Abstract: A method for computer-aided sheet running control in a sheet-fed printing machine includes, during a printing operation, using a measuring sensor to detect a printed sheet in the printing machine and using an activation sensor to initiate measuring performed by the measuring sensor by emitting an activation signal. The activation sensor is mechanically fixedly installed without adjustment, and temporal deviations of the activation signal are determined and compensated. A system for computer-aided sheet running control in a sheet-fed printing machine is also provided.

Abstract: A method for computer-aided sheet running control in a sheet-fed printing machine includes, during a printing operation, using a measuring sensor to detect a printed sheet in the printing machine and using an activation sensor to initiate measuring performed by the measuring sensor by emitting an activation signal. The activation sensor is mechanically fixedly installed without adjustment, and temporal deviations of the activation signal are determined and compensated. A system for computer-aided sheet running control in a sheet-fed printing machine is also provided.

Abstract: The invention describes a temperature sensor for a resistance thermometer comprising an electric measuring resistor (3) the resistance material of which consists either of a ceramic material or of a metallic resistance material in combination with a ceramic or a mineral carrier, a protective tube (2) comprising a closed tip (2b) and a rear end that provides an access to the inner space of the protective tube (2) and that contains the measuring resistor (3) closely adjacent the closed tip (2b) of the protective tube (2), at least one supply line (5) that is brought out through the rear end of the protective tube (2), and an electrically insulating filler (6) based on a ceramic or a mineral material that fills the space between the protective tube (2) on the one side and the measuring resistor (3) and its at least one supply line (4, 5) on the other side. It is provided according to the invention that the packing density of the filler (6) has a gradient in lengthwise direction of the protective tube (2).

Abstract: An apparatus for conveying sheets through a printing machine allows continuous monitoring of the position of a sheet with regard to a guide element over a long time period. There is provided a circulating conveyor element with grippers in which the sheet is held at a leading edge. A device for setting the position of the sheet can adjust the position with regard to a desired position. A measuring configuration measures the position and the presence of the sheet. A control device is connected to the device for setting the position and to the measuring configuration. The measuring configuration is mounted so as to circulate with the conveyor element.

Abstract: The invention describes a temperature sensor for a resistance thermometer comprising an electric measuring resistor (3) the resistance material of which consists either of a ceramic material or of a metallic resistance material in combination with a ceramic or a mineral carrier, a protective tube (2) comprising a closed tip (2b) and a rear end that provides an access to the inner space of the protective tube (2) and that contains the measuring resistor (3) closely adjacent the closed tip (2b) of the protective tube (2), at least one supply line (5) that is brought out through the rear end of the protective tube (2), and an electrically insulating filler (6) based on a ceramic or a mineral material that fills the space between the protective tube (2) on the one side and the measuring resistor (3) and its at least one supply line (4, 5) on the other side. It is provided according to the invention that the packing density of the filler (6) has a gradient in lengthwise direction of the protective tube (2).

Abstract: An apparatus for conveying sheets through a printing machine allows continuous monitoring of the position of a sheet with regard to a guide element over a long time period. There is provided a circulating conveyor element with grippers in which the sheet is held at a leading edge. A device for setting the position of the sheet can adjust the position with regard to a desired position. A measuring configuration measures the position and the presence of the sheet. A control device is connected to the device for setting the position and to the measuring configuration. The measuring configuration is mounted so as to circulate with the conveyor element.

Abstract: A novel damping control method permits improved reliability and higher accuracy when registering scumming during printing with an offset press. Signals are obtained by at least one sensor aimed at a revolving printing form cylinder. The signals are processed in a control device, actuating signals for a dampening solution metering device are produced, and the dampening solution is metered in accordance with the actuating signals by a dampening solution applicator roll in rolling contact with the surface of the printing form. The sensor provides a signal which reproduces an actual value of a width of an ink stripe that is induced by the process and located in the circumferential direction of the printing form cylinder. The stripe is formed in the printing image-free region of the printing form immediately after the trailing edge of the channel accommodating the edges of the printing form.

Abstract: The position of sheets in a printing press is measured. A problem in transporting sheets through the printing press is how to guarantee the correct orientation and lay of the sheets, which must be guaranteed particularly in the printing operation. There is provided a device for precisely determining and correcting the positions of sheets in printing presses. Margin regions of a sheet are respectively imaged, projection data are transmitted to a computing unit, and the position of the sheet is calculated with the aid of the projection data by way of an image recognition algorithm. Furthermore, the computed positions of the sheet are compared to positions which are stored in the computing unit, and from the comparison, position deviations are computed, which are transmitted to the printing press and corrected by way of a sheet registration device.

Abstract: A novel damping control method permits improved reliability and higher accuracy when registering scumming during printing with an offset press. Signals are obtained by at least one sensor aimed at a revolving printing form cylinder. The signals are processed in a control device, actuating signals for a dampening solution metering device are produced, and the dampening solution is metered in accordance with the actuating signals by a dampening solution applicator roll in rolling contact with the surface of the printing form. The sensor provides a signal which reproduces an actual value of a width of an ink stripe that is induced by the process and located in the circumferential direction of the printing form cylinder. The stripe is formed in the printing image-free region of the printing form immediately after the trailing edge of the channel accommodating the edges of the printing form.

Abstract: A sheathed-element glow plug including a glow plug body and a heating rod inside the glow plug body, and a heating element. Optionally, the glow plug includes a control element, embedded in insulating material, associated with said heating element which is positioned within the heating rod. The heating element, at the end facing the electrical connection, has an internal pole, with internal pole lead-in, for connection to a power source; while, the end of said heating element facing the combustion chamber is connected to the tip of the heating rod. The glow plug also includes a contact tube which is pushed onto the end region of the heating rod facing the electrical connection in order to extend the heating rod in the direction of the electrical connection to define a hollow space between the contact tube and the internal pole, internal pole lead-in, which is filled with insulating material.

Abstract: Rod glow plug with a plug body and an internal heating rod. Between the heating rod (1) and the plug body (7) in the area of a seal seat of the rod glow plug, an electrically insulating shaped part (3) securely adjoins the heating rod (1) supporting the combustion space-side end (7a) of the plug body (7), electrically insulated from the heating rod (1).

Abstract: A sheathed-element glow plug including a glow plug body and a heating rod inside the glow plug body, and a heating element. Optionally, the glow plug includes a control element, embedded in insulating material, associated with said heating element which is positioned within the heating rod. The heating element, at the end facing the electrical connection, has an internal pole, with internal pole lead-in, for connection to a power source; while, the end of said heating element facing the combustion chamber is connected to the tip of the heating rod. The glow plug also includes a contact tube which is pushed onto the end region of the heating rod facing the electrical connection in order to extend the heating rod in the direction of the electrical connection to define a hollow space between the contact tube and the internal pole, internal pole lead-in, which is filled with insulating material.

Abstract: The position of sheets in a printing press is measured. A problem in transporting sheets through the printing press is how to guarantee the correct orientation and lay of the sheets, which must be guaranteed particularly in the printing operation. There is provided a device for precisely determining and correcting the positions of sheets in printing presses. Margin regions of a sheet are respectively imaged, projection data are transmitted to a computing unit, and the position of the sheet is calculated with the aid of the projection data by way of an image recognition algorithm. Furthermore, the computed positions of the sheet are compared to positions which are stored in the computing unit, and from the comparison, position deviations are computed, which are transmitted to the printing press and corrected by way of a sheet registration device.

Abstract: Rod glow plug with a plug body and an internal heating rod. Between the heating rod (1) and the plug body (7) in the area of a seal seat of the rod glow plug, an electrically insulating shaped part (3) securely adjoins the heating rod (1) supporting the combustion space-side end (7a) of the plug body (7), electrically insulated from the heating rod (1).

Abstract: Overshooting-sheet safety device for sheet deliveries of printing presses includes a triggering member responsive to overshooting sheets for triggering a stoppage of the printing press, the triggering member extending across the width of an oncoming sheet and being mounted in bearings at both sides thereof, the triggering member being deflectable perpendicularly to a line connecting said bearings for triggering a stoppage of the printing press.

Abstract: In a flame glow plug for a Diesel engine with an insert structure mounted on the plug body for the supply of fuel thereto, wherein the plug body includes in a vaporizing tube, a heating rod arranged in spaced relationship to the vaporizing tube such that an annular gap remains in which a vaporizing sieve is disposed and the heating rod extends axially beyond the vaporizing tube and is protected there by a flame tube firmly mounted on the plug and projecting into the intake airflow path when the glow plug is installed in an engine, the flame tube has circumferentially spaced air inlet openings and the vaporizing tube extends to the air inlet openings of the flame tube, the vaporizing tube further has a collar forming a narrow annular gap around the heating rod for supporting the vaporizing sieve and preventing flame backflashing through the gap and at least one row of openings arranged circumferentially below the collar.

Abstract: Device for controlling an individual separation of sheets incorrectly separated from a sheet pile, including a lifting device for lifting an uppermost sheet of the sheet pile so as to feed it to a machine associated therewith, includes a structure having parts of a contactless measuring arrangement insertable between the lifted sheet and the remainder of the sheet pile for measuring the thickness of the lifted sheet, and a circuit arrangement connected to the lifting device and the measuring arrangement for evaluating signals of the measuring arrangement regarding a presence of double or multiple sheets and generating a switching signal for starting or stopping the operation of the lifting device, the structure being formed as a bifurcated contact foot having two legs and a scanning gap defined therebetween, each of the legs, respectively, including parts of the measuring arrangement for measuring the sheet thickness and, in a measuring position of the measuring arrangement, one of the legs being inserted bet

Abstract: A method and apparatus for the alignment of paper stacks in a printing press provides essentially uninterupted printing through the transfer of supply of sheets of paper from a first stack of papers to a second stack of papers by reducing mechanical strain in the control and operation of the sheet feeder of the printing press.

Abstract: Protective system of a pile lifting device for sheet piles in a sheet-fed printing machine, wherein a pile support board is liftable and lowerable in guides of a frame by a motorized drive of a lifting unit having a fast-speed and a slower speed operating condition for both the lifting and lowering, the pile support board and a sheet pile supported thereby, respectively, being drivable by the motorized drive to a position switch and into a collision region wherein it can collide with another machine part, including a control member operative between the pile support board or the sheet pile supported thereby, on one hand, and a machine part present in the collision region, on the other hand, the control member being articulatingly fastened in vicinity of the position switch or to the machine part in the collision region, and having switch elements arranged in at least two switching stages for controlling the lifting unit drive and being switchable via contact surfaces on the pile support board, a first plurali

Abstract: A method and apparatus for the alignment of paper stacks in a printing press provides essentially uninterrupted printing through the transfer of supply of sheets of paper from a first stack of papers to a second stack of papers by reducing mechanical strain in the control and operation of the sheet feeder of the printing press.