Abstract: A silk-screen printing machine with safe removal of the printed product including a support structure, a printing head provided with a doctor blade and scraper and on which a silk-screen frame can be positioned, a printing table and, located to the side of the printing table, an element for depositing and collecting the printed product, in which the printing table is provided with a plurality of grooves, into the grooves there being insertable gripping elements which can be moved between a position in correspondence with the depositing and collecting element and a position inside the grooves. In this manner the printed product can be manipulated without danger of scoring its totally printed upper surface.

Abstract: A printing machine, particularly a sheet-fed offset printing machine, which has removable components, such as, in particular, inking-unit, dampening-unit or varnishing-unit rollers, is described. The printing machine includes an arrangement wherein it can be established, particularly via a control station of the printing machine, whether a component and which component is not properly installed. This measure is intended primarily to avoid malfunctions or even machine damage. This is achieved, according to the invention, in that the removable component has a permanent magnet which can be sensed by a sensor mounted fixedly relative to the frame of the printing machine at a point corresponding to the magnetic field produced by the permanent magnet. The signal or signals from one or more sensors are fed to an evaluation unit which determines the proper installation state from these signals.

Abstract: An object of the present invention is to provide an economical and highly operable blanket mounting apparatus in which the width of a cylinder gap on a blanket cylinder is further decreased to eliminate a printing trouble such as shock-streak and to shorten the non printing length. To achieve this object, a flat bar 15a, 15b is installed at each end of a blanket 2, a notch 16 with the same size as that of the leading edge flat bar 15a is formed in a cylinder gap 3, the leading edge flat bar 15a of the blanket 2 is inserted along a leading edge opening 3a of the notch 16, and a tail edge 2b of the blanket 2 to which a flat bar 15b is fixed is reeled by a reel bar 14, by which the cylinder gap opening is blocked by the leading edge flat bar 15a.

Abstract: A speed control device for a multi-motor drive mechanism for driving printing press components is described. The speed control device allows the control of drive motors experiencing different instantaneous loads. This is achieved in accordance with the invention by assigning the motor having the greatest load fluctuation as the master, with the other motors assigned as slaves. A signal indicative of the demand experienced by the master is smoothed and used to control the slave motors.

Abstract: The invention relates to a process and apparatus for the production of printed pages from a web that is moved continuously in the transport direction in rotary offset printing and printed on one or both sides, is heat set and then, by being transferred to at least a first cooling roller, is cooled in a first curvature direction with a first curvature radius, the web then being separated into the printed pages optionally after folding. The web is inverted, before being transferred to at least the first cooling roller, with a second curvature radius to obtain smooth, unrippled pages.

Abstract: Cleaning device for cleaning cylinders of a printing press includes a pressure member with a cleaning medium assigned thereto, the pressure member being formed as a roller angularly adjustable about a longitudinal central axis thereof, the cleaning medium being disposed on an outer cylindrical surface of the roller.

Abstract: Hand-held printing apparatus and method are disclosed that provide a replaceable ink cartridge with an ink reservoir defined therein to store wet ink that may typically have a paste like consistency. A piston movable within the ink cartridge is operably connected to the tape spool for compressing the wet ink through a nozzle of the ink cartridge onto the first of a series of printing rollers that smooth out the ink for transfer to a printing roller to effect offset printing of a desired image onto the adhesive side of clear adhesive tape. The cartridge is provided in a low cost throw away package for disposal after the ink is depleted. Multiple color logos or images can be printed by using two to four different color ink cartridges.

Abstract: A device for cleaning the outer cylindrical surfaces of cylinders in a rotary printing machine includes a cleaning cloth extending over the length of a respective cylinder and cooperating with a pressing-on element. The cleaning cloth is pressable against a respective outer cylindrical surface by the pressing-on element. The pressing-on element includes an elastically deformable body having an internal cavity. As internal pressure is applied to the hollow body, the hollow body expands to apply the cleaning cloth to the outer cylindrical surface of the cylinder. Suction is applied to the hollow body to return the cleaning cloth to a disengaged position a substantial distance from the outer cylindrical surface of the cylinder.

Abstract: A keyboard where no finger pressure is needed to input data, that uses rows of emitters opposed by rows of detectors to detect a finger position, that is environmentally sealed, and inherently intrinsic safe. The keyboard has a mouse function so an operators finger can be tracked to position a cursor on a host display, and input normal keyboard functions. A sleep mode for a display or keyboard that slows down the scan rate and emitter intensity to increase emitter life. A split keyboard for each hand with an arm rest with an arm strap to attach the keyboard to an operators arm and a strap to attach the keyboard to the arm of a chair. A learning keyboard with a mode for QWERTY or other key pattern keyboards that the position of the operators fingers are tracked and supper imposed on a display, so the operator can see when their finger is over the correct keyboard indicia so correct data entry can be made without looking at the keyboard.

Abstract: A cattle crush for restraining ruminants has end faces and rear and forward side faces. A hinge is provided in the center of one end face for opening the cattle crush and means for restraining the head of the ruminant are provided in the other end face.

Abstract: An inner sleeve portion in the form of a spacer sleeve is disclosed for being torsionally rigidly mounted on a rotogravure or flexographic mandrel that is to be rotated about its axis when used in a printing machine. The outer surface of the inner sleeve portion torsionally rigidly supports by an interference fit, an outer sleeve portion (the printing sleeve) that carries the printing matrices. The inner sleeve portion has a plurality of air channels extending from the inner surface through the outer surface. Pressurized air flowing through the channels assists in expanding the diameter of the innermost surface of the outer sleeve portion for alternatively mounting the outer sleeve portion onto the inner sleeve portion and dismounting the outer sleeve portion from the inner sleeve portion.

Abstract: A machine is disclosed for printing and/or otherwise processing blanks of sheet material in which the interior of the machine is pressurized to a super-atmospheric pressure such that the blanks are forced firmly against the transfer conveyor between sections of the machine and dust in the ambient air is prevented from entering the machine and contaminating the print function.

Abstract: A compact printing apparatus having both receipt printing and journal printing capabilities is provided in a configuration enabling POS stations equipped with a personal computer, display, and cash drawer to be assembled with good space utilization efficiency for installation in places with minimal space availability. A receipt printing mechanism 10, receipt paper housing 17 for receipt printing roll paper 11, journal printing mechanism 20, roll paper housing 27 for journal printing roll paper 21, and take-up reel housing 29 for take-up reel 22 onto which printed journal paper is taken up are arranged in line from front 6a to back 6c of printer 5. This arrangement enables part of the paper path of the printed journal paper to be viewed from outside the printer housing. This in-line arrangement also prevents wasted space inside printer 5, and achieves a narrow, compact, high reliability printer whereby the result of journal printing can be visually confirmed from outside the printer.

Abstract: A pet litter container having a covering defines an interior space. A door opening in the covering allows for pet ingress and egress. A plurality of ventilation openings are provided in the covering. A power filter is located in fluid communication with the ventilation openings for removing and filtering odors from the air in the interior space. The power filter includes a power filter housing having an air inlet and an air outlet. An air path is defined by the power filter housing between the air inlet and the air outlet. A low voltage fan is mounted in the housing in the air path for moving air at a predetermined rate from the interior space, through the air inlet, and out the air outlet for exhausting filtered air from the interior space into an interior room in a house or an apartment. A self-contained filter cartridge is removably mounted in the housing in the air path for removing odors from the air in the air path.

Abstract: A printing apparatus comprises: a print head comprising an array having an N (N=positive integer) number of dot forming elements arrayed at fixed pitches having a lower end and an upper end; a horizontal scan driver for moving the print head above and along a print medium in a horizontal scan direction; a vertical scan driver for moving the print medium in a vertical scan direction perpendicular to the horizontal scan direction, wherein a vertical scan distance that the print medium is vertically moved when the vertical scan driver is driven one time is selected such that the position of at least one dot forming element, counted from the lower end of the array of the print head in the drive of a horizontal scan is coincident with the position at least one dot forming element, counted from the upper end of the array of the print head in the drive of the horizontal scan drive after a given number of horizontal scan drives; and a head driver for performing a printing operation by intermittently driving the dot f

Abstract: A continuous web of material is unwound from a roll by driven pull rolls that feed the web material to a printing unit in a feedline of an envelope making machine. The printing unit prints a selected one of the inside surface and the outside surface of the web before the web is cut and folded to form envelopes. The printing unit is supported by a base which is mounted for pivotal movement on a platform of a fixed frame member. The base is connected to the platform by a vertical pivot pin for movement through a 180.degree. between a first position for printing the inside surface of the web and a second position for printing the outside surface of the web. The base of the printer is locked to the platform in the selected one of the first and second positions to perform the desired printing operation. The web is fed between counter-rotating impression and plate cylinders rotatably mounted and driven on the printer base.

Abstract: A method for forming a pattern on the surface of an aluminum extrusion comprises the steps of cleaning the surface of the aluminum extrusion; forming a film on the cleaned surface of the aluminum extrusion; providing a base color coating on the surface of the aluminum extrusion; baking the aluminum extrusion at a temperature of 150.degree.-300.degree. C.; washing the surface of the aluminum extrusion with an organic solvent; printing the pattern onto the base color coating by means of a power-driven metal roller which has the pattern formed on an external face thereof and which has ink provided thereon, and a polyurethane roller which contacts rotatably the external face of the metal roller and the base color coating of the aluminum extrusion for transfer printing the pattern from the metal roller to the base color coating of the aluminum extrusion; and forming a transparent protective film on the printed surface of the aluminum extrusion.

Abstract: An aquatic animal feeding assembly for use with aquariums, tanks, pools or the like. The feeding assembly (4) comprises an outer magnet (34) placed adjacent an outer surface of the aquarium wall (14) and an inner magnet (32) placed opposite the outer magnet on the inner surface of the aquarium wall such that the magnets attract to each other against the aquarium wall. A food holder (42, 60, 70) is attached to the inner magnet within the aquarium for releasably holding food within the aquarium. The magnets generate an attractive magnetic force sufficient to hold each other in place opposite the aquarium wall. In addition, the outer magnet may be moved along the aquarium wall to thereby move the inner magnet and the food holder to a desirable location within the aquarium.

Abstract: Disclosed is an improved printer and carriage drive mechanism. The carriage motor is mounted at a first side of the printer chassis, and an idler pulley is mounted at a second side of the chassis. The carriage also has a pair of idler pulleys. A single flat smooth belt is attached to the first side of the chassis. From there, it passes over to and around one of the idler pulleys on the carriage, back to and around the motor pulley, across the print zone and around the idler pulley on the second side of the chassis, back to and around the other carriage idler pulley, and then back to the second side of the chassis, where it is attached. The motor is movably attached to the chassis and is tensioned by a spring. This mechanism provides for substantial mechanical advantage over common simple carriage drive mechanisms. A smaller, less expensive motor and a quieter flat smooth belt can be used. The motor is allowed to run at more optimal speeds and expensive ball bearings can be avoided in the motor and pulleys.

Abstract: The invention relates to an apparatus for offset presses, and includes an air-IR drying box, through which ready printed sheets are caused to be conveyed with the aid of a sheet gripping shaft, for the purpose of drying pigment deposited on the sheets. The box has top and bottom sections separated at each lateral side by a gap between the sections. Brushes along the gaps delimit the box laterally. The brush at each lateral side comprises brush material covering the respective gap and extending perpendicularly to the conveying direction for preventing the spread of heat radiation and hot air from the IR lamps in the box to different machine parts of the press. The gripping shaft is of a length to extend through the gaps and to deflect the brush material as the shaft passes along the gap.