US523932A - Sewing-machine - Google Patents

Description

(No Model.) 3 sheets-,sheet 1.

H. H. FEPEL. SEWING MACHINE.

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- H. H. FEFBL.

SEWING MACHINE.

No. 523,932. Patented Julyl, 1894. :lg--3. Y

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SEWING MAGHDUEL No. 523,932. APatent/ed July 31, 1894.

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HENEY H. EEEEL,l OE NEw YORK, N. Y., AssIeNoETO THE UNION sPEcIAI. sEwINeMVAOHINE COMPANY, OE OHIOAGO, ILLINOIs.

SEWING-MACHINE..

5PJ?CIIFICATIOL!I forming part of Letters Patent No. 523,932, dated July 31, 1894. Application led August 8, 1892. Serial 110.442.001. (No model.)

.To aZ'Z whom it may concern..- d

Be 1t known that I, HENRY H. FEFEL, a citizen of the United States, residing at New of New York, have invented certain new and which the following is a description, reference belng had to the accompanying drawlngs, and to the letters of reference marked thereon.

My invention relates to an improvement in sewing machines, class Of machines used for overseaming or uniting the edges of fabrics.

In an application filed by me June 29, 1892, Serlal No. 438,418, I have claimed a seam and a method of uniting fabrics, and in the present case describe and claim vthe machine whlch I have devised to make that seam and carry out said method.

This invention has relation especially to that .class of machines in which a spreader working from below up throughthe cloth plate carries a loop of thread over the edge of the fabrlc, where it is secured on the upper surface by the sewing needle passing through the loop, and embodies certain new and useful improvements in the working parts of machines of that general character.

My invention consists in the matters hereinafter described and referred to in the appended claims.

In the accompanying drawings which illus-- trate my invention Figure 1 is a side elevat1on of so much of a sewing machine as is necessary for a full understanding of my invention. Fig. 2 is a View partlyin section on 1ine'2-2, Fig. l. Fig. 3 is a plan View of the work plate and presser foot. Fig. 4 is a top View of the seam made on my machine. Fig. 5 is a bottom view thereof. Figs. 6 and 7 representrespectively the positions of the looper, needle, and spreader. `in the various movements thereof incident to the formation of the stitch. Fig. 8 is a plan view of a throat plate showing the retainer for the under thread when carried over the edge by the spreader; and Fig. 9 isaside view of the same.

In the drawings, A represents a portion'of the frame of the machine.

B is the main shaft.

and particularly to that.

arm which is pivoted to the frame of the ma- ,chine at D. York, 1n the county of New York and State E is the needle bar supporting the thread carrying, eye-pointed needle ct. useful Improvements 1n Sewing-Machines, of

D is the presser foot having a 4tongue l over which the spread er lays the thread. This f tongue is herein shown as made integral with the presser footbut it will of course be nn- (3o-operating with the needle d is the looper b actuated by means of the looper rod c from the extension C of the needle arm lever. Power is communicated to the parts in the usual manner.

The parts above referred to are all identical in construction with the corresponding parts in the well known Union Special Sewing Machine 'and do not need further explanation.

I donot wish to be limited to any particular construction of feeding mechanism, as any suitable for the purpose may be used.

v A rod c similar in all respects to the looper rod c-is connected at one end to the needle arm extension C just as is the looper rod, and at its opposite end is secured to it a split bearing in which is journaled a ball d on the end of a stud c secured on the lower end of a crank f, attached tothe shaft g. A second crank h is attached on this shaft and carries a stud upon which is secured the lower end of the 'spreader 'support F. This spreader support may be in one piece with the spreader G but is preferably provided with a socket c' in which the shank of the spreader is secured by a set screw 7c. The support F is pivoted as shown at Z to a link m whichin turnis pivoted to an upwardly extending arm or standard H.- The spreader is of well known construction and is provided with a vprojection adapted in the backward movement to catch the looper thread to carryit above thefabric.

It will be seen that by the manner of supporting` the spreader and transmitting motion to it through the cranks f and h, it has a movement from below the cloth plate parallel with the needle up through the plate over the edge of the fabric to a point in front of the need-le.

IOO

The movement of the spreader in co-operating with the looper and needle is shown in detail in Figs. 6 and 7, in the former the spreader being in its lowest position, while in the latter it is at the highest point in its travel.

The looper carrying the, under thread is in its farthest backward position when the spreader is in its lowest position. The needle and looper being threaded, the needle in its lowest position, the looper in its retracted position and the spreader in its lowest position, as shown in Fig. 6 the machine is started. In the forward movement of the looper it carries a loop of the under thread through the loop which has been Yformed in the needle thread, and the spreader rising, catches up the under orlooper thread and carries it up over the edge of the fabric forming a loop upon the upper surface of the fabric through which the needle in its next downward move` mentmay pass, the loops in the under thread which lie on the under surface of the fabric iirstlying within and then encircling the loops in the needle thread brought down through` the fabric.

' Itihas been found desirable in practice in some instances to provide a place to retain the under thread when carrying it up so that` the needle in its descent will pass on the back` side` of' said thread and prevent dropping stitches. My invention, therefore, further includes a means for accomplishing this object. As herein shown in Figs. 8 and 9 the throat plate isprovided with a tongue a of well known construction, over which thestitch. is formed. Beneath this tongue and to theiright of theneedle is attached a second tongue as al", and as shown in Figs.` S` and 9 in the upward movement of the spreader G the under thread isforced into the space or notch between thesetwo tongues andA thereby held at suchr an anglethat the needle in its descent will` invariably pass down through the loop formed` inthethread, thereby deiiected andV preventing any dropping of stitches.

I do not wish to belimited to any particularconstruction of retainer as other means for accomplishing the desired` result may be devised, but I` have found the above to work 1 The use of this satisfactorily in practice. retainer still further facilitates the working of: the machine in that it will commence to form a chain without lirst placing. a piece of` fabricy under the presserfoot.

I'haveshown in the present application a peculiar form'of trimmer T actuated from the feed rocker and pivoted to astandard on the cloth plate of the machine as shown in Fig. 2. Itiwill also be understood that any desired formoffeeding mechanism maybe provided soI donotwish tothe at all limited in this respect.

Various moditications.f and theexact construction herein illustrated may suggest themselves to any one skilled in and familiar with the art and I intend to include `carrying device arranged changes from all such modifications within thescope of my invention.

The trimmer and angular guard plate herein shown, but not claimed, form the subject matter of an application tiled by me in the United States Patent Office, on the 23d day of August, 1892, Serial No. 443,832.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, 'isl. In a sewing machine,in combination with stitch forming mechanism including a vertically reciprocating eye-pointed needle carrying an upper thread, an under thread-carrying device operating entirely below the cloth plate, a spreader consisting of a single pivoted lever working in a single plane from below up through and above the cloth plate of themachine to carry up the under or looper thread over the edge of the fabric Where it is secured by the needle.. thread, and means-for operating said spreader; surbstantially as described.

2. In a sewingmachine,incombinationiwith a vertically reciprocating eye-pointed needle carrying an upper thread and its complemental stitch forming mechanism comprisinga looper carrying a separateunder thread, ot a spreader independent of the looperand conlsisting of a single pivoted lever working inta single planefrom.belowupithroughandabove the cloth plate of the machinewto carryfup the under or looper thread over the edge ot the fabric inthe plane of vertical movement ofl the needle whereby itis secured by'said nee-` dle thread, and means for operating said spreader; substantially as described;

3; In a sewingV machine, the combination with suitable complemental` stitch forming mechanism andi includinganeedle armi asG, and an under4 thread carrying device, a spreader independent of the under thread to cooperatewvith` the cornplementalfstitch` forming mechanism to carry the under thread frombelow upover the edge where it is secured by` the vneedle thread, and an oscillating connection between the needle arm and the spreader; substantially as described.

4. Inasewingmachine, in combination withY stitch forming mechanism including a vertically reciprocating thread carrying eyepointed needlefor anupper thread, an under ,p thread carrying device,afspreader-consisting of a single pivoted lever independent of ther under thread carrying device and work-ing from below'upxthrough and above thecloth plate of the machine toA carry up the under thread over the edgewhere` it is secured by the needle thread, a needle arm pivoted to` the machine frame, an oscillating connection between the needle arm and theunderithread carrying device and: between the forinerand the spreader;v substantially as described..

5. In a sewing machine,.the combination with suitable cornplemental stitch forming mechanism including a needle arm having a IIO downward extension, of an under thread carrying looper, a rod driving the same secured at one end to said extension, a spreader arranged to cooperate with said complemental stltch forming mechanism and looper to carry the under thread from below up over the edge where it is secured by the needle thread, and a rod c driving the same and connected at one end to the needle arm extension; substantially as described.

6. In a sewing machine, the combination wlth the vertically reciprocating needle land under thread carrying looper, the needle arm havlng .a downward extension in operative connection with the looper, of a spreader working from below up through and above the cloth plate of the machine to carry the under thread over the edge where it is secured by the upper needle, said spreader getting its motion from said extension on the needle arm; substantially as described. l

7. In a sewing machine, the combination with the needle, the looper, a needle arm having an extension to which extension thelooper is operatively connected, of a spreader havingalever and double crank connections with the needle arm extension andarranged to carry the looper thread from a point parallel with the needle below the cloth plate, up over the edge of the fabric to a point where the needle will pass down through the loop of the thread and secure the same to the fabric; substantially as described. v

8. In a sewing machine and in combination with the needle arm-andsuitable'stitch form ing'mechanism, a pivoted arm as F havinga crank and rod connection with the needle arm and provided with a socket, and a spreader as G secured within said socket; substantially as described.

9. In asewing machine, in combination with the vertically reciprocating thread carrying needle and complemental stitch forming mechanism including a device carrying a separate under thread, a spreader independent of the under thread carrying device arranged to take the under thread and carry it in position within the plane of vertical movement of the needle, means for operating said spreader, and a stationary deflecting device and holder for saidv under thread arranged above the plane of movement of the under thread carrying device and to one side of the plane of reciprocation of the needle whereby in the movement of the spreader said under thread is caught by the deflector and held at such an angle that the needle will pass through the loop; substantially as described.

l0. In a sewing machine, the combination with suitable stitch forming mechanism in,- cluding an under thread carrying device, of a retaining device for said under thread, comprising two parallel fingers projecting from the cloth plate, with a recess between, the upper nger being of greater length than the lower, and a spreader working from below up through and above the cloth plate, and arranged to carry the thread into said recess in its upward movement; substantially as def scribed.

1l.- In a sewing machine, in combination with the vertically reciprocating needle and complemental stitch forming mechanism including a device carrying a separate under thread, a throat plate provided with a tongue over which stitches are formed, a spreader arranged to take the under thread and carry it in position within the plane of vertical movement ofthe needle with means for operating said spreader, and a retainer for said under threadl attached to the throat plate to the right of the needle and beneath the tongue on the throat plate; substantially as described.

.12. In a sewing machine, in combination with the needle arm having a downward extension, and complemental stitch forming mecl1anis`m,-a spreader, a support therefor, the crank h attached tothe support, the shaft g,the crank f, and the connecting rod c',

driving the crank f and connected at its opposite end with the needle arm extension; substantially as described.

13. In a sewing machine, in combination with the needle arm having a downward extension and complemental stitch forming mechanism, a spreader, a support therefor, a pivoted link m, to which said support is pivoted, a crank h pivot'ally attached to the lower end of said spreader support, the shaft g to which said crank is secured at one end, the crank f secured to the opposite end of the shaft g, the rod c secured at one end to the needle arm extension, and a ball joint connecting the opposite end thereof with said crank f; substantially as described.

14. In a sewing-machine having a presser foot, in combination with the vertically reciprocating needle carrying an upper thread, an under thread carrying device, a throat plate provided with a tongue over which the stitches are formed, a spreader independent of the under thread carrying device arranged to take the under thread and carry it in position within the plane of vertical movement of the needle, means for operating said spreader, and a combined deflecting and retaining device for said under thread independent of the presser foot and of the tongue on the throat plate; substantially as described.

f 15. In a sewing machine having a cloth plate, in combination with a vertically reciprocating thread carrying needle, a device carrying a separate under thread, a spreaderindependent of theunder thread carrying de vice arranged to take the under thread and carry it up over the edge of the fabric where it is secured by the needle thread, means for operating said spreader, and a stationary combined retaining and deflecting device located below the cloth plate and so arranged with respect to the path of movement of the IIO spreader as to catch and hold the under thread when carriedupfthereby; substantially as described.

16. In a sewing machine, a throat plate provided with a tongue over which the stitches are formed, stitch forming mechanism including a spreader and avertically movable needle said spreader workingfrom below up through and above the cloth plate of the machine and carrying a thread from below, over the tongue on the throat plate into the path of vertical movement of the needle, and a combined deflecting and retaining device located to one side of the needle and in a plane above the plane of the lowest position of the spreader, but intersecting the' path of thethread carried up by the spreader, whereby in the -upward movement of said spreader, the thread is carried into the retainer and deflected and held therein whilethe needle passes through the loop;` substantially asdescribed.

17.. In a sewing machine, in combination with suitable stitch forming mechanism, a throat plate provided with a tongue over which the stitches are formed,a second tongue parallel therewith and beneath the same, with -a deiiecting and holding recess Abetween the two, into which the under thread is adapted to pass; substantially asdescribed. y

18. In a sewing machine, the combination with two reciprocating thread carrying devices cooperating to form stitches, and a spreader independent of the said thread carrying devices, of a single lever and i`ndependent operative connections between the lever and said several parts, with means for operating said lever; substantially as described.

19. In a sewing machine, a cloth plate-suitable stitch forming mechanism including a device for carrying a thread from below up through and above the cloth plate of the machine, said cloth plate being,Jr provided with a thread defiecting and retaining recess solovcated with respectto thepath of` movement of the thread carrying device asto catch and, hold the thread when carriedup tl1ereby,snbstantially as described.

In testimony whereof I afx my signature in i presence of two witnesses..

HENRY I-I. FEFEL.

Witnesses:

ALFRED FLoCK, WM. H. BOYER.

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