US1287205A - Attachment for sewing-machines. - Google Patents

Description

l. BRAUDE.

ATTACHMENT FOR SEWING MACHINES. APPLICATION FILED DEC- 22. 1'91].

1,287,205 v Patented Dec. 10, 1918.

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M @Zwwtoz 5811 h alibi-new JACOB BRAU DE, OF NEW YORK', NQ'Y.

ATTACHMENT FOR- SEWING- MACI-IINE Sl '1 Specification of Letters Patent.

Patnt'edDec. 10.1918;-

Application filed December 22, 1917. S'rial-Noi208i509i I To all whomz'tmag concern:

Be it known that I, JACOB BRAUDE, a citizen sof' the 'United' States; residing at New'York; in thercounty of New York,

city and State of New York, have. invented certain new and useful Improvements" in Attachments for Sewing-Machines, ofwhich the following is "a specification.

My invention relates" to attachments for sewingmachines which are intended tobe used for sewing on a border of lacef'ori the like to a piece of materials Invari'ous classes of needlework of the finergrades it is necessary tosewa border oredge of fine mat'eria-lisuch as'laceorbraid" or the like; to a garmentor other article" such as handkerchiefs, etc;

Numerous" devices for this purpose havebeen proposed heretofore; but" they either required the constru ction of anentirely new sewing machine; or provedunsatisfactory;

The average small plantiound it too 'ex pensive topurchasespecial-machines for the sole purpose of sewing on borders; and even in the larger plants it was very inconvenient-- to take" the completed garments or articles from the operators who had sewed themyto the special-"machines which" were'to" sew on the borders or: edges. Additional compli cations in the "adjustment of wages, etc:; 1

made these special machines further -unde-' sirable. a

My invention is directed"toward provid ing a="sin'1ple'-attachment-in the form of a specialwork platewhich can be applied to various well-known type jofmachines',

which can be readily inserted and removed" and which shall'bereliable inoperation, and not tearor injure the delicate fabrics" to whi'ch'the border or'e'dging is tobe applied- Since this'littl'e attachment can be put into place almostinstantly, the regular operator" who has made the garment or the like can sew on the borders or edges, and this would" be especially convenient in small plants.

Other objects of my invention iwill be pointed out in 'the following description and drawings which illustrate" a preferred em bodiment of'my invention.

Fignre l is a perspective view of por- Y tion of a sewing machine showing my proveddevice in-position'. V

Fig. 2 1s atop "viewiof my attachment showingth'e dogs."

: FigQ 3"is" a cross-section along the line.

-3'-'-'3 ie the direction 'ofithe' arrow.

Fig. lisa cross'sectionalong-the line 1n the direction of the arrow.

Fig. 5 is a cross section along th'e line in the direction of the ia'rrow. Fig. 6 15 an enlarged "perspective view' showing the "connection: between the border and the fabric. 5 r

The attachment consists of a w'orkplate 1 having suitable openings 2and" '3 into which suitable screws can be inserted"for: connecting the attachment :to the machine The attachment has slots 4, "-5"andi6 in which-three feed dogs of therordinary and well-known: type 1 can operate: Y These feed dogs 7 and8of the ordinary and well-known 1 type maybe operated by any-'ofithe-orjdin'ary and" well-known movements; and they :are

not further illustrated because inthemsel'ves within the comprehension of any person" art. The-feeddog 20' is orethey form no part o'f-rny invention and are skilled in the similar'types A bifurcated presser foot il is provided which is also operated means ofordinary" andwell-knownconnections, and as these are withinthecomprehension' of any' pers'on skilled in the art, they do not require furtherillustration, and this statement also applies:

to' varion's other 'cOnnectiOnsHand the P-like, Wlil'O'li are notshown the dI'aWiDgSF The needle 10, connectedto the'needlebar ll,;operates"in the transverseslotrl so as to give a zigzag'stitch; At one stroke the' needle" operates at the left hand"'end of the slot"l2, and at the other at the right "hand side "of this slot,'1the tensioni'and take-up being of the welhkn'own" type." "The at;- tachment is provided with a groove13 which commences very close to theslot-g about 1/64 of an inch'awayther'efromgand ends'at the sl0t'12'at about '1/3'of the dis-f ance "from' the righthand' thereof.-= This groove'l3 hasalittle ekte'nsioml l, which is snbstantia'lly parallel to'the slot 4; This 10o extension: 14 is of uniformly varying depth; f

having its greatest depth at'its jiinctionwith slot? 13, and being of zerd'depthat" its otherend;

For the first third of its lengthfthe'groove 13' is providedwitli" zit-tongue '15-. For the first third" of its length'rthe parallel "sidewalls of the groove 13 are inclined-about 30* degrees to the horizontal; as "s hots'miniFigi 5." For the next third these walls-are I sub stantially perpendicular," and forthe last third they are inclined lfiai egrees tothezvers tical in an opposite direction to that shown in Fig. 5. The junctions of the three portions of the groove 13 may be made gradual if desired, and the change of inclination may also be made uniform throughout the entire groove starting from an inclination of degrees on one side of the horizontal to an inclination of degrees to the other side of the horizontal.

The attachment is also provided with a tongue 15 as before mentioned, whose walls are substantially parallel to the adjacent walls of the groove 13 and have the same inclination to the horizontal, and which has an overhanging horizontal portion about 1/16 of an inch in length.

The operation of my device is as follows:

The operator advances the fabric of the article 16, until its edge touches the extension ll of the groove 13. The tongue 15 acts as a guide, so that when the fabric is further advanced, it enters the groove 13, and is inclined at an angle of between 30 degrees to 45 degrees to the slots 4 and The groove 13, because of its configuration causes the fabric to be bent over, the amount of fabric bent over being dependent upon the depth of the groove. The fabric is thus fed forward by the dog 8 in front of the needle, and is also fed forward by the left hand part of the dog operating in slot- 6. behind the needle. The lace or other edging is introduced just under the needle. and so as to overlap the doubled edge of the fabric. at the other side of tongue 15, which acts as a guide. The lace is fed by the dogs 20 and 7.

I prefer to apply this atta hment to that i type of machine known as the Singer 107 w 1.,

zig-zag stitch type.

The edge of the tongue 15 which is opposite the slot 13 and which is parallel to the dire tion thereof, assists the operator in placing the fabric so that it is properly fed.

The transverse movement of the needle bar 11, that is. the transverse distance between consecutive stitches. is such that alternate stitches penetrate the fabric and the lace inst over the doubled-over edge, and the intermediate stitches penetrate the fab ric a short distance away from the edge of the lace. If desired. the outer stitches can just pass the doubl d or fo ded edge of the fabric as shown in Fig. 6. The depth of the roove is dependent u on he thickness of the fabric. whi h must be folded over sulfic entlv so s to permit the sewing together sh wn in Fig. 6.

The edge of the fabric which has been doubled over to an angle of 45 degrees is drawn closely as ainst the bodv of the fabric as shown in Fig. 6, by the action of the take-up of the sewing machine which tigh ens the thread so that the edging shown in Fig. .6 is produced.

Although any form of stitch may be used, I prefer the lock stitch.

Unce the materials have been properly set in by the operator, the action of the ma chine is almost automatic, as the fabric of the article 16 is fed forward by the dog 8 and by a part of the dog in the slot 6, and the lace is fed by the remaining part of the dog in the slot 6 and is also fed to a certain extent by the dog in slot 4, if desired.

I prefer to attach the bottom of the presser foot to the shank thereof so that there is a limited rotary movement along the line 17.

I have shown a preferred embodiment of my invention out it can be applied to other machines besides the one above mentioned. and numerous changes and omissions can be made without departing from its spirit.

I claim:

1. A work-plate having three parallel slots, the front of the middle slot being spaced from the fronts of the said other slots, so that a space is left in front of the said middle slot and between the said other slots, the said slots being adapted to receive feed dogs, a needle-hole. being located in front of the said middle slot and between the said other slots.,and a groove intermediate the said other slots and in front of the said needle-hole. the said groove being adapted to receive the edge of a piece of fabric. the rear walls of the said groove being inclined to the vertical, so as to double over the said edge of the fabric with respect to the bodv thereof.

2. A work-plate having three parallel slots, the front of the middle slot being spaced from the fronts of the said other slots, so that a space isleft in front of the said middle slot and between the said other slots, the said slots being adapted to receive feed dogs. a needle-hole being located in front of the said middle slot and between the said other slots. and a groove intermediate the said other slots and in front of the said needle-hole. the said groove being adapted to receive the edge of a piece of fabric. the rear walls of the said groove be ing inclined to the vertical. so as to double over the said edge of the fabric with respect to the bodv thereof. the said groove running at an angle to the said slots.

3. A work-plate havin three parallel slots. the front of the middle slot be ng spaced from the fronts of the said other slots. so that a spac is eft in front of the said m ddle slot and between the said other slots. the said slots being ada ted to receive feed do s. a ne dle-h e being located in front of the said middle slot and between the aid other slots. and a groove inter-' mediate the said o her slots and in front of the said needle-hole. the said roove being adapted to receive the edgeof a piece of.

fabric, the rear Walls of the said groove being inclined to the vertical, so as to double over the said edge of the fabric with respect to the body thereof, the said groove running at an angle to the said slots, and beginning substantially at the adjacent edge of one of said slots.

4. A Work-plate having three parallel slots, the front of the middle slot being spaced from the fronts of the said other slots, so that a space is left in front of the said middle slot and between the said other slots, the said slots being adapted to receive feed dogs, a needle-hole being located in front of the said middle slot and between the said other slots, and a groove intermediate the said other slots and in front of the said needle-hole, the said groove being adapted to receive the edge of a piece of fabric, the rear Walls of the said groove being inclined to the vertical, so as to double over the said edge of the fabric with respect to the body thereof, the said groove running at an angle to the said slots, and beinning substantially at the adjacent wall of one of said slots, and terminating at the said needle-hole at 5 the distance from the.

right hand end of said needle-hole.

5. In a sewing machine, a work-plate having a groove for folding over fabric, the front of said groove having its walls inclined to the horizontal, and the rear of said groove having its walls inclined in the opposite direction to the horizontal.

6. In a sewin machine, a work-plate having a groove or folding over fabric, the

front of said groove having its walls inclined to the horizontal, and the rear of said groove having its Walls inclined in the opposite direction to the horizontal, the said Work-plate also having a tongue adjacent the front portion of said groove, the said tongue having walls inclined at the same angle as the adjacent Walls of the groove.

7. In a sewing machine, the combination of parallel feeding means, stitching mechanism including a needle, capable of being moved up and down and also in a lateral path to produce a zig-zag stitch, the said feeding means being located at opposite sides of the said lateral path, and means for folding over a piece of fabric, said folding means being located in front of the needle and intermediate said feedin means.

8. In a sewing machine, the com ination of a work-plate having a needle slot; stitching mechanism including a needle, capable of being moved up and down and from side to side to produce a zig-zag stitch, means for folding the edge of a piece of fabric located in front of said needle and terminating intermediate the ends of said slot, and means for feeding said folded fabric, and an edging to said mechanism so that the folded fabric and the edging are fed across said slot intermediate the ends thereof, and a series of alternate stitches pass through said fabric, and the other alternate stitches pass through the edging only.

In testimony whereof Ihereunto aflix my signature.

JACOB BRAUDE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0."

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