Патент USA US2124714код для вставки
July 26, 1938. 2,124,714 D. H. ROSENBERG MITER FORMING DEVICE FOR CURTAINS AND THE LIKE Filed Nov. 1'7, 1937 3 Sheets-Sheet 1 - ' ¢ NVENTOR. pay/d hi?’asmbe ATTORNEY. Juli’ 25, 1933- . _ D. H. ROSENBERG ' 2,124,714 MITER FORMING DEVICE FOR CURTAINS AND THE LIKE Filgd Nov. 17, 1937 3 Sheets-Sheet 2 INVENTOR. _ BY David H. Rosenberg. ?aaiwq, g ATTOR_NEY. July 26, 1938. D. H. ROSENBERG ' 2,124,714 MITER FORMING DEVICE FOR CURTAINS AND THE LIKE Filed Nov. 17, 1937 :s Sheets-Sheet s @117 ~ E]. ‘ 6a / 62’ /é/ - ,47 (7/ 7 L if“ 254/- .24} J J4 5/4‘, \\ 32 as - ___d az’ ac ‘ I ' 34' INVENTOR. Dav/'0’ //. I‘FoJE/Ybe/y BY WM MWM ATTORNEY. 2,124,71l5 Patented July 26, 1938 UNITED STATE S1 PATENT OFFICE 2,124,714 . MITERi FORMING? DEVICE FDR‘ CURTAIN S A‘N-D?THE LIKE" David‘. H. Rosenberg, New York, N. Y. Application-November 197, 1937; SeriaIJNo; 174,967 8. Claims. (0].. 112-437) This invention relates to miter formingdevic'es for curtains and-other'textil'e fabricarticles while they are'being sewn‘, and- has for one of‘ its ob’-v jects the provision of a device referred'to com‘ 5' prising a border, frame, or band-forming- member and means associated therewith for forming a miter joint at the corners of such articles; Another object of’ theinvention is the provision \of such a device including a miter forming or 10*" shaping member or guide and pivotally mounted means for folding the textile'material about the miter forming or shaping guide. A further object of the invention is the provi sion of a device of this character which the 15* miter joint folding means may be slid’ out- of contact with the joint-after same has been-formed without in anyway disturbing;thesaidijoint. A still further object‘ of‘ the invention is the provision of such a device which will turn the 20k raw edges of the‘ band orv border material" in wardly to form a neat or clean edge where they are sewn to the curtain or other textile‘ article. Yet another object of ‘the invention is thepro vision of a miter forming device in' which‘ the 25% miter forming or shaping‘ shell or gage-maybe shifted into and out of operati'veposition. Still another object of the invention is the‘ pro vision of such a device in which the; border or frame forming guide or members maybe pivotally‘ 30? or hingedly connected to each other for‘conveni-l ence in initially inserting‘ the border‘ forming fabric. Another object is to produce-a device of? the character described’ in which themaximumsim» 35:1plicity of construction‘ and operation is secured‘. Other objects and advantages will appear 'as'the nature of the improvementsis better understood, the invention consisting substantially in the novel arrangement and co-relation of‘ parts hereinfull'y 41): described and illustrated in the accompanying drawings, wherein similar reference characters are used to describe corresponding parts through out the several views, and then ?nally'poi‘nt'ed‘out' and speci?cally de?ned and indicated‘ in the ap 45? pended claims. The disclosure made the basisof' exemplifying the present inventive concept suggests a practical embodiment thereof, but the invention7 is not to be restricted'to the exact details of this dis 50\ closure, and the latter, therefore, is to be under stood from an illustrative, rather than1 a>restric tive standpoint. In the accompanying‘ drawings: Figure l is a top. plan view‘ of‘ one: form offmy' 55‘: improved miter forming d'evice', showing'th'etmiteri forming shell in; the normal ineffective position in~'full-1lines=, and’ also showing same in’ dot and dash‘linesineffective miter forming position; Figure 2 is an'inverted' end View‘ of the device looking'from' the top of Figure 1; 5 Figure 35 is a‘ perspective view of same partly broken away; Figure 4 is a crosssectional view' taken on line 4'—4l, Figure 1:; Figure'5‘ is a; fragmental view in side elevation 10‘ showing the miter folding or forming ?ngers within the'i'nterior of the‘miter forming shell as shown'in- dot and dash lines‘ Figure 1; Figure 6'is a cross sectional view taken on line 6-5' Figure 1‘ showing‘the fabric folded about 1‘5i5 themiter forming shell‘; Figure '7 is a plan view of the-miter forming shell; Figure'8 is a side view thereof‘ looking from the right of‘ Figure-7; 20> Figure 9v is a top- plan view-of a- modi?ed form of my invention; Figure l?'is'a" side view thereof looking from the right‘ of Figure 9v and‘ Figure 11 is’an end view'thereof looking from 25% the bottom of Figure9. Referring‘now to Figures'l to 8 of the drawings inidetail l5‘ indicates the'borcler forming shell and guide of my improved‘ miter forming device, the said shell comprising an outer U shaped‘ wall I6 30; and‘ an inner U shaped‘ wall I’! preferably bent therefrom, the said inner wall being spaced from the outer wall to form a U shaped channel l8 into‘ which the. band or border forming material l9‘ maybe threaded‘ or inserted. At‘ each end of 35?. the channel. there is provided an L shaped strip or member. 20‘for bending the raw edges of the band forming. material inwardly to form turned over. edges Z‘I'Where the border is secured or sewn to‘ the curtain material 22' (see Fig. 4) . Slidably yet frictionally mounted in guideways 23" is a'shell 24 which issubstantially U shaped in cross’ section and the rear end thereof being cut at an angle to form- acute-angular folding edges 25; A handle26~issecured to theupper end of the 45-1 shell-'24iby'whi'ch1it‘ may he slid to and fro in the shell‘ l<5=between stops 2? and 28. The handle 26 protrudes outwardly from. the shell. l5. through an-elongated. slot29'at' the right hand side of the device, the'said'slot being formed between guide- 50\ ways23; At the left of the'device and.v extending longi tudi'nally thereof there is slidably mounted‘ in a pair‘offspaced. apart bearings 39¢ a rod 3| which’ preferably'rectangular in cross'section. At the 55’ 2 2,124,714. rear end of the rod 3| there is pivotally yet some and an upper section 62, the said sections being what frictionally mounted a bifurcated block 32, the said mounting being provided by means of a pin 33 passing through the said block and a boss 34 forming the lower end of the rod. The block is provided with a handle 35 by which it may hingedly connected at 63, the said hinged joint be rotated or swung about its pivot 33 to bring the miter folding ?ngers or pins 36 into the in terior of the miter shaping shell 24 to bend the border material l8 inwardly' about the edges 25 and against the base 24a to form the miter joint 45 (see Fig. 1). If desirable the base 24a may be slotted as at 4! to permit the border form ing material to be fully pressed rearwardly against the base 24a. A pair of stops or collars (l2 and 43 are provided on the rod 3|, the collar 43 being normally drawn against the rear bear ing lug 39 by means of a spring 44 one end‘ of which may be secured to a pin 45 carried by the front lug or bearing 30 and the opposite end of the said spring may be secured to a pin 46‘ carried by the collar 43 which is secured to the rod 39. The entire device may be adjustably mounted on the sewing machine by means of screws 47 passing through elongated slots 48 in a base or extension 49 secured to the lower wall portion of the outer wall l6. In practice when sewing the border E9 to the curtain material 22, the edge 5|] of the said our 30 tain is inserted between the upper and lower layers of the said band and the curtain and band are then sewn together by a row of stitches 35 40 45 50 55 5! from the lower edge 52 of the curtain‘to the upper edge 53 of the said curtain. When in this position the bar 54 carrying the presser foot 55 is lifted up with the needle 56 penetrating the curtain and border material, and the miter shap ing shell 24 is then moved to assume the dot and dash position shown in Figure 1. With the miter shell in its adjusted position, the block 32 is swung about its pivot 33 to bring the ?ngers 3'6 into their upper or dot and dash position. Dur ing the swinging of the said block and ?ngers the border material is folded inwardly of the miter shell and bent over the angular edges 25 to form the joint 45. The rod 3| is then pushed rear wardly of the machine or downwardly as indi cated by the arrow 59 Figure 1 against the ten sion of the spring 44 until the ?ngers 36 are fully withdrawn from the miter joint. The block 32 is then swung to its normal ineffective position and the spring 44 is then permitted to return the rod to its normal inoperative position. If desired the spring 44 may be omitted and the rod may be manually moved forwardly and rear wardly. It will be understood that during the formation of the joint 40 the curtain 22 is moved until the horizontal edge 52 assumes the vertical position indicated in dot and dash lines at right 60 of Figure l. The edge 53 also assumes a vertical position and it is then inserted and sewn to the border l9 along its entire length after which the mitering operation is repeated and so on until the entire curtain is completed. 65 _ t is to be understood that the curtain material does not pass through the shell, but the leading end edge thereof is inserted between the upper and lower layers of the folded band somewhat beyond the rear end of the outer shell, and as 70 the sewing progresses the side edge of the curtain material is manually fed or inserted between the band layers by the operator. In Figures 9 to 11 I have shown a modi?ed form of my-invention wherein the band or border 75 forming shell 60 comprises a lower section Bl being provided so that the device may be opened up for the insertion or threading of the band or border forming material. The lower section 6| may be provided with bearings 64 in which the rod 3W is slidably mounted, the miter forming ?ngers 36 being pivotally mounted at 33 as in the form above described. The miter shaping or forming guide 24b is in the present instance sta 10 tionary instead of slidable and is formed by means lof an upper wall or extension 64EL bent inwardly from the lower wall BI and by a similar exten sion 65 bent from the upper wall 62. The said extensions are spaced from each other and from 15 their respective sections to form a channel 66 in all respects similar to the channel l8. L shaped “strips 5'! are provided in the right hand of the channel 66 to provide means for folding over the edges of the band forming material where it 20 is sewn to the curtain. The form of my invention just described is precisely the same as that shown in Figures 1 to 8 with the exception that the shell sections are hingedly connected to each other and the 25 miter forming guide is stationary instead of movable. To form the miter joint, the ?ngers 36 are operated to fold the fabric about the angular end edges 25a of the extensions 64 and 65 as 30 in the form of my invention previously described. Slots or cut outs 68 are provided in the miter shaping guide so that the device may be moved close to the sewing machine needle. From the foregoing it will be seen that I have 35 provided a simple yet eiiicient device for form ing miter joints on fabric articles such as our tains, handkerchiefs, table cloths and the like, the use of which will save a great deal of time and insure a uniformity of such joints through 40 out the entire article or multiplicity of articles being sewn. Having described my invention what I claim as new and desire to secure by Letters Patent is: 1. Amiter joint forming device for fabric arti 45 cles, said devicebeing adapted to be secured to a sewing machine and comprising a band folding and guiding outer shell, an inner shell having a mitered end, means for folding the band mate rial about the said mitered end to form a miter 50 joint on the band, said means comprising pivot ally mounted ?ngers adapted to be swung into the interior of the inner shell at the mitered end thereof, and a slidably mounted rod upon which the said fingers are carried for withdraw 55 ing same from the interior of the inner shell after the miter joint is formed. 5 2. A miter joint forming device for fabric arti cles, said device being adapted to be secured to a sewing machine and comprising a band folding 60 and guiding outer shell, an inner shell slidably mounted in the outer shell for moving the said inner shell towards and away from the sewing machine needle, a mitered end on the said inner shell, and pivotally mounted means for folding 65 the band material about the mitered end to form a miter joint on the said band. 3. A miter joint forming device for fabric arti cles, said device being adapted to be secured to a sewing machine and comprising a band folding 70 and guiding outer shell, an inner shell slidably mounted in the outer shell for moving the said inner shell towards and away from the sewing machine needle, a mitered end on the said inner shell, pivotally mounted means for folding the 75 2,124,714 band material about the mitered end to form a miter joint on the said band, and a slidably mounted rod upon which the said means is car ried as and for the purpose speci?ed. 4. A miter joint forming device for fabric arti cles adapted to be secured to a sewing machine, said device comprising an outer shell substan tially U shaped in cross section, an inner shell spaced from the outer shell forming a band fold ing and guiding U shaped channel between the walls of said shells, means at the ends of the U shaped channel for folding the edges of the band, a substantially U shaped shell slidably mounted between the walls of the ?rst mentioned - inner shell, a mitered end on the said slidable shell, and pivotally mounted means for folding the band material about the mitered end to form 3 thereof, a slidably mounted rod upon which the said ?ngers are carried for withdrawing same from the interior of the inner shell after the miter joint is formed, and a spring for returning the ?ngers to normal position after being with drawn from the joint. '7. A miter joint forming'device for fabric arti cles, the said device being adapted to be secured to a sewing machine and comprising a lower shell section having a lower and upper wall spaced from each other to form a channel sub stantially one-half of a U in cross section, an upper shell section formed similarly to the lower section and hingedly connected thereto, the upper wall of the lower section and the lower wall of the upper section forming inner walls and ex tending beyond the end of their respective outer a miter joint on the said band. walls, a mitered end on each of the said inner 5. A miter joint forming device for fabric arti cles adapted to be secured to a sewing machine, said device comprising an outer shell substantially U shaped in cross section, an inner shell spaced from the outer shell forming a band folding and guiding U shaped channel between the walls of said shells, means at the ends of the U shaped channel for folding the edges of the band, a sub means upon which the pivotal folding means is carried, and spring means for retracting the said slidable means after the material is folded about the mitered end. 8. A miter joint forming device for fabric arti walls, pivotally mounted means for folding the fabric material about the mitered end, slidable cles, the said device being adapted to be secured to a sewing machine and comprising a lower shell section having a lower and upper wall spaced on the said slidable shell, pivotally mounted means ' from each other to form a channel substantially one-half of a U in cross section, an upper shell 30 30 for folding the band material about the mitered end to form a miter joint on the said band, and section formed similarly to the lower section and a slidably mounted rod upon which the said hingedly connected thereto, the upper wall of the pivotally mounted folding means is carried for the lower section and the lower wall of the upper stantially U shaped slidably mounted shell be tween the walls of the inner shell, a mitered end purpose speci?ed. 6. A miter joint forming device for fabric arti cles, said device being adapted to be secured to a sewing machine and comprising a band folding and guiding outer shell, an inner shell having a mitered end, means for folding the band ma terial about the said mitered end to form a miter joint on the band, said means comprising pivot ally mounted ?ngers adapted to be swung into the interior of the inner shell at the mitered end section forming inner walls and extending be yond the end of their respective outer Walls, 35 means on the said extending walls for folding the edges of the fabric, armitered end on each of the said inner walls, pivotally mounted means for folding the fabric material about the mitered end, and a slidably mounted rod upon which the 40 said pivotally mounted folding means is carried as and for the purpose speci?ed. DAVID H. ROSENBERG.