US1267566A - Sewing-machine. - Google Patents

Description

' R. LOEB. SEWING MACHINE.

EWED JULY n, 1916.

APPUCATIDN men DEC.31.1913. an: 1 $67,566., I Patented May 28,1918.

I 4 SHEETS-SHEET 1.

lklltllltili\immllllllliiW WINE R. LOEB. SEWING MAGHWE APPucMum man 05c. 31. mm. RENEWED JUL Eatente. "M35128, 1918 4 SHEETSSHEET 2.

R. LOEB. SEWING MACHINE.

APPLICATION FILED DEC.3I,1913- RENEWED JULY 13, I915- 1,?J67,566. Patented May 28,191&

4 SHEETS-SHEET 3- LOEB.

SEWING MAGHKNE, APPucmon HLED 05c. 31. ms. RENEW Jenkintown, jMontgomery n noLF LOEB,-OFJENKI1\FTOWN, PENNSYLVANIA.

SEWING-MACHINE.

' Application filed :Decembergitl, 1913, SeriaLNo..809,789.

To all whom it may concern.

Be it known that I, RunoLnlLoEB, acitizen of the UnitedStates, and a residentof 7 county, Pennsylvania, have inventedlcertain Improvements in ,Sewing-lv'Iachines, of which the following is a specification.

My invention relates ,to sewing machines of the type employed ,to lay embroidery stitches, being more particularly related "to machines of the type for efiectingthe formationof eyelet embroidery. In the making of eyelets, it may .be desired to form round eyelets; .substantiflly FovaPleyelets, or eyelets pointed at one'end and joining a sem1-- circular portion 7 at the opposite end, and the object o-fmy present invention is to provide improved mechanism for accomplishing this result.

In -a companion application filed December 31, 1913, Serial No. 809,798, I have shown mechanism capable of producing the several forms of eyelets, and the mechanism forming the subject of my present invention is designed for the same purpose; though somewhat different in construction and mode of operation.

In each instance, a holding device is provided for the goods and while in the instance of the companion application longitudinal movement is imparted to the fabric holder in the formation of the substantially straight sides of the oval eyelets; in the present instance the finishing of the straight sides of such eyelets is accomplished by swinging the fabric holding member in the are of a circle; a pivotal mounting for the arm carrying the fabric holding member being set at one side of the machine at apoint substantially at right angles thereto and in the plane of vibrative movement of the needle.

As in the companion. application referred to, the machine for applying stitches to the edges of the preformed apertures is substantially like that disclosed in my pending application filed January 14L. 1913, Serial No 741,948, and the means whereby I am enabled to stitch the edges ofthe preformed apertures to effect the eyelet embroidery is in the nature of an attachment to said machine. It will be understood,v however, that such, attaelnnent may, with slight modi Specification of Ltters Pate-nt.

'PatentedMayIZS, 191s. :Renewe'd m '11, 1916. Serial-No. 108,713.

chines of a type substantially likethe one illustrated in the accompanying drawings.

v These-and other features, of my. present invention ;are -more fully described hereinga t'ter, reference being had to the accompany- ;ing drawings, in which:

Figure 1, is aside elevation of-a machine for mak-ing either round or elongated eye- -lets, showing the mechanism forming the subject of'my present invention for accomplishing this purpose;

Fig. 2, is a plan view of the same;

Fig.3, is an end elevation;

Fig. 3 is a View illustrating a detail vof my invention;

Fig. 4, is a. (detached perspective view of the operating mechanism;

' lliig ti, .is {an enlarged View, partly in section, of the fabric holding and moving memher, and I Figs. 6, 7 and 8, are views illustrating successive stages in the formation of the oval eyelets.

Asbefore noted,themachine to. which'the attachments formingthe subject of in vention have beenapplied is of a character substantially similar to that of iny'eom'- panion application (or that forming the subject of my pending application, Serial No. 741,948,) and'the needle operating mechanism is controlled by a series of cams and adjusting elements as disclosed therein; all of whichis' substantially as follows:

Intlre drawings, 1 represents the frame of the machine and 2 the head containing the means for eifecting vertical reciprocationof the needle bar 3 which, in this type of machine, is piyotallymounted so as to be ca pable of vibrating under the action of: suitable mechanism; In this connection, it may be noted that the mechanism for imparting vertical reciprocation to the needle bar is old and well known in'zthe art, and no extended reference thereto is thought to be necessary herein. The needle ba r carries a needle of any ordinary: or usual type,- indicated ate. which may be secured to said bar by aset screw 5.

In the lower part of the head of the machine is an arm 6, pivoted at 7, and having a sleeve 8 eneirclingfthe said needle bar, and through which sa dyneedle bar may slide during its vertical reciprocation. Move inent imparted to the arm 6 effects vibration of the needle bar, and for this purpose the following mechanism may be employed, which mechanism includes means for adjusting or regulating the extent of such movement.

Suitably carried by the frame of the machine is a counter-shaft 10, having a gear wheel 11, which receives motion from a gear 12, on the main driving shaft 13 of the machine. On the opposite end of said countershaft is a cam 14, which engages a roller 15 carried by an arm 16 connected to a rock shaft 17 suitably journaled in or on the frame of the machine, and having at one end a substantially yokeshaped lever 18, one end of which engages with a pin 19 adapted to slide in the head of the machine and impinge upon the arm 8. The yoke shaped lever is provided with adjustable screws 20 and 21 forming contact points; said screws having lock nuts 22 whereby they may be retained in any predetermined adjusted position.

Return movement of the arm 8 when the roller carrying arm 16 is released from the action of the high side of the cam is imparted by means of a. flat spring 23, suitably connected to the head of the machine, and having an end 24 bearing against the said arm 8. Upon rotation of the countersha-ft 10, movement is imparted to the cam 14 and transmitted to the arm 8 for the purpose of vibrating the needle-bar and its attached parts by the means just described; reverse movement of said needle-bar being accomplished by the spring referred to.

The extent of the movement of the needlebar by the cam 14 and the roller arm 16 is determined by the size of the said cam, while the position of the needle-bar, needle and presser foot with respect to the slot in the stitch plate, is determined by the adjusting screws 20 and 21; one being set in and the other out, as the case may be, and the upper one, (indicated at 20, for instance) bearing upon the frame of the machine.

The arm or lever 16 is in two parts, hingedly connected together by a pin 16 and held in operativecondition by a pin slidably mounted in said arm or lever, which pin 25* is in operative engagement with the end 25 of a bell crank lever 25 which is pivoted to said arm or lever 16 at 26. hen this pin 25 is withdrawn, in the manner hereinaft-er described, the cam 14 may move the end of the lever 16 on the pivot pin 16 with out affecting the rock shaft 17.

l have provided means in the shape of a bell crank lever 25 pivoted at 26 to a projection carried by the lever arm 16, which bell crank lever is operatively connected to a rod, in a manner hereinafter described, which rod is actuated by a knee-lift (not shown) menace employed with this type of machine, under control of the operator. Operation of said knee-lift. in. a manner common to machines of this type stops the vibration of the needle; permitting it to reciprocate vertically and form tacking stitches in order to stop 0d the thread or edging of apertures in the fabric. These apertures are prefe ably preformed, and the means for holding and effecting stitching or edging of the fabric at the marginal outlines or edges of these apertures may be described as follows:

The bedplate 30 of the machine is recessed or apertured at 31, and adapted to employed in the binding a said recess or aperture is a plate 32. This such means permitting complete or partia rotation of the fabric from a single axis in the plane of the vibration of the needle, more particularly described hereinafter. The plate 32 rocks upon a stud 33 supported by a bracket 34 suitably attached to the bed plate 30 of the machine, and extending outwardly from the same at right angles thereto. The plate 32 is pivotally mounted upon the stud 33 for slightly rocking or lateral vibration and carries a bracket 35, to which a lever 36 is pivoted at 37 one end of said lever being operatively connected to a post 38 carrying the fabric holding mechanism indicated at 39.. The post is provided with a slot 40, to which the end of the lever 36 is adapted whereby rocking movement imparted to this lever will cause the fabric holding mechanism to move vertically.

Movement is imparted to the said lever 36 by the following mechanism: Supported in suitable bearings 41 attached to the bedplate 30 of the machine is a shaft 42, carrying an arm 43 lying in contact with an arm 44 carried by a shaft 45 supported in suitable bearings 46; one of which is carried by one of the bearings 41. Attached to the forward end of the shaft 45 is an arm 47, for engagement with a pin 48 carried by a lever 49. The lever 49 is pivotally. mounted at 50 in a post 51 depending from the plate 34. The opposite end of the lever 49 is operatively connected to a rod 52 extending up- 'ard through the stud 33 and pivotally attached to the lever 36, at A spring surrounds the rod 52; tending to raise the plate carries means for holding the fabric lever 36. and maintain, the fabricholding element in. its lowered position for operative engagement with the fabric. I

The. shaft 42 carries a. rod 56 having a knee-piece (not shown). l Vhen the operator desires to raise the fabric-holding element, she pushes against the knee-piece which moves the rod 56 and causes the shaft 42 to rock or partially rotate. The arm 43-, pressmg upon the arm 44, rocking the shaft 45, bringsthe arm 47 in contact. with the pin 48 of the lever 49, raising one end of the latter the length ofthe stitches.

element 7 5 ;v the ring by forming a and drawing downupon the connecting rod 52, causes-the lever'36 to .raise the .ifabric holding element.

Thearm :13 has a 59 pivoted at.:60Ito a bracket '61 carried by the bed-plate 30 oftl1e machine; the lever 59 having an extended forked end x62embracing a vertically sliding rod :63 sup ported in suitable bearings attached tothe frame 1 of the machine, .such rod having an engaging portion in the shape of adj ustable and locking nuts 64 and 65, and being supported by a spring 66; The.do wnward pressure of'the pin 57 against the lever 59 causes it "to pull down onthe vertically sliding rod 63 against the tension ofthe spring 66. This actionefiects movement of the bell-crank ilever 25 ;andcauses it to withdraw the pin 25kand render inactive the arm or lever 16.operated.:.by :the cam '14, thereby stopping movement ofithe rock shaft -17 and itslever l8 controlling For this. purpose therod63 is provided with aprojectionifil which engages .one end of said ibellrcrank lever 25 when said rod is lowered.

The vibration of the needle may be stopped byhoperating the .lknee-lift tohthe full extent and then the need'leimay reciprocate vertically to form tacking stitches in order .to stop off :the threadlemployed in the binding or edgingof the aperturesof the fabric.

Supported in suitable bearings'r'L-oneof which is attached to; one of ctheibearings 41, is a' rockshaftb68. carryingan, arm 69', having achain TZO connected with'suitablel op erating means, such as a foot .treadle (not shown), under the control of the operator. Downward pull upon this ,chainlwill move the rock shafti68 and move-a forked arm 71 to withdraw fromthe plate32UanindeX- ingpin 72, thereby allowing the operator to swingthe-plate 32, onthestud 33ito carry the goods with respect to the needle and permit the laying of stitches in a substantially straight line to-obtain the desired result in makingthe eyelet.

The fabric-holding means is more clearly shown in Figs. 4 and 5', wherein .it is seen w: p

The stitch operat ng mechanism of the anato consist of a circular eleme11t,75, which receives aseries of rings77 and,78, pr.operly secured together by clips ,7 9 ,carriedbythe 78 being, channeled at 80 on its underside for the reception of a ring of rubber orsimilar material, indicated at 81, and beinggrooved on its upper side at 82 forthe reception ofballs 83 interposed between said ring 78 and a similarlv formed grooved in the ring :17 7, thereball-bearing and permitting ready rotary movement Qfiil heqrubber shod lower ring with respect to the rest of the stru u epin 57 arranged tocontact with thecurved surface '58 of a lever cationbefore referred to,-so that springs 77 .inentq75 to. ringer, foot 81 for holding the fabric against the rotatable plate 8.4. Two or more be noted that the embroidery has a apertures 95 therein, some of which are 1 po nte vrra'tifii11sa th QPPQ i BI QL w h p t re tambol fram (bowlm ployed in embroldering machines, and this th fabri lbenea he m .atomthen inanipulates said tambour frame son to h inslthe Pe of ,t 0 q tlie n edl th p br cket whic supp r t bythepinfl As; S9 1 tpo t is ;tern1in1ed,;the pin isreleased, (inlthen anner [Close "bed;),.,-.and the operator short 1 stitches placechand then while the saidneedle is jvibrating to and from the operator, the

caeth.ateeatent hastened :1?

. The .plate 32 is provided with a circular 'pIatew-S L disposed concentrically withjrespect to c the rubber-shod :foot plate .I or ring "78,6fil1l16 :fabricaholding means and, being grooved for the by .an ,anti :friction vsame and the recess.86 in th plate 321ereception of balls 85 where- ;bearing, between 'the screws 88. This clamping ,plate' and the ,plate 32 ,are, provided .withregistering openfings :89 for movement with respect to a fixed needle guide. 90 projecting through the same andcooperating withthe needle.

The member 7 7 of the fabric -holding means-maybe ;in the form of an undulatory annular ring, as in ,my companion applim y be inte posed, b t n i d the el insure pressure upon the ,rubber spring may b emp y a may d sired, to insure proper tension upon the maclielllfll being embroidered.

' 51 91 examining Figs. 6, v7 and 8, it will fabric as prepared for number .Of preformed one endand join semi-circular are ,tojhave ,their edges stitched or seamed. The ;fabr1c s held stretched 111 an ordinary K commonly emtambour drains tslaicl ev th d-Pl 0f the mach ne; the fabric-holding-means being l i t tl J perm h p ope posi ion g of v and the oper the fabric, (see plane of vibra- 32 carrying the foot being held Fig. I 6) directly opposite the.

grasping the by hand inovesthe same tothe ,right,

from. and out fcontrol of said pin 72.

chine isthen set in zinotion; the preliminary 1n :l1cated,at a being first bracket ,is slowly ,moved to i the left, {effecting the formation of the substantially paral- }lelingstitcl 1es onllle upper edgeofthe aperture,;as 1ndic; tedinFig. 6. As soon as the point ,is reached, the pin 72 automatically enters the a-perture or recess in theplate 32, preventing further mgye nent to theleft of sai pl t an .i nd ea i g th t the sti ch c eep rate rt e locking said plate, means rotatively turns the fabric; a movement of wnich may readily be eiiected by reason of the holding means above described; the rubber pad on the under side thereof holding the fabric against the turntable plate, and the two being movable with a minimum of friction owing to the ball bearings employed, which has the eifect of stitching the semicircular end, in the manner indicated in Fig. 7, which brings the stitched portion to the condition and position shown in Fig. 8, and then by releasing the pin 72 and effecting further movement'of the bracket to the left, the completion of the stitching around the eyelet may be elfected. The other apertures are stitched in a similar manner.

I claim:

1. In an eyelet forming machine, the combination of stitch forming means, a manually operable swinging member having a turntable, and rotatable fabric-holding means carried by said swinging member for cooperation with said turntable, said fabricholding means being manually turnable when the fabric is clamped between the same and the turntable.

2. In an eyelet forming machine, the combination of stitch forming means adapted to laterally vibrate in a single plane, a swinging plate laterally disposed with respect to the'machine and in line with said stitch forming means, a turntable carried by said plate, rotatable fabric-holding means carried by said plate and manually operable with respect to said turntable, and means for vertically moving said fabric-holding means.

8. In an eyelet forming machine, the com bination of stitch forming means adapted to laterally vibrate in a single plane, a swinging plate having a turntable, fabricholding means carried by said plate and cooperating with said turntable, said plate being manually movable with the fabricholding means, means for locking said swinging plate in line with the vibrating stitch forming means, and means for releasing the locking device, said fabric-holding means being manually rotatable at the end of the swinging movement of said plate.

4:. In mechanism for forming eyelet embroidery, the combination of stitch forming means adapted to laterally vibrate in a single plane,-a swinging plate, means for for releasing the same, a turntable carried by said plate, and fabric-holding means carried by said plate and cooperating with said turntable, said fabric-holding means being rotatable, and said stitch forming means being adapted to vibrate during the swinging movement of said plate and the rotary movement of said fabric-holding means.

5. In mechanism for forming eyelet embroidery, the combination of stitch-forming tile stitch-forming means,

means adapted to laterally vibrate in a single plane, a swinging supporting member manually operable, means for locking said swinging member, means for releasing the same, rotatable fabric-holding means carried by said swinging supporting member, said fabric-holding means being movable with the plate and rotatable with respect thereto, and said stitch-forming means being adapted to vibrate during the movement of said plate and thefabric-holding means, an arm carried by the swinging plate, a lever pivoted to said arm and supporting the fabric holding means, a second lever beneath the swingin g plate for actuating the first-named lever, and means for actuating said second lever.

6. In an eyelet forming machine, thecombination of vibrating stitch-forming means, a swinging supporting member manually operable, a turntable carried by said swinging member, rotatable fabric-holding means carried by said swinging member and cooperating with said turntable, yielding fabric engaging means for said fabric-hold and friction producing means.

ing means, carried thereby for holding the fabric in contact with the turntable.

7. In an eyelet forming machine, the combination of laterally vibratile stitch-forming means, a manually operable swinging plate having a turntable, rotatable fabric-holding means carried by said swinging plate, and a yielding fabric engaging means for said,

fabric-holding means rotatable with said turntable. I

8. In mechanism for forming eyelet embroidery, the combination of laterally vibra tile stitch-forming means, a swinging supporting member, means for rocking or oscillating said member, means for locking said member, means for releasing the same, fabric-holding means carri porting member, said fabric-holding means including a spring-held lever and a vertically movable rotatable foot, means for vibrating said stitch-forming means during the movement of said fabric-holding means, and friction producing means for the rotatable portion of said fabric-holding means.

9. In mechanism for forming eyelet embroidery, the combination of laterally vibraan arm set at right angles to the machine, a swinging plate pivoted to said arm in the plane of vibration of said stitch-forming means, means for locking said plate, means for releasing the same, fabric-holding means carried by said plate, said fabric-holding means having a rotatable portion, means for vibrating said stitch-forming means during the movement of said fabric-holding means and the swinging plate, and yielding fabric engaging means for the rotatable portion of said fabricholding means.

10. In an eyelet-forming sewing machine,

d by said supthe combination of stitch forming means, a manually operable swinging member having a turntable, and rotatable fabric-holding means carried by said swinging member and arranged to be secured in cooperative engagement with said turntable.

11. In an eyelet-forming sewing machine, the combination of stitch forming means la terally vibrating in a single plane, a swinging plate laterally disposed with respect to the machine and in line With said stitch forming means, a turntable carried by said plate, rotatable fabric-holding means carried by said plate and arranged to be secured in cooperative engagement with said turntable, and means for vertically moving said fabric-holding means.

12. In an eyelet-forming sewing machine, the combination of vibrating stitch forming means, a bracket projecting beyond the base of the machine, a swinging plate having a turntable and pivoted to said bracket, fabric-holding means carried by said plate and cooperating with said turntable, said plate being manually movable with the fabric-holding means, means for locking said swinging plate in line with the vi brating stitch forming means, and means for releasing the locking device, said fabricholding means being manually rota-table at one end of the swinging movement of said plate.

copies of this patent may be obtained for five cents each, by addressing the 13. In mechanism for forming eyelet embroidery, the combination of stitch forming means laterally vibrating in a single plane, a. swinging plate, a bracket for supporting said plate, means for locking said plate, means for releasing the same, a turntable carried by said plate, holding means carried by said plate and arranged to be secured in cooperative engagement with said turntable; said stitch forming means being adapted to vibrate during the swinging movement of said plate and the rotary movement of said fabric-holding means.

14. In mechanism for forming eyelet embroidery, the combination of laterally vibrating stitch-forming means, an arm set at right angles to the machine, a swinging plate pivoted to the outer end of said arm in the plane of Vibration of said stitchforming means, a turntable carried by said swinging plate, and rotatable fabric-holding means carried by said plate and arranged to be secured in cooperative engagement with said turntable.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

RUDOLF LOEB.

Witnesses:

MURRAY 0. Borne, WM. A. BARR,

Commissioner of Patents,

Washington, D. G.

and rotatable fabric-

Images