USRE10600E - Signor - Google Patents

Description

' v I 2ShsetsSheet 1. M. P. G. HOOPER, ne M. P. CARPENTER.

Assignor, by mfsne assignments, to THE CARPENTER STRAW SEWING MAcnmE COMPANY. MACHINE FOR SEWING STRAW BRAID.

No. 10,600. Reis u ay 26, 1885.

Hllllll' 2 SheetsShe,et 2.

M. P; O. HOOPER, 1160 M, P. CARPENTER.

Assignor, by mesne assignments, to THE CARPENTER STRAW SEWING MACHINE COMPANY. MACHINE FOR SEWING STRAW BRAID.

No. 10,000. v Reissued May 20 1885.

I w mw w I UN TED STATES PATENT OFFICE,

MARY P. U. HOOPEB, NEE MARY P. CARPENTER, OF NEYV YORK, N. Y., AS-

' SIGNOR, BYMESNE ASSIGNMENTS, TO THE CARPENTER STEAW' SEVING MACHINE COMPANY.

MACHINE FOR SEWING STRAW BRAID.

I SPECIFICATION forming part of Reissued Letters Patent No. 10,600, dated May 26, 1885,

Original No. 171,774, dated January 4, 18%6. Application for reissue filed January 30, 1885.

To all whom it may concern.-

Be it known that I, MARY P. G. Hoornn, born Mary P. Carpenter, of the city, county, and State of New York, have invented certain new and useful Improvements in Machines for Sewing Straw Braid; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawro ings, which form part of this specification.

This invention more especially relates to that class of sewing-machines for sewing straw braid in which an eye-pointed needle of curvi linear or circular form and having a curvilinr 5 earlyrcciprocating motion is userhsaid needle operating in connection with other devices, including a hook for catching the loop, to produce a single-thread chain-stitch.

The invention consists in the combination,

20 with an eye-pointed circular-needle and a work-feeder, of the loop catching and spreading hook and operating mechanism, as described, whereby the distinct motions are imparted to said hooknamely, an oscillating motion on its own axis, a vibratory motion in a transverse relation with the feed, and a reciprocating motion in direction of the feed.

The invention further consists in an oscillating feeder, which is combined with an. 0s- 0 cillating needle having its shank or carrier arranged to pass through the feeder and to work or oscillate between the center of motion of the feeder and its feeding-surface.

The invention further consists in a work- 5 table and presser-foot supporter or carrier, combined with the main frame, carrying a feeder and sewing mechanism, said supporter or carrier being hung at its rear end to the rear portion of the main frame, whereby the 40 'work supporting and holding devices and the work itself may together be thrown up or back without interfering with or disturbing the sewing and feeding devices.

Theinventionfnrther consists in the combination of a shaft or carrier'carrying an oscillating piercing-need1e,and constructed with a screw, with a cam and shaft arranged parallel with the said shaft or carrier, and a le- "vcr Working as a-nut on said screw, whereby Fig. 5 is a vertical section, in part, in transtive positions.

er-foot carrier D to its place, subject to ad- I ju'stment by a screw, f, in anup or down clithe proper oscillating motion is given to said needle.-

The invention further consists in the combination of a presser-foot, alever carrying the resser-foot, a roller-guide, and a lip.

Figure 1 represents an invertedplan of a sewing machine constructed in accordance with the invention; Fig. 2, a side view of the same, Figs. 8 and 4, front elevations thereof,

with the parts in different working positions.

verse relation 'with the feed, and Fig. 6 a partial front view of like devices in like rela- Figs. 7, 8, 9, and 10 are front views and plans, respectively, upon a larger scale, of the needle and hook in different positions in relation to each other; Fig. 11, a further front view of like devices in a still different position, and Figs, 12 and 13 plan views or diagrams of the needle and hook-in different positions. Fig. la is an under view of the forward portion of the prcsser-foot.

A is the base portion or main frame of the machine, andB the revolving main or driving shaft, receivingifs motion from apuliey, O, or otherwise.

D is the Work-table and presser-foot carrier or supporter, which is hinged at its back b to the main frame, and passes over the top of the latter and down in front of it, forming a work-table, D, over'and across which, in the direction indicated by the arrow :0 in Figs. 4 and 6, the braid or strips of braid c c, lapping one over the other, are fed, said table being provided with any suitable adjustable'back guide for'the back or inner strip of braid, 0, while the other or front strip travels in front of and is guided by a free wheel or roller, E. About these guiding devices, however, nothing is here claimed as new irrcspectively of the parts they are combined with. The back strip of braid is introduced under a front lip, and from thence under a presser-foot, F, to and under a rising and falling back clamp, G.

H is a swinging clamp or lever, pivoted at e, for holding down the work-table and pressrection or relatively to the feeder I and needle IO its attachments,

and which J. The front'lip, under which the braid is introduced, the guide-,wheel or roller E,fand the presser-foot F are all carried by a lever, K, pivoted at g to the work-table carrier D, which lever is held down to its place by a spring, 71, subject toa general adjustment by a screw, i, and a special adjustment of the presser-foot by a screw, 7:. t

L isa cam-lever by which the lever K with including the press'er-foot, are raised when it is desired 'to introduce or remove the goods to be stitched. and falling clamp G is formed by a lever, pivoted at l to the work-table carrier D. This clamp serves to hold in a firm or positive manner, and independently of the presses from slip-" foot, the work down to its place ping or moving backward while the curved needle J is being passed through the goods in -a reverse direction to the feed, but which clamp is released when the needle is out of the goods and the feed is being made. The clamp G is thus operated or made to rise and fall alternately by means of a spring-lifter, M, controlled by a cam, N, on the main shaft B or byany other suitable devices:

O is the needle-carrier, which is formedof an oscillating shaft arranged to extend backward parallel with the shaft'B, but above it,

projects sufficiently in front of the main frame A, by which it is carried, to pro vide for the attachment of the needle J in proper relation with" the presser-foot F and in front of the oscillating feeder I. To thus arrange the needle in relation with the oscillating feeder, which works on a center at m and is of a curved .or are shape on its feeding surface, the needlecarrier0or needle-shank, which virtually forms an extension of said 0 carrier, is arranged to work between the cening surface or portion of the latter.

.ter of oscillation m of the feeder and the feed- To this end the are shaped feeding portion of the feeder is connected, either by the center boss or portion 'of the feeder, thus tions to'the needle through a providing for the passage of the needle-carrier or needle-shank through the feeder. f The needle carrier or shaft 0 is primarily '50 operated by means of a grooved cam, P, on

g the main-shaft B,- and whichis constructed to i give the requisite intermittent oscillating molever, Q, pivote'd' at, and in rolier 'gear'wlth 'said'cam. 5 This lever Q carries ,two

pins or studs, r r, ar-- ranged to cross the shaft posite sides of its axis, and to fit or gear with a quick-screw, the lever Q, as it is moved to and fro by the cam P, to act as a sliding nut on the screw 8,

and so oscillate the needle carrier or shaft 0 as required. 4 I

The oscillating feeder I, which is a four-motion one, is operated as follows:

R is a lever, pivoted'at t to the main frame, A, and forming a bearing for the pivot m of The rising the rise and fall .of the feeder,

goods fora an arm at its one end or by arms at its opposite ends, with or carrier 0 on .opr

words, the Sewing 8, on the shaft 0, thus making lever-clamp H said supporter,

which operates in concert with a cam, S, on

the main shaft to give the alternate necessary rise and fall to the feeder I to provide for the feeder I rising and taking hold of the goods when making the feed, and of its falling and being released-from the goods at other periods. Another cam, I, on the main shaftBoperatesin. alternate relation with aspri'ng, v, on the pivot m of the feeder'to actuate a bell-crank lever, U, fast to'the' feeder I, for the purpose of -oscillating the feeder in the direction of the feed and back again in appropriate relation with asin other four-motionfeeds.

V is an adjustable stop, against which the lever U works to regulate the length of feed.

The needle J is an eye-pointed one of curvilinear or circular form, and has a curvilinearly reciprocating or oscillating motion, as described,.and works, as it passes with its thread a, during each stroke, first up 'through the goods and then down through them and back'againthat is, supposing the parts connected with the sewing mechanism to be an ranged in relation with each other as described, and whereby is formed on the upper or exposed side of the comparatively long stitch on its under side, said with the sewing mechanism, might, however, be reversed, and the fair line of stitching be on the reverse side of the goods.

The thread ais taken from a spool, A, on the main frame, and fromthence through suitable guides and one or more tension devices and take-ups to the needle, groove in the back of the latter and through the eye in the point of the curved needle. To provide for the proper passage of said needle with its thread through the portion of the goods held downby thepressei foot, the latter is constructed with a longitudinal groove, b,in the under side of its face or forward bearing portion, within which groove the needle is free to move as it is oscillated from its cen ter or pivot m. I a

B is the book which catches the loop, and in conjunctionwith the curved needle J and feeding devices does the necessary sewing. Prior to describing'the action of this hook and the means by which it is operated it will here be observed that said hr )k, together with its operating dei ices, as also the feeder and neeto eifect the feed onlya short orsrnall neat stitch parts, which are connected 7 Ioo passing within the dle and their operating devices, or, in other mechanism generally, are main frame A, while the presser-foot Fare carried all carried by the work-table D and by the hinged piece or supporter D, so that on releasing the latter by swinging back the with its attachments and-with the work or braid still in its place, may all be swung or thrown back from the hinge b as a center of motion to facilitate adjustment or repair of the sewing mechanism, or of arranging the thread in case-it should become snarled, or for'any other purpose or purposes that may be necessary.

The action of the hook B is as follows: The hook, which occupies an upright position in front of the feeder I and needle J,has its shank d arranged to oscillate in a socket, e, of a horizontal lever, having its fulcrum f on the under side of the mainframe, and which is not only free to rock on said fulcrum, but also by means of a slottedconstrnction of said lever is capable of being moved longitudinally in direction of itslength. Thus, referring more particularly to Figs. 7, 8, 9, 1O, 11, 12, and 13 of the drawings, supposing the curved needle J to have completed its forward-stroke through the goods, and to have commenced to retire or make its back-stroke, as shown'in Figs. 7" and 8 of the vdrawin'gsQIeaVing anexposed portion of the needle-threadfor the hook toitake hold of thehoolgB then, or rather shortly before the needleJ commences its Lack-stroke; moves,

together with its lever O, horizontally back-.

ward, so as to enter between the needle-thread and needle, after which the needle makes its back-stroke out of the goods, and the hook B is turned by the camE" on or by its shank d,

and is moved by the vibration of its lever O in direction of the feed to spreader turn and drawings.

adjust the loop into a suitable position for the next passage of the needle with its thread through it, as shown in Figs. 9 and 10 of the Aft-er this the hook H is turned by the'cam E on or by its shank d in a reverse direction, and moved horizontally outward bythe forward longitudinal sliding of the lever C, so as to carry it out of its loop,

and adjust the hook in relation with the needie, asrepresented in Fig. 12. t The lever G'- is .then vibrated in a reverse direct-ion to the feed, to bringthe hook into its normal position after the needle has again passed through the goods, and before the hook is slid backward to enter again between the needle-thread and needle, as represented in Fig. 13 of the draw ings. The feed of the goods of coursoiakcs place whcn'theneedle is out .of the goods and when the hook B is traveling in direction of the feed. The means for-accomplishing these several movements of the hook in relation with the needle may be varied; but the devices here shown consist of a cam, E, on the forward end of the mains haft B, operating on frame 'gether bethrmvi'i up or ing" 'with for disturbing-the sewing and feeding v scribed.

a toe, g'., as againstaspring, h, to oscillate he hook, and'an eccentric, F, andcam-groove i therein you said shaft-Bite vibrate and to give to the lever 0? its requisite longitudinal movements, the spring h serving to keep both the toe g in contact with the camE and the.le ver 0 in contact with its grooved eccentric F.

I claime 1. The combination, with the eye-pointeu circular needle J and a work-feeder, of the. loop catching and spreading hook B, and operating mechanism, as described, whereby three distinct motions are imparted to said hook -namely, an oscillating motion on its own axis, a vibratory motion in a transverse relation with the feed, anda reciprocating motion in direction of the feed substantially as specified.

2. The oscillating feeder I, in combination with the oscillating needle J',having the shank or carrier -O-, arranged to pass through the feeder, and to work or oscillate between the center of motion of the feeder and its feedingsurface,substantially as described. 7

3. Tliie work-table and presser-foot supporter (3r carrier D, in combination with themaiu A, carrying the feeder and sewing mechanism, said supporter or carrier being hung at its rearili'end to the rear portion of the main frame A ,.whereby the work supporting and holding devices, and the work itself .may. toback without interferdevices, substantially as specified.

4. The combination of the shaft or carrier 0, carrying the oscillating piercing-needle J and constructed with a serew,s, with the cam P and shaft B, ,arr anged parallel with said shaft or carrier ,0, and the lever Q,working as a not on said, screw, whereby the proper oscillating motion is given to said needle, as set forth.

5. The combination of the presser-foot F, the lever carrying the presser-foot,theroller-guide E, and the lip, substantially as de- In witness whereof I have hereto setim-y handtthis 20th day of January, A. D. 1885 MARY r. c. HOOP-EZR- Wit'nesses: v,Enw. R. Banvooar,

J. WARNER.

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