US420333A - Sewing-machine - Google Patents

Description

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D, HK GOLES.' SEWING 'MAC/EINE.

No. 420,333.l Patented Jan. 28, 18903.

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SEWING MACHINE.

No.v 420.333. Pate ed Jan. 28, 1.89

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D. H'. GOLES. SEWING MACHINE.

Patented Jarzl. 28, 1890..

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Patented Jan. 2'8, 1890.

D. H GOLES. SEWING MAGHINB.

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D. H. GOLES.

SEWING MACHINE.

No. 420,333. Patented Jian. 28,1890.

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SEWING MACHINE.

Patented Ja11.28, 1890.v

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UNITED STATES PATENT OFFICE.

DAVID H. GOLES, OF BROOKLYN, NET YORK.

SEWING-MACHINE.

SPECIFICA'IIION forming part of Letters Patent No. 420,333, dated January 28, 1890.

Application filed September 26, 1889. Serial No. 325,227. (No model.)

To a/ZZ whom it may concern:

Beit known that I, DAVID H. GOLES, a citi zen of the United States, residing at Brooklyn,i11 the county of Kings and State of New York, have invented new and useful Improvements in Sewing-Machines, of which the following is a specication.

'This invention relates to a sewing-machine which is capable of forming miter-shaped seams, as illustrated in Figure 9 of the drawings.

The peculiar and novel construction of my sewing-machine is pointed out in the following speciiication and claims, and illustrated in the accompanying drawings, in which;

Fig. l represents a front view of the machine. Fig. 2 is a side view of one of the shuttle-carriages detached. Fig. 3 is a side view of the entire machine. Fig. 4 is a plan or top view of the same. Fig. 5 is a horizontal section in the plane :c Figs. l and 3. Fig. 6 is a plan of the work-plate and of some parts below the same. Fig. 7 is a longitudinal vertical section in the plane y y, Figs. 1, 4, and 5. Fig. 8 is a front view of one of the needle-arms detached. Fig. 9 is a diagram illustrating the lines of stitches produced by my machine.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the work-plate, which is connected by standards 'B B, Figs. 5 and 7, with the base-plate O. On

the work-plate is rmly secured the gooseneck D and the standard E, from which extends the platform F, and on which is firmly secured the bent arm G.

H is a vertical arbor, which has its bearing below in the platform F and above in the outer end of the arm G, and on this arbor is mounted 'the toothed segment I. This segment has two arms I* I0 and it meshes into a cog-wheel J, which is mounted on a vertical arbor K. This arbor has its bearing above in the platform F and below in the base-plate O, and on the same, near its bottom end, is u iirmly mounted a cog-wheel L, which engages a cani M, mounted on a horizontal arbor N.

'This cam is so formed that it turns the cogwheel L for one tooth during about one-iifth of each revolution of the arbor N, while dur-V ing the remaining four-fifths the cog-wheel L remains stationary, and consequently by the action of the cam M a step-by-step movement is imparted to the segment I. On the lower portion of the arbor K is mounted a cog-wheel J 2, which engages a toothed segment I2, which turns on a vertical arbor H2, mounted in the base-plate C and provided with two arms I2* 120. (Best seen in Figs. 3 and This arbor is directlybeneath and in line with the arbor H of the segment I, and the segment I2 is intended to control the positions of the various shuttle-carriages, while the segment I controls the position of the needle-carriages, as will be hereinafter more fully explained.

On the under side of the platform F are firmly secured a series of brackets O O O2 O3, which carry the needle-carriagesl P P P2 P3. By referring to Figs. l and 8 it will be seen that the brackets O O O2 are securedto the under .surface of the platform, while the bracket O3 is secured to a hanger F", which extends from the under surface of the platform F. The needle-carriage P is rmly secured to the bracket O, and it contains the needle-slide Q and the presser-bar R, and motion is imparted to the needle-slide by means of a shaft S. (Best seen in Figs. 3 and 4.)

The needle-carriages P P2 P3 are tted into guideways o o2 03, formed in the brackets O O2 O3 and they carry the needle-slides Q Q2 Q3, and the presser-bars R R2 R2, motion being imparted to these needle-slides by means of shafts S S2 S3. From the needle-carriages P P2 P3 extend rods p p2 p3, which engage a slot t' in the arm I0 of the segment I, (best seen in Fig 4,) so that when this segment is turned on its arbor H the needle-carriages P P2 P3 are moved in the guideways of the brackets O O2 O3. In order to permit the needlecarriages to follow the action of the segmeutl, the shafts S S2.S` must be mounted so that they can follow the motion of the needle-carriages. To effect this purpose said shafts have their bearings at one end in a bushing S4, Fig. 7, which turns loosely in the goose-neck D and is geared together with the driving-shaft Z, and each shaft is provided with a feather-key s4, which engages a groove loo l in the bushing, so that it can slide in the diy rection of its length without getting out of engagement with the bushing.

T T T2 'l2 are four shuttle-carriages, which rest upon the base-plate C. The carriage T is stationary and firmly secured to the baseplate; but the carriages T T2 T3 are mounted on wheels, Figs. 1, 2, and 3, which run in 5 tracks t t2 t3, formed on or secured to the baseplate. (Best seen in Fig. 5.) From each of the carriages rises a stud a a2 a3, respect' ively, (roller-studs being shown in the draw# ings, Figs. 5 and 7,) which engage a slot 't2 in the arm 120 of the toothed segment 12, and when this segment is moved by the action of the cam M the shuttle-carriages T T2 T3 are caused to move in their respective tracks, so that the shuttles carried Vby the same 'preserve their proper relations to the needles carried by the needle-carriages P P2 P3. The shuttles U are carried bycradles V, Fig. 2, to which an oscillating motion is imparted by an eccentric or any other means usually employed for this purpose. The shafts WV IV 72 W3, which serve to impart motion to the shuttlelevers, have their bearings in a hanger X, which is secured to the under surface of the cloth-plate, and in order to permit shafts IV W2 IV3 of the movable shuttle-carriages to accommodate themselves to the movements of their respective carriages each of them is made to extend loosely through a bushing WV, with which it is kept in engagement by a feather-key 104, said bushing being geared together with the driving-shaft Z.

The material to be sewed is fed through the machine in the direction of arrow 2, Figs. 3

and 7, by two rollers a h. The lower roller a is mounted on a shaft a', which isv journaled m hangers a2, secured to the under side of -the work-plate A, and it receives an intermittent rotary movement by anysuitable means, such as a friction-clutch, as shown in Fig. 5. On the shaft a is mounted a cog-wheel c, which gears into a cog-wheel d4, mounted on the shaft b of the upper roller b. This shaft has its bearings in arms d d, which are firmly secured on a rock-shaft cZ, that has its bearings in lugs e e, extending from the inner side of the goose-neck D, Fig. 4. On this rock-shaft is firmly mounted a hand-lever e', by Vmeans of which the upper roller b can be raised or depressed.

In the example shown in the drawings the cog-wheel L is mounted loosely on the shaft K and connected to the same by a ratchetwheel and pawl, so that the segment I I2 can said shaft. The manner in which the various shafts are geared together with the driving-shaft can be readily understood from the drawings and requires no further explanation.

c In order to sew the miter-seams indicated in Fig. 9, the segments I and I2 are brought into the position occupied by the segment I in said figure, and thereby the needles are brought into the position indicated by the lletters n fn. n2 ng. As the work is fed in the direction of arrow 2 and the segments are? only'be turned in one direction by means ofV arrow l the needles are successively brought in the positions indicated in Fig. 9, andby the time the segment reaches the position shown in dotted lines in said figure the needles occupy the position indicated by the letters no n10 02,20 n30, and four parallel seams of unequal length have been finished. If it is now desired to produce the same number of seams on another side of the work, the work is turned in the proper position, the segments are turned back to the position shown in full lines in Fig. 9, and the operation above described is repeated. If this second side of the work is shorter than the iirst,-the feed motion has to be reduced to correspond.

It will be Seen from this description that the needle-carriage P and the shuttle-carriage T are fixed or stationary, andconsequently the needle mounted in the carriage P and the shuttle mounted in the carriage T receive a concerted movement in fixed paths, while the paths in which the remaining needles and shuttles travel are changed by each rotation of the cam M.

By referring to Fig. 6 it will be seen that the work-plate A is provided with four oblong slots, which are covered by the slides fm, 'm' m2 m3, and each of the shuttle-carriages is provided with a plate k, Fig. 2, which extends into one of these slots and has a semicircular groove Z, which forms the guide for the descending needle. The movable shuttle-carriages T T2 T8 are provided with T-shaped heads h h2 h2, Fig. l, which engage guides g g2 g3 and serve to keep the carriages steady.

If desired, the step-by-step movement of t-he segments may be stopped at any time by throwing the pawl which holds the cog-wheel L in gear with the shaft K out of gear with its ratchet-wheel, and then the sewing can be continued, While all the needle-carriages and the shuttle-carriages remain stationary.

From the foregoing description it will be seen that the feed movement imparted to the IOO IIO

work is in the direction of arrow 2, Fig. 9,

while the carriages P P2 P8 T T2 T3 receive a step-by-step movement in the opposite direction, and while the length of the stitches produced by the needle n in the stationary carriage P depends solely upon the length of the |feed motion, the lengths of the stitches produced by the needles n a2 n3 are equal to the length of the feed motion plus the move* ments of the carriages P P2 P3, respectively, and a series of parallel seams of different length are produced and miter-shaped borders can be sewed.

What I claim as new, and desire vto secure by Letters Patent, is-- l. In a sewing-machine, the combination,

with the work-plate A and the feed mechan= ism, of the fixed needle-carriage P and the movable needle-'carriage P above the works plate, the iixed shuttle-carriage T and the movable shuttle carriage T beneath the work-plate, and mechanism for imparting to the carriages P T a .concerted stepabystep 420,333 t s A movement in the direction opposite to the feed motiom-substantially as described.

2. In a sewing-machine, the combination, with the Work-plate and the feed mechanism,

of two movable needle-carriages P P2 above ments of the carriages P T', substantially as` described. Y

3. In a sewing-machine, the combination, with the Work-plateAand thefeed mechanism, of two needle-carriages P' P2, fitted into guide- Ways 0' 02 above the Work-plate, two shuttlecarriages T' T2, constructed to move on tracks t' t2 beneath the Work-plate, the oscillating arm I0, engaging both needle-carriages P P2, the oscillating arm 120, engaging both shuttlecarriages T T2, and means, substantially as described, for imparting to the arms I0 120 concerted movements.

4. In a sewing-machine, the combination,l with the Work-plate A and the feed mechanism, of the platform AF above the Work-plate, the needle-carriage P, rmly secured to this platform, the bracket O', fixed to the platform, the guideways o', formed in this bracket, the needle-carriage P', fitted into the guide- Ways o', the base-plate C beneath the Workplate, the shuttle-carriage T, firmly secured to this work-plate, the track t on the baseplate, the shuttle-carriage T', movably tted on this track, the toothed segment I, engaging the needle-carriage F', the toothed segment I2, engaging the shuttle-carriage T', and the cam M, for imparting to said segments a stepeby-step movement, substantially as described.

5. In a sewing-machine, the combination, with the work-plate A and the feed mechanism, of the platform F above the Work-plate, the guideways 0 o2, iirmly connected to this Work-plate, the needle-carriages P' P2, tting these guideways, the base-plate C beneath the Work-plate, the tracks t' t2 on this baseplate, the shuttle-carriages T T2, movably fitted on these tracks, the toothed segment I, engaging the needle-carriages P' P2, the toothed segment 12, engaging the shuttle-carriages T' T2, and the cam M, for imparting to said segments a stepbystep movement., substantially as described.

In testimony whereof I have hereunto set myhand in the presence of two subscribing` witnesses.

' DAVID I-I. GOLES. Witnesses:

W. HAUFF, I J. VAN SANTVOORD.

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