USRE2580E - Alfred b - Google Patents

Description

a. DREW. f ySewing Mchine.

Reissued April 30,1867.

.1 ...To 'whom'.t may concern:

UNITED' y Srn'rns ALFRED B. ELY, or NEWfroN,MAss.,1AssIGNEE or REUBEN W. DREWJ-A l |MPRovEMsNT m sEwlNG-MAcl-HNES.

Speciiication forming part of Letters Patent lio. 33,677, dated November h, 186i ;V reissue No. $2,580,

l dated April' 30, 1867.

Be it known that REUBEN W. DREW, of

.-fAbingtom in the State of Massachusetts, has

invented certain Improvements in Machine. fig forSewingionthe Soles of Boots and Shoes, Q which are fully described in the 'following specifications and'accon'ipanying drawings..-

f lifisa perspective view of the maf'ehi-nd* Fig. 2 is a vertical section of ya side'elf ovation.' lFig. 3 is a front viewof the lparts underneath the table. j adjustable eccentric.

" Fig. 4 is avieiv ofthe ffApatent has heretofore been issued to one LymanR. Blake for a machine in which a rest was placed on the endv of an arm,to reach into .the toe of .a shoe; -hutit was` not adapted to jf; sewing around toes or heels, or otherwise 'j around circles or short curves or angles,l as no 1 efcient means were provided Vfor placinghe thread across the barb ,of lthe needle 'as the work progressedV round a curve, or keeping the needle'andthreadfin -the same relative po- .sition'tothechan'ging line of theseam besides other deficiencies inpractice.

. These improvements, which areconsiderable A in number-'andimportance,haveregard, among lrnthings, to such a construction andari' rangement of the parts that the lines of the shall be straight instead of in a curve; '.fth'at theeedleand'its adjuncts, as also the ''.tlireadfguidqmay be continuously revolved,

1fand correspondingly changed in position, for seri'i g circles, curves, and an glee-that is, th at 'the needle shall be presented' to the Work restingon the arm in such manner thatthe barb "wfthe needle shall strike at right angles to the I support for th'eleedle. 4

:line'of seam-'While'the thread shallbe laid 1f' acrossl the barb ofthe needle, and in the line ,of-'the seam; that the throw ofithe eccentric oriciank, and also the length of the needlef i" bai,may bealtered and adjusted for different kinds and thicknesses of work; that the feed ggjfmy form a .guiding-point for the needle, and 'the' stitches; and' lthat the cast-off, Vas wcllasother parts, may confor'in to dierent thicknessesof-material, whil'eitlalso forms a` Thef llowing isla,dea'acrip-tionv of the draws;-

DIvIsioN U.

'.the boot or shoe.

i' ings and'nlachinc: ARA is the body or frame. f i:- ,1' .y I 4:

B is the standard; C, the gooseneck, having strappedto its ends aholloW-chan'ihered revolving cylinder, S, through which passes the needle-bar, and in which are placed the devices for operating, by means of the needle-bar, the

cast-oli' and feed. D is the main shaft, andE y the balance-wheel.' F is an adjustable eccentric on the shaft D, G being the eccentric-4 rod, the strap of which is tightened up at p.

. The upper end of the eccentric-rod is pivoted,

at a, to one end of a Walking-beam, H, oscillating, near the center of the goose neck, at b. Tovthe other end ofthe walkingbeam, at c, is

pivoted a strap, d, with a'projecting tongue or" pin, c, on the under side. This -pin c" passes A through one end of a small bar or cap plate, e, and is confined, at a gneaterl or iess altitude, by@ set-serew, gffor the purpose of graduating the length ofthe needle-bar, when the throw of the eccentric is changed, lso as to keep the lowermost point of descent of the needle unchanged. To the other end of this plate c the needle-bar I is hung, and pivoted by means of the screw or bolt f. The needle-bar l, With'a barbed needle, J, at its end', passes through the cylinder S, While, hy means of the feather a o n its side, taking into a corresponding groove in the head of the cylinder, the needlebar, with its accessories,revolves With the cylinder freely in either direction, and can be operated in any position in its revolution. K is the arm, placed at an acute angle with the bed of the machine, and' fastened to it at f. This angle is' such as to -enable the rest R, at the -end of the arm, to enter freely into the toe of The lines ofthe arm are straight instead of curved. L is a cam-cylinder, hung so as to be moved longitudinally on the main shaft D, and revolving with the shaft by means ofthe feather w on the shaft taking into a corresponding groove in the cylinder. At the end, `and on a collar of this can1-cylin der,is a strap, y, in which the cam=collar revolves. From the rear of this strap yprojects a pin', z, rextending through a slot, di", cut in` the rear side ofthe machine-frame. his aslotted cam-groove, cut in the cylinder L, in which plays a friction roller, r'. 'M is -a bent lever, ,pivoted tothe bed-plate of the machine at j,

and having, at one end, the friction-roll er i, running in .the canigroove h. By this means a lateral reciprocal motion,- as the cam L- revolves, is given to the other end of the'lever M, which is slotted perpendicularly atJe'. ldf is a straight .ratchet or. geared har, ruuningin waysA m in across the lunder side of the machine, withits gear-teeth at an angle corresponding with that of` the arin K, and having at one' end-a pin, l, projecting dowi1ward,fand into the slot k oi the bent lever M. By this means a reciprocal motion, hack and forth across the machine, is given to the bar N. 0 is a rod, passing up through a supportingfbox, o, and the lower side of thearni E, and having a gear-Wheel, n, at the lower end, the teeth of which take into the teeth of the bar N; this means the reciprocal-motions of ll oscillate or rotate back and forth. the rod The upper end of O is geared lieveling atp, and these gearteeth take into the gear-teeth of a circular thread guide'or whinr, inclosed in the rest It ofthe arm K. Thus,- While the needle is -reciprocated up and down by the action of the eccentric, Walking beam, and needlebar, the' thread guide or whir is reciprocated roundv and hack for the purpose of presenting' the loops to the needle hy the action of the cani, heut lever, geared har, and geared rod,z and this presentation ofthe loop can he iliade. properly what` ever the position ot' the needle. On the top ofthe rest R is a small plate, fastened down by a screw at q. vl is the cast-off, made with a circular eye embracing the needle at n', and U is the feedingpoint, both being operated by the motions ofthe needlebar. Thefeed-point U is made fast by a setscrew to a plunger, 5, which extends upward into a chamhered feed rod, 3, which is pivote'dto the upper head of the cylinder ,at 4, and has a lateral play on this pivot. Within the chamber of the rod 3 is a spiral spring, 6, to press the feed-point to the work.- vOn the opposite or hack side, Fig. 2, upward from the plunger 5, extends a rod, d', with a mmc/,projecting backward near its top. j is a dat spring, fastened to the cylinder at k, and pressing the rod 3 and feeding device outward ,and awayfrom the needle. The cast-'oft"l, with its hollow point a encircling the needle, and materially strengthening and aiding it in. drawing up the stitch, is made fast by a setscrew to a plunger, 8, which passes through a hollow rod, 7, tastened to the lowerhead of. the cylinder KS, and having a spiral spring, 9, in its upper part to press the castoff to the work, and adapt it to dii'erent thicknesses of material. At the upper end of the plunger 8 is a small notch, h", `into which the shoulder of the spring g takes when it ascends. 10 is va thin slotted sliding platejon' the under side of the lower head of the cylinder, surrounding both the swinging rod 3 and the needle I, and held up to cylinder Aby screws through slots at fw". g is a ilat spring, fastcned to the lower head of the cylinder at i", andprojecting upward, and having a shoulder at g. f is a small plate, fastened onV the-side of the needlehar Lhavin g a quadrant-shaped pin projecting out irom its resin, as shownby red lines at l". l`h `is a post, yrising from the lower head oi' the cylinder, and standing ou.v

the backside of theneedlelarm, tothel .top of which post, at t', ispivoted a lever, a', one. end of which acts underneath and upon,v the.' pin, o', vto raise the feediplunger 5. v,To the` other end is fastened a small spiral spring, e',

and raise the cast-od plunger 8, the other tov strike against the sliding plate '10, and, by moving it inward, give a side swing tothe.. feed-hars 3 and 5 and feed-point U toward the needle. VVheu the needle-har I descendsthe .projection l strilresnpon the top of one end `ot' the lever a', forcing the other end upward against the pin c, and thus raises the feed# point.. The lower edge of the plate j", strik ing againstA the top ot the spring gf, and press ing it hach, releases its shoulder from the notch 7i" in the casteil' plunger S, and allows the cast-off to descend and rest upon the upper surface of the material,v VWhen the needle; `har ascends tho step in' the earn projection j meets the ipin i and raises `the cast-oh" till the shoulder ot' the spring vg takes into the notch hf", and holds it suspended till kthe needle again descends. -At the same time, (the r y',ssure of' the quadrant-shaped pin Zf'un descends, and the incline onj, strilringagainst theA sliding plate 1G, 'moves inward the feedpoiut toWardt-he needle, when it is ready for another descent of theneedlehar. L and c are straps for4 silipporting and holding the vcylinder S to the goose-nackt), allowing it to turn freely round. Y, Fig. 1, is a revolvingstandaah-bracketed to the goose-neck at the side andhack of the revolving cylinder S. yThis standard has a gear-wheel, 2, on'its top, meshing into 'the geared head l ot' the cylinder. Z

is a wheel at the bottom of the standard, for

handling andturning it by hand. V is a bent` lever, pivo'tedto thelower'hackside of thev ,frame at x', and having pivoted to it at one end of the connecting-rod W, which extends up through the standard B, and is pivoted at its upper end at e to a cross-beam, X, which oscillates at a upon bearings, andy has, at its further end, a frictionroller, t, which runs in afcani-slot, s, cut in the periphery of the revolving cylinder S. .At theother end of the bent lever V is a slot, yf, through 4which passes the pin z of the `sliding cam-cylinder L. As the cylinder Sis revolved, thecam-slot 8,9 3,- erating by the friction-'roller t, through ,t cross-beam X, the connecting-rod W, andu bent lever V, causes the cam-cylinder IJO;

,A l the f lever c havin g been released,) the feedcnun ger ing either Way, and to any desired extent in horn, substantially as desoribed, I claim so oonvStruetging and arranging the part-s of a solehe lmade to enter and pierce the work across v'che line of seam, the .whir shall be revolved and operated -so as to lay-thetlire'ad across .stant-ially as setforth.

either direction, substantially as set; forth,

2. In combination with a Worksupporting,

sewing machine that, While 'in the sewing of curves and angles, the barbof the needle-sli all the needle-barb along the line of seam, sub! ,3. 'The combination of earn-cylinders S and L, or their equivalents, with lheir connections, substantially as and for the purposes deseribed.

4. The sliding Gain L, for"elianging thepositiou of the Whir-operabing meelianism, sub-` stantially as described.

5. The combination ol a hook-needle for seizing the loop,`witli a horn for entering and supporting the Work, a ing,` the Whir, anda Whir for presenting the loop to the needle, Substantially as described.

"6. The combination of hook-needle easboft' for shedding the loop, and feeding-device for feeding the Work, with thel horn, geared rod, and Wllir, substantially as desoribed.

A. I3. ELY. Witnesses CORNELIUS JACOBS, JOHN P. JACOBS.

geared. rod for operat--

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