Abstract: In steps S25 to S42, in order to activate an inactive catalyst earlier, the air-fuel ratio in a combustion chamber is set to be &lgr;≈1 during a period T1 after engine start until catalyst light-off at around 50% HC purifying ratio immediately after the HC purifying ratio begins to rapidly rise, before the catalyst warms up, divisional injection is made at least during the period T1 required until light-off is reached, and a swirl is weakened during the period T1 compared to a latter period which follows this period T1. The divisional injection is made and the swirl is strengthened even during the latter period.

Abstract: A device for catalytic removal of a pollutant from an exhaust gas of a combustion system, particularly, a fossil-fired power plant or an internal combustion engine, includes an exhaust-gas duct for carrying exhaust gas, a reagent, a muffler having an injection space and a mixing space for mixing the reagent with the exhaust gas, an injection device for introducing the reagent into the exhaust gas in the injection space, at least one catalytic converter disposed in the exhaust-gas duct, and mixers disposed at least one of before and after the injection space with respect to a direction of flow of the exhaust gas. The mixers define a distance therebetween, and the distance is matched to a frequency of sound to be damped in the exhaust gas. According to the invention, the injection chamber and the downstream mixture chamber are embodied as a muffler in order to reduce the emissions of sound while enabling the production of a device having a compact structure.

Abstract: A combination recessed port of an internal combustion engine having a depth and inside diameter dimensions, and an adapter tube of a length exceeding the depth dimension of the recessed port, and an exhaust pipe having an inside diameter at least as large as the inside diameter of the recessed port and an outside diameter dimension greater than the inside diameter dimension of the recessed port provides improved engine efficiency and operation. The adapter tube is formed as an open ended cylinder providing an outer cylindrical surface having an annular lip formed medially, and a tapered annular surface at a distal end for mating with the exhaust pipe. The adapter inside diameter is smaller than the diameter of the exhaust port and is of such length as to enable exhaust flow to pass completely through the adapter prior to the next discharge.

Abstract: A fluid temperature control device, which has a high cooling capacity, wide controllable temperature range and an excellent temperature control accuracy. A transparent cylinder (3) is inserted in a cylindrical-shaped vessel (1), and a columnar-shaped heating lamp (5) is inserted in the transparent cylinder (3). A fluid desired to be temperature controlled is made to flow in a passage (25) between the vessel (1) and the transparent cylinder (3). Joined to an outer peripheral surface of the vessel (1) is a thermoelectric conversion element (7), to an outer surface of which is joined a cooling pipe (9). A cooling liquid is made to flow in the cooling pipe (9). Fluid heating is effected by the heating lamp (5). Fluid cooling is effected by the cooling liquid and the thermoelectric conversion element (7) forcedly absorbs heat from the fluid and discharges heat to the cooling liquid to thereby cool the fluid rapidly and cool the fluid to a temperature lower than that of the cooling liquid.

Abstract: Apparatuses which, in steady-state operation, are at temperatures very different from ambient temperature, are each supported by a base support device, or are secured by a separating support device, and are linked by a pipe device. In order to reduce the mechanical stresses on the pipe device, at least two components of the structure among the support devices and the pipe device are made of different materials having an expansion coefficient and/or a thermal conductivity coefficient which are different so that when the plant goes from inactivity at ambient temperature to steady-state operation the variations in length of the components made of different materials are concomitant. Such structures are usable in air distillation plants.

Abstract: An expansion valve 1 comprises a prism-shaped body 10, and a valve chamber 20 is formed within the body 10. Refrigerant supplied from a compressor flows into the valve chamber through a passage 22, passes between a valve means 42 and a valve seat 23, and travels toward an evaporator through a passage 24. Refrigerant returning from the evaporator enters the body 10 through a passage 26, and after the refrigerant temperature information is transmitted to the operating shaft 40, the refrigerant flows out through a passage 28 toward the compressor. Passages 22 and 28 open to a first side surface of the body, and passages 24 and 26 open to a second side surface orthogonal to the first surface. Such structure improves the degree of freedom for mounting the expansion valve 1.

Abstract: An air conditioning system includes compressor protective means for protecting a compressor. The compressor protective means includes first and second protective values. The first protective value is set for preventing a failure of a compressor. The second protective value is lower than the first protective value in order to prevent a high pressure in a refrigerant cycle system from reaching the first protective value. The compressor protective means sets the second protective value such that the second protective value used before an elapse of a predetermined time period from startup of the compressor is lower than the second protective value used after the elapse of the predetermined time period.

Abstract: In a vehicle air conditioner where air blown into a passenger compartment is heated in a heater core using cooling water for cooling a fuel cell system as a heating source, a flow amount of cooling water flowing into the heat core is controlled by a control valve based on a surplus heat quantity of the fuel cell system and a necessary heat quantity of the passenger compartment. Further, when the surplus heat quantity of the fuel cell system is smaller than the necessary heat quantity, an insufficient heat quantity is supplemented by a supplementary heater.

Abstract: An apparatus for use on board ship to reliquefy a compressed vapor employs pre-assemblies of components. The reliquefaction is effected in a closed cycle in which a working fluid is compressed in at least one compressor, is cooled in a first heat exchanger, is expanded in a turbine and is warmed in a second heat exchanger in which the compressed vapor is at least partially condensed. The apparatus comprises a first pre-assembly including the second heat exchanger and a second pre-assembly including the first heat exchanger, the compressor and the expansion turbine are positioned. The pre-assemblies are positioned on respective platforms.

Abstract: A process for producing synthetic quartz glass using a burner composed of a plurality of concentric nozzles involves the steps of feeding a silica-forming raw material gas and a fluorine compound gas to a reaction zone from a center nozzle, feeding oxygen gas from a second nozzle outside the center nozzle, and feeding oxygen gas and/or hydrogen gas from a third nozzle. The silica-forming raw material gas is hydrolyzed to form fine particles of silica, which particles are deposited on a rotatable substrate so as to form a porous silica matrix, which is then fused to give the quartz glass. The flow rate of the oxygen gas fed from the second nozzle and the flow rate of the raw material gas are controlled so as to provide a 1.1- to 3.5-fold stoichiometric excess of oxygen. The excess oxygen suppresses Si—Si bond formation in the quartz glass, enabling the production of synthetic quartz glass having a high transmittance in the vacuum ultraviolet region.

Abstract: A method for manufacturing a synthesized silica glass optical member, the method comprising: providing a porous silica glass body; heating the porous silica glass body in an atmosphere containing hydrogen or oxygen, and sintering the porous silica glass body in an atmosphere containing fluorine compound. Furthermore, a synthesized silica glass optical member manufactured by the method.

Abstract: The invention relates to a process for the production of prestressed and/or bent glass elements.

Abstract: It is fitted in the inner escutcheon and is able to be adapted to any lock and in left- and right-handed doors. Once the lock has been opened, after a certain length of time it becomes locked again even though the handle has not been turned.

Abstract: A key ring includes a D-ring, and a key-holding ring. The D-ring couples the key-holding ring to a band.

Abstract: Apparatus for forming tapered spiral tubes from strips, is disclosed. The apparatus comprises a spiral tube forming system for forming a strip into a spiral tube; a strip infeed system adapted for feeding a strip to the pipe forming system; and computer-controlled means for continuously varying the angular orientation of the tube forming system relative to the strip infeed system to selectively vary the diameter of the forming tube. The selective variation of the diameter includes linearly tapered and curved profiles, as well as constant (unchanging) diameter profiles and combinations thereof.

Abstract: To preferably roll a hard material or an ultra thin material by more reliably supporting small diameter work rolls even under a transient condition such as when starting a rolling operation or when finishing a rolling operation, undriven both ends support rolls 9, 10, 11 and 12 are provided on outer sides of a width along which a maximum sheet width of strip passes on a barrel portion of the work roll 3, to be opposed to each other at an entry side and a delivery side of respective end portions to thereby press and support the work roll. Further, hydrostatic bearings 21 and 23 are installed at central portions of both side barrels of the work roll 3, and fluid such as oil is supplied from fluid pressure supply ports 25 and 26 to the bearing portions to thereby float up the work rolls 3 by forming gaps between the hydrostatic bearings 21 and 23 and the work roll 3 and support the work roll 3 in horizontal direction in noncontact.

Abstract: An apparatus for bending pipes comprising a bending unit and a bending finger as well as with an infeed unit and a unit for holding and moving the pipe that is to be bent. The bending unit comprises two symmetrically located bending dies, each of which has an annular groove open on the outside, between which the pipe is inserted during the bending operation. The bending finger is pivoted on a pivoted support and the axes of rotation of the support and the bending finger are parallel to each other.

Abstract: A stock inserted into a die is sandwiched between a punch and a knock-out, a predetermined pressing force is applied to the knock-out, and a pressing force larger than the sum of the pressing force of the knock-out and a pressing force for forming is applied to the punch to effect a forming work, whereby the forming accuracy can be enhanced and a final product can be obtained by going through only a slight finishing work.

Abstract: Elements with heads confronting each other are blanked out of two opposite sides of an elongate metal sheet. The differences between thicknesses of the elements at a measurement point at or nearly at necks of the elements and measurement points at ears of the elements are averaged, and a distance between corners of the metal sheet and a counter load of counter punches are established in order to keep the averages in an allowable range. When elements are blanked out of the metal sheet with the distance and the counter load thus established, even if the metal sheet is laterally displaced out of position, a belt assembly made up of the elements blanked out of the two opposite sides of the metal sheet and mixed at a ratio of about 1 to 1 poses no problems because variations in the thicknesses of the elements blanked out of one of the two opposite sides of the metal sheet and variations in the thicknesses of the elements blanked out of the other of the two opposite sides of the metal sheet cancel each other.

Abstract: The present invention is directed to a new and improved apparatus and methods for calibrating environmental air monitor. A new calibration kit comprising a gas cylinder containing calibration gas, a preset regulator valve, a flow matching valve and tubing is disclosed which overcomes many of the prior art disadvantages. The flow matching valve compensates for deviation in calibration gas flow conditions and thus eliminating the need of a sampling bag. The flow matching valve modifies the preset regulator valve by compensating loss of pressure or flow going to the sensor in the environmental air or gas monitor. In addition when an abundance of pressure or flow is transmitted to the monitor, the flow matching valve “vents-off” the excess calibration gas. A method for calibrating a gas or air monitor is also disclosed. The method and apparatus permits a laminar flow, over a sensor located in the air monitor, of constant quantity and quality that is critically necessary for calibrating air monitors.

Abstract: The invention provides a leak detection system comprising a conduit for carrying a fluid or gas and a control device for monitoring leaks in the conduit. The conduit is formed from first and second electrically conductive layers that are electrically insulated from each other. The control device includes an output, for introducing an electric charge to the first and second layers, a detector for detecting changes in the electric charge introduced to layers, and a response switch for triggering a predetermined response when a sufficient change in the electric charge is detected.

Abstract: A method for measuring interference between a valve and a piston, includes the steps of measuring a standard torque value, related to camshaft distortion caused by engine RPM, through voltage detecting means; measuring torsional distortion deviation of a crankshaft and an injection pump shaft by fixing the camshaft and forcibly rotating the crankshaft by said standard torque value; measuring vibration generated when the camshaft, the crankshaft, and the injection pump shaft are rotated, and measuring a crankshaft rotational angle to detect a piston TDC position, both measurements being conducted at a predetermined level of engine RPM; displaying piston and intake/exhaust valve movement on a graph at the piston TDC position after analyzing torsional distortion deviation and vibration of each shaft; and determining whether there is interference between the intake/exhaust valve and the piston by comparing design values with that displayed on the graph.

Abstract: A mount for mounting a rain sensor includes a housing having an access opening on first side and a port on second side for positioning adjacent an inner surface of the vehicle windshield. The second side is adapted for mounting to a vehicle windshield, for example by a layer of adhesive which is interposed between the housing and the windshield. Optionally, the housing includes an access opening and a cover, which and covers the access opening. A mirror mounting button is provided on either the housing or the cover for mounting a rearview mirror assembly to the mount. A biasing member is supported in the housing and is interposed between the first side of the housing and a rain sensor positioned in the housing, which urges a detecting surface of the rain sensor to project through the port and to optically couple the rain sensor to the vehicle windshield for detecting moisture on an outer surface of the vehicle windshield. The biasing member may comprise, for example, a helical spring or a urethane disc.

Abstract: The present invention is a transducer for photoacoustic detection having at least two piezoelectric elements wherein at least a first piezoelectric element has a first frequency and at least a second piezoelectric element has a second frequency. The improvement according to the present invention is that at least two piezoelectric elements are longitudinal elements for longitudinal waves; and the first frequency is different from said second frequency. In other words, the invention is a multi-frequency longitudinal transducer for photoacoustic detection.

Abstract: A torsional sensing load cell, particularly for mounting at support locations of an automotive seat in order to determine weight and sitting position of an occupant of a motor vehicle. The load cell has the shape of a tuning fork, with one arm fixed to a foot attached to a chassis and a second parallel arm, not contacting the first arm, arranged to support a quadrant of a seat by means of a flange on the side of the second arm, causing torsion in the arm. The two arms are connected at one end by means of a bridge section through which torsion is transmitted arising from twisting in the second arm. Torsion is measured by transducers on the bridge section with torsion signals converted to weight signals. The weight signals are used to control deployment of an air bag or other safety apparatus.

Abstract: A self-lubricating ballscrew has a screwshaft and a ballnut surrounding the screwshaft and provided with a re-circulating path for a plurality of balls which roll between the ballnut and the screwshaft when the ballscrew is in use. Lubrication means are in contact with the helical groove of the screwshaft to provide lubrication therefor. The self-lubricating means comprises a lubricant impregnated solid having an elongate portion which follows the path of and is received in the helical groove of the screwshaft. The cross-section of that portion is different from that of the said groove, so that the contact region between the said portion and the said groove coincides with the lines of contact between the balls and the screwshaft. The deposit of lubricant is thereby concentrated on those lines.

Abstract: A method for manufacturing metal structures in which minute drops of a liquid metal are emitted from an acoustic device through an inert gas. The presence of the inert gas at the surface of the liquid metal prevent the formation of an oxide skin which would absorb acoustic energy and hinder droplet formation and emission. The droplets are then emitted towards a substrate, which may form as a carrier, where they may be used to form solder bumps, circuit traces, or accreted to form a three dimensional device.

Abstract: Hard particles are provided containing 20 to 70% of Mo, 0.5 to 3% of C, 5 to 40% of Ni, 1 to 20% of Mn, a balance in Fe, and impurities, where % represents percentage by mass, and may further contain at least one of 40% or less of Co, 0.1 to 10% of Cr, and 4% or less of Si. A wear resistant iron-based sintered alloy contains 4 to 30% of Mo, 0.2 to 3% of C, 1 to 20% of Ni, 0.5 to 12% of Mn, a balance in Fe, and impurities, with respect to the total mass of the iron-based sintered alloy as represented by 100%. In the sintered alloy, the base contains 0.2 to 5% of C, 0.1 to 12% of Mn, a balance in Fe, and impurities, with respect to the total mass of the base, and the hard particles contain 20 to 70% of Mo, 0.5 to 3% of C, 5 to 40% of Ni, 1 to 20% of Mn, a balance in Fe, and impurities, with respect to the total mass of the hard particles. The hard particles are dispersed in the base with an area ratio of 10 to 60%. A method to produce a wear resistant sintered alloy of the above composition is also provided.

Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment worth with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.

Abstract: A toolholder apparatus is provided for holding a cutting tool adjacent a rotating workpiece. The apparatus includes a mounting block base and a mounting block body slidably supported on the base. A first adjustable connector connects the body to the base so that a position of the body on the base can be adjusted in a first direction toward the workpiece. A center adjustment block slidably engages the body. A second adjustable connector connects the center adjustment block and the body so that a position of the center adjustment block on the body can be adjusted in a second direction transverse to the first direction and transverse to the rotational axis of the workpiece. A head is detachably mounted on the center adjustment block. The head is removable from the center adjustment block by sliding movement in a third direction transverse to both of the first and second directions.

Abstract: This invention relates to apparatus and methods for collision detection and recovery for waterjet and abrasive-jet cutting systems. In one embodiment, an apparatus includes a first mount member coupleable to a controllably positionable mounting portion of the cutting system, and a second mount member coupleable to the cutting head and disengageably or movably coupled to the first mount member. Embodiments of the inventions may also have a sensing circuit having at least one first conductive element disposed on the first mount member and at least one second conductive element disposed on the second mount member. In the event of a collision between the cutting head and an obstruction, the second mount member disengages from or moves with respect to the first mount member to prevent breakage of the cutting head. This movement causes the first and second conductive elements to touch, signaling a collision and shutting down one or more internal systems.

Abstract: A device for positioning a part to be cut placed on the bed of a cutting machine has an angular positioner provided, on the one hand, with means for sliding in a plane parallel to the plane of said bed and in a translational guidance direction parallel to the cutting plane of a cutting tool of said cutting machine, and, on the other hand, with means for positioning the part to be cut relative to said plane of said cutting tool in a plurality of special, defined angular positions.

Abstract: The unit makes it possible to form and cut a sheet (14) made of flexible material, such as paper, cardboard or a plastic medium. It comprises several cutting boxes (2) each having a circular knife (5) and at least one guillotine (27). The cutting boxes (2) are fixed adjustably to a guide bar (3) extending transversely to the direction of movement of the sheet (14), and the circular knives (5) are removably fixed to the said cutting boxes. The forward movement of the sheet (14) and the movement of the guillotine or guillotines can be controlled numerically.

Abstract: A system and method for delivering multimedia content to computers over a computer network, such as the Internet, includes a novel media player which may be downloaded onto a user's personal computer. The media player includes a user interface which allows a listener to search an online database of media selections and build a custom playlist of exactly the music selections desired by the listener. The multimedia content delivery system delivers advertisements which remain visible on a user's computer display screen at all times when the application is open, for example, while music selections are being delivered to the user. The advertisements are displayed in a window which always remains on a topmost level of windows on the user's computer display screen, even if the user is executing one or more other programs with the computer.

Abstract: An output shaft is connected to a piston rod of a fluid pressure-driven linear cylinder through a converting mechanism for converting linear thrust of the piston rod into rotational torque and converting operation of the converting mechanism is controlled by operation setting means having a cam groove and a cam follower to thereby causing the output shaft to carry out linear motion and swinging rotation. A driving speed of the piston can be changed by adjusting fluid pressure acting on the piston in a linear motion area and a swinging area of the output shaft respectively.

Abstract: A working cylinder (A) having at least one working chamber (6, 7) defined by the cylinder barrel (1), at least one of the end sections (2, 3) and a piston (4), at least one supply port (9a, 9b) and a exhaust port (12a, 12b) for the working medium. The exhaust port (12a, 12b) has a valve (13a, 13b) that may be regulated by the pressure of the working medium, which is applied at the supply port (9a, 9b) in order to obtain a smaller dimension of at least the valve and to better utilize the already existing space, specifically within the cylinder, and to better and more efficiently adjust the output capacity of the individual elements. A valve (V), particularly a switch valve (W) of a rocker valve design has therefore at least one inlet (16) and at least one outlet (17a, 17b) for the working medium, as wells as at least one control port (18).

Abstract: A sensor mountable within a hydraulic cylinder provides a precision signal indicative of the position of the piston. The sensor includes a flexible connector attached between the cylinder piston and a converting element for sensing the piston displacement. The converting element comprises a pick-up spool, under tension, coupled to the other end of the connector and rotatable about an axis. A lead screw engages threads on the spool, and translates linearly when the spool rotates. A non-contacting electromechanical transducer senses the position of the lead screw, and provides an output signal proportional to the motion or position of the movable element. The transducer may be an LVDT or other transducer. A high-pressure seal assembly provides an electrical path between the sensor and an external connector. A piston stop prevents the piston from damaging the sensor.

Abstract: A cylinder tube of a cylinder has an outer periphery, as taken in the circumferential direction thereof but excepting the upright surface thereof, comprising: surfaces curved convexly outward, and first to third chamfered portions, and a casing of a position detecting sensor to be mounted on the cylinder has an outer periphery formed of surfaces curved convexly outward and a chamfered portion, thereby it is possible to prevent a liquid from being trapped on the outer surface for avoiding the sanitary problem.

Abstract: Protective tube for a piston-cylinder assembly of the type including a piston rod located with freedom of axial movement in a cylinder, the rod also having a section which extends outside the cylinder. A retaining element for the protective tube is attached to the piston rod, which retaining element includes a multi-part connecting ring, the parts of which are installed in the radial direction toward the piston rod and are operatively connected to it. The protective tube is connected to the connecting ring parts so that these parts come together to form a connecting ring which is braced at least in the radial direction.

Abstract: The invention provides a rotary actuator having a cushion mechanism for stopping a vane at a rotational terminal end position in a cushioning manner. The cushion mechanism has a first opening for discharging an exhaust air pressed out from a cylinder hole by a rotating vane to an external portion without limiting a flow amount, a second opening for discharging the exhaust air to the external portion in a state of limiting a flow amount and a flow amount adjusting mechanism for limiting a flow amount, the flow amount adjusting mechanism being connected to the second opening, wherein the first opening is provided at a position sealed by the vane before the vane of a hole surface in the cylinder hole reaches a rotational terminal end position, and the second opening is provided at a position which is not sealed by the vane after the vane reaches the rotational terminal end position.

Abstract: A vacuum cleaner having a dirt collecting system including a latch to seal a positively pressurized dirt cup. The latch also serves to secure the dirt cup to the cleaner housing when in the closed position. The dirt cup is formed with a first dirt collecting chamber and a second dirt collecting chamber separated by an apertured wall. An inlet opening is formed in the dirt cup and communicates with the first dirt collecting chamber for inputting a stream of dirt laden air into the first dirt collecting chamber. An exhaust opening is formed in the second dirt collecting chamber for allowing the filtered air stream to exit the dirt cup. The aperture wall includes a pre-filter for filtering coarse particles from a stream of dirt laden and depositing the coarse particles in the first dirt collecting chamber. A filter member is positioned within the second dirt collecting chamber and communicates with the exhaust port.

Abstract: An arrangement for indicating the calcification status of flow heaters, particularly in espresso machines, with the flow heater having a cold-water inlet line and a hot-water outflow line, and which is intended to precisely indicate the calcification status, yet have an uncomplicated design. For this purpose, a differential-pressure fluid gauge (9) is provided, with the gauge having two pressure chambers (11, 12) separated by a diaphragm, with one of the pressure chambers (11) being in a fluid-conducting connection with the cold-water inlet line (4) and the other pressure chamber (12) being in a fluid-conducting connection with the hot-water outflow (5). The diaphragm acted upon by the pressure difference between the two chambers (11, 12) is coupled to indicator elements.

Abstract: A device for preparing beverages of the type having a closed compartment, an open compartment, an ascension pipe connecting the two compartments and a location for a filtering device between the ascension pipe and the open compartment. The closed compartment has a bottom that has at least a first and a second area which are at different levels and has a member for separating the two areas. The first area is larger than the second area, is heated, and is at a higher level than the second level and than the end of the ascension pipe. The second, smaller area is unheated and is located near the ascension pipe, but at a level that is below the end of the ascension pipe. In one embodiment the separating member is a rim and in a second embodiment the separating member is an inclined bottom.

Abstract: A cooking appliance having an upper cooking unit pivotally mounted on a lower cooking unit for rotation substantially about a horizontal axis into three different positions, a first position in which the upper cooking unit is on top of the lower cooking unit to form a contact grill, a second position in which the upper cooking unit is substantially horizontally oriented with and parallel to the lower cooking unit to form therewith a double grooved griddle, and a third, generally upright, position intermediate the first and second positions to provide access to the lower cooking plate when the appliance is being used as a contact grill. The cooking plates have elongate grooves which are generally parallel to an axis of the hinge that connects the upper and lower cooking units together and which grooves increase in depth from one side of the cooking appliance to the other for carrying liquid cooking byproducts away from the food being cooked.

Abstract: Calender that includes a stand, an upper roll, a lower roll, and at least two center rolls arranged between the upper and the lower rolls. The calender also includes at least two cylinders, where the at least two center rolls are supported on the stand by the at least two cylinders. Each of the at least two cylinders include a discharge path that is controlled over more than ¾ of a piston stroke for lowering the at least two center rolls.

Abstract: Squeegee device for applying printing medium to a substrate, interacting with a squeegee element which is made at least partially from a magnetizable material and can be moved between an operating position and an at-rest position, which squeegee device comprises a support frame for delimiting an operating space, inside which the operating position of the squeegee element is located, and magnetic means which are provided on the support frame for generating a magnetic field at the location of a designated bearing-wall part of the support frame in order to pull the squeegee element onto the bearing-wall part in the at-rest position, in which device switching means are provided, which interact with the magnetic means in order to apply the magnetic field at the location of the bearing-wall part in a switched-on position and to substantially eliminate the magnetic field at the location of the bearing-wall part in a switched-off position.

Abstract: A printing-material transport system for a printing machine, having at least one printing-material guide surface and a device for producing an air cushion between the guide surface and the printing material, comprising at least one sensor arrangement for registering the spaced distance between the printing material and the guide surface, and a control device for controlling the thickness of the air cushion, based upon the registered distance, so that the spaced distance registered by the sensor arrangement comes to lie within a desired range.

Abstract: A rotary printing press control method receiving a drive reference from a master control section, generating a phase correction based on dividing a length between a printing unit and a folding unit by an outer peripheral length of a printing cylinder of the printing unit, generating a drive reference speed signal based on the drive reference, generating a corrected drive reference phase signal obtained by correcting a drive reference phase based on the drive reference with the phase correction, generating a feedback speed signal and a feedback phase signal based on the operating condition of the printing unit, generating a phase difference signal based on a phase difference between the corrected drive reference phase and the feedback phase signal, and correcting the drive reference speed signal and the feedback speed signal to control a drive for the printing unit.

Abstract: A sheet-fed printing press includes stationary guide means for guiding said control cams in the axial direction of the turn-over drum, switching cam followers respectively provided on the control cams in such a manner as to protrude radially outwardly therefrom, sliders respectively forming therein camming recesses to be respectively engaged with said switching cam followers, and a slider driving means for reciprocatingly driving the sliders in such a manner as to enable the switching cam followers to reciprocatingly travel in the axial direction of the turn-over drum. The switching cam followers each travel from a first end to a second end of a corresponding one of said camming recesses along the longitudinal axis thereof for switching to the both-side printing operation, and each travel from said second end to said first end of said corresponding one of said camming recesses along the longitudinal axis thereof for switching to the single-side printing operation.

Abstract: A printing system includes an ink-amount control unit for controlling the amount of ink to be supplied to a printing press based upon an image area rate contained in a pre-press data, and at least one ink-amount calculation unit for calculating the image area rate. The ink-amount control unit is connected to the at least one ink-amount calculation unit on a network.