US1607532A - Sewing-machine attachment - Google Patents

Description

Nov. 16, 1926." 1,607,532

5 HALBERG I SEWING MACHINE ATTACHMENT Filed April 14, 1926 INVENTOR SamuelJlklbe2y ATTORNEYS Patented Nov. 16, 1 926.

UNITED STATES 1,607,532 PATENT OFFICE.

SAMUEL HALIBERG, OF BROOKLYN, NEW YORK.

SEWING-MACEDSE ATTACHMENT.

Application filed April 14,

plate for the tape and garment which willmaintain the edges of the tape and the material to which it is being sewed, 1n proper alignment.

The invention also includes in combination with the gauge plate, a tape guiding and severing member, so that the tape may be readily severed at any point.

Objects of the invention are to provide 'an attachment of this character which will save considerable time and labor in the operation of applyin a binding tape, and an' attachment whic may be readily applied to a conventional type of sewing machine without requirin any structural changes in the machine itse f. 7

Further objects of the invention are to provide an attachment of this character which will be of simple, practical construction, which will be rugged and durable in use, which may be readily applied to or removed from a machine by .an unskilled workman, and an attachment which may be manufactured with comparative economy.

Witlrthe above noted and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter set forth and pointed out in the claims. The invention may be more fully understood from the following description in connection with the accompanying drawings, wherein Fig. 1 1s a perspective view of a sewing machine showing my improved attachment in applied position.

Fig. 2 is a vertical sectional view through the tape holder.

Fig. 3 is a transverse sectional detail through the plate which mounts the tape holder.

Fig. 4 is a sectional plan view of the gauge plate and associated mechanism.

Fig. 5 is a transverse sectional view on the line 5-5 of Fig. 4.

Fig. 6 is a sectional view on the line 6--6' of Fig. 4.

The tape feed and gauging attachment of 1826. Serial No. 101,994.

the present invention may be applied to various t pes of sewing machines, althou h I have e ected to show an embodiment o the invention in which the device is peculiarl suited for application to a small chain stitc machine of the Singer type.

In the drawings 10 represents the bed of the machine, and 11 the usual arm mountmg a head 12. The needle 13 works through the usual pre'sser foot 14 and through a needle plate 15. I have used the reference character 16'to designate a piece of material to which a binding strip isto be applied, and the numeral 17 to represent the strip or tape.

As thus far described the machine is entirely conventional, the present invention being more particularly concerned with the provision of means for mounting the tape, means for guiding the aligned edges of the tape and material 16 under the needle, and means for severing the tape at any point.

The tape holder includes a pair of vertically disposed spring plates 18, the lower ends of which are preferably integrally connected by a bridge 19 and the upper ends of which are secured together by a bolt 20 encircled b a spacer 21. A tensioning screw 22' connecting the intermediate portlons of the plates 18 serves as a hub for a floating roll 17 of tape 17, and by adjusting the screw 22 any desired tension may be applied to the roller.

The tape holder is mounted upon a plate 23 secured to the forward end of the arm 11, and to the head 12 of the machine. Preferably the plate 23 is secured by a screw 24 to the machine head, and the rear end of the plate 23 receives the upwardly presented threaded ends 25 of a U-bolt or stirrup 26 straddling the arm 11. Nuts 27 on the ends of the member 25 co-operate with the screw 24 to efiectively lock the plate 23 against movement in any direction, so that the plate will afford a rigid supporting means for the plates 18.

Plate 23 is formed with a laterally disposed arm 28 slightly channelled to receive the bridge 19 and bolted thereto as at 29. One end of the bridge member 19 may be struck downwardly and bent around under the arm 28 as indicated at 30 to further strengthen the connection between the plates 18 and the plate 21. 7

Depending from a laterally ofiset extension of the plate 23 is a channel guide 31 throu h which the strip 17 is guided from the r 1 to the needle;

To properly maintain the edge to edge alignment of the binding stri 17 and the material 16, I secure a gauge p ate 32 dlrect- 'ly upon the needle plate of the machine. This gauge plate may be conveniently .secured by binding 'screw' 33, and is. formed with an upstanding flange 34' at its free end against which t e edges of the material 16 and stri 17, abut as they are passed under the nee le f To prevent pivotal movement of the gauge plate 32 about the screw 33, the rear end of the auge plate is referably turned downward y asat 35 and recessed as at 36 to straddle the convex upper face of the machine bed 10.

In order to permit severance of the strip 17 at any point, I mount ,a knife 37 on the gauge plate, this knife passing under a strap 38 on the plate and being held by screw 39. The cutting end of the knife projects through an opening 40 in the flange 34 and extends over the tape 17. Thus, the knife end serves as a guide for the tape and is in convenient position to cut the tape by having the same moved against the cutting edges thereof at the will of the operator.

It is believed that the operation of the device will be evident from the fore oing description, but it ma be noted briefly that the positioning of t eplate 23 on the machine automatically positions the tape holder and the ta e guide 31. A roll of tape is secured in t e holder and the screw 22 adjusted to properly tension the tape. The end of the tape is threaded through the guide 31 and under the presser foot 14:. The material 16 together with the tape end is then held against the flange 34 of the gauge plate while the machine is running, so that the common inconvenience of attempting to reoaesa pro rly gaugethe alignment of the tape an the material is done away with. The tape may be severed at any time by simply manually grasping it and swinging it against the cutting ed e 37 Various changes an alterations might be 1. An attachment for sewin machines comprising a tape roll holder 0. apted to be su ported on .the arm of'the machine, said ,r0 1 holder including a pair of vertically disposed spring plates and a tensioning screw connecting them, said screw serving as a hub for a floating tape roll frictionally gripped between the plates.

2. In an attachment for sewing machines, a tape roll holder including a pair of vertical spring plates connected by a bridging piece at their lower ends, and a supporting plate including a lateral extension'around which a portion of the bridging piece is bent.

3. An attachment as set forth in claim 2, and wherein the extension is channelled to receive the bridging piece.

4. In an attachment for sewing machines, a tape roll holder supporting plate including an extension adapted to be secured to the head of the machine, a tape roll holder mounted thereon, a stirrup for encircling the arm of the machine having its ends secured to the plate, and a lateral depending channelled tape guiding extension on the plate through which the end of the tape is adapted to be threaded.

' SAMUEL HALBERGr.

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