Abstract: Locking mechanism for a lid of a rotor of a centrifuge, wherein the locking mechanism secures the lid on a rotor body in an axial direction, wherein the locking mechanism has at least one locking member slidable in a radial direction within a locking section of the lid, wherein the at least one locking member has a radially outward protruding locking portion in respect to the rotor body, wherein the locking portion is engageably connectable to a recess in the rotor body and rotor for a laboratory centrifuge with such a locking mechanism.

Abstract: In some examples, a device for ream-wise and/or pile-wise separating blanks from a pile and/or a ream of sheets includes at least one lower blank separating module and at least one upper blank separating module including an upper separating tool having multiple separating elements arranged in a separating element matrix. A separating element in an activated position has a first distance with respect to a carrier plate, and a separating element in a deactivated position has a second distance with respect to the carrier plate. The at least one upper blank separating module additionally includes at least one upper blank separating tool adapted as a function of the blank shape and/or the number of blanks on a sheet, such as for removing crosspieces when offcut pieces configured as crosspieces are present on a sheet, and/or for separating blanks arranged directly next to one another on a sheet.

Abstract: A method for the rotary blind embossing of a substrate, a device for the rotary blind embossing of a substrate, a female die and/or a male die for use in a device, and to a method for producing a female die and/or a male die. The method for the rotary blind embossing of a substrate in a work station including an embossing roller and a counter-pressure roller includes the following steps: a) preparing the substrate; b) blind embossing the substrate by means of at least one female die provided on the embossing roller and at least one male die provided on the counter-pressure roller. The device for the rotary blind embossing of a substrate has a work station having an embossing roller and a counter-pressure roller, at least one female die being provided on the embossing roller and at least one male die being provided on the counter-pressure roller.

Abstract: In some examples, a device for ream-wise and/or pile-wise separating blanks from a pile and/or a ream of sheets includes at least one lower blank separating module and at least one upper blank separating module including an upper separating tool having multiple separating elements arranged in a separating element matrix. A separating element in an activated position has a first distance with respect to a carrier plate, and a separating element in a deactivated position has a second distance with respect to the carrier plate. The at least one upper blank separating module additionally includes at least one upper blank separating tool adapted as a function of the blank shape and/or the number of blanks on a sheet, such as for removing crosspieces when offcut pieces configured as crosspieces are present on a sheet, and/or for separating blanks arranged directly next to one another on a sheet.

Abstract: The present invention relates to a set comprising an adhesive mat for the shaking platform of a laboratory shaker or shaking incubator, the adhesive mat having a platform side for application to the shaking platform and a support side opposite the platform side, both of which are designed to be adhesive, the set comprising a pressure aid which has a contact surface which is anti-adhesive with respect to the support side of the adhesive mat. The present invention also relates to a use of a pressure aid of this type for the attachment of an adhesive mat to a shaking platform of a laboratory shaker or shaking incubator and to a method for the attachment of an adhesive mat to a shaking platform of a laboratory shaker or shaking incubator.

Abstract: A method for the rotary blind embossing of a substrate, a device for the rotary blind embossing of a substrate, a female die and/or a male die for use in a device, and to a method for producing a female die and/or a male die. The method for the rotary blind embossing of a substrate in a work station including an embossing roller and a counter-pressure roller includes the following steps: a) preparing the substrate; b) blind embossing the substrate by means of at least one female die provided on the embossing roller and at least one male die provided on the counter-pressure roller. The device for the rotary blind embossing of a substrate has a work station having an embossing roller and a counter-pressure roller, at least one female die being provided on the embossing roller and at least one male die being provided on the counter-pressure roller.

Abstract: The present invention relates to a device for treating substrates which device is modular and versatile in use. The device for treating substrates comprises a feeder and one or more first sub-structure modules which each comprise a pressure cylinder with devices for fixing a lift and a sheet-conveying device and one or more second sub-structure modules which respectively have a transport cylinder with openings formed on the cover surface thereof, and having devices for fixing a lift and a sheet conveying device. All of the first or second sub-structure modules have the same intersection point for connecting the sub-structure modules on one of the inlet and the exit side and they all can be equipped with an attachment module.

Abstract: A device for processing substrates uses a separation system. Processed substrates can be separated into one or more waste parts and at least one blank. Improved flexibility for treating substrates is provided. The separation system comprises a transport cylinder and a stripping cylinder associated therewith. The transport cylinder has first openings and has a detachably secured packing having depressions in which perforations are formed, with at least one perforation covering at least one first opening. The stripping cylinder has a detachably secured packing having raised areas that correspond to the depressions.

Abstract: A device for treating substrates has a separation system, with which processed substrates can be separated into one or more waste parts and at least one blank. The device for treating substrates offers improved flexibility. The separation system comprises a transport cylinder and a stripping cylinder associated therewith. The transport cylinder is able to secure replaceable packing, along with first and second openings which, when the packing is secured, are covered at least partially by perforations that may be formed in the packing. A first air supply supplies air to the first openings and a second air supply supplies air to the second openings independently of the supply of the air to the first openings. The first and the second air supply are switchable between a suction air supply and a blower air supply.

Abstract: A device for processing substrates improves processing quality during separation or punching of such substrates. The device has a first processing cylinder and a second processing cylinder for treating substrates, and between which the substrate can be inserted. The substrate undergoes processing as it passes through the cylinder nip between the processing cylinders by use of tool parts that are active therein, and which may be chosen from a group composed of cutting tools, punching tools, creasing tools, perforating tools and grooving tools. The first processing cylinder has a sheet holding system and one of the first processing cylinder and the second processing cylinder has a tool carrier for receiving a tool part. An impression cylinder, which is in surface contact with the second processing cylinder, is assigned to the second processing cylinder, on the side thereof that faces away from the first processing cylinder.

Abstract: The present invention relates to a device for treating substrates which device is modular and versatile in use. The device for treating substrates comprises a feeder and one or more first sub-structure modules which each comprise a pressure cylinder with devices for fixing a lift and a sheet-conveying device and one or more second sub-structure modules which respectively have a transport cylinder with openings formed on the cover surface thereof, and having devices for fixing a lift and a sheet conveying device. All of the first or second sub-structure modules have the same intersection point for connecting the sub-structure modules on one of the inlet and the exit side and they all can be equipped with an attachment module.

Abstract: A device for processing substrates uses a separation system. Processed substrates can be separated into one or more waste parts and at least one blank. Improved flexibility for treating substrates is provided. The separation system comprises a transport cylinder and a stripping cylinder associated therewith. The transport cylinder has first openings and has a detachably secured packing having depressions in which perforations are formed, with at least one perforation covering at least one first opening. The stripping cylinder has a detachably secured packing having raised areas that correspond to the depressions.

Abstract: A device for treating substrates has a separation system, with which processed substrates can be separated into one or more waste parts and at least one blank. The device for treating substrates offers improved flexibility. The separation system comprises a transport cylinder and a stripping cylinder associated therewith. The transport cylinder is able to secure replaceable packing, along with first and second openings which, when the packing is secured, are covered at least partially by perforations that may be formed in the packing. A first air supply supplies air to the first openings and a second air supply supplies air to the second openings independently of the supply of the air to the first openings. The first and the second air supply are switchable between a suction air supply and a blower air supply.

Abstract: A main hydraulic circuit for controlling printing pressure of a printing machine is supplemented by an auxiliary high pressure generating circuit which becomes effective only after the pressure flow reversal in the main hydraulic circuit. The auxiliary circuit includes a pressure transformer or a hand-operated auxiliary pump connected via a back pressure valve to a hydraulic motor in the main circuit, and a second back pressure valve connected in series with a driving pump in the main circuit.

Abstract: A device for sealing surfaces defined between a collar of a motor shaft and a motor cover comprises a pre-stressed sealing ring mounted at the surfaces which extend at right angles relative to each other, a viscous elastic element for prestressing the sealing ring, and a guide ring positioned between the elastic element and the sealing ring. The sealing ring is positioned between the surfaces to be sealed and is pressed by the guide ring which is displaceable by a pressure medium.

Abstract: A hydraulic drive for a multi-color, sheet-fed rotary printing machine assembled of a plurality of consecutively arranged press units each having a set of sheet-processing cylinders and gear trains interconnecting the cylinders, is constituted by the following combination:a plurality of constant-flow, radial piston type hydraulic motors directly connected for driving a cylinder in each press unit;a first hydraulic control means including a main directional control valve and an auxiliary or switching directional control valve connected between the source of pressure fluid and the hydraulic motors; anda second hydraulic control means including a control cylinder-and-piston unit assigned to each operational radial piston of the motors and controlled by the latter so as to overlap in the cross-over position of the motors both the intake port and the discharge port for working fluid.

Abstract: Method and device for positioning application rollers and printing cylinders in the printing machine during the operation with reduced machine numbers of revolutions occuring during the slow-down operation, tipping operation or hand operation, in which a precise transmission of the torque to printing units and thus accurate development of predetermined angular rotation steps is possible due to the fact that a portion of the torque of the whole initial breakaway torque is applied directly to each individual printing unit and the remaining portion of the torque required for positioning of printing cylinders and application rollers is produced by an auxiliary drive.

Abstract: A printing machine which has a plurality of printing units each including several rollers is equipped with a gear train which drives at least one roller of each of the printing units. At least associated two of the gear wheels of the gear train are coaxially mounted on a common shaft, one of them being movable toward and out of contact with the other gear wheel for establishing entraining connection therewith and for permitting angular displacement of the associated gear wheels relative to one another, respectively. The angular position of the associates gear wheels is to be changed when the mode of operation of the printing machine is to be changed from first page printing mode to first and second page printing mode. The arrangement which connects and disconnects the associated wheels includes a plurality of moving units which simultaneously act on the other gear wheel and which are mounted on an annular clamping element mounted on the other side of the one gear wheel from the one gear wheel.

Abstract: A control system for a printing machine having a main shaft with a constant ratio of its rotary speed to a drive speed of the printing machine, has a plurality of translationally, continuously rotatably and discontinuously rotatably movable regulating members controllable by a main shaft of the machine, and a single supply system operating by hydraulic energy and associated with the regulating members, wherein the supply system includes a fixed-displacement pump, an oil supply conduit connecting the fixed-displacement pump with the regulating members, an electrically actuated flow regulating valve acting upon an oil stream, and a signal transmitter with a signal processor arranged so that the flow regulating valve connected with the main shaft via the signal processor.