Abstract: A gripper device for a printing machine for handling sheet-shaped material with a gripper shaft swivellable about its longitudinal axis and a gripper finger firmly connected to the gripper shaft so that a gripper point thereof is movable away from a gripper support when the gripper shaft is swivelled in a first direction, is initially displaceable into contact with the gripper support when the gripper shaft is swivelled in a second direction opposite to the first direction, and is capable of exerting a holding force on the gripper support when the gripper shaft is swivelled farther in the second direction, and a device for adjusting contact between the gripper point and the gripper support includes a resilient section forming a part of the gripper finger and connected to the gripper point, the resilient section having neutral fibers and formed as at least one resilient rod extending substantially in the direction of a plane determined by the longitudinal axis of the gripper shaft and by the gripper point.

Abstract: A printing web tensioning system that is activated in response to a break in the printing web. The system includes a pair of tensioning rollers which bracket the paper web and are movable between a spaced disengaged position and a contacting engaged position. The pair of tensioning rollers are driven by a variable speed motor, the speed of which is synchornized with the speed of the printing cylinders. Hydraulic rams are attached to the tensioning rollers to move them from the disengaged position to the engaged position when a break in the printing web is detected and the printing unit begins to shut down. Since the speed of the tensioning rollers is synchronized with the speed of the printing cylinders, web tension is maintained and a small quantity of paper web is advanced forward and collects on the floor during the shut down process. By maintaining tension on the printing web, paper is prevented from wrapping around the printing cylinders and causing damage to the print blankets.

Abstract: This relates to an attachment kit for an offset printing press of the type manufactured and sold by A. B. Dick Company, which attachment comprises a leveling system including a pair of pivoting boards constructed to be mounted in parallel relation on a base board set on the feed table of the press to support two piles of envelopes in side-by-side relation. The vertical leg of a T-shaped guide bar having its cross bar and spacer fastened to the main bar of the press, passes between the two piles of envelopes and projects into a slot in the base board. A pair of backing plates having vertically-projecting members which bear against the rear of the envelope piles, are constructed to be fastened on opposite sides of the main bar of the printing press. This arrangement enables two piles of envelopes to pass through and be printed simultaneously by the press.

Abstract: A self-inking stamp for performing an inking upstroke comprises a base part, which is adapted to be placed on the surface to be stamped and comprising an ink pad, which is opposite to the bottom surface of the base part, a type plate carrier, which is disposed in the base part and adapted to be reciprocated between the ink pad and the bottom surface of the base part and to be inverted during each stroke, and an actuating member, which embraces the base part with two side legs, which are guided on the narrow side walls of the base part, and is adapted to be displaced against spring force toward the bottom surface of the base part and the free ends of the side legs of which are interconnected by a pivot, which extends through slots formed in the narrow side walls of the base part.

Abstract: Guards for replaceable attachment to a snow plow blade near the outer ends of its cutting edge are shown. Each guard has a panel portion conforming generally to these outer ends; that portion is of a hard, impact resisting metal of high shear strength, and it has a lower margin running for at least that part of its length that extends with the cutting edge of the blade. The exterior end of at least one of the guards projects around the end of the cutting edge as a curb feeler. Also shown is a snow plow with a moldboard having an expendable cutting edge along its bottom, and attached to each end of the cutting edge, a guard of the above-described sort.

Abstract: A mounting arrangement for the control switches that control the height and angle of a vehicle mounted snowplow blade. A bracket on which the switches are mounted is attached to the gearshift lever of the vehicle so that the switches are conveniently accessible to the driver of the vehicle. The bracket has a main plate on which the switches are mounted and a flange which is connected to the shift lever by an angle member on the flange and an opposing U-bolt. By tightening nuts on the U-bolt legs, the bracket is rigidly clamped on the shift lever. The angle member resists twisting of the bracket.

Abstract: An improved automatic blanket wash system for offset printing wherein the washing medium is a water-in-oil emulsion containing 5-35 percent by weight water and 65-95 percent by weight of a water insoluble phase that contains certain hydrocarbons in specific proportions and a surfactant having an HLB of 3-11.

Abstract: A plurality of paper supply mechanisms are spaced in a vertical direction. A printing section is provided on the discharge side of the paper supply mechanisms for vertical movement. A driving mechanism positions the printing section to one of the paper supply mechanisms.

Abstract: A computer peripheral apparatus is provided which includes a printer which is connected to a computer which supplies data to be printed. The printer is fed with paper that is moved continuously by a sprocket drive and becomes printed sheets as it passes beneath a printer head of the printer. Each printed sheet moves alongside optical cells that read symbols that appear on lateral strips of paper connected by perforations about either side of the main printed sheet, which is then passed to a cropping device for cutting off the lateral strips, and then moves to a reading table which is followed by a succession of elements for routing of the printed sheets, either through a gate and into an appropriate bin, or onto a station for turning the printed sheet in a predetermined direction according to information read by the optical reading cells before its output from the apparatus.

Abstract: A thermal transfer device or the like and a tape-ribbon cartridge designed for operative insertion into and use with such device. The device includes a transfer station for transfering a selected image from a ribbon to a tape and a replaceable tape-ribbon cartridge having a tape cut-off mechanism embodied within the cartridge and actuated by a cut-off actuator arm within the machine. The cartridge of the present invention includes a self-contained, internal tape cut-off mechanism comprising a pair of cut-off blades positioned in side by side shearing relationship and actuated by an actuator arm extending into the cartridge from the machine.

Abstract: The present invention provides method and apparatus for printing a pattern on articles employing a printing plate having a grooved pattern therein in which ink is applied to such plate and a scraper blade passes thereover to remove the excess ink from the plate surface while leaving such ink in the grooves. An apertured shield can be placed over the scraped plate, the aperture positioned to expose the grooved pattern. A transfer printing pad is then contacted with the so-shielded grooved plate and picks up the ink pattern. The so-inked transfer pad is then contacted with an article to print the inked pattern thereon. In some embodiments, the apertured shield is omitted.

Abstract: An apparatus for compiling and processing a plurality of differently printed groups of sheets into collated sets is disclosed, and wherein each of the printed sheets has an indicium thereon at a predetermined location and with the predetermined location on the printed sheets for each group being different from the location of the indicium on the other group of sheets. Feeder structure is provided for sequentially depositing a sheet from each of the groups onto predetermined spaced locations of an advancing conveyor and sensors are mounted along the path of the feeder structure for detecting whether an indicium is present at the proper predetermined location on each of the withdrawn sheets, and such that the sensors are adapted to identify an improperly collated sheet as well as a missing sheet.

Abstract: A trencher machine digging boom assembly having a mounting arrangement for the digging boom wherein the boom includes a boom attaching weldment that is pivotally mounted to a boom pivot casting. The boom pivot casting is rigidly mounted to a trencher frame with a drive motor being mounted to one end of the boom pivot casting and a planetary gearbox being mounted at its opposite end. The planetary gearbox and associated drive components for the digging chain may be disconnected to permit easy and convenient removal of the digging boom for replacing its pivot bearings. Further, the torque reactions of the drive train are maintained within the boom pivot casting and are not transferred to the lift components associated with the digging boom.

Abstract: An excavator for use in tunneling operations wherein there is minimal head room, comprising a boom mounted to a mobile carriage for rectilinear movement in a horizontal plane and angular movement in a vertical plane. A rigid arm is pivotally mounted at one end to the distal end of the boom for angular movement relative thereto and a slide is supported by the arm for rectilinear movement thereon. The backhoe is fixed to the slide and there is linkage for manipulating the backhoe.

Abstract: A method and system for displacing objects, particularly flexible fabric layers, into a predetermined relative disposition wherein the objects are deposited on a supporting surface in a relatively spaced apart disposition, positional coordinates of each object are successively sensed and data relating thereto are stored in a programmed central processor unit, each object being then displaced with respect to a succeeding object, in an order reverse to the order of sensing so as to locate each object in a predetermined relative (preferably superimposed) disposition with respect to the position of the succeeding object as stored in the processor unit.

Abstract: An embossing system is disclosed for embossing cards with characters of at least two pitches. A number of embossers equal to the number of lines of characters to be embossed on the card are positioned in line. Each embosser is dedicated to the embossing of a particular line of characters with a particular pitch. A common transport belt conveys the cards from an input hopper past the embossing stations of each of the line embossers to a wait station. During embossing, the transport belt is moved from the current longitudinal position to the longitudinal position where the closest next character(s) are to be embossed by any one of the embossers. The embossed cards are conveyed from the wait station to a topper which applies topping to the embossed characters.

Abstract: A self-propelling snow removing machine includes a body frame extending rearwardly and upwardly with a steering handle attached to an upper end thereof, a snow removing mechanism operatively mounted on a front portion of the body frame, a running mechanism operatively mounted on a lower portion of the body frame, an engine mounted on the body frame and having an output shaft extending forwardly of the body frame, and a power transmitting mechansim supported on the body frame and operatively coupled to the engine, the power transmitting mechanism including a transmission for connecting the engine output shaft to the running mechanism and for connecting the engine output shaft to the snow removing mechanism. The engine has a cylinder with its axis inclined laterally of the body frame, the power transmitting mechanism is mounted on the body frame forwardly of the engine, and further includes a gear mechanism for coupling the engine output shaft to the transmission and a clutch.

Abstract: The present invention relates to a machine for extending rolled cloth, which is used for unrolling rolled cloth, cutting the unrolled cloth into a fixed length and piling the cut cloth. The machine for extending rolled cloth includes a machine body provided with wheels and a driving source, a rolled cloth-holding stand, a cloth-supplying device provided with a drawing-out roller, a cutter and an ascending and descending device. When the cloth-extending operation is performed, the cloth-supplying portion and the cutter are moved up and down relative to the machine body by the ascending and descending device in accordance with the height of piled cloth.

Abstract: A wheelmotor direct-drives the bucketwheel for wet underwater service in dredging. This eliminates the combination of an intervening gear box and a watertight chamber to house the rotating shaft hydraulic motor of conventional dry underwater service practice. In a preferred embodiment, a compression seal is provided which is adapted to create a chamber within the seal thereby providing a first line of defense against the intrusion of water into the junction of the stationary shaft and the rotating case. By injecting underwater lubricating grease into this chamber, displacing all of the air therein, the sliding contact surfaces are lubricated and a second line of defense against the intrusion of water is provided.

Abstract: The present invention relates to a silk-screen printing machine provided with a reciprocatingly movable squeegee arrangement adapted for printing in both directions of squeegee travel, when caused to move over a stencil placed over a material to receive print resting on a printing table. A frame incorporating the stencil is included in a frame assembly comprising an outer and an inner unit. The two units are joined together at one edge part of the printing table. Both of the units can be raised and lowered at one edge part of the printing table, while only one of the units can be raised and lowered at the other, opposing edge part of the printing table.