping of the first counter, the first counter reaches a constant count upon stopping and each time the first counter is started for the next count this constant count is reached. Second pulses having a constant frequency associated with the speed of the first web are used to trigger a second counter which is started and stopped by the first counter when the constant count is reached.

Abstract: In an apparatus for separating the forward margin of a sheet which is joined along a parting line and is held at the forward margin by grippers of a transport means and having upper and lower separating tools disposed above and below the parting line and movable with respect to one another, the improvement comprising an anvil disposed at the underside of the sheet to be separated and which is mounted for movement with respect to the lower separating tool and for co-action with the upper separating tool to form a pair of gripper jaws for the sheet which is movable with the gripped sheet with respect to the lower separating tool during the separating action.

Abstract: A bottle labeling apparatus is provided in known manner with a turntable for picking up bottles at one location and delivering them elsewhere. The turntable has a plurality of rotary heads at its perimeter, the heads rotating regularly during a part of their cycle but being accelerated or retarded during the pickup and delivery operations by means of a cam and follower. Each rotary head carries a clamp comprising a pair of resiliently urged jaws for picking up and releasing a bottle when the axis of the bottle at the pickup and discharge stations, respectively, lies within the plane of symmetry of the clamp jaws.