US2004080A

US2004080A - Textile hemstitching machine

Info

Publication number: US2004080A
Application number: US618292A
Authority: US
Inventors: Edward B Roby
Original assignee: S AND R FOLDING MACHINE CO Inc
Current assignee: S AND R FOLDING MACHINE CO Inc
Priority date: 1932-06-20
Filing date: 1932-06-20
Publication date: 1935-06-04
Anticipated expiration: 1952-06-04

Description

June 4, 1935.

EB. ROBY TEXTILE HEMSTITCHING MACHINE Filed June 20, 1932 3 Sheets-Sheet l INVENTOR ATTORNEY June 4, 1935. E. B. ROBY TEXTILE HEMSTITCHING MACHINE Filed June 20, 1932 S-Sheets-Sheet 2 men-TORNEY June 4, 1935,

www MMNN *ATTORNEY Patented June 4, 1935 Texter, @estuviera Edward B. Roby, New York, N. y., essigner'te 'rhe S and R Folding Machine 00;, In`cL,'=New York; N. Yi; a 'corporation of NewYork f i Applicaties June 20, 1932, sierieine. 618,292, 7 Claims. `(o1. nz-zy Among the principal. objects which the present inv Utifoifi lias'in vievvV are "Ilo avoid imposing strain 'onlthetextile during the'operation of the machine; tdaeiiitat-ehlthe operation'of feeding 5 the'iate'rial to' thefr'n'achine; to'insure guidance of the inateryialin being stitched; to 'synchroni'zethe feeding vof "tylieniaterial vvtl the operation Iof the stitching mechanisnifan'd' to'provide nieans for st'ofpping'tlie Stitching thread iS blOkilll.

Eigure l is a side elevation ofa machine Vconstructed' and arrange'djin accordance' lwithl the present inventionQi a portioi'of the lieadfof. aI

o, mac 'ne' used-'inconjunotion with said machine being shown. l

Figure 2 isa top plan view of the same, the bed4 of the sewing Vmeehanisrn being shown, the

sewing mechanism however being' retrieved.`

Figure '3` isan end elevationY on enlarged scale oi'ftlie machine showing, in broken lines, stitching' mechanism employed' conjunetion therewith.

ligur'eli is a detailed View on enlarged scale showing the head Voff the stitchingmchanismf Egure 5`is 'a detailed viefw on enIarg'edscale shovvinga portionof the tension andg'uiding dei Vices` employed in said machine.

Figure 6 is a front elevation 'o'f the same. Y Figure? is'a detailedviw in cross section show-` ing"I theA said tension devices inoperative position and a piece machine. A'

Figure 8 is a perspeetive v ievvv in detail of a fragment of the and guiding deviees.

35 igure'llfis adetailed- View on enlarged scale ShOWii-Stlie releasing mechanisme* stopping the stitching mechanism in the event oi breakage of the stitchingk thread.

Figure 10 is e perspective View of, theplateand 0 other parts shown for producing the hem to the article;

Eigures il, 12, 13 and le vare sectional4 views and lli-fill respectivelyof Figure 10;

Figure' l5is a plan of a portion ofthe plate and showing a nieansfor steadying the material while i1@ @heee felling meeheie'rgifana when the means er the tapes@ with fet-speed reducing @feesie ses@ meer we" principally designed for ibeiedees'or l which are to be hernmed 4andV more particularly forlfiandling'suhlarticles as liandlerchiefs. Wlin'handling ha kereliieis, "thesef'are disposed, on the elongated talolefshown inthe draw? ings asheving"elong'atedside bers 2o; The side 5 bars ZDforrn a portion of the table having the' bdj Zion which isf secured a` thin'metalfplate 22. The rnetal plate 22 throughout the inajo'r portion of .its lengtl serves to" 'support the battery'oftap'es 23 v vvliieh constitute the carriers" for" the inat'eril' 10 enti 'electric' "motory 28 'which' conne 'The transmission devices from 20` to 3l are so arra-Iigedtliat a'slippage isv 'usually "elle tedi'nthe event" of 'any' uncalul'ated' strains being 'iinpos'd uponthfedrum Qrshaft 3|, 'the purpose' di," the 30 whole meenemen; thus" fer deseribeu'ibeing to camine* mreriereeing' treated mand un yerthe footI orfY the sewingV machine' Without "infi'po ing' any; pullingfstraifupenlthe material; The v of thematerial" will therebylbeiniluencedor d'0" 35 trolled by ltheopeiation offthe feeding mechanism or foiotof the sewingmachinefr" The plateV 2? has an edge'extensionvwhich is rolledupon itself; as seen best 'Figure 10 of the drav/ ingsl'toffoim a sinuous guiding passage` be* 40 ginningwith the "Uf-shaped' entrance 33^aid`efnd` ing with the triple eonvoluti'ns'. 'Thedelivery @nu f the'ferminus'eftheedge thus remedie" dr-` rectly adjacent thefeeding foot 35 and 355er the sewingmachine. 'e 1 9* ff 45 The'lmaterial as delivered from the rolled edge is folded' as shownsubstantially in Figure 162` e that is, the edge 'of the material-'is folded' upon itself to form a three ply edge section.' Tliefoldrl ed portion is stitched `luy the sewing mechanism 50'` as. ndieel in Seid Figure 16, the stitches' renter# ing thematerial adjacent the extreme edge of the flled'peltl Qi the body Qi the materiel as hemmig such materiels. Y

Ybest in Figures 5 to 8 inclusive.

members are grouped as shown in Figures 5 andY posed upon the folded edge, I provide a special tape, 3l. The tape 3l' is passed through the spiral passage in the edge of the plate 22 together with and in supporting lrelation to the fabric.

It will be noted by reference to Figures 10, 1l and l2, that the extreme edge A of the material B, is first guided by the upstanding edge 33 which serves as a guide forV the said material. From this position, the clot-h enters the end 33 of the rolled edge of the plate 22. t this stage it will be noted that the tape 3l' is held between guide rails 39 and that the edge A of the material B overhangs or extends beyond thetape 3l'. As explained later, however, the tape 31 is moving with.l and supporting the material B in' conjunction Y with the tapes 23 above referred to.

As the edge A and the tape 3? arenow advanced, the edge A is overturned'as seen best in Figure 13 ofthe drawings, the tape 3l being now extended partly under the folded edge A. As the material B andtape 3i' further progress they are folded into the position shown in Figure 14 of the drawings where it will be observed that the tape 31 now lies above the material B and the edge A thereof.

When and as the folded material and the tape 3l' are delivered from the convolutions Sil, they will be found to be disposed as shown in exaggerated scale in Figure 17. It is in this condition that the material is delivered tothe sewing mechanism where the stitches are driven through the folded edge C of the material B back of the edges of the tape 3l.

As can be seen in Figure l0 of the drawings, the

- material is delivered from the feed dog 35 and the To guide the material B, and more particular-v ly the'portion thereof in which the hem is to be formed, I provide a series of weight members lili. These members are arranged in groups as shown When these 6, they usually rest upon the tape 3l", or the material resting thereupon.

The grouped members form a smooth surface under which the material is drawn by the various tapes 23 and 3l.

The members dit overlap each upon its neighbor and each is mounted upon an extension rod 4l.

The rods (Si are each provided with a Ypivot bearing 122, an extension dit, thereon extends over and underlaps a similar extension of the pivot bearings of the adjacent members.

The pivot a carrying bar Ml, and the various members are thereon arranged so that whenever one of the arrangement for the operation of the *machine 'drawings when the power end of the arm i5 is elevated,`

bearings l2 are suitably mounted on The purpose of this actionis'to VIn the present instance, provision is made for stopping the sewing machine and the feed of the `material whenever the sewing thread breaks.

To this end a brake arm i5 is pivot-ed at 56 on a bracket el, as shown best in Figure 3 of the A brake shoe i8 is so disposed that the shoe VengagesV the surface of a clutch head 49. The clutch head Si is arranged to engage clutchwise the gear 3B which in turn has a. driving engagement through the tape 5o with the head of the sewing machine. ing a part of the arm'd is arranged to retract the clutch head 59 from the cone or other memlt is obvious that Vthe switch member 51 is i grounded or connected to one side of the source of electricpow-er While the swinging switch E5 is connected by means of a wire with the Vother side of said source of electric power. The switch 55 is normally heid out of engagement with the switch member 5? by means of the thread with which the stitching is being accomplished. Whenever this thread breaks, the switch member 5t is allowed to swing over against the member 5l with the result that the circuit energizing the magnets de is completed to permit the same to rock the lever on its pivot bearing to retract the plate 53 from engagement with the lug extension 54 thus releasing'the lever 52 to permit the spring 59 to elevate the outer end of the arm t5, resulting Vin retracting the clutchV i9 while applying the brake thereto.

To steady the material as and while being sewed, provide a weighted ball te. This is held loosely in the bridle 6i. The ball Si? is so mounted in the bridle @i as to roll freely therein, thus avoiding any stoppage of the operation of the ball which Vmight operate as a drag on the material.

From the foregoing it will be seen that a machine constructed and equipped as herein disclosed can be handled'by an operative, who at the beginning of the days work, will lift the weight members 'i153 preferably throughout they entire line and up to the right of the end 33 of the rolled` ycarrying the material into and through the rolled edge of the plate 22 which might be called the hemmer.

After the material passes the headV of the sew 2,004,080. e ing mechanism, the tape 31 is spread to avoid.

Y Wise, the machineis not sufficiently loaded or supplied with 'the' articles to be hemrned, the operator can lift the weight members 4Q at any point, thereby also lifting all of the weight members 40 at the right ofthe oneV directly engaged so that the material can be placed in position as desired.

It will also be noted that the tape 31 being constructed of relatively firm and strong `material, serves to hold the material in desired position during the hemming thereof.

It will also be noted that by reason of the employment of the tapes 23 and 31, the material is at all times fed to the sewing mechanism without strain or distortion of any kind.

I claim:

1. A machine as characterized embodying a stitching mechanism, elongated guiding means for delivery of fabric to said stitching mechanism which will triple fold said fabric upon itself adjacent the edge thereof, and conveying means for supporting said fabric through said guiding means to relieve saidfabric from any pulling strains, said means embodying a relatively narrow tape turned upon itself to'enfold the fabric within and during the passage through said guiding means to relieve said fabric` of any pulling strains.

2. A machine as characterized embodying a stitching mechanism, elongated guiding means for delivery of Vfabric to said stitching mechanism which will triple fold said fabric upon itself adjacent the edge thereof, conveying means forY supporting said fabric through said guiding means to relieve said fabric from any pulling strains, said means embodying a carrying tape passing through said guiding means in close contact with the folded edge of said fabric, and means for feeding said tape and fabric to said stitching mechanism in harmony with the operation thereof, said means embodying the feeding mechanism of said stitching mechanism, said feeding mechanism being operated directly upon said tape.

3. A machine as characterized embodying a stitching mechanism, elongated guiding means for delivery of fabric to said stitching mechanism, adapted to triple fold said fabric upon itself adjacent the edge thereof, conveying means for supporting said fabric through said guiding means to relieve said fabric from any pulling strains, said means embodying a carrying tape passing through said guiding means in close contact with the folded edge of said fabric, and means for feeding said tape and fabric to said stitching mechanism in harmony with the operation thereof, said means embodying the feeding mechanism of said stitching mechanism, said feeding mechanism being adapted to operate directly upon said tape, and a driving mechanism for said tape embodying a prime mover and supporting rollers operatively connected therewith by means adapted for adjustment to yield to strains thereon not predetermined.

4. A machine as characterized embodying a stitching mechanism, elongated guiding means for delivery of fabric to said stitching mechanism adapted to triple fold said fabric upon itself adjacent the edge thereof, conveying means for supporting said fabric through said guiding means to relieve said Vfabric from any pulling strains, said means embodying afcarryingtape passingl through said 'guiding means in close contact'with the foldededge of saidfabric, and Ineans'- forjfe/eding` said tape and'fabric toI said.` stitching mechz'inisin` in 'harmony with the opera-I tion thereof, said "means embodying thefeeding mechanism of said stitching mechanism, Vsaid feeding mechanism being adapted to operate directly upon said tape, a driving mechanism for said tape embodying a prime mover and supporting rollers operatively connected therewith by `means adapted for adjustment to yield to strains thereon not predetermined, and a conveying apron disposed in parallel relation to said tape and mounted on said rollers for conveying the material past said i stitching mechanism synchronously with the movement of said tape.

5. A machine as characterized embodying a stitching mechanism, elongatedguiding means for delivery of fabric to said stitching mechanism adapted to triple fold said fabric upon itself adjacent the edge thereof, conveying means for supporting said fabric through said guiding means to relieve said fabric from any pulling strains, `said Vmeans embodying a carrying tape passing through said guiding means in close contact with the folded edge of said fabric, means for feeding said tape and fabric to said stitching mechanism in harmony with the operation thereof, said means embodying the feeding mechanism of said stitching mechanism, said feeding mechanism being adapted to operate directly upon said tape, and a driving mechanism for said tape embodying a prime mover and supporting rollers operatively connected therewith by means adapted foradjustment to yield to strains thereon not predetermined, and a conveying apron disposed in parallel relation to said tape and mounted on said rollers for conveying the material past said stitching mechanism synchronously with the f movement of said tape, said apron embodying a plurality of endless belt tapes disposed in parallel relation to the first mentioned tape and mounted upon to be controlled by said rollers.

6. A machine as characterized embodying a stitching mechanism, elongated guiding means for delivery of fabric to said stitching mechanism adapted to triple fold said fabric upon itself adjacent the edge thereof, conveying means for supporting said fabric through said guiding means to relieve said fabric from any pulling strains, said means embodying Va relatively narrow tape within and during the passage through said elongated guiding means to relieve said fabric of any pulling strains, and tension means slidably mounted adjacent and parallel with said guiding means, said tension means comprising a plurality of weighted members adapted to be in engagement with said fabric whereby the fabric will be in constant contact with said tape.

7. Amachineas characterized in combination with a stitching mechanism comprising `an elongated table having a` bed and side arms, a metal plate supported by said bars and extending substantially the entire length of the table, brackets l projecting from the ends of the said table and.

en said plate shaped to permit entry' f one tape and an edge of the fabric the entry point of said,

Y extension being U-shaped and terminating at its other end with triple convolutions whereby said 5 fabricis fed to the stitching mechanism with a three ply edge, and a plurality of Weighted mem'-