US104590A - Improvement in sewing-machine - Google Patents

Description

H. P. HENRIKSEN. SEWING MAGHINE'.

No. 104,590. X i Patenteuunqzl, 1870;

atwt. Gtiijfmz;

HANS PETER HENRIKsEN, or coPENHAGEN, DENMARK GHARLES EDWARD BROSSER, OF PARIS, FRANCE.

Lcttcrs Patent No. 104,590 dctol Jime 21, 1870.

IMPROVEMENT IN SEWING--MACHIKH The Schedizle referre to in these Lettere Patent and'making'part of the same To all whom it may concern:

Bc it known that I, HANS PETER HENRIKSEN', of Copenhagen, in the Kingdom of Denmarlf, have invented certain Improvemeuts in -Sewing-h/Iachin'es, of which lthe following is a speciiication. I

i Nature (md Object of the Invention.

, My invcntion consists of certain devices, operating with a'heri'zontal reciprocatingvneedle, and with shuttle reclprocating in an arc on avertical plane, to cal-ry the sh'uttle-thread over the edge of the fabric and across the path of the needle, so as to produce a series of binding stitches' over the edge of the picces of fabric, or othermaterial operated. on. 'I

Description of the ccompmiying Di'moing.

Figure 1 isa side elevatlion of p Figure 2, a plan view; i' Figure 3, an end view looking Vfrom the front; Figures 4, 5, 6,' and 7, views illustratng the formation of the stitch; and i Figures 8 and 9,- detached views of parts of the machine.

the machine General. Description.

The frame of the machine consists of a. cast-iron base, z, tovwhich is holted a Vertical shallow case, W', the front plate, d, of the latter being detachable.

In suitable bearings turns the driving-shait V, which cxtends through the case NV, and has, on its rear end, a crank-wheel, V', and at the' front end a' cam-Wheel,

, D, and at the side of the Wheel V' is a band-pulley,

V", from which a band passes to a fly-wheel, V'".

In guides, at the rear side'ofsthecase NV, slides a plate, U, having, :at the front'end, an arm, o, to which is securecba horizontal needle, f, and, at the rear, a slot, thrrmigh which extends the crauked portion of the driving-shaft V. p v Within the case is'hung a segmental,Shuttle-carrier, T, in a suitable receptacle in which rests a shuttl'e, S, caxrying a bobbin, g, and bearing against the plate d, a portion, d', of which can he detached or displaced, to permitthe introduction and. withdrawal'of the shuttle.

In a projection, a, ori the face-plate d, slides a rod, A, of the form shown in the drawing, the rear end of the rod embracing the edges of the cam D, which imparts to the rod the movements described hereaftcr, and the front end of the rod having a Ing or projection at one-side, in which are -recesses or deprossions o' a om, as shown in fig. l8.

.The rod A is jointed, near its front end, to one arm of a lever,`E, Vibratingon apin projecting from the face-plate d, and in a slot in the plate below this lever slides a pin, b, which is connected to 1 an arm jointed to the cranked portion offhe shaft V, the op-v posite end of the pin extcnding iu'a slot formed in an arm projecting from the shnttle-canflier T, so that, as the shaft V revolves and 'the pin b slides back and forth, a reciprocating motion ina Vertical plane will thus be imparted to the shuttle-carrier.

In the'edge of thc plate ll and`of .the case W, is an Opening; for the passage of the needlc, into which Opening the end of the arm A, during part'of the Operation of the machinc,'is inserted, as 'described hereafter.

The fabric is held in a Vertical position (s0`as to be perforated by't-he needle) between two clamps, G G', connected to each other by a' pin, H, and Vpressed together` at the lower eudsby a spring, o, the said clamps sliding laterally iii-spitable guides at the vedge of the'caseW. 4 v

- The required reciprocating sliding motion .Vis imparted to the cla'm'ps-by an L-shaped lever, P,`one arm, 71, of which enters a slot in the rear clamp G, while the other ocoupies'a position adjacent to the plate U, through lugs on which extend.set-screws,-i i, 'the position of the latterregulating the extent ot' the'movem'ent of the lever and of the clamp. v

The Opening 'and closing of the jaws are eifected by a cam, N, on the driving-shaft, which bears on an arm, O, connected to the outer clamp.

` To the case W is connecqed a plate, L, from which,L

. at right'angles, project twofarms, m n, occupying positions on opposite' 'sidesof a-central opening, s, for the passage of theneedle the arm m being'bent downward and laterally, and the arm n being bent lat- 'erally, as showuin figr9. f*

To anarm,J, projecting from the case W is hunga thread-controlling lever, w'h'ich .is forkcd, oneV arm, t,I having au Opening, ro, for the passage of thread, and the other arm, tj, beingcaused, by a spring, u, to bear `against apin, o', on the plate U.

To a lever, I, is also secured a spring,-t",. v

The needle-thrcad X passes through a tension de- ,vice, Q, and through 'an eye, "iu, to the eye o of the ,tln'ead-controller,.and thenee; to the needlc.

Operation.

Although this machine can he employed for sewing various articles, it is especially adapted and designed for use in the manufiicture of -kid or leather gloves, `in which it is essential that the stitch shall pass over the edge of. the material and be uniform, regular, strong, and elastic.

The. parts of the machine are brought to the `position9 shown in the dottedflincs, fig. 1, the pieccs of material to be secured together are placcd between the `'clamps, the edges of fthc material bearing against the under sidesof the ho'rizontal parts of the arms A motion, in the direction of its arrow, is impartcd ASSIGNOR Tsfi to the driving-shaft, when the needle f will penetrate the material near its edge, and, after reaehing the limit of its inward motion, will begin to reeede, forming a loop through which the shuttle S passes, carrying with it the shuttle-thread Y, which, as the needle iswithdrawn, is thus looked to the underside of the material by the needle-thread, as shown in fig. 7.

As the shuttle begins to descend the'head B of the arm A entcrs the reeess, laterall'y, and bencath the Shuttle-thread, and then advances, both forward and downward, until it strikes the arm m, when rit will hold the loop of thread Y in` such a position that the needle f penetrates the same as it again passes into the fabric, the arm A, as soon as the thread is eaught, resuming its original position. The shuttle again passes through the needle-thread, and the needle is then withdrawn, locking the thread Y to the r outer side of the material, as shown in fig. G.

The arms m n serve as loop-guards, to prevent the threads from twisting, knotting, or becomingentangled, a matter` of considerable importance Vin the manufacture of such articles as gloves, where every stitch is expose'd, and where a defective stitch will injure the article. The said arms also prevent the fingers and other parts of the glove, as the latter is' operated on, from coming in the path of and being canght by the needle, while they also guide the material After the needle has passed into and been withdrawn from the material, the clamps G G'are movcd, laterally, the length of one Stitch, when the' needle again penetrates the material, and holds it while the outer clamp is raised, and both slide back to their first position and grasp the material preparatory to another moxjement of a like character.

' By adjusting the screws i i the length of the stitch may he regulated at pleasnre. The thread-cohtrolling lever I releases'the threadto permit the formation of the loop, and takes it up, after the loop is made, drawin'g the stitch close to the fabric, and holding the thread so that it cannot be ca'ught or entangled.

C'latms.

1. The arm A, constructed as describcd, in combination with the lexjcr E, cam D, sliding pin b, and guide a, as set forth. v

2.' The combination of the needle, Shuttle, and arm, operating as above dcseribed, and elamps G G', which clasp the fabrie and carry it, laterally, while the needle is at the limit of its outward motion, and after the needle has penetrated the fabric, release the same and move back to their first position.

3. The arm U, its needle f, and pin v,'in combinationw'ith the lever I, its arms t t', andsprings u.t, arranged as described. v

4. The plate L, its arms m n, and recess s, arranged on the case W, and operating with the arm A and needle f, as described.

5. Thecombination of the clainps G G',v sliding.

plate U, set-serews i i, and lever P, as specified.

6. The :combination of the subject matter of the fifth claim, with the arm O, and cam N, as set forth.

7. The arrangement and combination'of the frame W, shut-tle-earrier T, and its shuttle S, sliding arm U, needle f, sliding-elamps G G', and arm A,-all substantially as described. I

In testimony whereof I have hereunto set my hand before' two subscribing witnesses.

HANS PETER HENRIKSEN.

Witnesses: F. E. BoGGILo,

Translatcur. O. N. SCHMIDT,

Bag/binder.

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