Abstract: The invention relates to a recoil impulse generator for a weapon simulator comprising a force storage element and an impulse mass that can be moved and that is moved from a stressed to an unstressed position with a triggering element is actuated in order to simulate a recoil impulse. The recoil impulse generator comprises a drive that drives a spindle uninterruptedly during a shot sequence simulating several shots; a coupling that is connected to the impulse mass and to the force storage element and that engages in the spindle in an engaged state and that is moved along the spindle by means of rotation of the spindle in order to bring the impulse mass into the stressed position again the force applied by the force storage element; a disengaging means that switches the coupling to a disengaged state when the impulse mass has reached the stressed position; and an engaging means that switches the coupling to the engaged state when the impulse mass has reached the unstressed position.

Abstract: The invention relates to a recoil impulse generator for a weapon simulator comprising a force storage element and an impulse mass that can be moved and that is moved from a stressed to an unstressed position with a triggering element is actuated in order to simulate a recoil impulse. The recoil impulse generator comprises a drive that drives a spindle uniterruptedly during a shot sequence simulating several shots; a coupling that is connected to the impulse mass and to the force storage element and that engages in the spindle in an engaged state and that is moved along the spindle by means of rotation of the spindle in order to bring the impulse mass into the stressed position again the force applied by the force storage element; a disengaging means that switches the coupling to a disengaged state when the impulse mass has reached the stressed position; and an engaging means that switches the coupling to the engaged state when the impulse mass has reached the unstressed position.

Abstract: A press belt for the formation of a nip between the belt and an opposing surface during processing of a fibrous pulp web, that includes a matrix of an elastomer material, a first layer of reinforcing fibers having a thickness and spacings therebetween, and extending in a direction transverse to a belt run direction, and a second layer of reinforcing fibers having a thickness and spacings therebetween, and extending in the belt run direction, where the thicknesses of the reinforcing fibers of the first layer and the second layer is about 0.5 mm, where the spacings between the reinforcing fibers of the first layer are less than or equal to about 3.0 mm, where the spacings between the reinforcing fibers of the second layer being less than or equal to 2.5 mm, and where the reinforcing fibers of the first layer are separated in a belt thickness direction from the reinforcing fibers of the second layer one layer by a distance of up to about 4 mm.

Abstract: A press belt for the formation of a nip between the belt and an opposing surface during processing of a fibrous pulp web, that includes a matrix of an elastomer material, a first layer of reinforcing fibers having a thickness and spacings therebetween, and extending in a direction transverse to a belt run direction, and a second layer of reinforcing fibers having a thickness and spacings therebetween, and extending in the belt run direction, where the thicknesses of the reinforcing fibers of the first layer and the second layer is about 0.5 mm, where the spacings between the reinforcing fibers of the first layer are less than or equal to about 3.0 mm, where the spacings between the reinforcing fibers of the second layer being less than or equal to 2.5 mm, and where the reinforcing fibers of the first layer are separated in a belt thickness direction from the reinforcing fibers of the second layer one layer by a distance of up to about 4 mm.

Abstract: Press section of a machine for producing a fibrous web and process for pressing a fibrous web. The press section may include at least two shoe press units including at least one press shoe and a revolving flexible press belt, a counterpart face, at least two nips having a length extended in a web travel direction and formed by each at least one press shoe pressing the revolving flexible press belt against the counterpart face. A length of the extended nip may be at least substantially the same as a length of the at least press shoe length, measured in the web travel direction, forming the extended nip and at least one of the shoe press units having press shoe length different from the other shoe press units, whereby various extended nip length are formed.

Abstract: Flexible press sleeve for a press roll for treating a web includes an inside surface including a longitudinal press area adapted to be pressurized with a press shoe by directing pressure radially outward, and a flexible section on at least one end of the press area having a greater flexibility than a flexibility of the press sleeve outside the flexible section, without causing a significant weakening of the press sleeve within the flexible section. A press shoe includes the press roll and a mating roll forming a press opening with the press roll. A method of treating a web includes draining a fibrous pulp web by using the press shoe.

Abstract: A press roller having a stationary carrier and a roll jacket which rotates past the support surface of the stationary carrier. A support element on the carrier, like a shoe, is pressed against the inside circumferential surface of the roll jacket by a pressure space that is beneath and acts upon the support element to press it toward the roller jacket. The support surface is at least partially hydrodynamically lubricated at the support surface of the support element. The support surface has at least one row and perhaps a plurality of rows that extend in the direction of the press roller axis comprised of a plurality of oil feed points which are separated from one another along the roller axis. The oil feed points are supplied at least partially independently of the pressure space. Each oil feed point comprises a throttling bore. One or more distribution channels in the support element deliver oil to the bores or to groups of the bores.