US1231824A - Feeding mechanism for sewing-machines. - Google Patents

Description

J. P. WEIS. FEEDING MECHANISM FOR SEWING MACHINES. APPLICATION FILED AUG.I7. I9o3.

9 @41h Patented July 3, 1917.

3 SHEETS-SHEET 1.

YQ'WIIIIIIIIIIIIIIIIIIIIIIJ WWII/cuco JA P. WEIS.

FEEDING MEcHANlsM FOR SEWING MACHINES.

AFPL|CAT|0N FILED AUG-17| 1903- LQ 24V Patented July 3, 1917.

3 SHEETSSHEET 2.

Si nl Z4 &\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ Ma www# J. P. WEIS.

FEEDING MECHANISM Foa SEWING MACHINES.

APPLICATION FILED AUG.17, 1903- jlpgjlgo Patented July 3, 1917.

3 SHEETS-SHEET 3.

ill-llamas:

f5. www

Jenn r. wars, or BROOKLYN, new Yoan, Assreiionr BY nnsnn'nssrennnn'rs, ro Lucius 1v. Lrfr'rnnnn, `or GLovEnsvrLLE, new. Yoan.

rnnnnte rancnnmsn non snwrnenacnmns.

mensen. Y

Specitlcationpf Letters Patent.

Patented Qlfnlly, MM?.

origmaiappncwm med Marches. liena, serial no. 149,651. raten no. 922,646, dated may aa, lacie. Divided and this application led August 17, 1908.l Seriallilo. 169,683.

. To all whom z't concern.'

Be a known that i, JOHN' P. Warst eiazenof the United States, residing 1n Brooklyn, county of Kings, and State of New York, have invented a new and useful lmprovement in Feeding Mechanism for Sewing-Machines, of Which-,the followingisI a description.

My Invention relates to sewing machines of the type in which the binding and sewing are done simultaneously. Partlcularly, my

' stretching the one relatively to the other.

My invention isA specially useful in bindinvention lrelates p to feeding mechanism by which bindings may be applied to allkinds of material, whether woven, knitted or otherm wise produced, and in which the material and binding may be advanced to and fed from the stitch-forming mechanism simultaneously, evenly and withoutl puckering or i ing knit goods or loosely woven fabric, be-

cause such materials -stretch excessively under the action ofthe feed and during the application of the binding, the latter being ordinarily, of closerl weave or `texture an not liable to stretch or stretch to the same extent. With these conditions of the work,

diiculty has been ',found in mechanically applying the binding evenly and smoothly and ina manner to overcome the-tendency of the material and binding to jpucker relatively and produce unsightly work.

One of the objects of my invention is to provide a feeding mechanism by which bindings may be applied to all kinds of fabric with facility, rapidity, 'accuracy and -neatness; and by which the tendency of the material and binding to puclrer relatively is overcome and prevente Another object of my invention 'is to provide feeding means-for controlling the conditions of the material and binding as they them to perform, under the control of the4 `on the line 2-2 of Fig. l;

parts;

operator, a great variety of work, such as fulling one piece of material relatively to another so as to take the stretch out of the same; or stretching one piece of material on or relatively to another so `as to oyercome any tendency to pucker or gather. y

It is a still further object of my invenlne tion to provide a means by which any de# Y sired length of feed may be obtained y'durin the operation of the machine and by which, aftera, maximum and minimum length of feed have been determined upon, either one -of thetwo extremes of `feed may be obtained l instantly and with certainty during the operation of the machine.

Another object" of my invention is to provide mechanism for lifting the presser-foot and parts carried thereby, and mechanism y for adjusting the feed, which two mechanisms can be actuated by the foot and knee of the operator, thus leaving the hands of fabric in its mechanism.

Another object vide means by which the feed, carried by the presser-foot, may be thrown ont of action andrendered without function,-without af-.

fecting thel operation and functions of the lowerffeeding mechanism.

With the above bbjects in View', and others tion consistsin the parts, elements, features and combinations hereinafter described and claimed.

ln the drawings:

Figure 1 is a perspective View of the front end of .a machine showing my invention, the cloth-plate being' omitted;

Fig. 2 is a vertical section approximately Fig. 3 1s an end elevation of that part of the machine below the presser-bar;

Fig. l is a perspective showing the pres# ser-foot and the feed-foot combined, and en larged y Fig'. 5 is a detail perspective showing1 the parts of Fig. -2li, separated and inpcsition for.. assembling;

' Fig. 6 is a detail showing the disposition of the treadle, knee-rest and lconnecting 'Fig 7 is a front elevation of the parte shownv in lFig. 6; and

\the latter entirely free for controlling the' passage to the stitch-forming,

of my invention is to prowill be hereinafter noted, my invenimi Fig. 8 is a top plan showing the throatplate, folding guide and a section' of the cloth-plate. f

The main frame is indicated by 1; and 2,

4is the driving shaft 3, the needle-bar which is caused to reciprocate vertically 1n the head of the machine. The stitch-forming mechanism has n'ot beenzillustrated because the same forms no part of my invention and because it is desired to clearly portray the important featuresv of my invention.

The main shaft of the machine carries at its forward end a slotted disk 45, to which is adjustably connected, in usual manner, the connecting rod 5, the cuter end of which is connected to the outer end of a short shaft 6, carried by the feed-rockingframe 7, suitably journaled in the bed-plate of the machine. The short shaft 6, of the rocking frame 7, has ,fixedlthereto the feed-bar 8,

which carries at its outer end the feed-dog 9,

which may be connected thereto in any suitable manner. "-The feed-bar 8, has a guideway therein in which reciprocates the feedbar 10, and which is given its feeding movements by mechanism hereafter noted. The two bars 8 and 10, are caused to have vertical movements by the same means, said means being an eccentric 11, on the mainshaft, embraced by the bottom of the bar 8,

l and an angular arm 12, carried thereby.

The bar 10, carries a feed-dog 13, which is secured in usual manner in the end of the bar 10, by means of a screw 14. The feed movement of the dog -9, is adjustable by means of the connection of the arm 5, with the disk 4, on the end of the shaft 2, in usual manner.

The 'feed movements of the dog 13 are produced by means of the lever 15, pivoted at'its lower end to the bed-platel of the machine, or a bracket thereof, and connected at its upper end pivotally with the bar 10, the connection being provided by means of a screw 16, carrying a shoe or block 17, sliding -in a longitudinal slot 18, in the lever 15, and said screw entering the bar l0, the shoe or block pivoting or swiveling on the screw.

Hence, the disk 4, connection 5, rocking-v frame 7, arm 20, lever 15 and connections tothe bar 1 ()l are the feed-actuating elements,

and said bar 10 would have feed movements the bar 10, are regulated and controlled by' means of the three-armed lever r19, journaled at its vertex 'to the short shaft 6, carried by the rocking frame 7. One arm 20, of the lever, is provided with a pivotally connected shoe 21, which embraces and slides longitudinally on the lever 15. The am' 22, of the lever depends below its pivot and has -connected thereto an angular bracket 23,

by meansof the screw 24:, extending through a longitudinal slot A25, in the bracket, and the head of which screw clamps the bracket to the arm. A pin 26, is connected to the arm 22, and projects into the slot 25, bf the bracketand acts as a limit for its adjustment in one direction and also prevents the frame, because the angular-bracket 23, hav` ing 'the portion 27 which vcarries the pin 28, is adjustable -on the depending-arm 22 of the three-armed regulatin lever, so as to regulate the movement o the arm 2O of said lever in one direction, by engaging the rocking-frame 7, while the depending-arm 22 has an angular portion 29, through which passes the adjusting-screw 30 one lend of which engages the said rocking-frame 7 to regulate the movement of the arm 2O in the opposite direction. The third arm 31, of the lever has connected thereto, in any suitable manner, the chain 32, or other suitable device, which at its lower'end, is connected to the treadle 33. -At some point between its ends, the chain, or other connection, is provided with a coiled spring 34, which when pressure is applied to the treadle causes the chain to transmit a yielding pull upon the arm of the lever 19, and also -prevents the vibration of thedatter, caused by the rocking frame 7, during the operation of the machine, fromI being transmitted to the foot on the treadle, as hereinafter noted. The interposition of the spring also takes up any slack in the chain which may occur between its ends andv prevents thel chain from rattling during' the rapid operation of the finachine. To still further prevent rattling and to take up the slack infchain 32, the spring "35, connected to the chain and frame4 of the machine, is provided. Normally, the lever 19, isheld with its arm 20, depressed by means of a spring 20X, that is to say, the sprlng keeps the 'stop 28, yin contact with the web' of frame 7, whatever the initial adjustment may be, and after'the adjust- Ament has been altered by depressing the arm 31, of leven 19, and the lever has `been released, the spring will return the'stop 28, into contact with the web of the rockingframe Hence this mechanism, including Vlos incassa the treadle 33, connections 32, 34/and 35 and arm '31, provides and constitutes a mechanism for controlling the throw of feed-bar l0 independently of the movement of the feed-bar 8, and Iis under the control of the operator at all times, irrespective of the speedof the machine, and its operation does not affect the stitching or other operations of the machine in any respect.

The feed-bar 8, has connected thereto a vertically adjustable bracket piece 36, the same being rendered adjustable by means of the longitudinal slot 37, therein and the screw 38, passing therethrough into the bar. At its upper end the bracket 36 has pivotally connected, or hinged, thereto an arm 39, the joint 40, between the two beingclose and tight in order that when said arm is. turned down out of the way, below the cloth-plate, the same will be prevented from moving and from rattlingagainst the cloth-plate, the feed-bar or any other, adjacent part ofthe machine, during the operation of the latter. At its upper end the arm 39, is provided with an aperture or screw-threaded bore 41, coinciding with the smooth bore 42, in the rear end of an upper feed-foot 43, which is pivotally and slidingly connected with the presser-foot 44. The clamping screw 45, which `connects arm 39 and feed-foot 43, is provided with an enlarged head, a smooth stem portion 47, and a reduced screwthreaded portion 48, and detachably connects the arm 39, with the rear end of the feeding-foot. The forwardl end of the foot is provided on its bottom with serrations or feed-teeth 49. The upper feeding-foot operates in an elongated slot 50, in the short portion 51, of the presser-foot. Said presser-foot 44, is also provided with the long portion 52, which bears uponand coperates with the feed-dog 13. The presser-foot is provided with three vertical bars 53, 54,

55, extending longitudinally thereof and providing between the same the slots or grooves 56, 57. In the groove 57, is suitably secured the downwardly depending lug 58, of thesocket.- 59, which'surrounds and is clamped to the presser-bar as usual 4 In the groove 56, the feeding-foot 43, slides and rocks on the screw 60, passing through the bar 53, slot 46,A and into the bar 54'.`

The feeding-foot operates oppositely to a smooth and solid part 62, of the throatplate 61, and close to and beside the needle apertures in the throat-plate and the presser-foot. The rear portion of the short part of the presser-foot coperates with the feed-dog 9.

The throat-plate of the machine set in the grooved slide-way of the cloth or work plate a., as usual, is provided with the elongated slot 63, for the reception of the lower feeddogs, and as before stated With the solid portion 62, for receiving the pressure of the upper feed-foot. 1n advance of the said firmly in proper position and permitting the said elongated portion of the guide to reach and operate close to the needle aperture in the -throat plate. The binding guide includes' the ,"supporting plate 68, which is secured to the cloth-plate of the machine by means of the collar land fastening screw y 69. Said plate has secured thereto a suit able strip-guide 70, and in advance thereof is provided with a curve-d strip-guide 7l, which leads in the binding and properly turns the same upon the edge of the work.

The lower portion of the curved strip-guide at its base is provided with the forwardly extending portion 67, which lies in the depression and against the flange 65, of the throat-plate, close to and just in advance of the needle aperture as described. Ex-

,. tending parallel with the elongated portion of the guide, is a wire or small bar 72, secured at one end to the guide in any suit- A able manner, and at its forward end being bent at an angle to'its main part as at 73, and extending in front of the elongated portion 67, of the guide and between the forward end of the latter and the needle aperture in the throat-plate. The forward end of the supporting plate 68, is extended at 75, and provided with a vertical wall 76, affording a guide for the edge ofthe material or work.

The binding guidehas not been described more in detail as the same does not form part of the invention inthis case, butis, or

may be, in all essential particulars the same as the binding guide shown in my 4 Patent 'No. 922,646 granted May 25, l1909, of which this application is a division.

y, The presser-bar'59", is provided with the laterally projecting lugvor arm 77, upon which bears/the spring 78, which normally tends to hold the bar down to its work, and the pressure of whichJ spring is regulated bythe adjusting-screw 79, and jam-nut 80, extending through the frame of the ma chine and bearing upon 'said spring. A lever 81, pivoted to the arm of the machine, has its forwardly extending arm 82, located under the lateral arm 7 7, of the presserfbarg said forward arm 82, being normally held out of contact with said lateral arm of the presser-bar byv means of the coiled spring 83, secured tothe arm of the lever and to any stationaryVV part of the machine. 'The rear arm of the lever is connected by means otally connected to a link 89, which in turn is pivotally connected to the knee-rest 90, suitably pivoted to the table and depending in convenient position for operation.

`The depression of lever 8l, is regulated by the adjustable stop 81", passing through the frame of the machine,-see Fig. 1. This lnechanism enables the operator to control the presser-foot and upper feed-foot so as to lift the same at willor control their presj sure on the work at any time.

A vsecond 'treadle, located beside the treadle33, which operates the feed-adjusting mechanism, controls a clutch-mechanism cooperating with a prime-mover which conveys power for operating the machine, as'

isusual and unnecessary to illustrate.

The operation of my machine is as follows:

one of the principal objects of mymachine, comprising the differential feeding mechanism and the binding mechanism, is to apply a binding to a piece of material, ora garment, smoothly and evenly, and Without puckering 'or stretching the binding and the material relatively; Another of the princilpal objects is to turn an absolutely angular l corner on the work or garment with the binding; that is to say; in turning corners or angles it has heretofore been a ditlicult matter to turn an angular corner evenly and perfectly, the normal tendency in turning corners, in applying Athe binding, being to round the vcorners and tostretch or turn under or, in some other manner, distort the binding on the material. objectionable, makes unsightly work and reducesthe valuev of the-fnlshed article.

By the mechanism `which I have described above the binding can be applied evenly to the material, without gathering or stretching the one relatively to the other, and angles'can be neatly turned and the corners perfectly stitched down. j

It should be noted that the feed-dog 13, coperates with the solid portion 52, of the presser-foot in clamping and feeding the body material; and that the feed-dog 9, cooperates with the portion of the presser-foot in rearof the short foot 51, Yfor feeding the binding in rear of the needle aperture; and

that the upper feed-foot operates upon theupper fold,of the binding and `coperates with the smooth portion of the throat-plate thereunder. The edge of the body material is placed in the channel of the binding-guide Primarily, it should be understood that This obviously, is

the guide 7 0,which is suitably slotted for the purpose and then into the folder or guide 71, its lower fold being fed out of the end of the extension 67, and under the extension 73,

of the bar 7 2, and between the extension 73, of said bar, and the throat-plate of the machine. The throw of the feed-dog 9 is properly adjusted by suitably placing the'connection between the arm 5, and the disk 4; and the throw of the feeddog 13 is suitably regulated, as to its initial throw, by adjusting the bracket 23, upon the depending arm 22, of the lever 19. Assuming the link 5 be adjustedon the disk 4 so as to give a normal feed movement to the feed-bar 8, and dog 9, ythe three-armed lever, in the adjustment shown, will, obviously, give a greater movement to the feed-bar 10 and dog 13, since the connection 2021 with the lever 15 is close to the pivot of the latter. This means that the main body of the work will be fulled to an extent often required in operating upon knitted. goods, While the binding and that edge of the garment to which the binding is applied will be fed slower with the result of giving to the garment, if it be the necklso opening of a shirt, the desired rounded effect. This coperative action of the feeddogs also overcomes thenormalstretchof the work resulting from the body thereof hanging over the edge of the work-plate as the same is fed up to the stitching. position.l

much as the one is above the other, just so `much will the work be stretched; that is tofsay, the feed-dog 13, operating upon the main body of the work, will be caused to travel slower and give a shorter feeding movement to the work, with the result that the work, 'for example knitted goods, will be stretchedor elongated to the desired extent in front of the stitching'position during the normal feed action of the feed-dog 9,

thus compensating for the natural stretch of the binding material, or enablingthe body and bindingto be brought out evenly at the end of the seam or work. Ordinarily, the dog 13, will be caused to have a greater throw than the dog 9; an'd'if at any time duringthe operation of the machine, it is desirable to make the throw of the two dogs uniform the. treadle 33, would be depressed, thus depressing arm 31, or lever 19, elevating arm 20, ,of said lever and causing the pivotal connection ofsaid arm with the lemensen ver 15, to coincide with the pivotal connection between the lever 15, and the bar10.

may bejquickly and positively obtained by setting the adjustable stops 28, and 30, in predetermined positions, and such cntremes of adjustment may be obtained during the rapid operation of the machine, and without affecting the stitch-forming mechanism, by depressing the arm 31, of the lever 1 9, as previously described. The spring 34, is in-y terposed inthe length of the cha1n32, for the purpose, principally, of avoiding the v1- bration of the rocking frame 7, being transmitted, through the lever 19, and the chain 32, to the treadle 33, and to thefoot of the operator which is constantly in contact therewith. Battling ofthe chain onthe treadle 33, is avoidednby taking up the slack by means of the spring 35.

The knee-rest 90, is convenientlyv located for actuation by a side movement of the knee of the operator, such movement being transmitted through the link 89, and rod 87, to the rock-shaft 86, and thence through the arm 85, and chain 84, to lever 81, thus elevating its short arm 82, and lifting the presser-foot 44, from the work together withy the feed-foot' 43. This elevation of the preser-foot may be a great convenience at any time during the progress o f sewing, and is necessary, of course, in placlngthe work to begin sewing. The knee-rest mechanism aords a convenient and ready means for lifting the two-feet and `l-for n leaving the hands of the operator free to properly manipulate the dierent parts of the work and Vvattend 'to other necessary things above the; "work-plate,

The extensions 73, of thebar'72, prevents the curling, or sliding, or any lateral movement of the lower fold of the binding, as

will be obvious.' It will be clear from the n should be noaa that in sewing the bina- 'j ing togarments, or other work, f thecharn acter contemplated,l it is necessary to in anipulate the feeding-mechanism' so that, in sewing alongpthe straight edges, all the feeddogs shall have thesame speed, this being accomplished 'by depressing the treadle 33, .and placing'the connection 21%, coincident withthe connectionld. But, when -a corner has been turned, and the sewing iss-begun along a/curvededge it is necessaryr to cause the feed-dog 13,-toffeed faster than` the `dog 9 and thcjfoot 43, which is accomplished by releasing the jtreadle 33, and allowing" the arm 20, to be returned to the predetermined position by the spring 20x. l j

The connection between the 'feed-foot and the bar 8, is removable as, previously stated, this construction enabling the feed-foot to be thrown out of operation at any time it is desired to use the' machine for'any purpose for which said feed-foot would not be essential. lfhe adjustable connection of the feed-foot with the bar 48, enables the foot to beregulated vertically and its pressure `or grasp upon the work adjusted at will.

operated -upon, the elevation of the presserfoot would lift the feed-foot too high `for contact with and proper operation upon the lec p Moreover, when very heavy Worleis being enables the said arm to be `turned down below the ,clothfplatef-when the' feed-foot is not in operatiom-and'the tight fit between the arm and the plate`previously described,

prevents said arm from rattling against adsay, the adjustment of plate 36, up or down,

will control thev pressure of the feedffoot upon the work and the pressure of said-foot .on the work controls the effective feed-movenient.- For example, if the plate 36 be loweredmo're-than is shown in Fig. 2, the grip of the 'feed-foot onthe work will be lighter and less positive and, consequently, the effective feed-movement of said foot Will be less than that of the feed-dog 9 and the t work will not be fed to the samey extent by said foot as by said dog; but, with the adjustment shown in Fig'. 2, the said foot and dog will operate upon the work with the same e'ect and their e'ective feed-movements will be the same.

From the above description it will be manifest that I have\ produced a feeding mechanism having characteristics which render it specially useful tor the purpose of applying bindings to all kinds of goods, as

' set forth in my applicatie l above referred to; butit is to be understood and it will be 1 apparent, thatby proper adjnstments the feed may be caused to full one piece of goods upon another, or may beycaused to feed several pieces'of work with`\the same relative speed. j r

1n the lforegoing description, 1 have lreferred to two feed-bars, the one 8 c` rrying dog 9, and the one 10 carrying degli. `0rdinarily, the feed-dog-operating upon the main fabric, or the one to which the binding is attached, wouldy be designated the main feed-dog, and its bar the main feedbar, while the other would be designated the auxiliary feed-dog, and its bar the auxiliary feed-bar. Inasmuch, however, as certain important features of my invention are applicable to either of the bars, and also inasmuch as the main body fabric, in certain `machines to which the feeding mechanism may be applied, may be manipulated by a feed-dog having the location or disposition of my feed-dog 9 in the machine, I have avoided using the terms main and auxiliary dogs and main and auxiliary bars, excepting in a general sense, and not in a sense of special application to either of the bars. Furthermore, in the art the feed-dog, which operates upon the combined materials, viz., the body material and its applied binding, or upon the several layers of material being sewed together, is, frequently called the main yfeed-dog. Therefore, in order to have my claims appended hereto understood and read in the broadest possible sense with reference to the manipulation, cooperation, and interaction of my two feed-dogs and their carrying bars, I have avoided the use of the terms main and auxiliary 'as applied to either ofthe dogs or their carrying bars. Hence, it is to be understood that, in the appended claims, where the terms maimand vauxiliary are employed, said terms apply equally, and interchangeably, to the said two bars and their dogs.

. Having thus described my invention what I claim and desire to secure by Letters Patent is: y

' l. A feeding mechanism including three independent feeding-devices; common means for giving to said devices their 'vertical movements; common means/for' imparting the feed-movements to two of said devices;

" andindependent means for imparting the feeding movement to the other of said devices.

2. A feeding mechanism comprising a" feeding device located above the work-plate; a feeding device located below the workplate; means for actuating the two feeding devices; means for regulating the throw of the lower feeding device including an actuating device located below the work-plate;`

rality of feed-bars, each bar carrying a feeddog and said dogs being arranged in parallelism; means for imparting feeding movements to said bars; means for regulating the feedingmovements of said feed-bars; and .treadle-operated means -for controlling the throw of one of said 'bars independently of the other during the running of the ma'- chine and at the will of the operator.

4. A feeding mechanism comprising a plurality of feed-bars, each bar carrying a feed-dog and saiddogs being arranged in parallelism; means for imparting vfeeding movements to .said feed-bars;` means for regulating the feeding movements of said feed bars; and treadle-operated means for controlling thethrow `of one of said bars independentlyof the other, including a device whereby predetermined extremes of such throw may be instantly obtained.

5. A feeding mechanism forA sewing machines comprising a feed-bar, and mechanism for imparting feeding movements to said bar, comprising a vibratory lever, and a three-armed lever, one arm'of which latter has a sliding connection with said vibratory lever, another arm of which carries means whereby the feeding movements may be regulated, and the other arm of which is accessibly-presented for ready manipulation by the operator so as to control the feeding movements.

6. A feeding mechanism comprising a feed-bar; 4means for imparting feeding movements, to .said bar including a lever pivoted to the frame of ,the machine and A having a sliding connection with said bar;

a lever having a sliding connection with said first-named lever; means coperating y 7. A feeding mechanism comprising a plurality of feed-bars; a rocking-frame to which said bars are connected; means for actuating said rocking-frame; a lever pivoted to the frame of the machine and having a sliding connection with one of said bars; a lever carried bysaid rocking-frame and havin a sliding connection with said first-,name lever; and means. coperating with sa/id last-named lever for controlling its movements and thereby'also controlling the movements of said lirst-named lever and .its connected feed-bar.

8. A feeding mechanism .for *sewingl machines comprising a reciprocating bar lo,- cated below the cloth-plate, a rockingo frame, andy a ivotal connection` between said frame andpbarj'a feeding-foot pivotally supported vand located above the clothplate; and a connection between the bar and foot including .a plate adjustable on the bar,

whereby theI vertical position lof the foot may be determined.

9. A feedingmechanism for sewing-'mamense/i chines comprising afeeding-footl supported and operating above the cloth-plate, a reciprocating bar operating below the cloth-plate v tion of said feed-dog and foot,andxvertical position of the foot, may be determined.

10. A feeding mechanism for sewing machines comprising a feeding-foot supported and operating above the cloth-plate, a reciprocating bar operating below the cloth-plate and carrying a plurality of independentlyoperable feed-dogs, means for actuating the said dogs, anda connection between the feeding-foot and the bar includinga plate adjustable on the bar, whereby the vertical position of the foot may be determined.

11. A feeding mechanism for sewing machines comprising a feeding-foot supported and operating above the cloth-plate, a four- .m'otion feed-bar carrying a dog operating below the. cloth-plate, means for actuating the bar, and a connection between the feeding-foot and bar including an adjustable bracket, whereby thev vertical position of the .y foot may be determined.

12. IA feeding mechanism for sewing machines comprising a feeding-foot operating Veo above the cloth-plate, a support for said foot including a connection enabling they foot to` have a rocking and sliding movement, a reciprocating bar operating below 'the clothplate, vand a connection between the bar and the foot including an adjustable bracket, whereby the vertical position of the foot may be determined.

13. A feeding mechanism for sewing machines comprising a reciprocating bar carrying a feed-dog, a feeding-foot supported independently of said bar, a detachablefcoI-i-l nection between the foot and the forward end of said bai' including means whereby, when the connectidnl is detached from the foot, the said connection may be turned aside and held to avoid'rattling or contact with adjacent parts. f

14. A feeding meehanismfor sewing ma-v chines, comprisingwa reciprocating bar carrying a feed-dog; a feeding-foot supported independently of said bar; means for actuating said bar .including a rocking-frame;

' a connection hinged to said bar and pivoted to said foot whereby the latter is driven directly from said bar; and means whereby the pivot may be detached from said foot to enable the connection to be turned .upon its hinge out of the way of the operatoi` and the'foot to be thus put out of action.

l5. A feeding mechanism for sewing machines, comprising a feeding-foot suitably supported above the work-plate; a bar reciprocating below the work-plate; means for actuating'said bar including a rocking- `fname; a connecting-plate hinged at one end throw or feed-movement during the operation'of the machine, comprising a constantly moving member, a device under control of the operator, and a connection between the said menrber and device including an elastic section whereby the movement of said member will not` be transmitted to said device and rattling in said connection will be absorbed.

17. A feeding mechanism for sewing machines, including means for changing the feed-movements during the operation of the machine, comprising a lever, a device under control of the operator, a exible connection between the two, and means for controlling the4 slack inthe iieXible connection.

18. A feedingmechanism for sewing machines comprising a lower feeding device; an upper feed-foot coperating with said feeding device; means for actuating the said device and foot; and means for bodily liftingthe footfrom coperation with said deviceincluding a normally stationary springcontrolled lever, a device under control of the' operator, and a chain-connection between the two.

19. A feeding mechanism forisewing machines comprising a lower feedingI device; an upper feed-foot coperating with said feeding device; means for actuating the said device and foot; and means for bodily lifting the Vfoot from cooperation with said device including a normally stationary springcontrolled lever, a device under control of the operator, and connecting means between chines including a feed-dog-carrying bar, 4 means for actuating the -bar and regulating the throw thereof, including a curved lever 'having ya sliding connection with said bar,

a rocking-frame, a lever pivotally carried thereby, and a sliding lconnection between 4said lever and the curved lever.

21. A feeding mechanism for sewing inachinescomprising a yfeed-dog-carrying bar, means for actuating, and regulating the throw of, said bar. including a curved lever supported below 'the bai' and having a sliding connection therewitlna rocking-frame, a lever connected thereto, and a connection between said lever and the curved lever permitting adjustment of the one relatively to the other.

22. A feeding mechanism for sewing machines including two yfeed-bars, a rocking` frame, a curved lever having a fixed pivot and operatively connected to one of said bars, actuating connections between the rocking-frame and the curved lever and be` tween the rocking-frame and the other of said bars,and' means, operable during th'ev other, a rocking-frame, means between the frame and one of the bars foractuating the latter, means betweenthe frame and the other of said bars for actuating the latter and regulating the movements thereof, and a controlling mechanism including a spring for holding the said actuating and regulating means in a normal adjusted position.

24. A feeding mechanism for sewing machines inchiding two feed-bars, -a rockingframe connected to and actuating one of said bars, means for actuating and regulating the movements of the other of said bars, including a lever connected to said latter bar and to the frame of the machine, and a lever pivoted to the rocking-frame vbetween its ends and having a freely 'sliding connection at one end with the first lever, and having its other end free for manipulation.

25. A feeding mechanism for sewing machines including two feed-bars, a-roclringof said bars for actuating and regulating themovements thereof, and means including a lever carrying a duplex feed-regulating device coperati ng with the rockingframe t limit the action ofthe regulating mea s. y

26. A feeding mechanism for sewing machines comprising a driving-shaft, a plural'- ity o'f feeding-devices, and positive drivingy connections between the shaft andfsaid devices for actuating the latter, and means 28. A feeding mechanism comprising a plurality of feed-bars, each bar carrying av feed-dog 'and said dogs beingl arranged in parallel1sm;i.and actuating mechanism for .said feed-bars, including means for varying the action of one of said devices relatively tothe-other during theoperation` of the machine, and also including means, whereby such variations may be gradually increased i or decreased between two predetermined limits. l

29. A feeding mechanism for sewing machines comprising a feed-bar carrying a dog; a second feed-bar carrying a'dog in parallelism `w-ith the other dog; means for actuating said bars means for regulating the throw or feed movement of oneof said bars relatively to the other; anditreadle-operated means for controlling the feeding action of said latter bar, said means being accessibly presented toV the operator so that he may actuate the same during the operation of the machine.

30. A feeding mechanism for sewin machines comprising a plurality of fee -dogcarrying bars; means for regulating the' movements of one of said Abars relatively to the other; and treadle-operated means for controlling f the action of said `latter bar wherebypredetermined extremes of adjustment'- may be instantly obtained, -said controlling vmeans being accessibly presented to the operator so that lhe may actuate the same at any time during the operation of the may dling the work.

31. A feeding mechanism for sewing machines comprisin a feed-dog-carrying bar; an auxiliary fee -bar; means 4for actuating said feed-bars; means for adjusting Vthe movement of one of the feed-bars relatively to the other; means .for regulating the action of the latter feedbar in respect of its extremes of feed movement; andl treadlechine and have'both his handsfree for hanoperated controlling means for changing the -throwof the latter feed-bar as well as for obtainmgpredetermined extremes of adjustlocated below the @10th-plate of the machin@ ment, sald means being. accessibly presented and connecting `with the driving connections whereby one of the feeding-devices may be given movements of varying lengths relatively to the other of said devices during the operation of the mechanism.

27. A feeding mechanism comprisin driving-shaft, a rocking-frame, a feedar journaled upon said frame and carrying a dog, connections between the shaft and frame, connections between the frame and bar, said latter connections including a controlling-device, accessibly disposed so as to to the operator so that he may operate the same at will and have both his hands free. for handling the work.

' B2. cloth-feeding mechanism having, in

combination, a device for engaging the bot- `tom of the'work'; avdevice 'for engagin the j )top of the work; means for giving sai -de 'vlees' relative actionya tradle-operated con trolling means coperating with one of said devicesfor'manipulating the same to change its action on the work at the `will of the operator; and anindependent controlling lmeans coperating with'the other of said devices for manipulatingfthe same at the willof the operator;

33. In combination, a stitch-forming mech anism; a feeding mechanism for moving 'the `werk past the stitch-forming mecha- 130 mensen i.

nism; aniauxliary mechanism coperating f with the feeding mechanism for engaglng l and controllingthe work; a presser-foot mechanism -coperatin with the said feedand auxiliary `mec anisms; and a contro ing mechanism cperating with thepresser-foot mechanism, for modifying the action of the feeding and auxiliary mechalowering said' bars simultaneously, means l for giving said bars independent feed movements', including a treadle-operated controlling device` coperating with one of the barsA for modifying the laction of the latter during the operation of the machine and without affecting the stitchin action thereof 'or varying the stroke of t e otheri feed-bar. t

35, 1n Combination, Stitch-forming mechanism, feedin mechanism includmgf a mainy andan auxillary feed-bar arranged in parallelism, means for imparting the rise and fall to said b ars, means for imparting the longitudinal movements to said bars, mcluding a eo f trolling the action of oneA o means for oo nthe bars during the operation of the machine and. without ltreedle-operated controlling affecting the stitching Vaction thereof, and

without varying the stroke of the other feedbar.

drivin -shaft, means for actuating'said bars includ; Aa:Locking-amr, an adjustable connectionv lvtween said arm and the drivingshaft, a controlling-device, independentof vthe adjustable cotlon, connectmg said y machine.

arm with one of the bars whereby the motion of the arm imparted by the driving-shaft may be modified in the said bar without varying the action of the. `other feed-bar; and means whereb may be shifted during the operation of the 37, In combination in a feeding mechanism, amain and an auxiliary feed-bar a driving-shaft, a rocking-arm, an adjusatl@ connection between' the drivin -shaft and` sald arm, a drlving cpnnectlon etwee'n one of the-feed-bars and said /arm,' a driving connection between saidarm and the other'feedfbar, sald latter driving connection including the controlling device l n a controlling lever,'w1th connectlon's accessibly presentedto the operator whereby, durl leo 1n the running `of the machine, the action. of sa1d other feed-bar may bemodiied. A

38. A feeding mechanism having, incom bination, a mam and an auxiliary. feed-bar, common means for actuating said bars means for adjusting the-movement of one o said bars, adjusting means for varying the l stroke of the other bar, said latter means being connected with said -barand including l y parts'having -a'loose and sliding connection with each other, and means arranged acces- ,siblyto they operator and connecting with said adjusting means lwhereby, during the operation ofthe machineand Withoutvaingthe stroke of the Erstnamed feed-bar, t `e-zstrokefof the last-namedf'bar may be varied.r

'v l'n testimony whereof' I. have vherel'mto l36. In combination in a .feeding mechanis'm,a main and-an aumhary feed-bar, ar

'gned my name in the presence of two su'bseribing witnesses. e

,rompa were. vWitnesses:- i i: NK FDINEY,

' l Mo'OMAm

Images