摘要:
A yarn feeding and guide device for knitting machines has at least one yarn feeder, which delivers the yarn arriving from a yarn package and being supplied as needed at a predetermined tension by a yarn delivery unit or fournisseur to the needles of a row of needles. The yarn feeder is disposed in a stationary manner on the machine such that it does not contact the needles of the needle row, and yarn guide elements located in the path of the yarn are associated with it. In order to obtain gentle handling of the yarn, in particular in the vicinity of the yarn feeder, and to attain easy manipulation of the yarn feeding and guide device, the arrangement is such that the yarn feeder has at least one open yarn guide groove formed on the circumference of a yarn feeder body provided with a securing device, and the bottom of this guide groove is curved in an arc--as viewed in the direction of yarn travel--and the yarn can be deflected in this guide groove into a direction extending obliquely with respect to the needles.
摘要:
In a knitting machine having at least one needle bed, the needle bed is equipped with needles located beside one another, which are guided in a longitudinally displaceable manner under the control of a needle cam race. Combined hold-down and knock-over sinkers that are movable both in the longitudinal direction of the needles and transversely thereto are pivotably supported between the needles, their longitudinal and transverse movement being controlled by sinker cam race surfaces.In order to attain satisfactory, relatively low-friction guidance of the needles and sinkers while operating at high speed, the apparatus is designed such that the needles are disposed on longitudinal ribs disposed spaced apart on the needle bed, and the sinkers are disposed between these ribs. The needles are laterally guided, over an upper portion of their shank length near the needle cheek, by the sinkers, while over the remaining lower portion of their shank length they are guided by auxiliary ribs disposed beside the longitudinal ribs and joined to the needle bed.
摘要:
To insure gentle latch operation, and particularly gentle opening of the latch, the last-knitted loop (36) is constrained to move in the same direction as the needles (2) by controlling movement of sinkers (7) in the same direction as the needles, at a speed slower than needle speed during the raising phase of the needles (FIGS. 5, 6), so that initial movement of the latch occurs slowly and not abruptly to permit faster knitting speeds by reducing stresses on the latch. Conversely, during closing movement of the latch (FIGS. 9, 10), initially, the loop and the needle are lowered simultaneously, the lowering speed of the loop, controlled by the sinker (7) being slower than the lowering speed of the needle. Cast-off can be improved by rapidly controlling the loop by suitable sinker movement (FIGS. 11, 12). The projection distance of the needle can be decreased to at most that of the latch motion distance by constraining the loop, held on a sinker as well as on the shaft of the needle, to a position below the rest position of the sinkers by suitable construction of the sinker cam (15, 15a, 15b; FIG. 2).
摘要:
To permit independent adjustment of movement of knock-over bit - jack sinker elements (3) having knock-over or casting-off heads (7), a cam box (22, 23) has an individually adjustable raising and lowering cam track (26, 28), engaging a butt (6) on the sinker element. The shaft (4) of the jack or sinker is formed as a double-arm lever (16, 17) with an intermediate fulcrum or pivot point projection (18), engaging a surface of the knitting machine, for example a cylinder groove, and two individual cam tracks (34, 35) are provided, formed on cam carriers (36, 37), of which, preferably, at least one (36) is adjustable, to provide for rocking movement of the knock-over bit - sinker jack element about the fulcrum or pivot projection independently of sliding longitudinal raising and lowering under control of the customarily provided cam structure (26, 28).
摘要:
A process for the production of an implant and to an implant for surgical use in humans or vertebrates, in particular for the replacement, for the partial replacement or for the strengthening of a damaged intervertebral disk or for the replacement, for the partial replacement or for the strengthening of an anatomical joint. The implant includes at least one wire or at least one fiber. The wire or the fiber is present at least partially as a knitted fabric.
摘要:
A method of delivering a radioactive liquid includes, performing an initialization, including; extracting at least a first amount of a radioactive liquid from a source of radioactive liquid, measuring a radioactivity level for the first amount of radioactive liquid, and performing a calibration phase. The calibration phase includes, extracting a second amount of radioactive liquid from the source of radioactive liquid wherein the second amount is calculated based on the radioactivity level of the first amount to provide a total dose of radioactive liquid having a predetermined radioactivity level, and delivering the total dose and performing at least one more calibration and delivery phases.
摘要:
The present invention relates to an implant for surgical use in humans or vertebrate animals in the replacement, partial replacement or reinforcement of a joint or an intervertebral disk and to a method for the production of an implant. In a first embodiment, the implant comprises a composite structure of a first section, which is formed at least by one compression-molded component made of wire, and a second section, with the first section being at least in parts embedded in the second section. In a second embodiment, the implant also comprises a compression-molded component. This component is formed by a wire made of a first material, with parts of said wire of the molded component having a coating made of a second material.
摘要:
In order to increase the operating speed of the knitting machine and to attain a fine needle cut, sinkers (7), with their shaft (12), are guided on a needle carrier (1), and simultaneously forming guide ribs for adjacent needle shafts (3). A projection cam (16) which imparts to the sinkers (7) the movement transverse to the needles (2) is disposed directly on the needle carrier (1).
摘要:
An apparatus for the catalytic purification of flowing gases, in particular exhaust gases of internal combustion engines, is constructed having a catalyst body through which gas flows, which catalyst body comprises a knitted fabric whose heat-resistant fibrous material is coated with a catalytically active material.
摘要:
The subject-matter of the invention relates to a knitted tube (100), in particular a stent (110) to be inserted into arterial blood vessels, comprising at least one circular knitted article (103) configured as knitted fabric as well as a method for producing a knitted tube (100), in particular a stent (110) to be inserted into arterial blood vessels, comprising the steps: production of a circular knitted article (103) configured as knitted fabric, wherein the produced circular knitted article (103) is reversed so that the originally internal side (106) of the circular knitted article (107) is arranged outside.