摘要:
A structure for ballistic protections is described. The structure includes at least two distinct textile elements which co-operate to stop an incident bullet along a direction, taking advantage of the dissipation of the energy associated to the bullet impact. The first textile element includes fibers capable of dissipating a part of the energy connected to the incident bullet impact owing to a crystalline phase change. The second textile element includes fibers capable of dissipating a part of energy associated to the incident bullet impact by fibrillation.
摘要:
A flexible penetration-resistant package is described, comprising a) at least one laminate consisting of at least one layer of yarns comprising fibers with a strength of at least 900 MPa as per ASTM D-885, wherein the layer of yarns is bound to at least one polymer continuum having a modulus of elasticity in extension of 5 to 1000 MPa as per ASTM D-882 and wherein the package has an outer surface facing the side under attack and an inner surface facing away from the side under attack, and b) a layer of compressible material, the layer arranged either on the inner surface of the package or at such a position in the package between the laminates that from this position the number of laminates toward the outer surface of the package is at least twice the number of laminates toward the inner surface. The package is used to produce protective clothing, in particular protective vests, suits, and mats.
摘要:
A monitoring apparatus is described for the contact-free monitoring of a region adjacent to a service robot of a ring spinning machine. The apparatus includes an electro-acoustic converter for transmitting a sonic signal which is divided into a sonic measurement signal S.sub.SM and a sonic reference signal S.sub.SR. An electronic control unit delivers a fault signal if no sonic signal has been received by the expiry of a reference transit time. If, on the other hand, a sonic measurement signal is received prior to the expiry of the reference transit time, the control unit delivers a recognition signal to indicate the presence of an object in the monitored region.
摘要:
The control system uses a digital position controller for controlling the movement of a yarn end for re-piecing, for example in a rotor spinning machine. The control system is distance-dependent such that the position of the yarn end at a given time provides a control for the speed of the yarn end back to the target position.
摘要:
A textile spinning apparatus comprising an automatic servicing tender and a textile spinning machine having a plurality of spinning stations, the tender being controllably movable into operational alignment with selected stations, the tender including a tender control mechanism for controlling a sequence of tender operations upon operational alignment of the tender with a selected spinning station, the textile spinning machine including a machine control mechanism having a mechanism for receiving an operational alignment signal from the tender and a mechanism for triggering the tender to commence the sequence of tender servicing operations in response to the alignment signal.
摘要:
In order to coordinate the movements of two movable parts on a spinning frame and a service robot, a system is provided in which one part carries two sensors which are used to detect the position of the other part within the respective measuring ranges of the sensors. This system provides for rough positioning of one part to the other at a relatively high speed until the first sensor detects the second part. Thereafter, coordination of the movements of the two parts takes place within narrow tolerance limits using the second sensor which has a narrow measuring range.
摘要:
A flexible penetration-resistant package is described, comprising a) at least one laminate consisting of at least one layer of yarns comprising fibers with a strength of at least 900 MPa as per ASTM D-885, wherein the layer of yarns is bound to at least one polymer continuum having a modulus of elasticity in extension of 5 to 1000 MPa as per ASTM D-882 and wherein the package has an outer surface facing the side under attack and an inner surface facing away from the side under attack, and b) a layer of compressible material, the layer arranged either on the inner surface of the package or at such a position in the package between the laminates that from this position the number of laminates toward the outer surface of the package is at least twice the number of laminates toward the inner surface. The package is used to produce protective clothing, in particular protective vests, suits, and mats.
摘要:
The present invention relates to an anti-penetration flexible composite material, comprising a series of ballistic fibres arranged on one or more overlying layers, in which at least one portion of said fibres is impregnated with a resin or a polymer in the form of a viscous or visco-elastic liquid.