US1887166A - Manufacture of knit goods - Google Patents

Description

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% Zer' Patented Nov. 8, 1932 UNITED ST TES OTTO HUBER, F REUTLINGEN, GERMANY MANUFACTURE OF KNIT GOODS Application filed January 27, 1930, Serial No. 423,773, and in Germany January 26, 1929.

The present invention relates to the manufacture of knit goods, and the primary object of the invention is to provide an improved method of making these goods having certain advantages to be hereinafter described, and an apparatus suitable for carrying out this method. v

The known kinds of hosiery produced mechanicall .along the lines of hand knitting consist 0 thread interlacings linked together and continually connected by rows in lines resembling an S or a double 8. However, all known interlacings suffer from the drawback that, owing to breakage of thethread and the like, runs are produced which continue to run in the longitudinal direction of the goods. In order to prevent this dropping of loops, it has been proposed to employ worked-in wefts or reinforcing threads or to cover the loops and thus prevent the formation of runs, but the goods treated in this manner lost part of their stretch as well as other desirable qualities or could be used only for certain narrowly restricted purposes.

According to the present invention, the sinker loops are drawn out in the known manner to form nooses which are then drawn through the loops of their courses, engage the loops of the following course, and are worked out to looping knots. In this way, knit goods are produced wherein each loop is tied into a knot of the following course so that dropped or broken loops cannot run.

he invention is illustrated in the accompanying drawings, in which Figure 1 shows two finished courses; Fig. 2, goods according to Fig. 1 with a second thread worked into each course and running partially together with the ground thread in double-S form, each loop passing throu h the knots formed by the ground thread; ig. 3, a diagram of the formation of a course according to Fig. 1; Fig. 4, a diagram of the formation of goods according to Fig. 2; and Figs. 5 to 9 show the formation of a plain course and a modification of the needles.

The manufacture of knotted goods requires special workin means for the formation of t e loops and coping knots. The needles 60 consist of two parts n and d which can be movably arranged. The needles n per se and the needles d per se can be grouped in bars or rows and these bars or rows moved independently of one another. The portion a of the needle is formed similarly to a spring needle or common hook and provided with a groove 2, the front being bent into a short hook it. Above these parts a looping needle 03 is disposed so that its front end is is somewhat buried in the groove 2 of the needle n and adapted to move forward and backward in the longitudinal direction of the latter. With these two-part needles looping for plain goods can be carried out also in the known manner in the double-S style, the process of formin the courses according to Fig. 1 being, or example, the following:

The lower or grooved parts n of the needles and the upper parts or looping needles 5 are separately combined into bars, and both 7 groups can be moved forward and backward independently of one another, their working method being illustrated partly in Figs.

5 to 9 and partly in the views 1 to 6 of Fig. 3. At first, a plain course similar to that produced in the known manner on a knitting frame is formed by driving out the lower needle parts n and the upper needle parts 03, which are originally in the position shown in view 1, Fig. 5, and Fig. 3, far enough to place 30 the loops lying in the needle hook I). over the upper needle parts d (Figs. 6 and 7 and Fig.

3, View 2). The thread a is then worked in by the covering needles 8 or suitable jack sinkers, as shown in Figs. 7 and 4, views 7 s5 and 8, relative to the thread b.

After the thread a has been worked in, the needles n are moved back until the needle hook is disposed below the front part is of the upper needle part d and the thread a enclosed in the hook h (Fig. 8). According to Fig. 9, the upper needle parts dare then moved slightly to the front and, simultaneously, the needles n still more backwardly, whereupon the loops lying on the front part k of the upper needle parts d are pressed off and a lain course having double-S-like loops is eing formed in the known manner (F1 9 and view 1 of Fig. 3). The looping nee les d are then brought into basic positill (Z (View 5, 3).

tion (view 1, Fig. 3) and then, together with the needles n, driven out in the manner described until the loops formed are placed over the front arts is of the looping needles (Z (View 2, 3) The lower needles n are then moved back (View 3, Fig. 3) so that the sinker loops of the thread a. can be lifted by the covering needles 3 or specially shaped jack sinkers and transferred laterally to the needles n without-being hampered by the latter.

This step is shown diagrammatically in the views 1 to a of Fig. 3. After the sinker loops have, for instance, been caught in the manner described by the covering needle 8 and lifted laterally high enough to permit free motion of the needles a under the covering needle 8, the needles n are driven out again (View 4:, Fig. 3). The parts .9 are moved laterally in a somewhat oval path about the needles a so that the sinker loops of the thread a: rest on the needles n, as illustrated in views 7 and 8 of Fig. 4 for the thread a. The members 8,.during their return course, are moved back far enough to be unable to interfere with the further steps in the work. The needles to are then moved back until the needle hooks hare placed under the front portion In of the upper needle parts d and the covered sinker loops are thus enclosed between the two needle parts 712 and The needles or with the upper parts (Z are then moved back simultaneously until the loops lying on the upper needle parts are knocked over so that a finished course has been formed according to Fig. 1 (views 6 and 7, Fig. 3).

The loops thus formed form every time a looping knot, and these knots are automat ically drawn together, when the goods are stretched longitudinally by a corresponding take-up. By working in a second thread into each course (Figs. 2 and 4) the needle loops are reinforced, as the second thread Eb is made into a needle loop together with the thread a, while in the sinker as the two threads 11 and To run separately. n this way the goods gain materially in durability and closeness. A second thread 2') (Figs. 2 and 4) is worked in asfollows First the plain course is formed with the thread a in the manner described, whereupon theneedles n are driven out again and the sinker loops transferred on the latter. The needles 1:. remain in this driven out position, and the second thread I) is then worked in by the needles 8 (Fig. 4., View 7 The views 8, 9 and 10 of Fig. 4 show diagrammatically the working in of the second thread b. After the thread has been worked in the needles 1 are moved back in the same manner as described so that the needle hooks h are placed first under the front portion In of the upper needle part and enclose the work-in thread 12 and the covered sinker loop, whereupon the needles 'n and the upper needle parts d are moved back together until the loops on the front portion k of the upper needle part (Z are knocked over and a course is formed according to Fig. 2.

\Vhen using the needles and upper needle parts according to Figs. 5 to 9, the needles 0 and (l are moved forward together from their initial position (Fig. 5) until the loop resting on the needle 01 is placed over the groove of the needle n, as shown in Fig. 6. The upper needles (Z are then moved back so as to place the loop resting on the needle or on the front portion 7a of the needle 71, whereupon the thread is prepared by the sinkers p for a new loop, as indicated in Fig. 7. The needle or is moved back after the thread has been sunk so that the thread loop is drawn through the mesh resting on the front portion A: of the upper needle (Z, the sinker being moved so high that the sunk thread loop is released. as illustrated in Fig. 8. According to Fig. 9, the needle (I is then moved forward until the loop resting on its front portion 7a is released and a plain loop has been formed. The further steps leading to the knotting of the loops are the same as described in con nection with Figs. 3 and 4.

The Working process is repeated in all courses formed one after another as in hosiery frames or knitting machines. Goods made under thisprocess can be worked in a great variety of gauges and loop sizes, according to the arrangement and type of needles used, and may be employed for all known kinds of knit goods as well as for various other articles for which the known kinds of knit goods were not suited owing to the running of broken or dropped loops.

I claim 2- 1. Method of manufacturing run-proof fabric which consists in causing a plain course to he formed by two-part superimposed needles, transferringthe needle loops from a lower grooved needle to an upper looping needle, transferring the sinker loops of the said course, by means of covering needles, on the emptied lower grooved needles Lot and knocking the mesh loops held by the upper looping needles over the covered sinker loops, the nooses formed from the sinker loops remaining as needle loops in the lower grooved needles.

2. Method of manufacturing knit goods of the kind described which consists in transferring the sinker loops of the first thread on the lower grooved needles, driving the latter out until a second thread can be sunk thereon and knocking the needle loops of the first thread held in the upper looping needles over the covered sinker loops of the first thread and the sunk second thread, the nooses drawn from the sinker loops of the first thread remaining together with the sunk second thread as needle loops in the lower grooved needles.

3. Apparatus for manufacturing knit I goods of the type mentioned and carrying out the process described comprising in combination two-part superimposed needles arran ed in two groups and movable covering nee les, both needle groups being separately movable, the lower part of the two-part needles being provided with a groove and hook and the upper parts with a'gripper-like front portion to transfer the loops of the lower needle parts to the upper ones.

4. Run proof mesh goods knitted and knotted from.at-least one working thread, having a. second mesh loop passed through the needle meshes thereof which is taken from the adjacent sinker loop, said sinker loops being laterally ofi'set and then drawn through the needle meshes resulting in knotlike loops.

5. Run-proof knitted and knotted mesh goods made from two working threads wherein a knot-like mesh loop is formed from the first thread, a loop being formed from adjacent sinker meshes, and the second working thread runs through the said knot-like ,mesh loop of the first thread, to form a second, larger mesh loop, so that the needle mesh of the second thread is tied-in, in the mesh knot of the first thread formed'thereon and lies the sinker loops separate from the first threa In testimony whereof I afiix my signature.

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