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US1785412A - Label-sewing machine - Google Patents

Label-sewing machine Download PDF

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Publication number
US1785412A
US1785412A US45861A US4586125A US1785412A US 1785412 A US1785412 A US 1785412A US 45861 A US45861 A US 45861A US 4586125 A US4586125 A US 4586125A US 1785412 A US1785412 A US 1785412A
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Prior art keywords
label
machine
presser foot
sewing
foot
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US45861A
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Percy W Hatfield
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Winship Boit & Co
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Winship Boit & Co
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Priority claimed from US690359A external-priority patent/US1672888A/en
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B3/00Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/12Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing
    • D05B3/20Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing labels

Definitions

  • the present invention deals with the problems presented by'these conditions, and it Vhas for its general object to improve lthe construction of sewing machines with a view to substantially eliminating the skill now required in sewing on labels, produng better land more "uniformv results, and to devising a mechanism for performing ⁇ this work more rapidly than prior machines.
  • the invention is especially concerned with" mechanisinfor severing the threads when the sewing operation has been completed.
  • Fig. .3 is a plan lview ofthe machine shown tion,of a portionof the work feeding mechanisnfi;y
  • Fig. 5 is a-fragmentary View of one ofthe parts shown in Fig. 4; y
  • F'g. 6 is'aview, partly in end elevation the label holder ⁇ and adj acenty parts
  • Fig. 12 is ,ay front ⁇ diagrammatic. ⁇ view showing the relationship of the label holder' to the needles'and adjacent parte; c
  • Fig. r13 isa perspective view showing a label sewed on' a garment bythis machine
  • Fig. ⁇ 14 is a side elevation of the'lahel Fig. 7 is' an end view showing a ⁇ nof'rtion of b elevation of the'more important parts of. a sewing machine ern- '2o cross section,"showing partof the operating and partlyin vertical crosssection, showing] w holder and the parts immediately cooperating therewith; and 1 v Fig. 15 is a side elevation showing the manner inV which the thread ⁇ is held after being severed.
  • the machine shown includes thek usual ⁇ arm2, Fig. 1, rising from a work supporting table for .plate 3.
  • the sewing instrumentalities includel two needles 'l1-4 spaced apart and two shuttles mounted below the plate 8 to cooperate with ⁇ the respective,needles.Y
  • each shuttle Associated with each shuttle is a rotary hook of these-called vertical? type whichrotates in a horizontal plane, one lof these shuttle andghook arrangements being indicated at 51n fFig;l 6.
  • a rotary hook of these-called vertical? type whichrotates in a horizontal plane, one lof these shuttle andghook arrangements being indicated at 51n fFig;l 6.
  • this'machine is constructed,.ar.
  • the ymachine includes a special presser foot which comprises 4a body 6, Figs. k6, 9 and The body' is pivoted at Seto a bracket 10, and this entire bracket, and the parts carried thereby, are suspended normally from a presser foot head 12.
  • the connection between the' parts 10 and 12 includes astud 1l that eX- tends forward froma portion' of the bracket 10', and a plate 15 which'is screwedto Athe front side of the head 12 and has a short slot therein -to receive the stud 14', as best shown in Fig. 1.
  • the presser foot head 12 is sevcured on the lower end of the usual presser foot shaft or post z 16, Fig. ⁇ 16, which is supported vertically in the head of the machine and is normally pressed downwardly'by a.
  • vhoriz'ontal'plate 27 which lies Vbetween-the ,knurled lpresser foot Vsections '7;7 and is riveted to a U-shaped bracket 28,
  • a bracket 34 v which is secured to ⁇ 'the-.part 6 by screws.
  • the label L is placed on'the-.plat'e 27 and sli-ppedunder the bracket 341, *whileV these two parts are held away from, eachother, or in their labelreceivingrelationship, by the' spring 33.
  • the central portion of the bracket 311 is cut away,
  • The' part 30 forms a back stop ⁇ or gage for the label andprevents itfrom being ositioned too farbackin the labelholder.
  • a 1U-shaped spring member 36 is secured to the presser foot 6 Vby a screw 37 and this member is providedwith two down-turned ends'38-38, 'Figs-8,9 and 12, whichlar'ellocated atV opposite sides of the bracket Sflwhere they serve to gage the positions Jof -the ends ofrthe label when it is insertedin'the label-holder.
  • the cam is mounted on a stub shaft andlis rotated step bystep by a ratchet clutch mechanism of a form commonly used insew-V ing machines and which is best shown in Fig. 4.
  • This mechanism j comprises c clutch arms 52-52 that grip the rim of the cam 5l and bear against a centralhub member 53 havwith ⁇ a bell crank lever 56 having a forked end which straddles an eccentric 57,*F ig. 7, se-
  • each move-V ment thusimparted to the cam, and c onsequently to the presser foot, may be varied by adjusting the link in the arm 54, and
  • part 60 Fig. 4, grips the rim of the cam 51 upon each backward movement ofthe parts 52-52 and prevents the cam ⁇ from ⁇ rotating in a reverse direction.
  • the cam l5l 1s doubley and makes half ⁇ a revolution in 'each cycle of the machine.
  • the cam 51 also is provided with a dwellat the beginning and end of the feed- 'ing movement so that when the machine is ⁇ first started it will make two superposed stitches before any feeding movement "of the work begins, and at the completion of the sewing or stitching operation it will again pause while the stitching mechanism contin-v ues to operate so that two more superposed stitches will-be made at the end of each seam.
  • Thesesu-perposed stitches form, .in ⁇ effect, a knot and eifectually prevent the thread from ravellins .Y Y
  • This lever has a brake 84 .formed on its-opposite end arranged to engage thesurface of the fast pulleyl 62 to reduce the speed ofthe'machine beforethe pin 78y strikes thes'pring pressed member 77.
  • presser foot is'being takenup.
  • a heavy wire or small rod 93, Fig. 6 is secured to the sleeve 18 by a screw 94 and itslower end is bent at right angles and projects through a hole in a-plate 9,5'which is pivoted on the presser footvheadvat 96.
  • dog 97 is 4adjustably secured -toV the plate95 by means ⁇ offa screw98and as the 'presser foot head islifted the upper end of this dog engages a roll 99 which is secured on the side of a fixed bracket 100. 'llhis engagement, results, as the presserV foot head continuesv torise, in tipping the plate .95 inlafclockwise direction, Fig. 6, the rod orv wire 93 yieldingsufficiently to permit thisjinovement--v
  • the rearward-tend of the plate 95 is slottedor forked, as shown at101, to receivepa lrod 102 that connects two bell crank levers 1035-103; which are pivotedwon opposite sides of the ⁇ bracket 10,-fas clearly shown in Figs. 6 and8.
  • Theisaine act ofi lifting the presser foot also is"utili'zedll to 'operateV the mechanism for cutting andV rpsitioning the shuttle thread.
  • the cutter Referring'to igs. k12,6 and 11, the cutter is indicated at 104 andthe movable element of thej'thread positioning device at 105.
  • Both offthese' partsV are :adjustably secured by ⁇ means o'ffajscrew 106,.Fi'g.,11, to a bar 107 whifcli'isi'nounted on an arm 108.
  • the connections ustl described will operate to move the cutter '104 and the part 105'- forward, the cutter sweeping across the needle holes in. the-plate 114 and severing the shuttle threads at said holes.
  • the part 114 serves as a shearing plate and cooperates with the cutter 104 in severing the threads.
  • each shuttle thread When the critter 104 and the positioner 105 are withdrawn, the end portion of each shuttle thread is leftin-itsv respectixffey clip in substantially ⁇ the position into which it has been moved by the part 105.
  • the thread need not be gripped V or clamped in this position'rfor the reason that thereI is ,no tendency to displace it until lthe Y machine is again started.
  • Y v The location of the endportion of eachshuttle thread in a definite position after the .cutting operationV has vbeen' ⁇ completed is of ⁇ vital importance
  • a The invention thusovercomescompletely the i raised positions, as shown ltligplll.V She y then releases the presser foot treadle toflower y the presser foot into ,engagement with ⁇ the threads.
  • the cutters are positively actuated thistype of sewingmechanism.
  • theoperator inserts Y a label (which ⁇ preferably has already had its ends folded under) into the label holder'while this holder and the Apresser ootare in their garment which she has placed properly on the lwork supporting tablecfThe operator Inext depresses the starting treadle, whereupon the sewing instrumentalities first tie a knot at the beginning ofthe seam, .as above described, and then sew across the label and back, automatically, finishing by tying an'-I other knot, The machine stops automatically when the sewing of a label has been 'complete ed.
  • Yvvork holder forthe labelassoeiated with the j fpresser foot and serving to ⁇ *support the label Y independently-1of the Workfivhile it is stitched ⁇ f mo'vfing said holder transversely to saidjfeeding, movement, cuttersvassociated with Asaid vpresser foot'ffor lsevering the needle threads,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

Dec. 16, 1930. P. W. HATFn-:Lp
' LABEL SEWING MACHINE origirial Filed Fe. 4, 1924 6 Sheets-Sheet l Dec. 16, 1930. P. w'. HATF-IELD UABEL SEWING MACHI(NE Original Fild Feb. 4. 1924 6 sheets-sheet 2 Dec. 16,1930. P,W,HATF,E. D 1,785,412
LABEL` SEWING MACHINE Original Filed Feb. 4, 1924 6 Sheets-Sheet 5 Dec. I6, 1930. P. w. HATFIELD y 785,412
' LABEL SEWING MACHINE v original Filed Feb. 4, kism e sheets-sheet 4 Dec. 16, 1930. P. w. l-Wrl--uc-.LD 1,785,412
LABEL SEWING MACHINE l Original Filed Feb. 4, 1924 6 Sheets-Sheet 5,..
Dec. 16, 1930. P. w HATFIELD 1,785,412
LABEL SEWING MACHINE Original Filed Feb. 4, 1924 6 Sheets-Sheet 6 Original application fled'Fcbruary Patented Dec. 16, 1,930l
noir, or Wannrinnn, messeciiusniifrs OFF,
LeisnnsEwiNeiviAciiiivE This invention relates to sewing machines,
herein disclosed as embodied in a machine designed especially for sewinglabels on underwear, although it is contemplated that it.
may be used for other purposes, and theterm label, therefore, as used in this application is designed to include other work which the machine is adapted to operate on.
' It has beenl a common practice heretofore to sew labelson underweafrwith aso-called patch sewing machine.
y Many manufacturers lind such a maclfiinel objectionable, however, for the reason that.` it leaves ltoo wide a margin fbetween the line of stitching andthe edgeof :the label. A more common practice, therefore, is tosewthe labels -on with the laid of an ordinary sewingmachine, the work being guided by handand all four edges being sewedl down. This is a relative-` ly slow operation, it requires along time for an Voperator to become 'expert at it, and'jonly certain types of operators aresuited for this j work. Furthermore, becauseA the `worlris guided by hand, the results are not uniform,
the lines of stitches in Sonie Vcases not beingV parallel to the edges of. the label, while at` other times thestitching runs over the edge of the label insteadof being stopped within the margin, as it should be; Frequently,v mistakes made in sewing on'kthe labels areV ofsuch a nature that the labels must-,bel
ripped oil' and the work vdonel over.
The present invention deals with the problems presented by'these conditions, and it Vhas for its general object to improve lthe construction of sewing machines with a view to substantially eliminating the skill now required in sewing on labels, produng better land more "uniformv results, and to devising a mechanism for performing` this work more rapidly than prior machines. The invention is especially concerned with" mechanisinfor severing the threads when the sewing operation has been completed. f
In the rotary shuttle or `so-called verticalhook type of sewing machine it provedimpractical heretofore to use a cutter for the: shuttle thread.- At the same time this type of machine ismorerapidvthan theY oscillating lhook lockV stitch type, is
one of theobjects of' thisinvention to over@ comethe objections that havebeenrencounc tered heretofore in using ar shuttle thread'` Vertical hookloclr stitch sew'- cutter Vwith a ing machine.
`The various features of the invention bereadilyunderstood from theJ following deb-,.1V scription `when readin connection with the.
rERcY W. Hermann, on weiriirintn, iviiissiicnusnmrs'nssicnon To wiNsI-iiie, oizr a oo., A coPnarNERsi-iii? coiisis'iiiva oFcHARnns ii". wiisiiir ein) ELIZABETH 'sg 1 4, 1924, seriaijno. 690,359. Divided and this app1icarion--iiiedauiy a4, i925; serial No. 45,861. l f Y accompanying drawings, and the novel features willbe particularly pointed out vin the f in appended claims.
Injthe drawings, Y i Figure l `isa' front bodying this invention; 2 is la side view, partly in `vertical mechanism;forV oneof the thread cutters;
Fig. .3 is a plan lview ofthe machine shown tion,of a portionof the work feeding mechanisnfi;y
' Fig. 5 is a-fragmentary View of one ofthe parts shown in Fig. 4; y
. F'g. 6 is'aview, partly in end elevation the label holder `and adj acenty parts;
the work feeding mechanism;
Fig. 12 is ,ay front `diagrammatic. `view showing the relationship of the label holder' to the needles'and adjacent parte; c
Fig. r13 isa perspective view showing a label sewed on' a garment bythis machine;
Fig.` 14 isa side elevation of the'lahel Fig. 7 is' an end view showing a `nof'rtion of b elevation of the'more important parts of. a sewing machine ern- '2o cross section,"showing partof the operating and partlyin vertical crosssection, showing] w holder and the parts immediately cooperating therewith; and 1 v Fig. 15 is a side elevation showing the manner inV which the thread` is held after being severed.
` The machine shown includes thek usual `arm2, Fig. 1, rising from a work supporting table for .plate 3. The sewing instrumentalities includel two needles 'l1-4 spaced apart and two shuttles mounted below the plate 8 to cooperate with `the respective,needles.Y
Associated with each shuttle is a rotary hook of these-called vertical? type whichrotates in a horizontal plane, one lof these shuttle andghook arrangements being indicated at 51n fFig;l 6. In its' general features, and
` except tfo'r. the dierences `*hereinafter 14,' having two knurled or roughened platesV 7..-7 screwed to'.v the lower side thereof.
e ao
p'ointed'out, this'machine is constructed,.ar.
ranged/ anduk operates like the usuali .commercial machines of the .typecin di'cated.
. The ymachine includes a special presser foot which comprises 4a body 6, Figs. k6, 9 and The body' is pivoted at Seto a bracket 10, and this entire bracket, and the parts carried thereby, are suspended normally from a presser foot head 12. The connection between the' parts 10 and 12 includes astud 1l that eX- tends forward froma portion' of the bracket 10', and a plate 15 which'is screwedto Athe front side of the head 12 and has a short slot therein -to receive the stud 14', as best shown in Fig. 1. f The presser foot head 12 is sevcured on the lower end of the usual presser foot shaft or post z 16, Fig.` 16, which is supported vertically in the head of the machine and is normally pressed downwardly'by a.
spring 17 yA sleeve 18 ismounted. on `the presser footpost y-16J and arranged to have a limited sliding movement thereon,and this sleevecarries a lug 20 which is arranged to be engaged bya fingerl 21, Fig. 6, of apresser foot lifting lever 22, Fig. 1, which is fulcrurned on the .machine frame at 23 and is connected` bymeansof a rod or chain 24 with a presser foot vlifting treadle,- not shown.
f Consequently, bydepressing the tread-le the presser foot -is lifted oif the work, butwhen the treadle is released thetpresserA foot is lowered into engagement with the work, partly due to the weight of the parts, and partly due to the pressure of the/spring 17. The pressure of this spring is transmitted to the presser'foot through two rolls 25-25 car For the purpose of holding and positioning the label properly'forattachment to the garment, a label holderis mounted on the presser foot 6. The construction of this holder is best shown in Figs. 8, 9 and 10. It
comprises a vhoriz'ontal'plate 27 which lies Vbetween-the ,knurled lpresser foot Vsections '7;7 and is riveted toa U-shaped bracket 28,
Fig. -"'.Fheu'pright arms 30 and 31 ofvthis bracket 'are mountedinvr slots "formed in the hodyi-,ofthe presser foot so that the plate can slide vertically with reference to the ...presser foot,` .this sliding movement being limited, however, lby a scre'wf32, Fig. 9, which is secured in the presser foot 6 and projects through fa slot formed in the member31.flV VA spring 33 interposed between the parts 6 rand 28, tendsto force the plate 27 downwardly. Mounted immediately above y' Vthep'late-'27 is a bracket 34 vwhich is secured to `'the-.part 6 by screws. The label L is placed on'the-.plat'e 27 and sli-ppedunder the bracket 341, *whileV these two parts are held away from, eachother, or in their labelreceivingrelationship, by the' spring 33. The central portion of the bracket 311 is cut away,
as clearly lshown in Fig. 8, to facilitate the 7 introduction of the label inV this mannen The' part 30 forms a back stop `or gage for the label andprevents itfrom being ositioned too farbackin the labelholder. As
soon as ythe presser foot is lowered, in the manner abovefdescribed, and the. plate 27 comes into contactwith the upper surface of the work supporting plate or table', the further downward Vmovement ofthe presser foot. head necessary'to bring the presser foot firmly into engagementwith the garment to whichfthe label is to be attached, carriesethe bracket, 341 jdown upon Vthe label'and clamps it -irmlyson'thepl'ate 27 Y. This movement of the label holder relatively to the presser foot is permitted by the slidable connection between. these parts as above described and by Athe spring 33. As soon as the presser foot is lifted -agaimthe spring 33 moves the plate 27v downwardly with v-reference to the bracket 34, thus releasing the label.
In order to gage the endwise position of the label in the holder a 1U-shaped spring member 36 is secured to the presser foot 6 Vby a screw 37 and this member is providedwith two down-turned ends'38-38, 'Figs-8,9 and 12, whichlar'ellocated atV opposite sides of the bracket Sflwhere they serve to gage the positions Jof -the ends ofrthe label when it is insertedin'the label-holder. VThe lower edges,
of these gages 38.-38 are'toothed or roughened, as shownainiFig. 10, and Ythey bear.
, ing an arm 54 projecting therefrom. Thisl arm isconnected by a link 55, Figs. 4 and 7 holderand vthat the label-*holder'is 'not asI wide as the cut-outer notched portion, so that two `deep slots-40-,40 are provided in the presser foot at oppositesides of the label older. These slots receive the needles For the purpose of feeding the presserfoot and label holder past the needlesa lever 42,` Figs. l, 3 and 6, is pivoted at `43 tothe rear-v ward fend ofthe bracketlO and isfulcrumed. fat 44. The upper end of thislever iscon-v nected through a `ball. joint ,with a feedl lever46 whichis fulcrumed on the machine frame at 47. ,This fulcrum is adjustabletoY vary thefthrow or total feeding movement Y.of the presser foot as may be desired for labels of different Widths. .At itsrrearward end the feed lever 46 carries a roll148 which runs ina groove k5() formed in afeed cam,V
5l.v The cam is mounted on a stub shaft andlis rotated step bystep by a ratchet clutch mechanism of a form commonly used insew-V ing machines and which is best shown in Fig. 4. This mechanism j comprises c clutch arms 52-52 that grip the rim of the cam 5l and bear against a centralhub member 53 havwith `a bell crank lever 56 having a forked end which straddles an eccentric 57,*F ig. 7, se-
=` cured fast on the main Vcam shaft v58 of the machine. The mechanism Athus imparts an oscillating movement to `the arms 52-52,'
causingthem to grip the rim of the cam 51,`
as they are moved forward andto release K therim and slip on it afs` they move in thel opposite direction. The length of each move-V ment thusimparted to the cam, and c onsequently to the presser foot, may be varied by adjusting the link in the arm 54, and
this adjustment thus-varies the length of the stitch.` vThe machine makes a single stitch for each revolution ofthe cam shaft 58. A;
part 60, Fig. 4, grips the rim of the cam 51 upon each backward movement ofthe parts 52-52 and prevents the cam `from `rotating in a reverse direction. The cam l5l 1s doubley and makes half `a revolution in 'each cycle of the machine.
i Due to the shape off the cam'path AinV the cam 51, and to the manner inwhich the machine is automatically stopped,`"the machine is operative, when once started, to feed the Vwork forward-far enough to carry the j label entirely past the sewing v instrumen- Vtalities and then backward again, so thatthe machine makesa double lineof stitches'a'cross each end of thelabel, as indicated at'S in Fig. 13. The cam 51 also is provided with a dwellat the beginning and end of the feed- 'ing movement so that when the machine is` first started it will make two superposed stitches before any feeding movement "of the work begins, and at the completion of the sewing or stitching operation it will again pause while the stitching mechanism contin-v ues to operate so that two more superposed stitches will-be made at the end of each seam. Thesesu-perposed stitches form, .in` effect, a knot and eifectually prevent the thread from ravellins .Y Y
1 Inl-.order to start and stop f. the machine it is provided with` fast and loose pulleys 62 and 63, re spectively, Figs. l, Sand 7,`and` 'the drivingbelt 64 is engaged by a belt shipper whichis pivotallyconnected'to a party66, Figs* 3 and 7, carried by an arm 67 nected Vtheretoand running over a pulley 7 2V to a foot treadle,.not shown,A l/Vhenthis foottreadle is depressed it swings the arm 67 outwardly` away from` the face of the pulley 62.` and operates throughthe belt shipper 65 tomove the belt or band64 .on to the fast pulley 62. NThis starts the machine intooperation, yandthe ibelt shipper is held inthis position by a `'spring pressed latch 74,
Fig. 8,V which engages a notch inthe end of a rod thatl projects from vthe belt shipper `65. ".-VVhen themachin'e has completed its cycle of operations,ieither 4one ofi-"two lugs 7 (5f-7 6, Fig. 3,;mounted on the cam 5l, en-
gages'the latch 74 and vtrips it-"o'ut of engag'ef wir ment with the rod 75( Thereupomthe spring 69-swings'the arm 67 inwardly toward theface of the pulley 62, and shifts the belt 64 on to vthe loose pulley. This armV carries a spring pressed block 77 whichV is'engagedby a pin 78, ig. 7, that-projectsfrom the pulley 62` and such engagement slows down the move-v mentV of the pulleyl very substantially before thepin 78 strikes-the springpressed plunger 80 and positively Vstops the machine.V When the'startin'g treadle is vagain depressed the arm thus carrying Vtheplunger '80 out of contact at substantially the 'same time that the belt is shifted from the loose to the `fast pulley.-
At st ibstantially the same time that the latch7 4 istrippedby the lug 76, another lug ,67Qis' lswung outwardly, as aboveydescribed, Y
'with the Lstop pin 7 8, this action taking placeV Y SQCarriedby the cam lengages one'end of a bell VVcrank'lever .813,f This lever has a brake 84 .formed on its-opposite end arranged to engage thesurface of the fast pulleyl 62 to reduce the speed ofthe'machine beforethe pin 78y strikes thes'pring pressed member 77.
' After the stitching operation has been completed it is'desirable to severthe threads close to the work and animportant feature of this invention resides in cutters for severing both the needle and shuttle threads. Referring to Figs'. 6 and 8 it willbe seen that the needle thread cutters 86-86 are mounted Ain slots Cil formed between' the` vparts' '6" and'? *of-'the' presser foot and'that they are VVarranged to cured to the Yupper endsv thereof. V,Curved rods 89-89 are pivoted to the' 'respective arms 88-88 and are supported by Va sheet inetal bracket 90 which is secured to the rearwardv side of the bracket 10. f As thepresser"foot is moved backwardly` Vduring the Istitching operation, the ends of the-rods 894-89 come in contact, respectively, with curvedrbars 9'1-91 andk suoli contactmoves'the rods for-v ward relatively to the presser foot, thus swinging the cutters 8(5*86 inwardly and setting these cuttersY in readinessforper?` forming the lcutting operation. The cutters remain inrtheir inward positions while the presser foot is fed forward'again and the stitching operation is completed.- Y
When Athe presser foot is `lifted to release the worktlie endf21 of the'levei 22, pre-V viously referred to, first lifts Vthe sleeve v18,
Fig. 6, for a short distance before-tlie presser foot :post 16 is lifted. This post and the presser' foot head are nextl lifted foran apthread cutting mechanismY is operated while. this lost motion betweentthe sleeve l8'and preciable distance before the presser foot is` lifted off thework, due to the lost motion connection provided between these parts. The
presser foot is'being takenup. For this purpose a heavy wire or small rod 93, Fig. 6, is secured to the sleeve 18 by a screw 94 and itslower end is bent at right angles and projects through a hole in a-plate 9,5'which is pivoted on the presser footvheadvat 96. A
dog 97 is 4adjustably secured -toV the plate95 by means `offa screw98and as the 'presser foot head islifted the upper end of this dog engages a roll 99 which is secured on the side of a fixed bracket 100. 'llhis engagement, results, as the presserV foot head continuesv torise, in tipping the plate .95 inlafclockwise direction, Fig. 6, the rod orv wire 93 yieldingsufficiently to permit thisjinovement--v The rearward-tend of the plate 95 is slottedor forked, as shown at101, to receivepa lrod 102 that connects two bell crank levers 1035-103; which are pivotedwon opposite sides of the` bracket 10,-fas clearly shown in Figs. 6 and8.
,I The tipping of the plate Y95'operates through the rod 102 to swing thelevers103V- 103' in a clockwise direction, Fig. 6, about their pivots and the lower ends of these'leversY--engage studs 404 carried by the Vrodsy 89 and move theserods backwardly. This swings the cut-v ters 8686 outwardly across theslots-40y-40 and causes them to sever thefneedl'e threads. Fig'. 14 shows the parts after the cutting operation has been completed andthe presser` foot has been lifted substantially to theup.
, maar, e y
per limitofits."inovexiaent.YL Asi-above stated,"
the cutting opeiationtakes placebefore the presser foot has been lifted substantially so that the threads are -cut 'very close to the work.
Theisaine act ofi lifting the presser foot also is"utili'zedll to 'operateV the mechanism for cutting andV rpsitioning the shuttle thread. Referring'to igs. k12,6 and 11, the cutter is indicated at 104 andthe movable element of thej'thread positioning device at 105. Both offthese' partsV are :adjustably secured by` means o'ffajscrew 106,.Fi'g.,11, to a bar 107 whifcli'isi'nounted on an arm 108. 'This arm is pivoted at 109, Fig.y 6, on another arm 110 which is secured to a rock shaft 111, a spring 112connecting`the parts 110 and 108 in a manner readily understood fromr Fig. 6, to cause lthe spring to lift the arm 108 and hold the cutter 104 in engagement with the lower face of the removable section 114 of the table 3. Secured to the rock shaftl 111 `is an arm 115.l Fig. 2, Vcarrying a pin 116 which is arranged to be engaged by a lever 117 that is connected by a cord or chain 118 to the treadle rod 24, Fig. 1. Consequently, when the presser foot tieadle is depressed, to lift the presser foot, the connections ustl described will operate to move the cutter '104 and the part 105'- forward, the cutter sweeping across the needle holes in. the-plate 114 and severing the shuttle threads at said holes. The part 114 serves as a shearing plate and cooperates with the cutter 104 in severing the threads.
A The edge-of the thread positioning'v plate 105 precedes the knife or cutter 104 during the cutting movement, so that it vengages the 'threads betweenfthe shuttles andthe work and draws off a .certain length of each thread before thethread Vis 1 severed by the cutter. The' lengthof thread so engagedis pushed into a slot. formed between the lower face of the plate 114 and theupper surface of aclip 120, Figs.` 6 andu'll, which carries the needle guard 121, it being understood, of course, that :one of these combined clips vand guardsj is i provided fory each needle. When the critter 104 and the positioner 105 are withdrawn, the end portion of each shuttle thread is leftin-itsv respectixffey clip in substantially` the position into which it has been moved by the part 105. The thread need not be gripped V or clamped in this position'rfor the reason that thereI is ,no tendency to displace it until lthe Y machine is again started.Y v The location of the endportion of eachshuttle thread in a definite position after the .cutting operationV has vbeen'` completed is of` vital importance,
however, inavertical hook type of machine. y
since wit-houtk it, it is practically certain lthat when the machine is started again the shuttle thread will be caught 'by the hook and carried around with it so that the vstitch will not be completedf By definitely locating the end portion ofthe shuttle thread any action of this kind'is avoided,andit is'icertaintthat,.-a
' e perfect stitch will be madeimmediatelyupon the yresumption ofoperationof thel machine;
. A The invention thusovercomescompletely the i raised positions, as shown ltligplll.V She y then releases the presser foot treadle toflower y the presser foot into ,engagement with `the threads. The cuttersare positively actuated thistype of sewingmechanism.
diliic-ulties' that havebeenfexperenced here-Y totore in using a shuttle thread cutter with Inusing this'machine theoperator inserts Y a label (which `preferably has already had its ends folded under) into the label holder'while this holder and the Apresser ootare in their garment which she has placed properly on the lwork supporting tablecfThe operator Inext depresses the starting treadle, whereupon the sewing instrumentalities first tie a knot at the beginning ofthe seam, .as above described, and then sew across the label and back, automatically, finishing by tying an'-I other knot, The machine stops automatically when the sewing of a label has been 'complete ed. The operator nextdepressesv the presser `foot treadle, thus lifting the presser foot, `which action operates thecutters and causes them to sever both the needle and the shuttle and consequently they are extremely .reliable in operation. The operator next removes the work ffrom the machine and repeats the operations above' described. -V j It will now be appreciated that this inven tion substantially eliminates the requirement for skill in the label sewing operation. All that an operator is required to do is to place a label properly in the label holder, to locate the garment under the presser foot,- and to op-f erate two treadles.V The feeding. of the work,
. length of the seams, location of the seams on the label, and the cutting ofv` the threads are -all performed automatically, `and y are'entirely out of the control of the operator. i l
I/Vhile I have herein shown and described the best embodiment of my inventionthat I have so far devised, it willbe evident that the invention may be embodied in other forms e thereof.
Aing with saidl needles, means .for holding the `label and the work inoperative relationship without departing `from the Vspirit yor scope invention, what to s aid instrumentalities, mechanism cooperatmg with said means to feed thework and the 1 label past; said instrumentalities, cutters threads, and
a common actuating means for said cutters.
,2. In a labelsewinjg machine,thecomhi eato'nf Sewing instrumente-liti@ adapted@ f stitch,simultaneously across opposite .ends of Y 1a label, said instrumentalities including two needles spaced apart and shuttles cooperating with said needles, means forrholding thelabel "and .the work-.in operative relationship, to said l Y Y af p1 esser foot, mechanismlcooperating v saidmeans to feedfthe Vlabel `and work past `said finstrumentalities, cutters forV i sever-ing niinst-runf-rentalities, l,said .means including yboth the needleand shuttlethreads closet-o `the work, mechanism for liftingl said presser Ytoot,andaconnections between said presser Y 'stoot lifting mechanism .atingthe-cutters, f y e l.
l3. -In-a machine of the character,described,`v`
and cuttersforoperthe combination of sewin `inst'rumentalities includingafneedle anda s uttle cooperating.
Voperative to sever both the needle andzshuttle with ,-said needle, v"a cutterV for severing the e shuttle thread, aldevice arranged to engage 1the thread in ,advance ofgsaid Vcutter and be-V the combination lof sewing instrumentalities including, alneedle and a Lshuttlefcoopenating with said media-means including a presser toot for holdingthe y:it/Vork 1in .operative relaf tionship 3 to said instrumentalities, operating y mechanismfor saidfpresser foot, a cutter :for
severing' the shuttle thread,;a devicel arranged .l to'fengagethe shuttle .thread nadva-nce of f *said .cutter and `between the v'point at which it .is severedyand the.,shuttle,fa clip intov which y thelthreadjis'icarried by said device, Isaid clip being operative" to retain-the 'threadindeppefndently {of'said device, and connectionsfor enabling said presser foot operat-isngfmecha lnism to operate both said cutterland device. K 5. n In a label sewingmachine, the `:ombina-`V y tion of sewing' instrumentalities adapted to stitch simultaneously across oppositeends of alabeh' said instrumentalities including two e needles spaced apart, `means for holding'the label and workin operativeflrelationship to Vsaid instrumentalities, said means including' a'presserootutte-rs carriediby said presser toot :for `severing both threads liandled'by .tweensaid `cutter and the "shuttle, al clip into whichsaid deviceis .arranged tocarry; the g l-threadsaidclipV beingjoperativeto retain v. the threa d independently of` said "device, and
asingleinechanism for operating lsaid cutter and deviceay Y, f j. Y i y t.` Inamachine ofthecharacter described,
sai-dneedles,mechanism `:tor lifting said 1p'ress- .l Y' e erf'fo'ot, and'means arranged to bebrought into operation `by `said mechanism for auto-` ;m'atically operating said cutters Vto sever the threads before any substantial lifting move- Ament ofthe presser foot has.:occurred'.`
116; alabel sewing machine, the combi. 'i
natieeeteewing instrumenten-tiesadaiitedtc f-natioiio sewing"linstrumentalities adapted y i lfeo ' l'st'i t i:'h 'si-multaneously across'` opposite ends I`of 'means for giving said'rcutteijs their operative aglabelg'said instrumentalities including tvvo needles'Aj spaced; apart, a holder for' clamping the label in position for the sewing operationfsai'd Vholder havingwslots `for the passage fofsaid needles anda part adj aeent to slots-forbearingori-the label betweenthe i Y 'needlesfrand,cuttersassociated with 'said v Yholderland mounted"tomoveiaeross said slots g `to 'severtlieneedlethreads 3" In' 'a label selvving'l machine, the' Combi- 'l l"tostitch;simultaneeusly across vopposite ends jo'ffafl'abel, a presserffoot for bearing onthe Work, La holder for thelabel associated with '5 movement; i l
In testimony the presserffootI andl serving to lsupportl the flabelindependentlylof the Work While itis istitchedtofthe'Work, cutters carriedrby said pressei; ootor severingtlle needle threads.
' operating 'said eutters'simuland means for f v,j s; abel sewing [maghi-lie, v umimmbi- 'fnation of sewing instrumentalifties4 adapted to aflabel; i a1 Apresser foot for bearing* on the "stitchsimultaneousljacross opposite ends of v Y' Y A.
Yvvork holder forthe labelassoeiated with the j fpresser foot and serving to `*support the label Y independently-1of the Workfivhile it is stitched `f mo'vfing said holder transversely to saidjfeeding, movement, cuttersvassociated with Asaid vpresser foot'ffor lsevering the needle threads,
, y 'and means 'for utilizingsaidtransverse move- 'A 35 fto the Work,y meansiforfeeding said holder past's'aid sewinginstrumentalities;means for ment lofsai'd `holder to operate said cutters.
19.3111 aflabel es(evvin'g' machinav the combina# i yftion of ,sewing.instrumentalitiesadaptedto VVAstitch simultaneously aor'oss opposite ends of l j a label', said instrumentalities including` two f needlesspaced@apart,.a holder-for clamping Y 'thelabelin positionfforthe sewing operation, x Xabi- 1 Ya presser foot assoeiated'withsaidholder and having parts'looatedlatopposite'sides of the y n -lielcler tolenga'gebthe Worlncutterspivoted infsaid'presser foot for severing the needle j Y. 4 thre'a-ds, means for feedingfsaid Vholderpast -i jneedlesfandxmeans for utilizing said f v 'feedingmovement to position said cutters for theV thread 'cutting operation,
5G V1..'0. In 2a labelsewing'maehine, the combii nation -oY sewing instrumentalities adapted to'stitehisimultaneously across opposite ends of aglabel, a presser foot fbrqhearingon the lvyork, a'zholder' 'for thezlabelassoeiated With thepresservfootiand servingto support the label independently ofi-,the Work `4While it is Y stitchedftothegworkfmeans for feeding'said ",holder past-jsaid sewing;linstrumentalities,
means for moving saidholder transversely to il said' feeding'fmovementgfCutters assoeiatedwith said presser' Jfoot orsevering the needle '.1
threadsymeans for" utilizing said feeding "movement to position said outtersLfor'the Y v thread *Cutting 'operationfandadditional `naniejto this specification.
vIvvhereoif;v .I' have signed my
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889793A (en) * 1952-07-25 1959-06-09 Union Special Machine Co Sewing machine
US3981254A (en) * 1975-12-29 1976-09-21 Stanley Franklin Automatic necktie neckband tacker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889793A (en) * 1952-07-25 1959-06-09 Union Special Machine Co Sewing machine
US3981254A (en) * 1975-12-29 1976-09-21 Stanley Franklin Automatic necktie neckband tacker

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