US1134564A - Ornamental-stitch sewing-machine. - Google Patents

Description

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IORNANIENTAI. ASTITCH SEWING MACHINE.

AP/PLICATIONV FILED MAYI'I, 1907.I

Patented Apr. 6,1915.

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wir aan@ mmwboz v.1. VAN HORN. ORNAMENTAL STITCH SEWING MACHINE.l

APPLICATION man NAY-I|V,1901. y l

Y Patented Apr. 6, 191.

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nuentoz M f l www v. LVAN HURN. ORNAMENTAL STITCH SEWING MACHINE. APPLICATION FILED MAY Il, 1907.

1,134,564; i f- [Patented Apr.'6,191 5.

' v ISHEETs-SHEBTL l glwuonlfoz which is connected 'to the presser foot and is vraised or lowered through said presser foot as the fabric varies in thickness..

' .The presser bar 25 is mounted in the overhanging arm, and is held in enga gement with the fabric by a spring 26. Said presser bar may be raised by the hand lever 27, or by the lever 28 pivoted to the head of the machine, and which is connected to a suitable knee lever or foot treadle. This presser bar and its operating mechanism is of the usualconstruction. The presser bar carries at its lowei end a presser foot 29 comprising a main section and a movable section, which is pivoted thereto by a suitable pivot pin 30.

This presser foot as clearly shown in Figs. l5to 7 is provided with needle slots 31 and 32, which needle slotsare connected by a cross slot, thus forming atongue 33, over which threads may be laid in the stitching operation, and as the feed of the fabric takes place, said thread will slipvoff from the end of said tongue. At its' forward end said presser foot is slotted, forming lprojecting ngers 34 and 35. Mounted on the finger 35 is a fabric guide 36. Said guide is provided with, a shank 37, which extends up over the finger 34, and is slotted, whereby said guide may be adj ustably attached to said finger by a suitable screw passing through the slot Vinto the linger. The finger34 is provided with a similar fabric guide 3 8, which is alsoy adjustably attached thereto. The object of these guides 36 and 38 is to guide the edges of two spaced fabrics so that the same may,

be presented -to the needles.

Thev thread-CarryingJiDger 39, having a thread eye 40 in its outer end, is pivoted to a bracket 41 extending outwardly and forwardly from the'head of the machine, as clearly shown in Fig. 4 of theA drawings. The outer face of the bracket 41 is formed on the arc of a circle, the center of which is the axis of the needle bar. Said bracket 41 carries anv yextension 42, similarly curved, and adjustablyheld onv said bracket 41 by means of a screw 43. The thread-carrying arm 39 is mounted on a pivot 43, carried at the outer end of the extension 42.

The thread arm 39 is so proportioned that the path ofl movement of the thread eye 40 I. intersects the axis of the needle bar, and cons'equently said thread eyejin its. oscillations will pass'midway betweenthe spaced needles 9, and 10. Owing to theshape of thel bracket 41, the extension 42 may be adjusted 'so as to change the position of the fulcrum point 43of the'thread-carrying arm 39, and

the thread eye in all its adjusted positions will'still intersect the axis ofthe needle bar, passing midway 'between theneedles. The

' threadarm 39 is connected v4to a link 44 by means of a ,suitable ball joint 45. The opposite endof the link 44 is connected by a simiby a sleeve 4'?-7 loosely `mounted uponthe shaft 48. Saidsleeve 4'? is oscillated by means of a link 48 connected to a suitable vprovided with thread- engaging hooks 51 and 52. Said loop-forming device is pivoted as 'at 53, to the rear end of the eX- tension member 42. Said loop-forming device 50 is provided with an arm 54, which is connected by a link 55 to a depending arm 56, rigidly secured to the shaft 48 at the rear of the machine. Said shaft 43 has secured thereto a collar 57, to which is pivoted a suitable eccentric strap 58 cooperating with an eccentric 59, carried by the gear wheel 60, mounted upon a bearing carried by the overhanging arm. Said gear wheel 60 receives kits rotation from a gear wheel 61 mounted adjustable bracket on the head of the ma chine. From the eyelet 64 said thread is led through a suitable eyelet 65,' vand then through a thread eye 66 on the thread-carry ing member 39. A ythread eye 67 mounted on the needle lever 3 vibrates between the thread eye 63 and 64, and operates to pull the thread from the supply. f

The operation lof thethread-carrying iinger and loopforming device is as follows: Starting with the needles in theraised posi tion and the thread linger is 'at this time in its rear position, while the thread hook 52 is in-engagement with the thread carried by the thread finger 39, and has formed a loof in said thread, holding said loop spread fo..

the entrance of the needle 9 in its descent, and as said needles move downward, the thread finger 39 will move forward tothe position shown in Fig. 6. The thread hook 52 holds the loop formed in the thread of the thread-carrying finger until the needle has entered the same, and then said thread hook moves to the left, as shown in Fig. 6 and the thread hook 51 is brought into engagement with the thread carried by the thread finger.

inasmuch as the loop-forming'device 50 oscillates only once to every two vibrations of the thread linger and thepneedles, said needles will move to their lowest position to form the stitch, and rise again to their eX.- treme upward position by the .time the .thread` hook 51 has reached .the position lar ball joint. to afdepending aim, Tcarried lfthe formation of the next stitch, the needle -may be operated upon by the machine heremenace l0 will enter the loop formed in the thread carried bythe thread. linger, and which is at this time held spread for the entrance of the needle by said hook '51.

It will be noted from Fig. `8 that the thread hooks 5l`and52 are provided with a thread groove leading from the base of the hook longitudinally of the shank of the thread-carrying "'device. The purpose :of this thread groove is toreceive the thread ofthe threadcarrying member, and as it is draw-n into said groove the loop isslightly spread by said movement ofthe thread.

is clearly shown in Fig. 5, the thread of the thread-carrying finger is formed into loops, which are laid alternately for the entrance of the needles and the finished stitch has the appearance of a figure 8', the loops of which yare secured by the parallel lines of stitching. j

if a single piece of fabric be led to the machine, the ornamental thread will be laid back and forth from one needle to the other, and secured to said fabric by the parallel lines of stitching. lf, however, two spaced 'fabrics be guided' by the edge guides to the machine, the edges of said fabrics will-receive the lines of4 stitching, and the ornamental thread will entend from the edge of one yfabric to the edge ofthe other fabric, thus securing the two fabrics together.V lf a'single piece of fabric be inserted in one of the edge guides, saidffabric will have a line of stitching passed therethrough, adjacent its edge, and the ornamental thread will extend outward from the edge ofthe fabric, having its cuter loops secured by a line of stitchingformed by the other needle, thus forming a'finished edging for a fabric.

lifter the needles are properly adjusted,

the tlireael-carrying finger and 'the loopforming device may be also adjusted. by the movements of the extension 42 on its-supporting bracket, so that said finger and llooping device may be properly positioned for coperat'ion and for properly presenting the loops of thread for the needles.

lt will finger is formed on the arc of a circle, the center of which is the pivotal support of said finger., By thus forming-theiinger `all across the axis ofpoints thereof will swing theneedle bar and pass between'the needles without striking the same.

It will be obvious that a fabric or fabrics in described in various ways, forming ornamental stitches of various characters.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is-:

l. A sewing machine,` including in combination a plurality of needles, a presser f foot, having connected needle slots, forming atongue extending between the needles, a

be noted that the thread-carrying devices coperating with'saidthread carrying member for '-f'orming loops 'for the en'- trance of said needles, and .spaced fabric guides for guiding strips of fabric with their edges separated, whereby the edges of fabric are engaged by the' respective needles, and'said edges joined by the connected loops.

21A sewing machine includinginycombination, a plurality of needles, a presser foot thread carrying member, and loop forming havingv connected needle slots forming aj- 5 tongue extending between said needles, fab'- ric guides 'carried by said presser foot, 'a

[thread-carrying member and loop-forming devices coperating with .said'thread-carrying member for forming loops forI the entrance of said needles; substantiallyas describedl l 3.' A sewing machine including in combination,a plurality of needles, a thread-carrying member, a bracket for supporting said vthreadcarrying member, means for adjusting said bracket and looping devices carried 'by said bracket andcoperating with said thread-carrying member lfor forming loops for the entrance of said needle; substantially as described..

4. A sewing machine including in com-' binati'on, a plurality of needles, a threadcarrying member, a bracket for supporting said thread-carrying member, said bracket being curved in an arc the-center of which is centrally between said needles, means for adjusting said bracket and looping devices cooperating with said thread linger for forming loops for the .entrance of said needles; substantially as described.

5.-A sewing machine including in combination, a plupality of needles, a thread-carrying member, lan adjustable bracket on which a said thread-carrying member is pivioo oted,7 a loop-forming device pivoted upon said bracket, and means for positively operating said thread-carrying member and said loop-forming device; substantially as described.

'6., A sewingmachine including in combination, a plurality of needles, a presser foot, fabric guides carried by saidv presser foot, a thread-carrying member and looping hooks coperating with the thread-carrying member to form loops for the 'entrance of said needles; substantially as described.

7. A. sewing machine nincluding in combination, a plurality of needles, a presser foot, adjustable fabricl guides carried by said presser foot, a vthread-carrying finger and looping devices coperating with said thread-carrying finger to form loops for vthe entrance of lsaid needles ;l substantially as described.` v

8. In a-sewing machine having a plurality of needles, a thread carrying member, a.

double jawed hook. coperating with said 'thread carrying member, and means to o scillate'it, te carry a thread in' i in" said needles, said double jawedhoo'* b provided lwith means to spread the loop ci: thread carried by it; substantially as descrihed.

9. ln a sewing machine, a needle bar, a needle, a second thread-carrying implement, and a ccperating device for carrying a loep of thread under the path of the needle, the axes of the threadcarrying implement and the axisof the coperating device being arranged in are of a circle struck from the axis of the needlevbar and means whereby the axes of said. devices may be adjusted relative to the needle; substantially as described.

l0. In a sewing machine, a plurality of needles, a thread-carrying implement renin rocating in apath between said needles, double `javved implement coperating Atherewith tocarry loops of thread alternately in front of said needles, a device for t iring up the thread carried by the three( casts olf the thread, and to give slacl'as the doubleljawed implement enters the looop;

.substantially as described.

ll, A sewing machine including in combi nation a plurality of needles, a'thread carrying member, an adjustable bracket on which said thread carry-ing memberis piviplement maratea oted, a loop for. ng device pivoted upon said braclfet, means for operating said thread carrying member, means for operat- .ing said loop forming device, and .means whereby said bracket may be adjusted, said bracket being curved so as to lie substantially in the arc of a circle, the center of which is the axis of the needle bar. i

l2. A sewing,- machine including in combination a Work support, an cverhanging arm, a plurality of needles, a thread carrying member, thread. looping devices coperating` with said thread carrying member for formloops for the entrance of the needles, a main shaft, means for reciprocating the needles from said main shaft, an eccentric, a`..tW0 to one gearing for rotating said eccentric from said main shaft, a rock shaft mounted in said overhanging arm, means for oscillating said rock; shaft from said eccentric, and means connected to said rock shaftfor oscillating said looping devices whereby loops are formed in the thread earried -by said thread carrying member and presented alternately to said needles.

ln testimony whereof I allix my signature, in presence of tivo Witnesses.

VANDIVER J. VAN HORN. Witnesses Gao. F. DANFORTH, MGNEH..

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