Abstract: A reciprocating saw includes a carrier operable to cooperate with a motor to translate rotational movement of the motor into reciprocal linear actuation of a saw blade. A carrier is slidably disposed within the housing and includes a first portion adapted to receive a saw blade and a second portion having a slot therethrough. A rotatable element is fixed for rotation about an output shaft of the motor. A follower operably interconnects the carrier and the rotatable element wherein rotation of the rotatable element provides reciprocal linear motion of the carrier whereby the follower follows a reciprocal linear path within the slot.

Abstract: A machine for cutting plate-shaped workpieces, incorporates a tool guide (7), an operating handle (13), and a cutting tool (6) which revolves along the tool guide (7). By moving the operating handle (13), the tool guide (7) with its cutting tool (6) can be shifted from an idle position into an active position. In its idle position the cutting tool (6) is disengaged from, and, in its active position it is engaged in, the workpiece to be processed. Provided between the operating handle (13) and the tool guide (7) is a gearing mechanism (14, 18) with a transmission ratio which varies with the movement of the operating handle (13) as a function of the position of the tool guide (7) and its cutting tool (6) relative to the workpiece.

Abstract: A disk-shaped tool, in particular, a circular saw blade, includes cutting teeth (11, 12, 13), in which the cutting teeth (12, 13, 14) are divided into groups (11). Each first tooth (12) of a group (11), in the cutting direction (15), protrudes radially farther outward with its cutting edge than the following tooth or teeth (13, 14) of the group (11).

Abstract: An automatic iron core air gap cutting apparatus includes an electronic control box and a transmission system to receive signals and control from the electronic control box for receiving finished iron cores to perform air gaps cutting operations. The completed iron cores with the air gaps formed thereon are pushed to an exit chute for packaging and proceeding the follow on processes, thereby to form an automatic iron core fabrication processing.

Abstract: A stringed instrument with a compliantly suspended sound board allows for deeper, richer sound in s smaller sized instrument. The compliant suspension of the sound board allows for greater acoustic excursions at the edges of the sound board. The resonance set up between the compliance of the sound suspension and the mass of the sound board may be placed below and near the Helmholtz resonance of the instrument to effectively create a broader, lower-frequency Helmholtz resonance than would typically be achievable in instruments of similar size.

Abstract: An improved musical instrument string is provided. The string includes a polymer cover that protects the string, from contamination while maintaining the original “lively” sound of the musical string. By supplying the cover over a conventional string and preferable over a conventional wound string, the string is protected against contamination while also making the string easier to play. The preferred cover comprises at least one layer of expanded polytetrafluoroethylene (ePTFE) that is most preferably sealed with a polymer coating.

Abstract: An instrument stand for supporting a musical instrument, such as and particularly a guitar or electric bass, when in use or at rest, with an adjustable mounting portion to hold the instrument close to the instrument player's body and a flexible extending shaft that allows the instrument player to be mobile or move around while operating the instrument on the stand and use the flexible stand for adding intonation or musicality to the performance.

Abstract: A cylindrical water key comprises a spring loaded valve assembly which may be pressed onto a hole at a low point in a lung powered musical instrument. The portion which attaches to the instrument may be made to be flush with the interior wall of the instrument when in the unactivated state. The movable portion need only be two pieces rigidly attached together so that when the outer end is pressed, the inner end rises slightly into the interior of the instrument allowing for the undesired accumulated fluid to flow out of the instrument for discard. For trombones it results in a water key that may be operated hands free.

Abstract: A drum assembly has a hollow drum shell with a drumhead and drum rim closing one or both end thereof and a guard member secured on one or both drum rims. The guard member is a sleeve member fitting over one or both edges of the drum dim and is secured thereon by setscrews or bolts and locknuts.

Abstract: An extremely easy-to-play keyboard for musical instrument capable of forming any keyboard rows such as a semitone arrangement to a diatessaron arrangement and a chord arrangement with one keyboard substrate, wherein the keyboard substrate is formed so that the keyboard is formed by disposing, parallel with each other, a large number of key substrates (1) extending in the longitudinal direction of the keyboard with a difference of semitone, installing a plurality of key top mounting parts (5) on each key substrate (1) in the longitudinal direction, and installing the key tops (4) on any key top mounting parts, or by combining various types of keyboard rows with each other, or disposing the keys positioned adjacent laterally to each other in all or a part of the keyboard rows with a difference of minor third and those positioned adjacent longitudinally to each other with a difference of whole tone in the direction from the front side to the right rear side.

Abstract: A scale indicator for a keyboard of a keyboard instrument has a stand, a belt and an indicating element. The belt is moveably mounted on the stand. A key selecting area is mounted on the belt and has multiple key-selecting blocks each illuminating at least one symbol of a musical key. A note illuminating area is mounted on the belt and has multiple note-illuminating blocks. Each note-illuminating block shows a symbol of a note and corresponds to one of the keys of the keyboard instrument. The indicating element corresponds to one of the key-selecting blocks to select the music key shown on the key-selecting block. Accordingly, the user can strike the keys on the keyboard according to the note symbols on the note-illuminating blocks in the selected music key.

Abstract: The apparatus involves a hand-held housing with a memory for storing coded audio event data, a mechanism for downloading into the memory coded audio event data and digital-audio electronics for retrieving coded audio event data from memory, converting it to an audio signal and playing it out. The data preferably is stored in accordance with a musical instrument digital interface (MIDI) standard, and may be created on an appropriately equipped personal computer (PC). The capacity of such a hand-held device is far greater than if the data were conventionally digitized or coded.

Abstract: A plurality of music apparatus 10 to 30 such as an electronic musical instrument and a microphone apparatus are connected by wireless to a mixer apparatus 40. A Bluetooth module is adopted as wireless communication means to construct a piconet with mixer apparatus 40 functioning as a master and music apparatus 10 to 30 functioning as slaves. Audio signals and MIDI data from music apparatus 10 to 30 are transmitted by wireless to mixer apparatus 40 through isosynchronous communication procedure using Bluetooth modules 11, 21, 31, 41. In mixer apparatus 40, with regard to the MIDI data, music tone signals based on the MIDI data are produced, whereafter the produced music tone signals and the aforesaid audio signals transmitted by wireless are mixed. Wiring by means of cables between a plurality of music apparatus and a mixer apparatus is abolished, thereby eliminating the cumbersomeness of wiring and the restrictions accompanying the wiring.

Abstract: On a casing of an electronic keyboard instrument, there are provided front speakers, rear speakers and upper speakers as non-front speakers, a woofer speaker, and a vibrator. Tone generator section generates tone signals of tone colors corresponding to tones of various musical instruments. Assignment section adjusts, on a tone-color-by-tone-color basis, tone volume allocations, of the generated tone signals, to the speakers and vibrator. Further, the thus-adjusted tone signals are mixed for each of speaker reproduction systems and vibrator drive system, and then the resultant mixed tone signals of the speaker reproduction systems and vibrator drive system are supplied to corresponding ones of the speakers and vibrator.

Abstract: As an electronic tone is generated in response to performing operation, the electronic tone is picked up by microphones corresponding to left and right channels, and picked-up sound signals thus generated by the microphones are then subjected to signal processing, such as reverberation impartment utilizing acoustic conditions of the interior of a room. Picked-up sound signals having undergone such signal processing are audibly reproduced via rear speakers. Then, once an automatic adjustment instruction is given from a user, measuring tones are reproduced stereophonically, and contents of the signal processing of the individual channels are adjusted on the basis of measured results of picked-up sound signals generated by the microphones picking up the reproduced measuring tones.

Abstract: Aircraft (10) carries at least two clusters of barrel assemblies. At least one cluster is oriented normal to the longitudinal axis of aircraft (10) and at least one other cluster is oriented parallel to the longitudinal axis of aircraft (10). Each cluster comprises a plurality of barrel assemblies, with each barrel having a plurality of axially disposed projectiles therein. Each projectile is associated with a discrete, sequentially activated propellant charge for propelling it through the muzzle of the barrel. Various methods of deploying a multiplicity of projectiles onto a target from aircraft (10) are also described and claimed. The projectiles deployment might occur at any time whils aircraft (10) is approaching the target, overflying the target, or departing from the target. The projectiles may include smoke canisters, high explosive canisters, flares, electronic and thermal countermeasures, mines, grenades or cameras.

Abstract: A system to provide mechanical energy to well-head equipment by directing pressurized gas existing in nearby pipelines to an engine. The engine is a linearly reciprocating piston in a closed cylinder driven by pressure differentials between the gas on either side of its piston, the differential being controlled by a switching valve which directs higher and lower pressured gas to the appropriate side of the piston, and which recirculates spent gas from the lower pressure side of the piston back to the pipeline. The system is a closed system, and avoids venting or flaring gas used in the engine.

Abstract: A tubular member 18 is slidably fitted into a valve body, and is formed with a vacuum valve seat 21. The tubular member 18, a valve plunger 16 and the valve body 3 are maintained in their inoperative positions shown by abutment against a key member 13. A holder 14 is formed with a tapered surface 14a to assist in allowing an elastic deformation of a reaction disc 15. Immediately after the commencement of operation of a valve mechanism 7 as an input shaft 8 is driven forward, the input shaft 8 and the tubular member 18 are maintained in their inoperative positions until a rear end face of a variable pressure passage 28 abuts against the key member 13. The operating stroke of an input shaft 6 can be chosen to be less than the operating stroke of an output shaft 11 while preventing the jumping value from increasing to an excessively high value.

Abstract: In a negative pressure boosting device 1 of the present invention, a movable valve seat 28 is air-tightly and slidably disposed in a concavity of a valve body 4. The movable valve seat 28 and a valve element 12 compose a vacuum valve 15. The movable valve seat 28 and a control spring 29 compressed and disposed between the movable valve seat 28 and the valve body 4 compose a servo ratio changing means. The servo ratio changing means is provided on a valve mechanism (the vacuum valve 15). During operation, the valve element 12 comes in contact with the movable valve seat 28. However, the movable valve seat 28 does not move in a low-input range so that the servo ratio in this state is relatively large ratio i.e. the servo ratio for the normal operation. In the high-input range, the control spring 29 starts to be compressed to allow the movement of the movable valve seat 28, thereby changing the servo ratio to a small servo ratio.

Abstract: A method for controlling a hydraulic system may include receiving an input command from an input device, generating a desired working pressure value relating to a working chamber of an actuator based on the input command, and generating a desired pressure value relating to a non-working chamber of the actuator based on the input command. The method may also include operating a valve assembly to control a fluid flow condition of the working chamber and to control fluid flow from the non-working chamber.

Abstract: A method is provided for controlling hydraulic flow through a valve. The method includes determining a pressure drop across the valve and estimating a flow rate through the valve based on the pressure drop and a displacement of the valve. A command signal to actuate the valve is computed based on a desired flow rate and the estimated flow rate through the valve.

Abstract: A fluid circuit for raising and lowering an implement including a quick drop valve member movable between at least a first position and a second position, the first position corresponding to a non-quick drop hydraulic fluid flow path of the fluid circuit and the second position corresponding to a quick drop hydraulic fluid flow path of the fluid circuit, the quick drop valve member being movable between at least the first and second positions based on pressures in the fluid circuit produced by hydraulic fluid. The fluid circuit further including a control system configured to selectively apply a biasing force against the quick drop valve member biasing the quick drop valve in the first position, the control system providing the biasing force independent of pressures in the fluid circuit produced by the hydraulic fluid.

Abstract: A movable cylinder (20) is provided with an inner cylinder chamber (21) and an outer cylinder chamber (31) which surrounds the inner cylinder chamber. The inner cylinder chamber is provided with an inner piston (22) inserted therein, which is integrally secured to the stationary rods. The inner cylinder chamber is also provided with an inner front inlet (25), an inner rear inlet (26), an inner rear outlet (27) and an inner front outlet (28), for working fluid to move the movable cylinder. The outer cylinder chamber is provided therein with an outer piston (32) having a front operation member (33) which is moved close to or away from the front stationary table and a rear operation member (34) which is moved close to or away from the rear stationary table. The outer cylinder chamber is also provided with an outer rear inlet (35) which is connected to the inner rear outlet and an outer front inlet (36) which is connected to the inner front outlet, for the working fluid to move the outer piston.

Abstract: A shoe for a swash plate type compressor disposed between a swash plate and a corresponding one of a plurality of pistons, the shoe being characterized by comprising: a base body formed of an aluminum alloy; and a metal plating film which covers at least a portion of a surface of the base body.

Abstract: The present involves an anti-rotation piston for a swash plate compressor assembly having a piston-receiving bore and an anti-rotation groove formed adjacently therein. The anti-rotation piston comprises a body and a skirt extending from the body. The body has a first radius of curvature and first and second ends. The body complements the bore so that the body is slideably moveable within the bore. The skirt extends from the second end of the body and has an arcuate outer surface which complements the groove so that the skirt is slideably moveable along the groove. The skirt has a second radius of curvature which is greater than the first radius of curvature. The second radius of curvature is offset from the first radius of curvature so that the body and the skirt have differing axes of rotation which prevents the piston from rotating.

Abstract: A piston carrier (46) supports an elongated, slender piston rod (2) for reciprocation in a pump cylinder (30) to pump fluid into and out of the cylinder (30). The piston rod (12) is made of a material such as sapphire or zircon and has a diameter less than about ten millimeters, and the pump can provide flows of from about 50 nanoliters to about 250 microliters per minute at pressures of several hundred bars. A drive motor (18) rotates a threaded screw (58) and a drive nut (70) of a drive system (26) applies a linear drive force to the piston carrier (46). A ball and socket connection (74) between the drive system (26) and the piston carrier (46) avoids the need for precise alignment to prevent breakage of the fragile piston (12). A magnet (80) in the (78) holds the ball (76) in place and avoids the need for a spring or other mechanical holder. The socket (78) also includes a ring (88) of a low, reluctance material surrounding the ball (76) to increase the magnetic retention force.

Abstract: A method of selectively adsorbing propylene in mixtures of propylene/propane and propylene/olefins through the use of zeolites having structures with a maximum of 8-member rings of tetraheda controlling the diffusion rate. Suitable zeolite adsorbents are those having the CHA and ITE structure types. Other 8-member ring zeolites, including aluminosilicates, with a Si:Al molar ratio of at least about 200 and having substantially no free acid are also suitable adsorbents.

Abstract: Undesirable dissolved gas is removed from a liquid by pressurizing the liquid containing the undesirable dissolved gas therein. The liquid is then directed into a hydrocyclone having an inlet optimized for liquid particle movement through a liquid vortex stream created by the hydrocyclone. A preferred gas is injected into an evacuated central area of the liquid vortex stream for absorption therein. The pressure of the liquid is then lowered, such as by directing the liquid to a discharge tank, in order to remove a proportional amount of absorbed preferred gas and the undesirable dissolved gas from the liquid.

Abstract: In a process facility for producing semiconductor wafers, a third physical unit is configured between two physical units that produce mini environments. The third physical unit has a laminar flow at right angles to the laminar flows of the two physical units and is operated with a slightly higher flow velocity. According to the Bernoulli equation, the static pressure in the third physical unit is therefore lower than in the surrounding two physical units. Advantageously, therefore, no contamination from the more highly loaded one of the two physical units passes over into the lesser loaded one of the two physical units.

Abstract: A desiccant system in which a body of water-vapor-adsorbing desiccant material is sealed in a bag which is permeable to water vapor, but not to liquid water or particulates. A humidity indicator is sealed to the bag, and is sensitive to humidity within the bag, but not to water or water vapor outside the bag. The indicator changes color when a predetermined humidity level has been reached within the bag, and thereby to signal that the bag should be replaced.

Abstract: An air extraction and treatment unit (2) is located above a source of contaminated air. The apparatus has a series of ultraviolet tubes (20) for treating the decontaminated air. The unit is arranged such that in use substantially no direct or reflected ultraviolet light is visible from outside the unit. Furthermore even when a removable filter (4) is removed, there is no direct line of sight to the ultra-violet sources.

Abstract: The invention relates to an improved flattening device for flattening pieces of meat so that said pieces of meat have a larger surface and a reduced thickness. The inventive device comprises a conveyor device (15, 31) on which the pieces of meat to be flattened are supplied to the flattening zone. In the area of the flattening zone mallet rolls or flattening rolls (29) are provided that can be displaced relative to the piece of meat. The distance between the mallet rolls or flattening rolls (29) that can be moved across the piece of meat to be flattened and a counter pressure device or surface (33) can be preferably reduced while the piece of meat is flattened.

Abstract: This invention relates to a uniform-heating cookware, which serves to bake, to boil, to fry, or to stir fry, comprising a thin layer of far infrared radiation material coated on the food-contacting surface of a conventional cooking utensil such as a pan, a wok, a pot, or the like. The said far infrared radiation layer serves as a highly efficient transducer that transfers heat and the associated near infrared radiation from the heating source into longer-wavelength far infrared radiation and thereby alters its heat distribution profile. It provides a way of uniform heating of food, without a worry of burning food even if the food is in direct contact with the layer at heating surface. Furthermore, the device of the present invention can uniformly cook frozen foods at no requirement of defrosting. It therefore shortens cooking time and saves energy.

Abstract: An apparatus for cutting optimally sized fruit and vegetable pieces, such as potatoes, that is made of a dump chute, a trough, a conveyor having paddles forming paddle pockets, a drive means, at least one sensor, a programmable logic controller (PLC), and a cutter assembly. The dump chute receives materials and loads them singly onto a conveyor within a paddle pocket disposed along the conveyor. The drive means moves the conveyor, which then advances the material from the dump chute toward the cutter. As the material moves along the trough, the sensor determines the first and second ends of the potato and inputs this information to the PLC. This PLC has a human interactive component for selecting the criteria to be used in selecting the dimensions of the desired potato pieces to be obtained. The PLC receives the information from the sensors and determines the number and sizes of the pieces that the potato should be cut into to achieve the optimal results based upon the pre-selected criteria.

Abstract: A drive arrangement for controlling the tying function of a large rectangular baler includes a knotter drive shaft having a drive member mounted on it for free rotation. A one-way clutch is connected between the drive member and the drive shaft for rotating the drive shaft only when the drive member is rotated in a first direction. The drive member has an elongate flexible element associated therewith and is driven in the first direction by retraction of an extensible and retractable hydraulic motor having its rod end coupled to one end of the flexible element, the other end of the flexible element being coupled to a spring that stores energy only when the hydraulic motor is retracted. At the end of the tying function, the hydraulic motor is extended to its beginning position, the loaded spring then taking up the slack in the flexible element and the one-way clutch then free-wheeling.

Abstract: Systems and methods for threading and feeding a length of wire into a wire-tying track, for withdrawing at least some of the wire from the wire-tying track to tension the wire around one or more objects, and for extracting waste wire from the system. The object of the invention herein being a feed and tension mechanism comprising a feed and tension wheel, an accumulator disk, a primary nip mechanism for frictionally engaging the wire at the contact region between the primary nip and the feed and tension wheel, a drive system having two independently operable motors, and wire guiding devices for directing and routing the wire through the feed and tension mechanism. The present invention may further comprise a supplementary nip mechanism to facilitate the threading of the wire into the mechanism, a wire stripping mechanism for extracting any waste wire from the mechanism, and a series of wire sensing devices in communication with a control system to sequence and control the operational cycles of the system.

Abstract: The invention relates to a device (10) for gathering and compacting compactible goods such as paper towels. Said device comprises a housing (12) provided with an opening (14) appointed for supplying the goods, with a holder (16) for holding the compactible goods, and with a compacting element (18). Said compacting element extends above the holder, can pivot around an arbor (22) and can compact the goods between the holder bottom and the compacting element. The aim of the invention is to permit, with a high degree of reliability, a problem-free compacting of goods using constructively simple measures. To this end, the invention provides that a drive (34) with a gearing (36) exits the compacting element (18). In order to pivot the compacting element, said gearing meshes with a denticulated element (42) that curves around the arbor (22) serving as a center of curvature.

Abstract: A jaw cylinder in a jaw folder is provided. A first base (1) includes a stationary member (11) in a jaw mechanism. A second base (2) includes a swing member (21) having a jaw portion accessible to the jaw portion of the stationary member (11). A third base (3) has end axes (31a, 31b) at both ends and is rotatably supported by the end axes (31a, 31b) on a pair of opposite frames (Fa, Fb). The first (1) and second (2) bases are rotatably located on the third base (3) about the rotational centerline of the third base (3) relative to the third base (3). The first (1), second (2) and third (3) bases synchronously rotate to move the swing member (21) close to and apart from the stationary member (11) to grip a print therebetween. A jaw clearance adjusting mechanism (4) turns the first (1) and second (2) bases about the rotational centerline of the third base (3) in opposite directions to adjust a gap between the jaw portions of the stationary (11) and swing (21) members in the jaw mechanism.

Abstract: A method of printing indicia on a golf ball having a dimpled surface including the steps of providing a color image having a plurality of colors; saving the color image into computer memory as a digital image; creating at least six digital copies of the digital image and assigning at least one digital copy to each of at least six color channels; filtering the plurality of colors into the at least six color channels by removing all but an assigned color of that color channel from each corresponding digital copy resulting in at least six color separations; creating a film positive for each of the at least six color separations; placing the film positive on a pad-printing cliché; etching the film positive into the pad-printing cliché creating a transfer image; distributing a layer of ink over the pad-printing cliché; and printing the transfer image from the surface of the pad-printing cliché to the dimpled surface of the golf ball.

Abstract: An apparatus includes a rotary printing assembly operative for directly printing a layer of radiation curable material onto the cylindrical surface of individual articles. The rotary printing assembly includes a rotationally supported belt defining an interior region, the belt having a planar portion for contact with the cylindrical surface of the articles for directly printing a layer of the radiation curable material thereon. At least one squeegee is arranged within the interior region of the belt having a portion engaging the belt for contacting the planar portion of the belt with the cylindrical surface of the article. The squeegee is moveable longitudinally within the interior region of the belt during the printing operation. A radiation emitting device can be positioned adjacent the rotary printing assembly for at least partially curing the layer of radiation curable material applied to the articles.

Abstract: A method for patterning includes filling ink in a recess of a cliché corresponding to a position of a pattern which will be formed, transferring the ink onto a surface of a transfer roll by rotating the transfer roll while the transfer roll is contacted to the cliché, detecting variation of the substrate by calculating the area of the substrate on which the ink is transferred, calculating moving speed of the substrate on a basis of the detected variation, and re-transferring the ink on the surface of the transfer roll onto the substrate by rotating the transfer roll when the transfer roll is contacted to the substrate while moving the substrate at the calculated moving speed.

Abstract: A quick release pallet for a screen printing machine in which the pallet has locating recesses at either ends which locate the pallet on the pallet arm of the screen printing machine by engaging locating lugs on the pallet arm. A toggle clip secures the pallet in position. The advantages are that the pallet has no attachments and can be very quickly positioned and released. Because there are no screw holes in the top surface of the pallet it has a larger print area. The pallet can be modified to a vacuum pallet with a perforated or porous top plate and a vacuum manifold connected to the base plate and air spaces being provided by machined channels in the base plate or a mesh interposed between the base plate and the top plate.

Abstract: A stencil printer is linked with a non-stencil printer. A number of copies to be printed is set. Working mode of the stencil printer is set to a stencil making mode or an ink transfer mode. A stencil is made when the working mode of the stencil printer is set to the stencil making mode and ink is transferred to a printing paper through the stencil when the stencil printer is set to the ink transfer mode. When the number of copies set is not smaller than a predetermined threshold value, the stencil printer is used, and when the number of copies is smaller than the predetermined threshold value, the non-stencil printer is used. Switching between the stencil printer and the non-stencil printer is inhibited when the working mode of the stencil printer is the ink transfer mode.

Abstract: A novel, inexpensive and compact printing press is provided, having a central plate cylinder (1) including at least two printing plates (5) mounted on the peripheral side, around which are arranged in a satellite configuration at least two blanket cylinders (3) having assigned inking units (7), including a transport device (13), which loops around the blanket cylinder (3) on the outside, in the manner of a closed, continuous belt, having printing sheets, which are pressed for the printing operation by compensating rollers (15) against blanket cylinders (3), and having a control unit (11), which engages the particular inking unit (7) and the blanket cylinder (3) on the corresponding printing plate (5) and lifts it off of the other printing plate(s) (5).

Abstract: A sheet-fed rotary printing press for selective recto printing and recto and verso printing includes a three-drum reversing device having three cylinders cooperatively disposed behind one another between respective impression cylinders of two adjacent printing units. The three cylinders include one at least double-size transfer cylinder, one at least double-size storage drum, and one at least single-size reversing drum. Grippers prescribe a circular periphery of the transfer cylinder. The transfer cylinder has an outer contour smaller than the circular periphery prescribed by the grippers of the transfer cylinder. Other grippers prescribe a circular periphery of the reversing drum. The reversing drum has an outer contour smaller than the circular periphery prescribed by the grippers of the reversing drum. A method of operating the three-drum reversing device is also provided.

Abstract: There is provided a double-sided printing press that includes a sheet-turning-over mechanism for turning sheets upside down at a sheet-turning-timing according to a set length of sheets, which has been previously set for the sheet-turning-over mechanism; and a sheet-length-detection means for detecting the length of sheets, which are fed to the sheet-turning-over mechanism; wherein where the length of sheets, which are fed to the sheet-turning-over mechanism and detected by the sheet-length-detection means, is deferent from the set length of sheets as a result of comparison therebetween, the sheets are stopped from being transferred to the sheet-turning-over mechanism.

Abstract: An ink chamber (1) for rotation printing machines is shown, which is comprised of at least the following elements:

Abstract: An ink cooling system for printing presses is disclosed. The ink cooling system is arranged to cool ink at locations within a printing press at the locations in which the ink properties are most likely to be adversely impacted, and which locations are or may be physically remote from the centralized ink supply or ink tanks. The disclosed system thus counteracts localized heating that commonly occurs in printing presses, thus minimizing or eliminating printing problems caused by heated ink.

Abstract: The present invention relates to a photopolymerizable presensitized plate used for preparing a lithographic printing plate comprising an aluminum substrate provided thereon with at least a photopolymerizable light-sensitive layer, the lithographic printing plate is characterized in that the edges of the opposed two sides or four sides are curved from the light-sensitive layer towards the back face, wherein a drop observed in the curved portion at the section has a height ranging from 30 to 200 &mgr;m and wherein the area of notched portion on the curved portion ranges from 200 to 100,000 &mgr;m2. The lithographic printing plate prepared from the presensitized plate permits the solution of the problem such that the surface area of paper corresponding to the edges of the printing plate is stained and the achievement of excellent setter-conveying characteristics.

Abstract: The present invention provides an apparatus and method for supporting and feeding printing plates in an imaging system. The apparatus comprises a vacuum system for picking up an edge of a top printing plate from a stack of printing plates, and a peeling system including a pair of rotatable belts, a plurality of plate feed beams attached to, and extending between, the pair of rotatable belts, and a drive system for rotating the pair of rotatable belts to displace the plurality of plate feed beams between the top printing plate and an underlying printing plate in the stack of printing plates, thereby peeling the top printing plate from the stack of printing plates.