Abstract: Proposed is a support disk base (1) and a support disk for the bearing of a rotor of an open-end spinning apparatus, whereby on the outer circumference of the support disk base (1) a support ring (8) can be installed by force-fit. In accord with the invention, provided on the outer circumference of the support disk base (1) are grooves (3, 4, 5, 6, 7) running in the axial direction. Upon the operation of the support disk with the base (1), the said grooves (3, 4, 5, 6, 7) increase the holding power of a later circumferentially installed support ring against centrifugal forces. Further, a procedure for the manufacture of the basic form of a support disk is provided.

Abstract: In a spinning machine with at least one spinning station possessing a feed drum, driven by a single drive, a disintegrator, a rotor, a withdrawal roll and a spool roll, provisions have been made that the spinning station has an additional single drive respectively for the withdrawal roll and/or the spool roll and/or a paraffin roll. The speed of rotation ratio of the single drives can be preset to specified values.

Abstract: An open-end spinning apparatus has a spin rotor (1) which, by means of its shaft (11) is supported by support plates (4), wherein as an abutment for the axially directed force on the spin rotor (1), an aerostatic axial bearing (6) is provided. The bearing surface (115) of the spin rotor (1) operates together with a bearing plate (63) of the axial bearing (6). The bearing surface (115) or the bearing plate (63) are comprised of a construction material of polyimide. Advantageously, the polyimide is combined with an additive, namely graphite, for instance.

Abstract: The present invention relates to a bearing for an open-end spinning rotor. The latter is driven at its rotor shaft by means of a tangential belt in a predetermined direction and is supported in a nip which is formed by at least two bearing disks capable of being driven by the rotor shaft. A bearing disk (at least one) leads in relation to the drive direction of the tangential belt rotating into the nip, and another bearing disk (at least one) trails in relation to the drive direction of the tangential belt rotating out of the nip. The axis of the bearing disk (at least one) rotating into the nip is at a specified distance from the plane which goes through the rotor shafts of the spinning rotors of several adjoining open-end spinning devices. This distance is being smaller than the distance between the axis of the bearing disk (at least one) rotating out of the nip and the rotor shaft plane.

Abstract: For a bearing arrangement of an open-end spin rotor, which is rotatably set in the “V” between circumferential rims of support disks, one or more of the support disks (14), which bear the open-end spin rotor, has a circumferential cleaning groove (3). The cleaning groove (3) can be a self closing, endless groove, which runs over the contact surface of the support disk (14), wherein it generally does not run parallel to the edges of the support disk (14). Such a meandering groove formulation of the support disk circumference assures that no deposits of impurities can accumulate on the rotor shaft.

Abstract: A supporting disk for a rotor of an open-end spinning machine comprising a hub ring made of metallic material and a support ring made of polymer material affixed to the outer circumferential surface of the hub ring, the outer circumferential surface of the hub ring engaging the inner circumferential surface of the support ring. The support ring extends beyond the hub ring in the axial direction on both sides with an equal projecting length.

Abstract: In an infantry grenade (5) the fragmentation effect is enhanced in that a cup portion (7) of a ductile steel--which serves to receive an explosive charge (9)--has at its periphery in a substantially cylindrical longitudinal portion (25) a pre-notched fragmentation arrangement (28, 29) and in a rounded longitudinal portion (26) ball-type fragmentation portions (32). The entire fragmentation arrangement is enclosed by a plastic shell (17).

Abstract: The present invention relates to a device for the conveying of fibers from an opener roller (31) installed in a fixed opener roller housing (30) to the collection surface (43) of a spinning rotor (4) of an open-end spinning device (1). It is provided with a rotor lid mounted on a swivel pin which receives a fiber feeding channel (6). The fiber feeding channel (6) can be brought into contact with a first contact surface (62) surrounding its inlet opening (60) against a second contact surface (35) located on the opener roller housing. It extends until directly in front of the collection surface of the spinning rotor (4). A lid extension extends through an opening in the spinning rotor (4) into the spinning rotor. In the lid extension the fiber feeding channel (6) lets out into the spinning rotor (4). The contact surfaces are essentially tangential to the circumferential surface of the opener roller and parallel to the opening of the spinning rotor or are inclined towards the opening of the spinning rotor.

Abstract: For an aerostatic bearing (6) of an open-end spinning rotor, in which the bearing material consists of a wearable material, a wear indicator (9) is provided on the bearing plate (601) of the axial bearing (6) so that the state of wear of the axial bearing (6) can be checked by simple optical inspection. The wear indicator (9) can be integrated into the running surface (610) and be made e.g. in the form of a blind bore (91), so that the presence of the bore indicates that the wear lies still within the admissible limits.

Abstract: An open-end spinning rotor for a textile machine includes a shaft and a supporting part received on one end of the shaft. A rotor pot is mounted on the shaft and is received by the supporting part. A coupling is operably configured between the rotor pot and the supporting part. The coupling comprises a first part configured on the rotor pot and a second part configured on the supporting part. An elastic element is incorporated with at least one of the first or second parts of the coupling to attenuate oscillations and vibrations which would be transmitted through the coupling.

Abstract: An aerostatic axial bearing (6) of an open-end spinning machine in which the bearing plate (601) of the axial bearing (6) is made of a permeable material, has a bearing plate (601) provided with one or several air channels (605), the task of which is to convey the air closer to the bearing gap (630) before it goes through the permeable bearing plate material. Thereby, the utilization of an additional choke can be avoided. Furthermore the mechanical properties of the holder bearing plate (601) are improved.

Abstract: An open-end spinning device with a spinning rotor is supported by a shaft in a bearing arrangement. An axially rearwardly directed force is exerted on the rotor shaft in operation of the spinning device. The end of the rotor shaft bears against an aerostatic bearing which includes a bearing surface oppositely facing the end of the rotor shaft made of a carbon material. The rotor shaft has a bearing surface defined on the end thereof opposite the aerostatic bearing which is made at least in part of a carbide material.

Abstract: An opener device in an open-end spinning machine includes an opener roller driven by a drive disk and a drive belt. A tension roller is movable between a first position wherein it exerts a driving tension force on the drive belt, and a second position wherein the tension roller exerts a lesser tension on the drive belt so that the drive belt can be removed from the device. A braking device includes a movable actuating element and a braking belt contacting member, such as a bolt, associated with the actuating element so as to be moved thereby. The actuating element and braking belt contacting member are movable between a first position wherein the braking belt contacting member is at a distance from the drive belt and a second position wherein the braking belt contacting member comes into the contact with the drive belt forcing the belt away from the drive disk.

Abstract: An open-end spinning device has a spinning rotor with a rotor pot defining a fiber collection groove therein. A rotor shaft is provided having a diameter between 5.5 mm and 9 mm. Pairs of rotatable supporting rings supported on axles define a nip therebetween. The rotor shaft is rotatably supported in the nip. The supporting rings have a diameter between 62 mm and 82 mm. A thrust imparting device imparts an axial thrust to the rotor shaft in the direction opposite the rotor pot. A non-contacting axial bearing is disposed opposite the free end of the rotor shaft for absorbing the axial thrust without contacting the rotor shaft. The axial thrust imparting device generates an axial thrust between 1N and 7N on the rotor shaft. A driving device contacts the rotor shaft for rotatably driving the rotor and has a contact pressure with the rotor shaft from between 8N and 39N.

Abstract: The spinning rotor of an open-end spinning device is supported by means of a rotor shaft in the nip of at least one pair of supporting disks and can be driven by means of a tangential belt. A change-over device with a pressure roller is provided to press the tangential belt against the rotor shaft and a rotor brake which can be brought into action alternatively is provided. The change-over device is connected to a control lever which can be controlled as a function of the position of an actuator connected to a spinning station cover. The control lever is provided with an actuating arm. By opening the spinning station cover completely, a sufficient clearance can be produced between the actuator and the control lever so that the rotor brake can be deactivated through action exerted on the actuating arm of the control lever by means of the change-over lever on the one hand without allowing on the other hand the pressure roller to be yet actuated.

Abstract: To attach spinning rotors to their rotor shaft, the rotor shaft is provided with a stop against which the collar for the seating of the spinning rotor bears. The stop can be made in one piece with the rotor shaft, and be in the form of a micro-stop against which the collar bears in an axial direction.

Abstract: A winding device, in particular for conical bobbins, including; a rotatable friction roller which rotates a bobbin through friction. The friction roller consists of several rotatable elements installed next to each other which are mounted on a shaft. One of the elements is connected non-rotatably with the shaft, the other elements of the friction roller are freely rotatable on the shaft and are connected to each other by a differential gear transmission. The differential gear transmission is in the form of a friction wheel transmission. The axes of the friction wheel transmission are at a perpendicular to the shaft.

Abstract: In an open-end spinning device with a spinning rotor whose shaft bears axially upon the ball of a step bearing, said step bearing is designed for the attenuation of axial oscillations and shocks of the spinning rotor. The bearing includes an elongated housing provided with a ball supporting member and a resilient member.

Abstract: A practice projectile without an explosive for firing against a practice target with large-calibered weapons, wherein the projectile incorporates a projectile body which is in the configuration of a cylinder and which possesses a conical nose cone. The projectile includes a nose cone which is constructed in the shape of a truncated cone having a flat leading end surface with a diameter of about 0.08 to 0.1 that of the projectile caliber, wherein the nose cone forms a sharp contact edge with the cylinder of the projectile; a ratio in the length of the nose cone to that of the cylinder of approximately 1:1.+-.5%; a location of the center of gravity of 3 to 3.5 times the projectile caliber, measured commencing from the leading end surface; and a ratio of 4.0 to 7.0 for the moments of inertia between the transverse and longitudinal moments.

Abstract: Equipment for a gun loader, which incorporates a coil connected through the intermediary of a wire to a plotting apparatus, and through the utilization of which it is possible to set the fuze of an article of ammunition from the equipment of a gun layer or aimer. Inventively, the above-mentioned object is readily attained in that the coil is fastened at such a first location on an equipment which is worn by the gun loader, with which the ammunition fuze comes into contact during the handling of the ammunition during the loading sequence; in that the plotting apparatus is fastened at such a second location on the equipment which is easily viewable by the gun loader; and that between the plotting apparatus and the equipment worn by the gun layer there is provided either a wire-connected or wireless signal transmitting path.