US397579A - Island - Google Patents

Description

i 4 shets sheet 1- J.. BARTLETT 8v G. B. WIGGIN. l

SEWING MACHINE (No Model.)

m1391579. PatentedVP-erb. 12, 18a-9.

3513 bep/U @t (No Model.)

SEWING MACHINE.

Patented Feb. l2, 1889.

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J. BARTLETT'S: G. B. WIGGIN.

VSEWING MACHINE.

N0. 397,579. Patented Feb. 12, 1889.

M ayffm (No Model.) 4 Sheets-Sheet 4. J. BARTLETT 8v G. B. WIGGIN.

SEWING MACHINE. No. 397,579. Patente-d Feb. 12, 1889.

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JONATHAN BARTLETT, OF EPPING, A ND GEORGE BSIVIGGIN, OF SOUTH NEIV MARKET, NEI/V HAMPSHIRE, ASSIGN ORS OE ONE-HALF TO JOHN IV. HOARD, OF PROVIDENCE, RHODE ISLAND.

SEWING-MACHINE.

SPECIFCATCN forming part of Letters Patent No. 397,579, dated February 12, 1889.

Application iled July 28, 1887. Serial No. 245,561. (No model.)

.To @ZZ whom, t 71mg/ concern:

Be it known that we, JONATHAN Bairrtn'r'r` and GEORGE B. lVIGGIN, ot Epping and South New Market, respectively, in the county of Rockingham and Sta-te of New' Hampshire, have invented certain new and useful Improvements in Sewing-Machines; and we do hereby declare ,that the following is a full, clear, and exact description ot the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which Vform a part ot this speciiication.

Our invention relates to sewing-maifhines generally, but more particularly to the class ot' waxed-thread machines adapted for sewing slices or other articles made from leather or other kindred material, and has special ret erence to the means for feeding the material by the agency of the needle.

In the accompanying drawings, Figure l is a front elevation of a machine embodying our invention. Fig. 2 is an elevation with the covers of the two cam-boxes and their attachments removed. Fig. 3 is a-side elevation.A Fig. 4 is a vertical section from front to rear. Fig. 5 illustrates two plan views showing ditferent positions ot the curved hook `or whirl; Fig. (l, a detail of the horn; 7, a view of the under side of the machine. Figs. 8 and 9 illustrate details of ditl'erent positions of the needle and in relation to the cast-oft. Fig. l0 is a detail view of the lever for operating the presser-foot and its connections.

Similar letters represent like parts in all the tigures.

A is the base ot the machine, and l B are the two vertical standards lFor supporting the mechanism.

O is the drivingsln-tl't, which passes through the standards I3 having the driving-\\'heel D at one end and the camv E at the other. Secured to the drivingshaft O between the standard I3 and wheel D .is a gear, F. A small gear or pinion, Gv, is journaled on the standard B under the gear F and engages with said gear, while a third gear, H, enga-ges with the gear G, and is secured und fr said gear upon a shaft, I, which passes through the standards B B. To the opposite end ot' said shaft from the gear H is a cam, J, for a purpose hereinafter to be described.

Keyed to the shaft O between the standards B and B is another cam, K, also for a purpose hereinafter to be described.

L is an oscillating frame or standard, which is pivoted to the top of the standard B and rests against the same. This traine L has a box or casing, M, in which the cam E and other parts of the machine are adapted to work; and N is an opening in the frame L, in which revolves the cam J.

The cover O ot' the casing lll is adapted to be screwed or otherwise secured to the same, and it supports the needle-bar I and .adjacent mechanism. The needle-bar P is adapted to be held and to slide through holes in the brackets A A?, which form a part of the cover O.

C is a longitudinal vertical slot extending through the cover O, and in which the bar D adapted to slide.

Secured near the lower end of the slide D is a sleeve, a, which extends outward from the slide, and through which the needle-bar passes and is secured by a thumb-screw, c. N ear the lower end of the slide D', and err tending inwardly from the same, is a block or projection, b, and attached to said slide,

'near its upper end, is another block or proj eccam E is curved on one side, E', and .straight on the other side, E2, so that when the cam revolves in one direction the curved surface will ride over and operate the blocks b b', while any turning to the opposite direction will bring the shoulder which is formed by the straight side D'2 in contact with the blocks and prevent any further turning in that direction. The block h is adjustable, so as to regulate the length of the loop of the thread. lV hen it is near to the block b, it will be operated upon by the cam E for a longer period than if it were far a-way t'rom the block by, and the needle-bar and needle, and eonscqiientl y the loop e', would be raised higher and the loop z lengt-hened.

Q is a sleeve, which is adjnstably attached to the needle-bar l 1 )etween the upper b racket, A2, and the sleeve u. The needle-bar P has a longitudinal groove, or slot, (72, in its side, in which the cast-ottl bar c rests, and which allows the needle-bar and said cast-olif bar to slide longitudinally relatively to each other. The groove extends down said bar to within a short distance of the lower end, and at the metal piece i. Ahorizontal projection or base,

point at which said groove terminates the rod is cut away for a short distance, so as to form a shoulder, e', against which a projection or a shoulder near the lower end of the cast-oit' bar is adapted to strike. The needle p and cast-off e2 are attached to the needle-bar and east-oft bar, respectively. Secured tothe npper end of the cast-ott' b ar is a small sleeve, es, which projects out beyond the slot d?.

f/ is a small rod, which is parallel with the needle-bar, and which passes through said sleeve e, the sleeve Q, the bracket A2, and a tension-bracket, A.

7L 7L 7L,2 are three sleeves adj ustabl y attached to the rod g, the sleeve 7L being attached to the lower end of said rod below the sleeve e3, 7L and h2 being attached to said rod-one on each side of the sleeve Q-at a sufficient distance to allow a small play of the sleeve Q between the sleeves 7l and 7L?. A coil-spring, 71'1, encircles the rod between the sleeve ci" and the sleeve 7i', so as to keep the sleeves ci; and hin contact, and consequently to keep the rod q tirml y in place.

R R are brackets extending out beyond the front of the machine, and tln'tuigh 'vertical holes in the ends oi these braclv'eisthe presserit'oot barS adapted to slide. The pressert'oot S is attached to the presser-foot bar in any appropriate way. A eoil-sjning, S2, encircles the bar S and between the bracket R and an adjustable sleeve, Si, on said bar. The function ol" this spring is to press the presserfoot down upon the horn, upon which the goods are placed.

Pivoted to the bracket R is a lever, T, one end of which has a concave recess upon its upper side, which is adapted to press against the under side of a roller, t, j ournaled to the bar S above the bracket- R. To the other end of the lever T is loosely pivoted a vertical rod, t.

U is a lever which is pivoted to the standard B on the other side of the shaft C from the rod t', and this lever has a hole through which the lower end of the rod if passes and which is large enough -to allow of a free movement of the rod in said hole. The lower end of the rod t is screw-threaded and has a nut below the lever U to keep the rod and leverl together and to adjust them relatively to each other. The lever U passes under the cam K and is adapted to beheld against the said cam by the nut on the en d of the rod t. A handle, 11, is attached to the tree end of the lever U to allow the presser-toot to be raised by hand.

The opening N in frame L is substantially square, and in one side of this opening is a three-sided rcctangular-shaped piece of metal, t', with its longitudinal side parallel with the vertical sides of the box. The cam or eccentric J is adapted to oseillate the vtraine L by striking against the metal piece 'i and the opposite side ot the opening alternately. The len gth of the oscillation of this f. rame L is regulated by a thumb screw, 7, which passes through the standard and bears against the V, extends from the lower end of the frame L, in it'rontof the saine and swings with it. This frame supports the thread-loop and the looper mechanism. This projection or base V constitutes, as will be seen, a portion of the horizontal part or bed or table oit the machine, the remaining portion of the bed being tixed.

Y is a long lever pivoted at 7.alo the bottom of the base V, and having` a segmental rack, 7e', at its Yforward end. Near that end ot the lever V', which is opposite the rack 7; and extending toward the center ot the lever, is a longitudinal slot, 7s?. A pin, 7, passes through said slot and through a slot, i', in the base A, said slot extending in a line vfrom the frontto the back of the machine. A collar, 72, on the pin l rests against the under side of the base A, and a nut, in, passing over the upper screwthread portion, ym, ol' the pin 7, serves t0 adjust said piu anywhere along` the slot 7. A pinion, n, engages with the rack 7.1, and another pinion, h, enga is with the pinion n. lloth ol? these pinions z i le journaled upon the base V, and the journal et' the pinion In consists of a rod, n?, which extends np through the base V and through a tube or sleeve, n3, attached to said base. In the upper end of the pivotal rod n2 is removably attached, in any approjnriate manner, a curved threadcarrier or whirl, yr, having an eye, e', nearits tree end or outer extremity. The adjusting mechanism 7, 7', 72, lnl, and nl ol' the lever Y serves to regiiilate the extent of the oscillation of the hook or whirl r, and thus regulatel the length ot" stitch. lt also assists in regula-ting the distance ot' oscillation et the frame L. 4

lV is the horn or support on which the goods are to be placed, and it is attached to the base A by screws or otherwise. It has a small horizontal portion, r2, on its top, on which the goods and the presser-foot S are adapted to rest, and a small part oit' this top of and front ol' the horn are cut away at u, so as toallow room Afor the needle 2) and cast-off ez'to descend and for the loop of the thread. The front wall, w, is also slightly IOO IIO

ITS

swelled out, as at 1r', to allow enough space t'or the oscillation ot' the hook if. The side wall a; of the horn has a hole, fc', in which the thread is adapted to pass before it enters the eye ofthe hook fir.

The operation ot the Amachine is as follows: '.lhe thread i: having been passed through the hole af', around the vertical part of the hook i from back to front, and through the hole t in the end ot the hook, is then passed over to the front of the horn XV, resting against the top of the cut-away portion il?. The pressert'oot S- is then raised by the handle ot the lever U, and the material to be sewed is placed between the presser-foot and the horn XV, when the former is allowed to drop upon the material and hold it in place. The position of the parts will then be as shown in Fig. l. The crank or driving wheel D is then turned from left to right when facing the front of the machine. The revolution of the shaft C by its wheel D will revolve the cam E, an d this will press against the block Z9 and drive t-he needle-bar P down so that the hook of the needle p will pass into the horn lV and below the line of the thread. The descent ot' the needle-bar will also cause the east-oit e2 to descend, by reason of the sleeve Q pressing against the sleeve or stop 71. A little farther revolution otf the shaft C will cause the cam K to operate the lever U, and thus raise the presser-foot S', so as to allow the :material or work to be fed onward. The revolution of the shaft C will also cause the sha tt l to revolve through the instrumentality of the gears li (t ll, and just after the cam K has begun to operate the lever U to raise the presser-toot the cam .T will come in contact with the lrec[angular piece and cause the trame L to oseillate to the left. The needlebar l, being hung on this standard, will also be carried to the lett, and the needle, being through the material, will carry the same with it to the end of the stroke. The oscillation ot the trame L to the lett willcause the front end ot' the lever Y and its rack la to move in the same direction, and will cause the pinion n', its shatt if, and hook c to move in-the direction of the arrows in Fig. The thread at the end ol' the oscillation to the lett will be t-aut from the vertical part ot the hook /U to its eye t" and be pressed against t-he hook ot the needle p. A further revoli'ition of the shaft will release the cam K from the lever U, so the presser- ['oot will descend, the cam E will strike against the upper l iloek, b', and thus raise the needlebar l and needle p, which will carry the loop of the thread with it, as shown in Fig. S. As the' needle-bar ascends, it will slide on t-he cast-ott bar e until the sleeve Q strikes against the stop lz?, when the cast-ott e2 will close the hook of the needle and retain the thread on the same, as shown in Fig. 9, and theneedle p and cast-oit will rise together. A little further revolution of the shaft C will cause the cam J to strike against the right-hand side of the box N, and thus cause the frame L to oscillate to the right. The hook or whirl i will then turn in the opposite direction from that in which it turned before and carry the thread back llor the next stitch. The cam E will then strike against the block l) and force the needle down belowthe cast-off e2, and so relieve the loop .e ot" the thread. The operation is then repeated.

The distance of the oscillation ofthe frame L determines the length of the feed of the material to be sewed and also of the stitch. The distance is regulated by the lever V and screw-pin Z, before named, By adjusting the pin Z in the slide 71:2 nearer to the fulerum l; a longer feed and stitch are obtained.

Our machine can be used for sewing almost any material; but it is more particularly adapted for sewing shoes, either turned or welted, the narrow edge afforded by the horizontal Vtop e2 of the horn lV beingparticularly adapted for welted goods.

This application having been divided into four applications, we do not herein claim anything claimed in either of the other three of the division applications numbered, respectively, 972,745, 272,7l6, and 272,7-t7, all iiled May El, 1889.

lVe claiml. The vibratory frame L, pivoted at its upper end, and the projecting base V, which supports the thread-looping mechanism carried by and vibrating with said frame, combined with the needle-bar arranged to move in right lines vertically lengthwise of such frame and also to vibrate with it and said base, substantially as shown and described.

i. In combination, the vibratory frame L,V

pivoted at its top and having a projecting' base, V, as described, the looping mechanism supported on suoli vibrating bed or base, cover O, brackets A A' on said cover, needlebar P, needle, and a cani for vibrating the frame L, substantially as shown and described.

3. In combination, the vibratory trame L, having a casing, M, and opening N, shafts (l and I and their respective cams or eccentrics, removable cover O, needle-bar P, supported on frame L, brackets A A2, and blocks b b', substantially as shown and described.

4. In combination, the vibratory frame L, having a casing, M, and opening` I, and cam E, the cam or eccentric J, adjustable threesided piece 1I, and its adj listing-screw Z', substantially as shown and described.

In testimony whereof we affix our signatures in the presence of two witnesses.

JONATHAN BARTLETT. GEORGE B. WIGGIN. Witnesses:

CHARLES E. lATWooD, WILLIAM B. MORRILL.

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