US2511275A - Attachment for sewing machines for repairing hosiery - Google Patents

Description

Patented June 13, 1950 UNITED STATES PATENT OFFICE ATTACHMENT FOR SEWING MACHINES FOR REPAIRING HOSIERY Anne E. Leino, Brooklyn, N. Y.

Application November 10, 1948, Serial No. 59,306

2 Claims. 1

My invention relates to a knitting attachment device to sewing machines for repairing runs in hosiery, etc.

The salient feature of my invention is the provision of a knitting device readily attached to diiierent makes of sewing machines, in which the needle bar cooperates with the upward and downward movement of my knitting needle secured in a horizontal adjustable needle bar of my device that is clamped and secured to the presser bar of the sewing machine, my adjustable needle bar being urged downwardly by the tension of a coil spring, so my knitting needle repairs the run in the hosiery held by the hands, on a tubular member, such as an open end of a glass or box.

Another feature of my invention is the adjustment of the knitting needle of my device, whereby a larger area of repairing may be accomplished, also the knitting operation may be brought closer to the working light fixed on the machine.

Another feature of my invention is that my device may be used on well known sewing machines having different bases, my attachment device may be applied to a vertical or horizontal base, the principle being the same, the only difference being the means of attaching my device, or in anchoring same.

Other features of my invention will appear as the description proceeds in the following specification, accompanied by the annexed drawing, in which Figure l is a fragmentary front elevational view of a sewin machine showing the needle and presser foot in dotted lines, as they are attachable and removable.

Figure 2 is a side elevational View of Figure 1, in which my attachment is secured to the presser bar, the presser foot and sewing needle being removed, and a special needle is used for repair work of hosiery, as shown on glass, a thumb and finger being shown in dotted lines for holding the hosiery.

Figure 3 is a similar view, except the repair needle is shown in operation, and the sewing machine needle bar co-acting therewith, hence reason in removing the needle therewith.

Figure 4 is a complete unit of my attachment shown in prospective, prior to being attached to a sewing machine.

Figure 5 is a front elevational view of Figure 2 on a slightly larger scale.

Figure 6 is a plan view of Figure 2 on the same scale as Figure 5.

Figure 7 shows a perspective view of my attachment shown in Figures 2, 5, 6 and '7, with a fragmentary portion of the sewing table of the sewing machine.

Figure 8 is an exploded view of all of the component parts of my attachment, being shown in perspective for the convenience Of illustration.

Figure 9 is a perspective view of the removable presser foot of the sewing machine, and

Figure 10 shows an alternative form of securing my attachment on sewing machines having no spool on its presser bar.

Referring to the drawings the numeral I2 designates a base bracket member having a lower vertical wall portion l3 terminating into an extended bar-like portion It. The lower wall portion 13 has a slotted portion l5 and two rows of tapped holes 16, and a right angle horizontal base or floor flange portion ll extends from the lower wall portion l3, which is provided with an open slot-like notch l8, and a tapped hole I9.

Slidingly arranged on the bar-like extension Is is a. horizontal arm-like bar member 23 provided with an end boss portion 2| having a slotted opening 22 that fits slidingly on the vertical bar like extension I l. The boss 2| has an extended bar portion 23 provided with a slotted portion 2t.

Adapted to rest on the bar 20 is a similar bar member 25 with a slotted portion 25, and has a boss portion 21 having a needle hole 28 for a needle 28a, and a tapped hole 29 for a winged set-screw 38 to secure a knitting needle 32a. The two slotted bar members 253 and 25 are adapted to be adjustable to any desired length by means of a pair of screw-bolts 3!, extending through the slots 2t and 25, and locking threaded knurled nuts 32 for clamping and securing the bars together for their required adjustment.

A coil spring 35 has one hook end as that is attached to an eye-bolt 370, secured in the hole [9, of the base plate portion ll of the bracket I2. A U-shaped housing member 38 is secured by screws 39 of the medial tapped holes, 16 of the lower wall portion 13 of the bracket member l2, thereby enclosing the coil spring therein with the underside 2m of boss 2! of arm 2%! abutting on the upper end 49 of the housing 38, when the other hook end 36 of the coil spring 35 is attached to the eye-bolt 3'! secured in the bottom of the boss 2| of the arm 20.

A clevis for clamping arrangement 42 comprises clip or clamp members 43 secured to a plate I 4 by screws 45, which has projecting corner tab or lip portions 46, as when plate is inserted through the slotted opening IS in a tilted position, and when plate is positioned horizontally, it is secured therein. A clamp bolt 41 with a wing-nut 48 is provided in the open space between the clip or clamp members 43.

The above description covers all of the component parts of my attachment device AD as shown in Figure 4 in its assembled unit before being attached to a sewing machine, whereas, my attachment device AD as shown is merely to illustrate its attachment to a well known make of sewing machine SM, in which the presser foot PF is removed from its position shown in Figure 1, and my device AD is secured to the presser bar PB as shown in Figure 2, whereby the clip or clamp member 43 will snap on the presser bar PB above the spool S and simultaneously the notch I8, of the base plate I! of the bracket l2, will slide into the holding pin or bolt 1-13 of the presser bar PB, thereby providing securing means laterally and vertically. The bar-like arm contacts the needle shaft NS of the needle bar NE of the sewing machine, whereby the bar-like arm 20 raises upwardly on bar-like extension H of base bracket I2, thereby extending the coil spring 35 under tension and raises the boss 2| of arm 20 free from the contact on the upper end 40 of the housing 38.

In operation a tubular member such as a drinking glass G (or a box), with the open end placed under the knitting needle 38a, note Figures 3, 6 and '7. A stocking (or any other knitted or woven item), run is placed over the open end of glass (or box), and the sewing machine is then operated after the sewing needle SN has been removed. The needle shaft NS in its reciprocating movement allows my bar-like arm 20 to lower until it abuts the upper end 40 of the housing 38, which acts as a stopthe needle bar NB continues downwardly as shown in dot-dash lines in Figure 3, but in its upward movement of the needle shaft NS raises bar-like arm 20, whereby this operation raises and lowers my knitting needle 28a so it may pick up and knit the open threads or strands of the run in the hosiery as the operator manoeuvers the glass G (or box) according to the run.

The arms 20 and 25 may be adjusted when more area for repairing the hosiery, or to work near or from the lamplight attached to the sewing machine.

The housing 38 may be varied in its height, depending to the different types of sewing machines, in which extra holes l6 are provided when the housing is longer or shorter than shown, only four screws being necessary to secure housing.

In Figure an alternative clamping arrangement is shown for attaching my device to the presser bar, especially to a well known make of sewing machine, in which the clips or clamps 43a are adjustable by the thumb screw 41a and slot 41b in either direction, whereby extended ears 43b provide for an extra clamp screw 43c. The ears 4311 may be greater in depth than shown when no spool S is on the sewing machine, also the base bracket [2a is narrower in width and no open notch I8 is required.

It is to be understood that the drawing is merely illustrative, and do not confine myself to the exactness of dimensions or shape thereof, on which improvements or alterations may be made without departing from the spirit or principle of my invention, providing same comes within the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States of America is as follows:

1. In an attachment for sewing machines for repairing hosiery of the character described, the combination of a bracket member having a vertical wall portion with an upper reduced extension, and a lower base portion on a horizontal plane having an open notch portion, said vertical wall portion having a slotted opening for securing a clamping member therein, a pair of horizontal arm members provided with slotted portions through which extend locking screw-bolts for adjustably setting said bar together at any length desired, one of said arms provided with an end boss portion having an opening slidingly arranged on said extension of said vertical wall portion of said bracket, the other arm having a boss end portion for holding a knitting needle, said bracket having a housing channel member adjustably secured thereto on said vertical wall portion, a coil spring arranged therein having one end secured to the horizontal base portion of said bracket, and the other end secured to the underside of said boss portion of said arm slidingly arranged on said extension of said vertical wall portion, whereby the underside of said boss portion of said arm will be urged by said spring to contact and rest on top of said housing for a stop control, said bracket member adapted to be clamped to a presser bar of a sewing machine, in which said arms may contact and rest upon the locking screw shaft of the needle bar thereof. whereby said needle bar shaft will provide reciprocating movement to said knitting needle for repairing runs in hosiery placed under said knitting needle and held by the hands over an open end of a glass or box.

2. In an attachment for sewing machines for repairing hosiery of the character described, the combination of a bracket member, horizontal arm members sliding adjustable for desired length, one of said arms provided with an end portion for holding a kntting needle, the other arm provided with a boss portion adapted to fit an extension provided on said bracket member, a clamping member arranged on said bracket, a coil spring having one end secured to said bracket and the other end secured to the underside of said boss of said arm slidably arranged on said extension of said bracket, said bracket adapted to be suspended and clamped to the presser bar of a sewing machine, whereby said arms rest on a screw shaft of the needle bar thereof, a housing member covering said coil spring, and secured to said bracket, whereby said arms will reciprocate upwardly and downwardly during the movement of said needle bar of said sewing machine, whereby runs in hosiery may be repaired when held under said knitting needle on a tubular member which is adapted to be moved as desired.

AUNE E. LEDNO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,928,168 Briley Sept. 26, 1933 1,931,588 Nevelson Oct. 24, 1933

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