Abstract: A method of printing a carpet with `flat bed` carpet printing apparatus is described incorporating a plurality of screens or other printing heads comprising moving the carpet in a number of steps beneath the screens or heads and preventing at least one of the screens or heads from printing at least once during each printing sequence or pattern repeat.

Abstract: A rotary screen process printing press has a plurality of printing stations, each having a pair of first and second transverse bars and a cylindrical stencil which is movably and adjustably supported between each pair of bars. The drive shafts for rotating the stencils are mounted in the first bars. The ends of each stencil are provided with bearing plates or head bearings. One end of each bearing plate is coupled to a first bar so as to pivot about the longitudinal axis of its drive shaft. The other end of each bearing plate has a mechanism to lift or lower the bearing plate to cause it to pivot about its shaft axis so that a stencil may be moved relative to the material being printed without moving its drive shaft. The lifting mechanisms and the pivotable coupling are adjustably attached to the bars to permit the position of the stencil to be varied.

Abstract: A printing machine with several groups of rotary-screen printing units, designed to print different color components of complementary portions of a recurrent pattern on an elongate web moving continuously beneath their screens, includes a programmer such as a perforated-type reader controlling the operation of the several printing units of each group in timed relationship dependent upon the web speed. A speed changer enables the peripheral velocity of the screens to be set at values different from the web speed, the timing of the printing operations being determined by two speed sensors upstream and downstream of the speed changer. These operations include a lowering of the rotating screen onto the web at the beginning of a printing cycle, a lifting of the screen off the web at the end of a working phase of that cycle, and a stoppage of screen rotation during part of the ensuing idling phase.

Abstract: A screenprinting machine has at least one printing station past which an object to be printed travels in a path, and which includes a movable printing screen and a cooperating movable squeegee. A fixed rack extends along this path, and an arrangement is provided which engages and rotates the object to be printed and which includes a gear which meshes with the rack. A drive is provided for moving the squeegee at a constant rate of speed, and another arrangement serves to vary the speed of movement and the stroke of the printing screen in dependence upon the peripheral speed of the rotating object.

Abstract: An endless printing screen of generally annular configuration is supported in end bearings. A tubular carrier extends through the space surrounded by the screen and defines with the screen an annular clearance which is subdivided into two or more axially successive chambers. An arrangement of tubes admits printing medium through the carrier into the chambers so that it can pass through the screen to print onto a web beneath the screen. Devices are provided for reciprocating the endless screen and the carrier.

Abstract: A screen printing machine has one or more printing stations. Each station has an endless printing screen of generally annular configuration and is supported in end bearings. A carrier extends through the space surrounded by the screen and defines a clearance with the screen. An arrangement of tubes admits printing medium through the carrier into this clearance. The clearance is subdivided into discrete chambers so that, when different-color printing media are admitted into the different chambers the printing station is capable of printing a multi-color pattern.

Abstract: A vertical rotary screen printing machine has a rotary printing cylinder in which is housed a combination dye dispensing bar and squeegee arrangement with which is associated a weir which controls dye flow.The arrangement is adjustable, preferably bodily, (a) radially to effect variation in contact pressure between the squeegee and printing cylinder; and (b) rotatably to effect variation in the position of the line of contact of the squeegee relative to the printing cylinder.

Abstract: A multicolor printing apparatus for automatically screen printing cut piece textile goods and finished garments in diverse colors having a plurality of printing machines, each printing machine operatively positioned at a station about a turntable which is rotated by an indexer to successively present each platen on the turntable at each station. After being indexed at a particular station the turntable is locked into a registered position for the duration of the printing cycle, after which the locking bar is disengaged allowing the indexer to rotate the turntable and the platens to the next station.

Abstract: A method for printing designs, patterns, characters, letters, and other desired images on an object having a convex or raised surface, wherein the images to be transferred onto the object is first carried on a flexible image carrier, then this flexible image carrying medium is disposed in a mutually opposed relationship with the object to be printed at a predetermined space interval provided therebetween, thereafter the flexible image carrying medium is caused to expand or bulge out toward the raised surface of the object to be printed by a fluid pressure to act on the flexible medium from one side thereof opposite to that where the image is carried, while controlling a degree of expansion of the flexible image carrying medium is controlled by a restrictive frame for the flexible image carrying medium to attain an intimate contact between the flexible image carrying medium and the object to be printed over the entire surface thereof.

Abstract: Axially adjacent first, second and third carriages are independently rotatable about a common vertical axis. The first carriage supports a plurality of platens which are spaced from the axis of rotation. The second and third carriages have a plurality of mechanisms which support a circumferentially disposed group of silk screen frames, respectively, for selectively pivoting between an inactive position wherein each screen is at an acute angle with respect to horizontal and an active horizontal position wherein the screen selected for printing is brought into contact with a platen on which there is material to be printed. The lowermost group of screen frames are arranged on the second carriage with at least one angular gap between them when they are in their angulated inactive positions.

Abstract: A device for adjusting the phase of a flat screen in an automatic flat screen printing machine, which comprises a supporting member for supporting a flat screen, a supporting and driving system for supporting said screen supporting member in such a state that the screen supporting member can be moved in the lengthwise direction of the machine, at least one adjustment screw mechanism for connecting said screen supporting member to said screen supporting and driving system, a phase adjustment driving mechanism for turning said screw mechanism to displace said screen supporting member in the lengthwise direction of the machine.

Abstract: Continuous, automatic printing of ordinary fabrics and cloths and screen printing of papers, films, metal foils and metal sheets is disclosed. Printing is accomplished by contacting a squeegee member, to which the printing paste or ink has been applied, with the material to be printed through a flat screen (stencil).The material to be printed is fed continuously at a constant speed in a supported state to a printing operation zone. The flat screen is reciprocated in the longitudinal direction at the same speed and in the same direction and in contact with the material to be printed. The squeegee is scanned from one end of the flat screen to the other to effect the printing operation. The contact between the flat screen and material to be printed is released just before the squeegee member arrives at the other end of the screen. The screen and squeegee member are then moved to their original position so that the operation may be repeated.

Abstract: An endless printing screen of generally annular configuration is supported in end bearings. An arrangement of tubes admits printing medium into the interior of the screen so that it can pass through the latter to print onto a web beneath the screen. A device is provided for reciprocating the endless screen.

Abstract: A removable module carrying a screen for a rotary screen printing machine, which stands on four individually vertically adjustable legs, each supported on an individual seating surface mounted on a bedplate. Two screw spindle and movable cylinder-nut mechanisms are provided for in-place angular and transverse position adjustment. The rotational drive of the screen is provided through a slidable Cardan joint.

Abstract: A novel set of basic printing inks for producing improved color tones in multicolor printing comprising four individual inks of golden-yellow, carmin, violet, and turquoise hues, respectively, and having predetermined spectral intervals between their maximum density wavelengths, the maximum density of each of the intermediate pair of colors being substantially equidistant from the middle of the visible color spectrum.

Abstract: A silk screen printing process and apparatus in which a silk screen having a porous figure printing area may be divided by partitions into compartments for different types or colors of ink. The printing operation is performed by a rapid upward acceleration of the silk screen and sheet on which the printing is to be performed, thereby causing the ink to flow through the porous printing area of the screen as a result of inertia. Various types of apparatus may be used to perform the process, one consisting of a platen on which the sheet and silk screen are placed, and a hammer type element which strikes the underside of the platen to produce the upward acceleration.

Abstract: A web printing apparatus includes a positively driven printing base, a drive for driving a web to be printed over the printing base, and rollers positioned to contact and print a first portion of the web opposite the printing base. The drive moves the web at a higher speed than the base. The rollers press down on the web with sufficient force to create a friction connection between the web and the base, thus retarding and reducing the speed of the first portion of the web and tensioning a second portion of the web downstream of the rollers. The tension thus created in the second portion of the web is used to reduce the speed thereof.

Abstract: A carpet or fabric screen printer has a plurality of size-adjustable screen printing rolls mounted on re-positionable heads on a long frame for the purpose of repeating a pattern in different colors. Each printing head comprises a screen printing roll on which is mounted the screen and inside of which is mounted a roller of magnetically attracted material or having a magnet unit having both North and South poles along the length thereof. The magnetic roller rolls when the head is in operation but remains in one position with respect to the screen printing roll. A continuous conveyor belt delivers the fabric sheet beneath the screen and the roller inside the screen roll. A second magnetic roller on the head beneath the conveyor belt and on the other side of the conveyor belt from the screen and the second roller also has North and South poles which are attracted by corresponding opposite poles on the first roller.

Abstract: In a process and apparatus for coloring a pile fabric, liquid coloring material is introduced into compartments, and the pile fabric is pressed face downwardly into the compartments. In order to provide regions wherein different colors are distinct from one another, a resilient barrier is provided between compartments to which different colored liquid coloring material is introduced and in order to provide areas of the pile fabric wherein the colors are blended, liquid coloring material of different colors is introduced into the compartments in regions not separated by a resilient barrier.

Abstract: A rotary screen printing machine comprising a travelling endless belt and at least one thin-walled cylindrical screen stencil for cooperating with the material to be printed which is supported upon the upper horizontal flight of said belt. A pressure roller and an elastical smoothing blade are arranged above the belt for cooperation with the material in an area lying before the first screen stencil.

Abstract: A machine for printing a recurrent pattern on sections of predetermined length of a textile web, comprising a number of parallel rotary-screen printing units spaced apart in the direction of web motion, includes a first sensor for detecting the leading edge of an oncoming web section to be imprinted and a second sensor for ascertaining the passage of a mark indicating the start of a printing pattern on the first unit. The odd-numbered units print the first half of the pattern, in different colors, whereas the even-numbered units print the second half in corresponding colors; between printing operations, the screen of each unit is lifted off the web and can be angularly readjusted to compensate for relative disalignment between the web sections and the printing patterns.

Abstract: A rotary screen printing machine has a number of cylindrical stencils each with an internal squeegee and at least one stencil has an impermeable area parallel to the center line of the stencil. The squeegee of the said stencil may be raised or lowered while the impermeable area is in contact with the material being printed such that the printing action may be interrupted during one or more revolutions of the stencil during continuous operation of the printing machine. The stencil will print only when the screen portion is in contact with the material and the squeegee is lowered. A pattern can thus be printed which has a repeat length greater than the circumference of a stencil.

Abstract: The invention provides for a screen printing method for printing on ceramic articles, wherein color in the form of an image to be printed is transferred via intermediate carriers on to the article to be imprinted wherein the improvement resides in that four intermediate carriers are each provided simultaneously with a color extract to produce a four-color print from a plurality of circulating intermediate carriers, and these color extracts are then transferred to four of a plurality of circulating articles, the cycle of the articles being staggered in relation to that of the intermediate carriers so that each intermediate carrier with a different color extract is brought up to each article in succession. The invention has particular application to a four-color print.

Abstract: A cylindrical printing screen, rotatable about a horizontal axis, rolls on a continuously moving substrate to be imprinted and is internally provided with an applicator forming a gap through which a printing dye can pass to the substrate along the nadir of the screen. A codirectionally rotating scraper roll continuously sweeps the descending part of the outer screen surface and is in turn contacted by a squeeze roller or a doctor blade for the removal of excess dye. A similar cleaning device, e.g. in the form of an elongate suction nozzle, may be disposed along the rising part of the inner screen surface. The scraper roll can be continuously irrigated with rinse water and may be mounted, together with one or more spray heads, on a swingable frame for disengagement from the printing screen.

Abstract: A screen printing machine is provided which includes a frame, a backing member supported by the frame, and at least one rotary screen assembly carried by the frame. Each rotary screen assembly includes an inner elongated support member, an outer hollow screen rotatably supported about the inner elongated support member for rotation thereabout, and an elongated applicator, which may be a conventional squeegee, which engages the inner surface of the hollow screen and which is supported by the inner elongated support member located within the screen. A first drive is provided which is operatively connected with the backing member for rotating the backing member. A second drive is provided for rotating the hollow screen independently of said first drive and the backing member.

Abstract: A die member is formed having a desired configuration formed thereon by a metal rule. Absorbent means are placed within said metal rule for receiving a stain. Press means are provided to press the metal rule into a stock-piece to emboss the design therein and stain it with the stain contained by the absorbent means. The stain may be applied manually or by an automatic system. The press means can be a conventional press or other types which will provide the desired action. One other arrangement uses a cylindrical roller having a cylindrical die member thereon which can roll over a stock-piece to provide the same result.

Abstract: A machine for printing a recurrent pattern on sections of predetermined length of a textile web, comprising a number of parallel rotary-screen printing units spaced apart in the direction of web motion, includes a first sensor for detecting the leading edge of an oncoming web section to be imprinted and a second sensor for ascertaining the passage of a mark indicating the start of a printing pattern on the first unit. The odd-numbered units print the first half of the pattern, in different colors, whereas the even-numbered units print the second half in corresponding colors; between printing operations, the screen of each unit is lifted off the web and can be angularly readjusted to compensate for relative disalignment between the web sections and the printing patterns.

Abstract: Stencilling apparatus for applying successive coatings to traveling web stock. The web stock may be advanced in successive wraparound turns to the same stencilling station. The adjacent turns are stencilled simultaneously at this station by a multipart squeegee in a multipart stencil frame, after each is placed in registry. The web tension in each turn of web stock is independently controlled by a pressure differential controller that retains a variable length loop of web under tension by a dynamic air flow pressure differential, which also causes a drying action of any coating on the web.

Abstract: Slit registry apparatus and method for registry of flexible, generally planar stock as for stencilling thereon, involving formation of periodic transverse slits and adjacent edges in the stock, at least one of the edges and the adjacent stock zone or area being offset from the plane of the stock for engagement of this offset edge by a registration surface.

Abstract: A screen printing machine wherein one end of a rotary stencil is driven by a power train which receives torque from a motor. The other end of the stencil is driven by the power train through the medium of a cylindrical squeegee which is disposed in the stencil and drives an idler gear in the frame of the machine. The idler gear rotates a gear which drives the other end of the stencil. The ends of the stencil are coupled to driving sleeves which are rotatable in discrete bearing members each of which is adjustable relative to the machine frame. That bearing member which receives the driving sleeve for the one end of the stencil is pivotable in the frame about an axis which is normal to the axis of the stencil and is also movable in the axial direction of the stencil. The other bearing member is pivotable in the frame about an axis which is normal to the axis of the stencil and is also movable transversely of the axis of the stencil.

Abstract: Automatic registration of the web of sheet material on a printing cylinder is effected in a silk screen printing apparatus which includes a printing frame reciprocably movable in an impressing and return cycle. A printing cylinder is arranged for carrying a web of sheet material in impression receiving relation to said printing frame during the impression-forming portion of its movement. Web guide rollers are arranged to direct the web to and from said printing cylinder. A first drive arrangement, including a first motor, is connected both to drive the printing frame reciprocably and said printing cylinder unidirectionally in the impression-receiving direction. The printing cylinder is disengaged from the first drive during the reverse travel of the printing frame so that the web is stationary. A second drive arrangement is provided, including a second motor, connected to drive the printing cylinder in a second direction, that is the reverse of the printing direction.

Abstract: A screen printing machine which includes a frame, a backing member supported by the frame, and at least one rotary screen assembly carried by the frame in adjustable relationship with respect to the backing member. Each rotary screen assembly includes an inner elongated support member, an outer hollow screen rotatably supported about the inner elongated support member for rotation thereabout, and elongated applicator means which engages the inner surface of the hollow screen and which is supported by the elongated inner support means. Pressure adjusting means are carried within the interior of the hollow screen, comprising a plurality of individually inflatable elongated tubes positioned behind the elongated applicator means. In one embodiment, the outermost tubes extend beyond the extremities of the applicator means.