US1955632A

US1955632A - Method of knitting

Info

Publication number: US1955632A
Application number: US644111A
Authority: US
Inventors: Heinitz Woldemar
Original assignee: Schubert und Salzer Maschinenfabrik AG
Current assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date: 1931-11-23
Filing date: 1932-11-23
Publication date: 1934-04-17
Anticipated expiration: 1951-04-17

Description

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Patented Apr. 17, 1934 UNITED STATES METHOD F KNITTING Waldemar Heinitz, Chemnitz, Germanyyassignor to Schubert & Salzer Maschinenfabrik Aktiengesellschaft,'0hemnitz, Germany Application November 23, 1932, Serial No. 644,111

7 Claims.

My invention relates to fabrics and to the method of knitting same on flat knitting machines.

More particularly, my invention relates to. a knitted fabric, for instance the heel of a stocking, which' is widened for more than one loop, i. e. for not less than two loops and to the method of performing the widening operation.

Knitted'fabrics of the kind referred to were heretofore made by casting on loops, or by transferring loops.

A method of the first-mentioned kind is described in my prior patent of the United States, 1,829,650, dated October 27, 1931, for Method of knitting hosiery from flat knitting machines.

This method requires rather complicated special structure as it is necessary to deect the penultimate needle from the locking-pin position when the needle is raised.

A method of the second-mentioned kind is described in my copending application for patent of. the United States, Serial No. 554,548, led August 1, 1931, for Stocking and method of knitting same on flat knitting machines. 'I'his method involves comparatively slow operation of the knitting machine and, moreover, the loop transfer causes distortion ofthe loops, as the nooses ofthe loops become too short by the lateral transferring. 'Ihe distortion is detrimental to thefabric.

It is .an object of my invention to obtain a knitted fabric`in which the selvage loops are supplied with a larger stock of thread than in the old fabrics so that the selvage becomes much more resilient, and to so perform the method of knitting the fabric that special structure is not required, the old means for eliminating the presser motion for certain needles can be used, and the drawbacks of the old methods referred to are avoided.

To this' end, in performing my method, I move the thread guidewhich may be of the usual kind--beyond the selvage of the fabric for not less than one loop, i. e., for two or more loops, on a corresponding number of extra needles, after forming a row of loops. The thread is taken about the outer extra needle and placed in front of all needles for the formation of a fresh row of loops on their hook side and the presser motion is eliminated for one of the extra needles, which may be the inner or outer needle of the sets of extra needles, so that a double noose is formed on the non-pressedneedle. of loops may be formed in this manner.

If a fabric is to be widened at both sides, for instance, in heels for stockings, the thread is preferably alternately taken about the extra or Widening needles, so that the double noose is alter-V nately formed at the right and at the left in the individual rows of loops.

If double nooses are formed on the inner extra needle by'not pressing this needle, the thread refabric Any number of rowsl Germany November 23, 1931 another double loop in the wale at the side of I the Wale having the tuck loop, which extra double loop serves as a non-run loop if the tuck loop the selvage runs. In this manner, two singleneedle loops are held 'against running in the wale.

A further improvement is effected and running is still more reliably prevented, by arranging another double loop on each wale having a tuck loop, for instance, in the third or fifth row subsequent upon the row having the tuck loop. The double loops arein a line which is parallel to the seam of the selvage so that the seam is suitablyreinforced.

In the drawings anixed to this specication and forming part thereof, fabrics embodying my invention and the knitting operations by which they are obtained, are illustrated diagrammatically by way of example.

In the drawings f Figs. 1 to 4 illustrate the operations for knitting a fabric while not pressing the inner extra needles, Y

Fig. shows a portion of aheel which is knitted in conformity with Figs. 1 to 4, and- Figs. 6 to 8 illustrate the operations for knitting a fabric while not pressing the outer extra needles, Fig. 8 also showing the tuck loops referred t0. f

' Referring now to the drawings, and first to Figs. 1 to 5, 11 to 28 are the normal needles for knitting the normal loops, 7, 8, 9, 10 and 29, 30, 31, 32 are sets of extra needles at the ,left` and at the right, respectively, of the body of the After forming the rows of loops a and b, Fig. 1, in the usual manner, the thread guide (not shown) which moves from the right to the left, runs beyond the normal needle 11 at the end of row c for the pitch of the two

extra needles

9, 10. The thread in a manner which is known for` selvage needles, is taken about theA outer extra needle 9 and is then placed in front of all needles from 10 to 28, on their hook side, and sunk.

After forming the row c, the thread guide re-` turns from the left to the right and, at the right of the fabric, the thread is taken about the outerV extra needle in row d and is then placed infront of all needles from 29 to 9, on their hook side, and sunk.

Upon the finishing-of row/d, needle 10 is not pressed so` that a double noose forms onthis needle, Fig. 3.

the inner extra I For the next row, e, two more extra needles '1, 8 and 31, 3,2y are usedl at the left and at the right of the fabric, respectively, the thread is taken about the outer needle 7 at the left, and placed in front of needles 8 to on their hook side, as shown in row f, Fig. 4.

Upon the finishing of row f, the inner extra needle 29 is not pressed so that a double noose is formed on this needle. `The needle 10 in row e and the needle 29 in row f thus present nooses for the formation of fresh wales.

The operation is repeated by taking the thread about the outer extra needle 32 at the right,

whereupon a fresh row of loops is formed, etc. s

It will be understood that double nooses are formed alternately at opposite ends of 'two' subsequent rows.

Fig. 5 shows the right-hand selvage of a heel which has been widened in conformity with my method, the needles 23 to 32 and the rows a to f being shown at the base of the figure. The selvage has a much greater stock of thread than a selvage formed by the old methods referred to, and' its resiliency is increased in proportion.

Referring now to Figs. 6 to 8, theseshow the operations if the outer extra needle, 9 at the left in Fig. 6, is not pressed and a double or lselvage tuck loop A is formed on this needle in row e. In the next row, f, a double or selvage tuck loop A is formed on the outer extra needle 30 at the right. In the same row f, a doubleY or non-run loop B is formed on the inner extra needle 10.

Fig. 8 shows the relative position of the doubleloops in a fabric-having rows a to k, and needles 3 to 36. It will appear that in addition to the double or non-runloop B in row j, an

other double loop CV is formed in the same wale.

loop in a given row, has another double loop in one of the subsequent rows, say the third to fth row from the first-mentioned row. VIn this manner, it will be understood that the fabric is greatly reinforced and better .protected against runs. f I wish it to be understood that I cfo not desire to be limited to the exact details of construction shown and described, for obvious modification will occur to a person skilled in the art.

Various changes may be made in the details disclosed in the foregoing specification without departing from the invention or sacrificing the advantages thereof.

.I claimtv 1. 'Ihe methodvof knitting fabrics on iiat knitting machines by widening f or more than one loop, comprising moving the thfread guide beyond the selvage' of the fabric for two extragneedles after forming a row of loops on the normal needles, taking the thread about the outer extra needle and placing it in front of all needles on their hook side for the formation of a fresh row of loops, and eliminating the presser motion for one of the extra needles, so as to form a double noose on the non-pressed needle.

2. The method of knitting fabrics on at knitting machines by widening for more than one loop, comprising moving the thread guide beyond the selvage of the fabric for two extra needles after forming a row of loops on .the normal needles, taking the thread about the outer extra needle4 and placing it in front of all needles on their h ook side for the formation of a fresh row of loops, and eliminating the presser motion for one of the extra needles, so as to form a double ting machines by widening for more than one noose on the non-pressed needle alternately at opposite ends of each two rows.

3. The method of knitting fabrics on at knitting machines by widening for more than one loop, comprising moving the thread guide beyond the selvage of the fabric for two extra needles after forming a row of loops on the normal needles, taking the thread about theouter extra needle and placing it in front of all needles on their hook side for the formation of a fresh row of loops, and eliminating the presser motion for the inner extra needle so as to form a double noose on the non-pressed needle.

4. The method of knitting fabrics on flat knitloop, comprising moving the thread guide beyond the selvage of the fabric for two extra needles after forming `a row'of loops on the normal needles, taking the thread about the outer extra needle alnd placing it in front of all needles on their hook side for the formation of afresh row of loops, and eliminating the presser motion for the outer extra needle so as to form a double noose on the non-pressed needle.

, 5. The method of knitting fabrics on flat knitting machines by Widening for more than one loop, comprising moving the thread guide beyond the selvage of the fabric for two extra needles after forming a row of loops on the normal needles, taking the thread about the outer extra needle and placing' it in front of all needles on their hook side for the formation of a fresh row of loops, eliminating the presser motion forI the outer extra needle in one row of loops, and for the inner extra needle in the next row, so as to form a double noose on eachof said needles.

6. The method of knitting fabrics on flat knitting machines by Widening for more than one loop, comprising moving the thread guide beyond the selvage of the fabric for two extra needles after forminga row of loops on the normal needles, taking the thread about the outer extra nedle and placing itin front 'of all needles on their hook side for the formation of a fresh row' of loops, eliminating the presser motion for the inner extra needle so as to form a tuck loop on the non-pressed needle, eliminating the presser motion for the outer extraneedle in the next row to form a tuck loop on said non-pressedouter needle and forming non-run loops in each Wale having a tuck loop on an inner extra needle.

7. The method of knitting fabrics on flat knitting' nachines by widening for more than one loop, comprising moving the thread guide beyond the selvage of the fabric for two extra needles after forming arrow of loops on the normal needles, taking the thread about the outer extra needle and placing it in front of all needles on their hook side for the formation of a fresh row of 7 forming non-run loops in each Wale having a tuck 140 loop on aninner extra needle, said non-run loops being arranged at a distance equal to several pitches of the row of loops from the tuck loops in each Wale. f l

. WOLDEMAR HEINITZ.