Abstract: Systems and methods for determining network topology by implementing the security parameter index (“SPI”) to map network nodes that are behind a network address translation (“NAT”) address are disclosed.

Abstract: Systems and methods for determining network topology by implementing the security parameter index (“SPI”) to map network nodes that are behind a network address translation (“NAT”) address are disclosed.

Abstract: A component for an air jet spinning arrangement, in particular a spindle point, comprises a yarn withdrawal channel having an entry opening for drawing a yarn out of a vortex chamber of the air jet spinning arrangement. The component comprises at least one air outlet opening connected to the yarn withdrawal channel for discharging air from the yarn withdrawal channel during a piecing process. The component may comprise an injector channel for feeding back a yarn end back counter to the withdrawal direction during a piecing process. The injector channel, which is connectable to a compressed air source, can be connected by means of an opening to the yarn withdrawal channel and be positioned opposite the entry opening of the yarn withdrawal channel. The air outlet opening can be connected to the yarn withdrawal channel between the entry opening of the yarn withdrawal channel and the mouth of the injector channel.

Abstract: A spinning position for spinning yard from a fiber structure including a fiber guidance element is disclosed. The fiber guidance element includes a fiber guiding surface having a deflection point located in the interior of the fiber guidance element. The input direction of a fiber structure into the fiber guidance element forms an angle of inclination ? with the fiber guiding surface at the deflection point. The splaying of the outer fibers of the fiber structure is increased and the quality of the yarn is thereby increased. The jamming of the fiber elements lying parallel to the direction of introduction may also be avoided.

Abstract: A system for conditioning algorithms to achieve optimum execution time is disclosed. The system defines a computer programmable framework that can be used to efficiently find a global optimization vector. The system provides a precise execution sequencing of operations in order to achieve a speedy conclusion and a genetic receipt for finding the optimal number of siblings (cluster nodes) for the algorithm. The system defines the genetic function for generating an initial population of solution vectors, a condition number for optimal searching of a single vector, a best fit off-springs selection method, and a diversification function.

Abstract: During a jet spinning method, the rotating fibre ends or the subsequent wound fibres of the spun yarn (70) cause a spinning tension Fs. In tests, a direct correlation has been established between the spinning result and the spinning tension Fs. The aim of the invention therefore is to provide a method for spinning yarn in a jet spinner that permits an ideal spinning tension Fs despite high spinning speeds, thus achieving an optimal spinning result, in particular with regard to the yarn quality. According to the invention, a jet spinner is operated with a spinning tension Fs<20 cN by means of a configuration of spinning box elements.

Abstract: The invention relates to a spinning position (6), on a jet spinner, comprising a fibre guidance element (3). According to the invention, the splaying of the outer fibres of the fibre composite (1) for introduction, may be increased, and hence the quality of the yarn increased and also jamming of the fibre elements lying parallel to the guide element (34) may be avoided, whereby the introduction direction (34) of the fibre composite (1) is inclined to the direction of the fibre guide surface (5) at an entry edge (32) by an angle alpha and the entry edge (32) is arranged within the fibre guide element (3).

Abstract: A system for conditioning algorithms to achieve optimum execution time is disclosed. The system defines a computer programmable framework that can be used to efficiently find a global optimization vector. The system provides a precise execution sequencing of operations in order to achieve a speedy conclusion and a genetic receipt for finding the optimal number of siblings (cluster nodes) for the algorithm. The system defines the genetic function for generating an initial population of solution vectors, a condition number for optimal searching of a single vector, a best fit off-springs selection method, and a diversification function.

Abstract: To piece with a spinning device having a pneumatic twisting unit, a yarn end is back-fed from an output side, through the twisting unit, to drawing equipment, and then inserted laterally into a pair of drawing unit output rollers, from where it is drawn off through the twisting unit in the form of a continuous yarn with a rove being incorporated into it. During the back-feeding of the yarn end to the twisting unit input side, the yarn end is conveyed to a grasping device located at the side of the drawing equipment. The grasping device pulls the yarn end for subsequent insertion into the pair of output rollers past such rollers until such end is alongside the drawing equipment. A yarn presenting device is provided to convey to the grasping device the yarn end leaving the twisting unit input side.

Abstract: For piecing to a spinning device operating with a pneumatic torsion element, yarn is fed back through the torsion element into a readiness position alongside a drafting mechanism, while the roving is stopped before the end of the drafting zone. The roving is then released, whereby the forward roving end which is leaving the drafting mechanism, and which typically is rendered unsuitable for piecing due to stoppage of the roving, is sucked off. When a roving segment which remained in the drafting mechanism during the prior roving stoppage has been taken away, the roving and the yarn end are brought together and are simultaneously fed to the torsion element so as to be combined. To carry out this process, the drafting mechanism preferably includes before the end of its drafting zone at least one roving stopping device which may be controllable with feedback from a yarn monitor located adjacent the path of yarn being conveyed to a yarn take-up mechanism, such as a bobbin.

Abstract: Fiber material to be spun is presented to drafting equipment in the form of a fiber sliver and is subjected to pre-stretching and main stretching in such drafting equipment. While being stretched, the fiber sliver is gathered together to a minimum width which amounts to at least 1.5 times the diameter of a torsion device to be used with the sliver. After being thus gathered together, the fiber sliver is not further gathered together before having torsion imparted thereto while such diameter is maintained. The width of a condenser situated upstream from the main stretching field amounts here to at least 1.5 times the diameter of a pneumatic torsion device situated downstream from such field. The injector component and torsion component of such torsion device are of identical diameter, from their intake opening to their outlet opening. In this way, hairy and soft yarns, similar to ring yarn, are produced.

Abstract: In a spinning device of the type equipped with a torsion element having an injector nozzle and a torsion nozzle which are separated from each other during spinning by a gap which is open to the atmosphere, yarn is threaded for piecing into such torsion element, which is brought into a threading position. Threading is effected with the assistance of negative pressure which is applied to the torsion element from the side thereof which constitutes its inlet side during normal spinning. The gap between the injector and torsion nozzles is sealed against the atmosphere before threading of the yarn. Thereafter, and at the latest at the beginning of the withdrawal of the pieced yarn, the gap is opened once more. A sealing device, which may assume various alternative constructions, is provided to carry out the process by sealing the gap between the injector nozzle and the torsion nozzle during the threading phase.

Abstract: Fiber material is conveyed over a sieve-like surface to remove dust from material. The fiber material is thereby exposed to a suction airstream which is guided through the sieve-like surface and which is guided away from the fiber material at an acute angle which is formed opposite to the fiber transport direction. The fiber material may be aligned in parallel before it is exposed to the suction airstream. In order to orient the suction airstream at the desired acute angle relative to the fiber transport direction, the fiber material is guided over sieve orifices which are inclined at the acute angle opposite to the fiber transport direction.

Abstract: An improved locking mechanism is provided with a fixed outer cylinder and at least two side-by-side rows of resiliently urged pins disposed in a staggered relation therein. A face plate contains a nonrotatable key slot in angular disorientation to the pins and a key is provided with a plurality of biased grooves forming inclined planes to depress the pins as the key, imposed in an inner cylinder, are rotated together through the plane of the pins. The inner cylinder is connected to a bolt actuating linkage in a conventional manner. A pin bar having a plurality of reversely biased grooves forming inclined planes in the same profile as the key is disposed in a longitudinally extending channel in the inner cylinder. The face plate is formed of an anti-drill metal secured to an intermediate housing by crimping in a peripheral area which is inaccessible between the intermediate and an outer housing.

Abstract: A locking mechanism is provided having a rotatable inner cylinder concentric with a fixed conventionally sized outer cylinder and coplanar resiliently urged coplanar pins. A face plate contains a nonrotatable slot to accept a substantially conventionally sized key at a 90 degree angle from the plane of the pins. The key is provided with grooves cut on a forward bias to depress the pins as the key and inner cylinder together are rotated through the plane of the pins. The inner cylinder is connected to bolt actuating linkage in the customary manner. A pin bar having reverse bias grooves in the same profile as the key is inserted into radial channels provided therefor during assembly of the lock, said pin bar permitting locking without the presence of the key. The key slot may contain a barrier bisecting the key slot to prevent unauthorized access to the pins, with a correspondence cleft in the key to fit around the barrier.

Abstract: Catalytic material in powder form flows downwardly along a vibratory spiral conveyor chute, while gas flows counter to the powder, preferably in excess. Mixing ramp arrangements may be provided in the chute.

Abstract: Powdery material flows downwardly along a vibratory spiral conveyor chute, while gas flows counter to the powder, preferably in excess. Mixing ramp arrangements are provided in the chute. These involve inclined ramp surfaces dividing the powder stream into two layers, and provisions for causing the initially uppermost layer to tumble down onto the chute bottom while the initially lowermost layer is still supported on its ramp. The latter then drops down, too, and now becomes the uppermost layer.