Abstract: The invention concerns a measuring device for measuring the diameter of a rotationally symmetric body, for instance a roll, with a measuring jaw that wraps around the peripheral surface of the body and features two arms, and with two styli of which each is arranged on the free end of an arm for scanning the peripheral surface. The invention is characterized by the following features: the arms have an essentially straight-line design and the arms are constructed of rails which form a parallelogram with each other and permit swiveling in the sense of setting or retracting the respective stylus on or from the peripheral surface.

Abstract: In a universal joint for a drive shaft or Cardan shaft each yoke or fork has two arms or bosses which are connected to the pins of the central spider or cross. At least one or both of the yoke arms or fork arms is removable from the remainder of the yoke or fork at parting lines spaced around tie fork away from the fork arm or boss which receives the pin therein. Each yoke or fork includes a hub extending away from the spider or cross to receive the drive shaft. In some embodiments, the removable are of the fork terminates in a flange which is separably clamped to the end of the hub for torque transmission between them. In another embodiment, the hub is an integral rearward extension fromt he respective fork arm and the hub is comprised of a tube half. With two such tube halves, each half is attached to one of the two arms of the york or fork, and clamping rings hold the tube parts and thus the yoke arms together.

Abstract: A press roll for a web includes a support body which is either stationary or rotatable and a press shell which is rotatable over the support body and against a mating roll. A respective shell support element or disc is disposed axially outward of both ends of the support body and the support element has an axially outward, face side. The flexible, liquid impervious endless belt press shell has lateral edge zones. Each edge zone has a respective plurality of outwardly projecting tongues and has cutouts between neighboring tongues. The edge zone is turned radially inward and its tongues are each respectively mounted on a holding element projecting from the face side of the shell support element. Centering elements also ono the face side of the shell support element are placed each for extending into and contacting the base of the cutouts between neighboring tongues for positioning the tongues.

Abstract: According to the invention, a safety coupling, the torque transmission of which takes place as a result of the radial tension of a clamping sleeve which is under high pressure, has a release valve. During a rotation of the shaft relative to the hub, caused by overloading, the release valve is opened, so that the torque transmission is interrupted as a result of a reduction of the pressure in the clamping sleeve. After rotation, the tappet of the release valve is drawn into the release valve, so that the safety coupling can be put into operation again as a result of a pressure buildup, without any destruction or wear occurring.

Abstract: Apparatus for stabilizing the trailing end of a web that is to be spliced to the leading end of a new web includes a knife for severing the old web and for creating a tail that must be stabilized, a suction box over which the trailing end passes, which provides stability to the trailing end, a pressure roll movable to move the cut trailing end of the old web against the leading end of the new web and a leaf-spring-like extension extending downstream of the suction box to the connection point or splice point between the webs. The extension is deflectable with the pressure roll and the extension carries the vacuum of the suction box further downstream and also supports the trailing end of the cut old web. The extension is cantilevered to the downstream side of the suction box.

Abstract: The bearing segment consists of individual lamella (2) that are parallel to the bearing axis and can be forced on the trunnion of the workpiece by means of hydraulic fluid contained in a piston space. This makes it possible to cover a certain diameter range of the trunnions of the workpieces with a single bearing segment, and modified bearing segments are required only in keeping with the jumps in bearing diameters.

Abstract: A long-nip press roll and a mating roll form an areal press nip with each other. The long-nip press roll has a flexible tubular press shell which is mounted by means of two support disks on a stationary support member which extends through the inside of the press shell. Within a hydraulic pressure chamber provided on the supporting member is a radially displaceable press shoe which can press the press shell against the mating roll. Support member, pressure chamber and mating roll are arranged symmetrically relative to a press plane. The slide surface of the press shoe which contacts the press shell is arranged offset with respect to the press plane in the direction opposite the direction of travel of the press shell. The axis of rotation of the press shell and its two support disks is also arranged offset out of the press plane in the direction opposite the direction of travel of the press shell.

Abstract: A long nip press roll for removing water from a traveling fiber web. A rigid support beam has at least one recess in its periphery for receiving a radially movable hydraulically operated press shoe. A flexible tubular press shell is wrapped around the support beam and the press shoe. The concave outer surface of the press shoe presses the press shell against a backing roll for pressing upon a fiber web against a felt belt passing through the nip. The press shell has a smooth outer surface in contact with the web. At its outlet side from the press nip, the press shoe has a convexly curved guide surface over which the press shell and the paper web travel together and that guide surface is also wrapped for a distance by the felt belt. This separates the web from the felt belt and the web travels around on the press shell. A ledge inside the press shell and/or a removal roll at the outside of the press shell separate the web from the outside of the press shell.

Abstract: A long nip press roll includes a stationary support member and a flexible, tubular, inflatable press shell which is supported to rotate around the support member by axially separated support discs rotatable around the support member. A radially displaceable press shoe is supported on the support member for pressing outward against the press shell against a counter roll in the press plane. To enable the press roll to be used in a press where it is disposed either beneath or above the counter roll, all of the internal lines in the support member, e.g. those for the supply and discharge of pressure oil, lubricant and cooling oil and press shell pressurizing air, include two sets of coupling for coupling them to external lines, a respective set of the couplings being located at each axial end of the press roll. During assembly, one of the sets of couplings at one end is connected to external lines, and the other set of couplings is closed.

Abstract: A press roll of adjustable sag has a roll shell which is rotatable around a stationary yoke that is supported on a pedestal. Each end of the roll shell terminates in a journal that is supported by a self aligning bearing disposed within a bearing housing. The bearing housing and the supported end of the roll shell is displaceable relative to the yoke transversely to the axis of the press roll and in the press plane of the press roll and the mating roll. Hydraulic support pistons on the yoke supply support for the press roll shell against the mating roll. The distances between the bearings of the roll shell and of the mating roll are approximately equal. To exert additional bending forces on the ends of the roll shell, a double acting hydraulic force producing piston is supported in the pedestal and is connected with the guide part in which the self aligning bearings are supported for displacing the guide part, for displacing the bearings, for displacing the end of the roll shell, generally in the press plane.

Abstract: A paper machine includes a double-felt (or single-felt) wet press. Two press elements, for instance two rolls, whose axes lie in a press plane, form a press nip with each other. Two endless felt belts, and between them the paper web from which the water is to be removed, pass through said nip. Beyond the press nip the paper web travels, free of the felt belts, to the next station of the paper machine. Each of the two felt belts travels beyond the press nip over a guide element, which can be a guide roll or a nonrotating deflector, whose position is displaceable parallel to the press plane. The arrangement is operated as follows: The angle between the paper web and the wetter felt is set to a smaller value during the initial licking-up process than during the subsequent continuous operation. On the other hand, the angle between the paper web and the drier felt is set to a larger value during the initial licking-up process than during the subsequent continuous operation.

Abstract: This device, preferably formed as a dual paper machine, has according to a preferred embodiment two endless screens, mainly a lower screen (21) and an upper screen (22). The lower screen (21), on which is formed a paper web, and the upper screen (22) are moved together in the lower part of a dehydration cylinder (25) arranged in the upper screen. Both screens (21,22) are unrolled from the rising lower quadrant of said cylinder (25) and are laid on the upper part of the support cylinder (26) arranged in the lower screen (21). The bandage of the dehydration cylinder (25) has hollows which absorb water from the screens along their arcs of contact with the cylinder and which project the water towards the inside of the loop formed by the screens of the cylinder. In the feed direction of the screens and downstream of the support cylinder (26), there is arranged a receiving container (36) for the projected water.

Abstract: The smoothing device has a support beam. The beam is compensated along its line of flexure by a support member arranged centrally in it and which corrects the flexure of the support beam, which is due to the effect of gravity thereon or to a lesser extent due to any counter acting force of the doctor supported on the beam. A tube surrounds and is spaced radially out from the support member. A plurality of hydraulically or pneumatically actuated pressing elements are disposed between the tube and inside of the beam and extend over the length of the beam and are pressurized to support the beam.

Abstract: A coating device for coating moving material webs running over a backing roll has a front wall, coating element, and side seals cooperating to provide a sealed application space for the material web near the backing roll, which application space is preferably at a pressure above atmospheric pressure and has a coating mixture flowing therein from a chamber. A baffle connected to the front wall provides a run-out gap therebetween and cooperates with the backing roll to provide a hydrodynamic pressure gap at the material web run-in side, such that coating mixture from run-out gap is entrained by the speed of the material web for reintroduction to application space through hydrodynamic pressure gap.

Abstract: On the cooling roll with outer roll shell 7 and inner, preforated roll shell 8 of an inner body 6, the inner body features endways and centrally at least one distributing component 22. Extending through this distributing component are channels 19 that are parallel with the roll axis, for one, and interposed radial channels 28 which, for one, serve the connection of an endwise space 14 that is located between an axial end of the inner body and the hollow roll end with one of the coaxial supply or drain channels of the journal 20 and, for another, serve the connection of the interior space 3 of the inner body 6 with one of the other coaxial supply and drain channels 25, 26 or vice versa.

Abstract: The head box for a paper making machine joins the main distribution channel with an outlet nozzle that extends over the width of the machine. The head box has a plurality of linear, tubular flow channels extending from the distribution channel to the outlet nozzle. Just before entry into the outlet nozzle, each channel widens continuously, forming a continuous diffuser communicating into the outlet nozzle. In each tubular flow channel, a respective channel piece of reduced inside diameter is provided at or just upstream of the continuous diffuser. The entrance into the channel piece is developed as a step-like reduction in cross-section of the tubular channel, as compared with the cross-section of the tubular channel just upstream.

Abstract: A universal joint for a highly stressed cardan shaft possesses, in order to increase the rigidity and load-bearing capacity of the bearings in the trunnion cross bearing, a tie-rod which extends through a central longitudinal hole through two opposing trunnions. The bearing covers of the two opposing bearing eyes are fixed to the tie-rod under pre-stress and bear from outside against the outer ring of the radial bearing. The bearing covers carry tracks on the inner sides for the axial bearing arranged in the region of the trunnion end face. The transverse forces are thus passed to the respectively opposite joint yoke half, so that no deformation arises to spray the joint yoke. As a result the formation of axial play is prevented, and all bearings are uniformly stressed, as a result of which greater load-bearing capacity and longer service life are obtained.

Abstract: The winding machine is provided with a drum, across which a web to be wound is guided, with a lowering table for taking up an ejection of a winding roll from the machine and with a device for severing the winding roll from the web. The severing device is embedded along the drum-near edge area of a plate of the lowering table supporting the winding roll. To move the severing device between a rest position and an operating position in which it moves out of the lowering table, an actuating device is provided.

Abstract: The present invention is an air guide box. The box has a guide wall intended to lay adjacent to a running web. The guide wall has an air suction channel and a discharge opening. A drive jet blows air into the air suction channel to create suction, with the air being expelled through the discharge opening.

Abstract: An intermittently operating unwinding apparatus has a splicing unit with a cross member which is movable against and at right angles to the web expiring from a winding roll. With a separating device positionable against the cross member from the other side of the web, the web is separated by lifting the empty spool mounted in the unwinding apparatus out of its unwinding position. A new parent roll whose web beginning is provided with an application of adhesive is transported by means of a conveyor to the unwinding position and the web beginning positioned relative to the splicing unit. The splicing unit holding the separated web-end at the cross member is radially moveable against the new parent roll, where the web-end meets the beginning of the web and is attached by means of the adhesive. The web length required to lead the web-end to the new roll is made ready by a dancer roller.