Abstract: There is described a method of creating a transparent polymer window (W) with a field of lenses (L) in a security paper substrate (1), the method comprising the steps of (i) providing a security paper substrate (1), (ii) forming an opening (10) into the security paper substrate (1), (iii) laminating a transparent film (5; 5*) onto a first side (I) of the security paper substrate (1) in such a way as to close the opening (10) at one end, and (iv) filling the opening (10) with transparent polymer material (2). In one embodiment, the transparent film (5) comprises a field of lenses (L) and is laminated onto the first side (I) of the security paper substrate (1) in such a way as to form lenses (L) on the first side (I) of the security paper substrate (1) in register with the opening (10).

Abstract: A method for cleaning a rotating surface of a printing press cylinder or a rotating surface of a printing press roller, or a rotating surface of a print form or a transfer form arranged on a printing press cylinder within a printing unit includes the steps of: applying a liquid, water-based washing agent, containing at least 60% water and the rest at least surfactants, onto the surface to be cleaned within the printing unit; dissolving contaminations from the surface to be cleaned within the printing unit with the help of the washing agent and a cleaning device; and removing the dissolved contaminations from the surface to be cleaned within the printing unit, at least with the help of the cleaning device.

Abstract: Apparatus, printers, and methods to remove material from a printer surface are disclosed. An example apparatus includes a fluid remover to remove printing material from a printer surface, and a coating material reservoir to store coating material and to apply the coating material to the fluid remover to reduce an amount of printing material transferred to the fluid remover from the printer surface.

Abstract: There is described an intaglio printing press (1; 1*) comprising an intaglio cylinder (8) and an ink wiping system (10) with a rotating wiping roller assembly (11) contacting a circumference of the intaglio cylinder (8) for wiping excess ink from the surface of the intaglio cylinder (8), a rotational speed of the wiping cylinder being adjustable with respect to a rotational speed of the intaglio cylinder (8). The intaglio printing press (1; 1*) comprises an adjustable drive unit (25), which adjustable drive unit (25) is interposed between the wiping roller assembly (11) acting as a rotating output body of the adjustable drive unit (25) and a driving gear (100) coupled to the intaglio cylinder (8) and acting as a rotating input body of the adjustable drive unit (25). The adjustable drive unit (25) is designed to allow selected adjustment of a rotational speed of the wiping roller assembly (11) with respect to a rotational speed of the driving gear (100).

Abstract: A wiping device includes an intaglio cylinder, a cylinder cleaning device, and a wiping liquid supply device. The intaglio cylinder is rotatably supported. The cylinder cleaning device removes excess ink adhered to an outer surface of the intaglio cylinder. The wiping liquid supply device supplies a wiping liquid for cleaning to the cylinder cleaning device. The wiping liquid supply device includes a waste liquid tank, a new liquid tank, a first pump, and second pump. The waste liquid tank stores a waste wiping liquid discharged from the cylinder cleaning device. The new liquid tank stores a clean wiping liquid. The first pump supplies the clean wiping liquid from the new liquid tank to the cylinder cleaning device. The second pump supplies a supernatant liquid of the waste wiping liquid stored in the waste liquid tank and separated into a precipitate and the supernatant liquid to the cylinder cleaning device.

Abstract: A printing press includes an anilox printing unit having a screen roller and a feed blade as components, in which ink accumulates on an outer side of the feed blade during printing. A method for operating the anilox printing unit includes removing the accumulated ink from the feed blade by moving one of the two components relative to the other of the two components in a first direction in a first step, causing the accumulated ink to be flattened by the feed blade and to be spread onto the screen roller. The component that was moved in the first direction in the first step may be moved in an opposite, second direction in a second step, causing the accumulated ink to be scraped off the screen roller by the feed blade.

Abstract: There is described an ink wiping system (100) for an intaglio printing press comprising a rotatable wiping roller assembly (102) designed to wipe excess ink from the surface of a rotatable intaglio printing cylinder (80). The rotatable wiping roller assembly (102) comprises a rotatable hollow cylindrical body (110) having an outer surface (110a) positioned to wipe the surface of the printing cylinder (80), and a pressing device (130) disposed inside the cylindrical body (110) and designed lo exert pressure on an inner surface (110b) of the cylindrical body (110) and to allow adjustment of a wiping pressure between the cylindrical body and the intaglio printing cylinder (80).

Abstract: There is described an ink wiping system (100) for an intaglio printing press comprising a wiping tank (101) and a rotatable wiping roller assembly (102) positioned on and partly located in the wiping tank (101) to wipe excess ink from the surface of a rotatable intaglio printing cylinder (80) of the intaglio printing press. The ink wiping system (100) comprises a supporting mechanism (200) coupled to the wiping roller assembly (102) and designed to move the wiping roller assembly (102) between a working position where the wiping roller assembly (102) is positioned on and partly located in the wiping tank (101) for cooperation with the intaglio printing cylinder (80) and a maintenance position where the wiping roller assembly (102) is moved out of the wiping tank (101) and away from the intaglio printing cylinder (80).

Abstract: The system comprises a wiping tank (1), a wiping roller (2) rotatably supported in the wiping tank and having a circumferential surface and cleaning means for cleaning the surface of the wiping roller, said cleaning means comprising at least a first spray unit (4) for spraying clean wiping solution against the surface of the wiping roller and a drying blade (12) placed downstream of said first spray unit with respect to a direction of rotation of said wiping roller for removing wiping solution residues from the surface of the wiping roller. The cleaning means further comprise a cleaning assembly including at least one supporting plate (5; 25) with a series of holes (5?, 30, 31, 32, 33) and holding means (7, 8, 10, 11) for holding the supporting plate, said supporting plate being conformed to extend parallel to a part of the circumferential surface of the wiping roller without touching said wiping roller.

Abstract: A wiping device includes an intaglio cylinder, a cylinder cleaning device, and a wiping liquid supply device. The intaglio cylinder is rotatably supported. The cylinder cleaning device removes excess ink adhered to an outer surface of the intaglio cylinder. The wiping liquid supply device supplies a wiping liquid for cleaning to the cylinder cleaning device. The wiping liquid supply device includes a waste liquid tank, a new liquid tank, a first pump, and second pump. The waste liquid tank stores a waste wiping liquid discharged from the cylinder cleaning device. The new liquid tank stores a clean wiping liquid. The first pump supplies the clean wiping liquid from the new liquid tank to the cylinder cleaning device. The second pump supplies a supernatant liquid of the waste wiping liquid stored in the waste liquid tank and separated into a precipitate and the supernatant liquid to the cylinder cleaning device.

Abstract: A liquid application method includes: an application liquid supplying step of supplying an application liquid to an outer circumferential surface of a roller member which is driven to rotate; a blade abutting step of abutting a blade member against the outer circumferential surface of the roller member so as to remove the application liquid supplied in the application liquid supplying step; and a blade abutment and separation control step of controlling an operation of abutting and an operation of separating the blade member in the blade abutting step.

Abstract: A printing roller has an outer surface and is rotatable in a rotational sense about a roller axis. A liquid applicator has an upstream blade having an edge engageable with the roller surface and a downstream blade having an edge engageable with the roller surface downstream in the sense from the upstream-blade edge. The blades form a compartment fillable with a liquid to be applied to the roller outer surface. The upstream blade is shifted on rotation of the roller between an engaged position with the respective edge engaging the surface and a disengaged position with the respective edge spaced radially from the surface.

Abstract: According to a drive control method and apparatus, an offset printing section and an intaglio printing section are connected together by a gear train. Separately from an offset printing section prime motor for driving an entire sheet-fed printing press, an intaglio printing section auxiliary motor is provided in the intaglio printing section where load is heaviest and load variations are great. By so doing, the entire sheet-fed printing press is driven by the offset printing section prime motor and the intaglio printing section auxiliary motor. Moreover, the electric current value (driving torque value) of the intaglio printing section auxiliary motor is controlled in accordance with an electric current value (torque value) for driving the offset printing section prime motor, the torque distribution rate of the intaglio printing section auxiliary motor, and the rated electric current value of the intaglio printing section auxiliary motor.

Abstract: A method of depositing material upon a substrate features filling recesses of a substrate with liquid and removing material present on the substrate, outside of the recesses using fluid, i.e., apply a vacuum of a jet of fluid. To that end, one method of the present invention includes depositing a measure of liquid upon a surface of a substrate having a recess formed therein to ingress into a volume of the recess with a portion of the liquid. A quantity of the liquid is disposed upon regions of the surface proximate to the recess. Thereafter, the quantity of liquid is removed while maintaining the portion within the volume. In this manner, the portion may be transferred onto an additional substrate. More specifically, the portion may be placed in contact with a layer of flowable material and cross-linking therewith by exposing the liquid and the flowable material to actinic radiation.

Abstract: There is described process for producing security papers, in particular banknotes, comprising the step of sealing the surface of the security papers by applying a protective pattern on the surface of the security paper, which sealing comprising printing the security papers by intaglio printing using an intaglio printing plate with engraved areas such that at least 80% of the whole surface of each security paper is covered with embossed intaglio patterns produced by engraved areas of the intaglio printing plate which are inked or with a combination of embossed intaglio patterns and flat intaglio patterns, which flat intaglio patterns are produced by unengraved areas of the intaglio printing plate which are inked after wiping of the intaglio printing plate, at least a part of the embossed intaglio patterns and/or flat intaglio patterns being printed with a transparent or semi-transparent intaglio ink.

Abstract: The system comprises a wiping tank (1), a wiping roller (2) rotatably supported in the wiping tank and having a circumferential surface and cleaning means for cleaning the surface of the wiping roller, said cleaning means comprising at least a first spray unit (4) for spraying clean wiping solution against the surface of the wiping roller and a drying blade (12) placed downstream of said first spray unit with respect to a direction of rotation of said wiping roller for removing wiping solution residues from the surface of the wiping roller. The cleaning means further comprise a cleaning assembly including at least one supporting plate (5; 25) with a series of holes (5?, 30, 31, 32, 33) and holding means (7, 8, 10, 11) for holding the supporting plate, said supporting plate being conformed to extend parallel to a pant of the circumferential surface of the wiping roller without touching said wiping roller.

Abstract: An ink pattern printing apparatus comprises a lower frame comprising a printing plate having at least one recess, and an upper frame comprising an ink supply device supplying ink onto the printing plate, a removing blade removing residual ink on an upper surface of the printing plate by releasing a pressurized gas through an exhaust port in the removing blade, and a transfer roller having a transfer sheet, wherein the transfer sheet receives transfer of ink from the at least one recess.

Abstract: Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. This results in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such as one having a tantalum anode.

Abstract: A device for coating an element is described. The device is capable of bearing and using a swab impregnated with a coating composition and includes a mobile carriage for bearing the swab. The carriage is movable along a guiding path. The device further includes an element for pushing the swab towards the element to be coated so that a quantity of the composition released from the swab coats an element. The device also includes an element for distributing the composition, so that the coating is substantially uniform.

Abstract: Apparatus for the treatment of a wiping solution, which includes ink flocculation apparatus for flocculating ink contained in a used wiping solution by the addition of a flocculant to the used wiping solution; solid-liquid separation apparatus for separating, into sludge and a filtrate, the used wiping solution containing the ink which is flocculated by the ink flocculation apparatus through filtration of the used wiping solution; distilled water production apparatus for producing distilled water and a concentrated solution through heating of the filtrate which is separated by the solid-liquid separation apparatus; water recycling apparatus for recycling the distilled water which is produced by the distilled water production apparatus as a raw material of a wiping solution; and post treatment apparatus for separating the concentrated solution into steam and a solid residue through heating of the concentrated solution which is produced by the distilled water production apparatus.

Abstract: A printing bridge for silk-screen printing machines has at least one mobile transversal support beam and a doctor retaining and adjusting element slidably attached to the beam. In order to deliver fluid to the doctor retaining and adjusting element, the doctor retaining and attaching element includes a fluid driven actuator connected by tubes to a duct in a section bar on the transversal support beam.

Abstract: A method of preparing a bonded assembly of two substrates at least one of which is transparent or translucent to UV or visible light, comprises a) applying, to at least one of the substrates, a photo/anaerobic dual cure composition comprising: i) a (meth)acrylate-capped urethane oligomer, ii) at least one (meth)acrylate diluent monomer, iii) an anaerobic curing system, and iv) a free-radical photoinitiator; b) joining the two substrates c) irradiating the adhesive through said transparent or translucent substrates with light of a wavelength effective to activate the photoinitiator for a time sufficient to at least fixture the adhesive, and then d) allowing the assembly to further cure at ambient conditions without for at least 24 hrs without subjecting the fixtured assembly to substantial peel stresses.

Abstract: A printing press with a doctor blade device (24), which has a doctor blade (26), which can be placed against a cylinder (10), wherein the doctor blade (26) is caused to oscillate with a frequency of at least 1 Hz by an oscillator (38).

Abstract: The present invention includes bainitic steel doctor blades, bainitic steel coating blades, bainitic steel creping blades and bainitic steel rule die knives used in gravure printing, flexographic printing, paper making, die cutting of materials including paper, plastic, foam, leather, etc. Other uses include printing processes such as pad printing and electrostatic printing. The invention also includes an improved method for producing bainitic steel strip. The present invention is accomplished by using bainitic steel components that exhibit superior straightness and wear properties and are bendable around small radii.

Abstract: The invention concerns a pad-printing ink cup fitted with at least one magnet (10). The minimum of one magnet (10) may be positioned at different heights relative to the plane of the doctor edge (22), the magnetic force effective in the said plane depending on said heights.

Abstract: A device for metering and equalizing an ink layer on the surface of a printing machine roller, in particular on the surface of an ink applicator roller in the inking unit of a printing machine, the surface being additionally wetted with dampening medium. The device contains at least two doctor blades which are arranged preferably at a short distance one behind the other in the direction of rotation of the roller and rest under pressure against the surface of the roller and of which a front doctor blade, with respect to the direction of rotation of the roller, has a doctor blade edge radius such that essentially only the dampening medium, but not the ink layer, can be wiped off from the surface of the roller by said front doctor blade, while a rear doctor blade, with respect to the direction of rotation of the roller, has, by comparison, a smaller doctor blade edge radius such that at least part of the ink layer which has remained on the surface of the roller can be wiped off.

Abstract: A self-adjusting blade for engagement with a moving work surface, comprising a steel strip elongated in a first direction between first and second sides, said strip having an edge section along said first side for contact with said work surface, and said edge section being hardened to a hardness exceeding that of the remaining part of said strip.

Abstract: A wiping device of an intaglio printing press comprises a liquid tank storing a cleaning liquid inside, a wiping roll disposed in the liquid tank and contacting a plate of an intaglio cylinder for removing ink on a surface portion of the plate, a base plate disposed in the liquid tank, and a wiping roll cleaning sheet supported by the base plate and contacting a circumferential surface of the wiping roll for removing ink adhering to the circumferential surface of the wiping roll. The wiping roll cleaning sheet comprises a supporting wire net tautly supported on the base plate, a cleaning wire net supported by the supporting wire net so as to contact the circumferential surface of the wiping roll, and an elastic cloth supported by the supporting wire net so as to be interposed between the supporting wire net and the cleaning wire net, for pressing the cleaning wire net against the circumferential surface of the wiping roll. The wiping device requires less labor for maintenance and check.

Abstract: The device for coating an element with a swab impregnated with a coating composition includes a mobile carriage bearing the swab wherein the carriage is movable along a guiding path, a member for pushing the swab towards the element to be coated so that a quality of the composition released from the swab coats the element, and a member for varying the release of the composition so that the coating is substantially uniform.

Abstract: The doctor portion of the ink cup of a pad printing machine is formed of a polymeric composite which has high compressive strength and high resistance to chemicals, notably to printing inks. The polymeric doctoring portion is tapered and defines a narrow distal end surface which circumscribes the open end of the cup for doctoring engagement with an opposed plastic gravure surface. The doctoring portion may be a separate ring element suitably mounted at the open end of the cup body or it may be a unitary part of the cup.

Abstract: A doctor blade for use in screen printing includes a head, a base in the form of a lip and at least one elastically deformable member connecting the head and the base. The elastically deformable member is structurally discontinuous on at least one location in the longitudinal direction of the doctor blade extending along a plurality of spaced spring layers. The elastically deformable member is realized from a plurality of elastically deformable wires which are arranged in spirals or in undulations or from a cut-out sheet so as to form a double comb the stiffness of which is controlled by the transverse dimension of the windings, undulations, or cut-outs, or the characteristics of the constituent material, and the spacing between the teeth of the comb.

Abstract: An inking-pad printing press has at least one container (1) for inking a printing plate and a press device for pressing the container against the printing plate. The printing plate (2) and the container are moved in a mutually reciprocating manner by a drive mechanism in order to ink a printing block of the printing plate. During the inking process, the position of the container relative to the longitudinal axis of the printing block and hence to the printed image is varied by a further relative movement. This further relative movement is, for example, an oscillating, rolling, swaying, swinging or thrusting movement.

Abstract: Squeegee assembly in particular intended for coating substantially cylindrical objects with a liquid or pasty material, at least comprising an annular squeegee with an outer mounting edge and an inner levelling edge, the latter comprising a ring member and/or ridges substantially extending in the intended direction of movement of the squeegee, the ridges defining grooves, which grooves are designed to form channels with the surface of the object to be coated.

Abstract: The present invention relates to a device for removing ink, water and contamination build-up on an ink roller in a printing press. The present invention also relates to a device for scavenging unused ink from an ink roller in a printing press, to allow the return the unused ink to the ink fountain. One embodiment of the invention includes a movable scraper blade having a gap corresponding to the lithographic or printing area of the ink roller. In this embodiment, the blade scrapes ink and/or water off of the ink roller only in the areas adjacent the lithographic or printing area. In another embodiment, a scraper blade is constructed of a series of blade segments, with each blade segment being independently actuatable through an actuator. This embodiment allows the scraping area or areas to be adjusted by simply controlling the appropriate actuators for the blade segments corresponding to the scraping area.

Abstract: Squeegee assembly, in particular intended for coating an substantially cylindrical object, such as metal, seamless screen printing cylinders, with a liquid or pasty material, at least comprising two substantially annular squeegees arranged at a distance from each other, between which squeegees material metering means open out for metering a material to be applied to the object to be coated; which squeegees can form part of a wall which is resilient, at least in places, of an annular squeegee pressure chamber, which is provided with pressure fluid supply means, while an annular material-supply chamber may be present in the squeegee pressure chamber which is provided with openings which open out between the squeegees, and also comprises a material supply which can be connected to a material source.

Abstract: A pad printing machine is disclosed in which the downward pressure forces are transferred to a thrust collar on the ink cup by application through a divided bearing which applies the hold-down forces at points that are spaced forward and rearward of the transverse pivot axis of the ink cup, and only at such spaced points, to resist rocking moments such as may arise from the reciprocating movements of the cliche. Further, the thrust collar is a combination of a very rigid pressure ring and a hard but slightly resilient plastic pressure distribution ring which is accurately machined after subassembly with the rigid ring to assure full mating engagement with the upper surface of the annular flange around the entire circumference of the ink cup, to assure uniform pressure of the entire knife edge on the cliche. In a preferred embodiment, the ink cup also is formed of a hard plastic.

Abstract: In an installation for cleaning the wiping cylinder (1) of an intaglio printing machine, including a plurality of cleaning elements in contact with the periphery of the wiping cylinder and constituted by brushes (4) and/or wiping blades (3) as well as at least one row of nozzles (7) ejecting a cleaning liquid, the first cleaning element (5) in contact with the surface of the cylinder is made of textile material, preferably made of porous synthetic fibers in the form of a web which is mounted, folded over on itself, on and along a rigid support (6), so as to extend beyond the latter.

Abstract: An inking device effective to provide a faultless ink-tight fit comprises a sheet-like support for a plate, and a cartridge, similar in shape to an overturned glass, which is adapted to contain an ink and has a lip in liquid-tight doctoring engagement with the plate, wherein the cartridge has a ring formed from a zirconia-containing ceramic material and provided with a sharp edge constituting the lip.

Abstract: A doctor blade bar for a short inking unit employs an eccentric disk to engage an abutment on a doctor blade holder to retract a doctor blade that is held by the holder and a cooperating doctor blade guide into a retracted position with respect to a screen roller, Disengagement of the eccentric disk from the abutment allows the doctor blade to be moved by a pressure spring into contact with the screen roller.

Abstract: An apparatus for placement of a doctor blade bar against an ink-dispensing roller utilizes spaced lifting or camming strips on doctor blade base support beams and cooperating counter strips or cam followers on doctor blade supporting base bodies to move the doctor blades toward or away from the screen roller. The slopes of the two inclined lifting strips on each support beam are preferably different from each other.

Abstract: The intaglio printing machine has three machine stands (I, II, III). Essentially, the impression cylinder (1) and the plate cylinder (2) are mounted in the first stand (I), the stencil rollers (10) and the inking unit (11) are mounted in the second stand (II), and the color-collect cylinder (8) is mounted in the third stand (III). The third stand (III) is adjustable in such a way that it can be removed from the space between the first and second stands and brought into an inoperative position, so that it is possible to bring the second stand (II) up against the first stand (I) to form an intaglio printing machine with direct inking. This results in a convertible intaglio printing machine by means of which a collect intaglio print can be made in a first operating position, in which all three stands assume their working position, and a direct intaglio print can be made in a second operating position, with the use of only the first and second stands.

Abstract: An inkcup and drive mechanism for a printing machine wherein the inkcup comprises a hollow body for containing a supply of ink and having an open end outlined by a wiping edge, a biasing spring for urging the wiping edge into contact with a surface of a printing plate, and a holder for supporting the biasing spring and engaging the printing plate so that the assembly of hollow body, biasing spring and holder is movable along the printing plate to place the open end of the hollow body into and out of registry with the image for inking the same and so that the biasing spring is entirely within the inkcup and applies force only to the hollow body and to the holder. The printing plate is removable from the machine so that the inkcup is easily manually removable from the machine in a sealed and contained condition.

Abstract: The present invention provides an improved cylinder cleaning mechanism for cleaning the circumference of a cylinder of a printing press. The cylinder cleaning mechanism comprises, as principal components, a cylinder cleaning unit having a pressure blade for pressing a cleaning cloth against the circumference of the cylinder, and a cylinder cleaning unit operating mechanism comprising a fluid-operated actuator for shifting the cylinder cleaning unit between a cleaning position where the cleaning cloth is pressed against the circumference of the cylinder with the pressure blade and a standby position where the cylinder cleaning unit is separated far away from the circumference of the cylinder, and a mechanism for transmitting the action of the fluid-operated actuator to the cylinder cleaning unit.

Abstract: The wiping device has a trough (4) and a wiping cylinder (2) which is mounted in the mutually opposite side walls (4a) of the trough (4). The trough (4) is itself mounted tiltably about a pivot axis (6) lying at least approximately in that plane (T') which passes through the axis of rotation of the wiping cylinder and which is parallel to the tangential plane (T) of the wiping cylinder (2) and plate cylinder (1) passing through the point of contact between the two cylinders. The pressing force with which the wiping cylinder (2) bears against the plate cylinder (1) can be set and requlated during the printing operation by means of an adjusting device (11, 12, 13) by correspondingly tilting the trough (4) together with the wiping cylinder (2) about its pivot axis (6). At the same time, the pressing forces are transmitted by adjusting rods (7) which are mounted on both sides of the wiping cylinder (2) and which act on the trough (4).

Abstract: A doctor blade head assembly, particularly for use in a flexographic printing press, has a head body pivoted to a support frame with an inflatable air tube disposed therebetween. The air tube extends along a channel having a bottom formed with spaced apart raised portions which cause the air tube to bulge out at these locations. In this way the air tube essentially only presses against the head body at these spaced apart locations, for example at the center and adjacent the ends, which reduces the tendency of the head body to bend along its length. This provides a more uniform ink film on the ink roll being inked by the doctor blade head assembly. End seal arrangements at the ends of the head body each include a resilient block seal and a resilient pad seal with which greased edge portions of the doctor blades slidably engage. The doctor blades overhang the ends of the ink roll, and an ink outlet passageway extends through each end seal arrangement independently of the seals.

Abstract: A pad-type printing machine comprises a holding device for a printing block, an ink feeding mechanism including a hollow body which in operation of the machine has its end face in contact with the printing block, and a pressure mechanism for pressing the end face of the hollow body against the printing block. A device is also provided for generating a relative movement between the printing block and the hollow body. A pad or tampon is pressed upon the inked printing block for picking up ink from recesses of the printing block and transferring it to an object to be printed. The periphery of the end face of the hollow body is provided with a hard material. The hollow body of the printing mechanism is, in the area of its end face constructed so that it can be bent in this area, and the area is connected to the remaining part of the hollow body by a connection which permits relative movements between the area of the end face and the remaining part of the hollow body.

Abstract: In a wiping apparatus for an intaglio printing press, a piston rod actuating end of a fluid pressure cylinder is pivotally coupled to each eccentric bearing for supporting the wiping roller, and the fluid pressure cylinder is supported by an adjusting mechanism for slightly moving in an extendable direction of the piston rod. A doctor blade holding member and a press-side support member are coupled by a plurality of fixing screws. The support member is reciprocally supported relative to the press side in an attachment/detachment direction of the doctor blade. The eccentric bearings and both ends of the support member are coupled by cam mechanisms for interlocking pivotal movement of the eccentric bearings with reciprocal movement of the support member. A doctor blade contact pressure fine-adjusting mechanism reciprocates the holding member with respect to the support member. Belleville springs are inserted between heads of fixing screws and the doctor blade holding member.

Abstract: A blanket cleaner for removing dust, lint or ink from a blanket cylinder in an offset printing press during the uninterrupted course of a press run. A first fluid cylinder periodically urges a brush against the blanket cylinder and retracts the brush from the blanket cylinder. Retraction of the brush permits the dust and lint swept before the brush to fall onto a door of a lint catcher. The door is raised and lowered by action of a second fluid cylinder. Operation of the second fluid cylinder lags the operation of the first fluid cylinder by an interval of time sufficient to permit the dust, lint or ink to fall onto the door. In the preferred embodiment, the structure includes a device for removal of debris from the lint catcher.

Abstract: A device for wiping ink from a cylindrical printing surface, said device being formed from a single piece of flexible material and folded to form a pair of spaced apart legs joined by a deformable folded portion, and a stiffener disposed between said legs for maintaining said legs in said spaced apart relationship, said folded portion adapted to press against and conform to a segment of said cylindrical printing surface so as to wipe ink from said printing surface as said folded portion moves over said printing surface.

Abstract: A clamping device for a pressure medium-loaded counter pressure member for applying pressure against a body to be cleaned, such as a cylinder in a washing device of a printing machine, includes a clamping bar connected to one end of a plate-like elastic member which is turned to enclose the counter pressure member, and a covering bar. The covering bar and the clamping bar are connected by bolts to sealingly clamp the counter pressure member with the elastic member.