US1047178A - Sewing-machine. - Google Patents

Description

y N, D15- Lum SEWING MACHINE.

APPLICATION FILED APB, 17, 1911.

Patented Dec; 17, 1912.

5 SHEETS--SHEET 1.

N. DE LONG. SEWING MACHINE.

, APPLIOATION. Hum APR. 17. 1m.,

1,047,178. Patenanwl-v, 1912.

5 sums-annum.

i .Ig

I A A 4 A Er/@fior y '/'elsone'lon f N.v DE LONG.l SEWING MACHINE. 1 APPLICATION FILED APAR. 17. 1911.

Patted Dec. 17, 1912.

5 SHEETS-SHEET 3.

N. DE LONG.

SEWING MACHINE. APPLoATIoN FILED 113.11. 1911.

1,047, Patented Dec. 17, A1912.

. I ki).

N. DE LONG.

SEWING MACHINE.

APPLIOATIUN FILED AMM?, 1911` 5 SHEETS-SHEET 5.

i i 11 l l ...han i sTATEs 'PATENT oirEToE.

' NELSONDE IJONG, OF CHICAGO, ILLINOIS, ASSIGNOR T0v KABO CORSET COMPANY, A CORPORATION OF WEST VIRGINIA. t

SEWING-MACHINE.

Application filed April 17, 911. Seria1`No. 621,511."

.To all @from t may concern.' I

Be 1t known that I, NELSON DE LONG, a

""itizen of the. United States, and a resident of Chicago, inthe' county of Cook and State of Illinois, have invented certain new and useful Improvements in Sewing-Machines; and I `do hereby declare that the followin is a full, clear, and'exact description thereo reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in sewing machines, and particularly to c'ertain novel features of .construction applicable to a gang-machine.

The inyention is shown herein in connect-ion with a machine provided with a plurality of rotative shuttles located in parallel vertical planes andbeing adapted to rotate about a common horizontal aiseach shuttle having a rotative hookwhich co-acts with an associated needle carried by the needle bar to form the stitch in a familiar manner. y

The invention embraces features of construction by means of which the shutt-le gang is supported in th machine base and Aby means of which the shuttles are driven and consists of the matters hereinafter de scribed and more particularly pointed out l es shuttle-gang and its supporting meclu'lnism.,vv

in the appended claims.

In the drawings :-F igur'e l is a vertical sectional view of the sewing machine, the plane of the section containing the longitudinal central axis of the shaft which operates the needle-bar and the vertical axis of said needle-bar, the left end of the base and the shuttle mechanism being shown in front .eleva-tion. Fig. 2 is a .view on an enlarged scale representing a transverse, vertical section through the machine base on the line'2--2 of Fig. 1. Fig. 3 is a viewrepre-v senting the same section but with the shuttle race open. Fig. 4 is a view representing a transverse, vertical sectiont-hrough the machine base on the line 4-4 of Fig. l, said= section being from a direction opposite to that from which the sectionsoit Figs. 2 and 3 are looked at. F 1g. 5 is a. view representing a vertical section through the machine base on the line 5 5 of Fig; 4. Fig. 6.is

a view representing a top plan view of the Fig.` 7 is a detail View representing a lefthand end elevation of theparts shown jin Fig. 6, including the separator plates, and the fixed and hinged members of the shuttle race, but with the shuttles themselves omitted. Fig. 8 is\a detail View representing one `Specification of Letters Patent. Patented Dec. 1"?, 1912.

of the separator plates in side e1evation.

Fig. 9 is a View on an exaggerated scale, representing a vertical section throughthe Acentral axis of one of the shuttles. Fig. 10

1s a view representing a partial horizontal section through Fig. 9 on the line l10--lf). Fig. 11 isa perspective View ofthe fixed member of the shuttle race.' Fig. 12 is a perspective View of theA hinged member of the shuttle-race. Fig. 13 is a View representing a partial section in :the plane indicated by the line l3-13-of Fig. 3.

.In that embodiment of. my invention illustrated in the accompanying drawings,

referring rst to the general features of the machine, A indicates the base-plate; B, the overhanging arm; C, the main driving shaft rotatively supported in said armB; C1, the main driving pulley rigidly secured to said shaft and' adapted to be driven by a band or belt' (not shown) Which is operated from a power driven pulley; C2, the usual handwheel on the shaft C; D, the needle holder carried by the reciprocating needle-bar which is operatively connected lwith the driving-shaftC `by a pitman D1 and a crankarm D2; 'andE indicates a setof rotary take-upv wheels or disks corresponding in number to the number of need-les and which are rigidly connected with the outer end of an extension c of the shaft C. The parts thus far referred to are of familiar construction and'operation and form no part of the present invention.

Referring now to the shuttle-gang and the means adapted for supporting and driving the same, which embrace the novel features comprising the present invention: 'lhe shultles are-mounted below the usual throatplate A1 and are of that type which includes a hook adapted to rotate continuously in the same .direct-ion and to carry each thread. loop about lfhe central axis of the shuttle through a complete revolution of 360 degrees. f

F indicates the shuttles (see Figs. 1, 4 and 5,) of which there are-four.sllown. .11.'l1c drawings, and which are mounted slde by i sa side in parallel .verticalJplanes in a shuttle race G located vbelow the throat-plate A1 and supported by a depending plate A2 preferably made integral with the base-plate.

The shuttle-race G comprises a. fixed m em' ber Grx rigidly supported by the plateA2 .and Ya hinged member G", which is adapted to be swung forward and downwardly to movin or re lacing a Shuttle; or for anyv Aother reason. The fixed member (Six (Fig. l1) of the shuttle-race embraces an upright membei` or plateg/ haring on its rear'face a longitudinal rib (/4 which engages with a .horiiontal slot. g formed in the front face of the upright supporting plate/A2; and two horizontals forwardly projecting. longitudinally spaced arms y, y which 'carry bearing sleeves y, f at their outer ends. The hinged member GY (Fig. 12) consists of two longitudinally spaced arms G tll provided at their lower ends with apertures G3 G by vmeans of which theyare lrotative'ly mounted on the bearing sleeves g3' g" of the fixed member Grx and `of a transversely curved apron G4, which partially'inclos'es the front and bottom of theshuttle-race (see Figs. l andQ). The hinged member v is held against endwise movement in one direction by annular shoulders '(/8- g on t-he bearing sleeves g gT and against endwise movement in the opposite direction by a-.eollar G secured on the right-hand end of the bearing sleeve g3 and abutting against the righth'and face of. thearm G1.- SaidI collaris held in fixed position by a set-screw (11 (Fig. 5). r

From this description it is apparent that the hinged member Gry may freely swing upon the bearing sleeves g3 gT of the fixed member G". Vhen it is swung forwardly and downwardly, the lower edge of the apron G* swings rearwardly and `upwardly until it strikes the lower edge of the plate g of the fixed member which thus acts as a stop to limit the movement of the hinged' arm) is provided with a lug y which projects forwardly and upwardly beyond its bearing sleeve 03. The hinged member GY has a. chambered boss gli' carryinga springcontrollcdvlatchin the form of a reciprocating plunger gm having at its inner end a detent g-l which .engages a notch (/15 in the-lug gu' of the fixed member. '1" he outer end of t-hc plunger (/3 project: .rough an aperture in the end of the boss and is there; provided with a thumb piece or cap f/l for operating it. It is apparent that. this latch will lock the hinged member GrX in position to close the shuttlerace and that the shuttle vrace may be opened after the saidlateb is disengaged.

H indicates [shaft located below the machine base A and extending parallel to. the main shaft C with its central axis in the 7g vertical plane ot'` and below.A theconnnon cent1-al axis of thil shuttles l".v Said shaft is rotativcly supported at one end in a bearing sleevev H1 carried b v a hanger .llL rigA idly supported .bythe base. .t and near its 7 5 opposite end `in the beari11g-sleeve,y3 ole the4 fixed member Grx ofA the shuttle-nwe. As/ shown in the drawings, the shaft llA is. mounted in a bushing IPwhich is supported by the bearingisleevc y. 1 the right-hand 80 end of said shat'tis rigidly .secured a pulley li4 which is driven by a belt C from 'a pullcy'C4 rigidly secured to the main driving shaft C.

J indicates a` sct of SpIhr-gears, corr'e- 35 sponding in number to' the number of shuttles F, keyed to the shatt ll which projects to the left beyond the bearing sleeve g3 below said shuttles. Each gear J is lo ated in the vertitxll plane of an associated shuttle which, as will presentlyppear, it supports and drives." The. gang of gears is held in position on' the shaft Il below the gang of shuttles by a spacing sleeve h located on the shaft H between the bushingr Il3 and the 95 right-hand gear of the gang and -the gears are held in the required spaced relationeach to the other by spacing 'washers h1. The end ofthe shaft H is threaded as indicated at ILL to receive a nut h4 which maintains 10c the gears against longitudinal .movement on the shaft. When-'itis desired to remove the gears, the nut L may be unscrewed and 'removed through 'the bearingI sleeve g".

For a purpose presently 't be described, 105 the gears J are provided-with annular shoulders spaced radially within the pitch -line of the teeth of the gears. As shown .hei-ein, the gear-teeth of each gear are formed in a f'lat fiber ring j which is mounted on .a 110' smaller ring 7'2 keyed to the shaft H. Said ring 7'2 has at one end a flat annular flange j* engaging one face of the fiber ring j, and a second fiat ring j3 mounted on the opposite A end of the ring j engages the opposite face of the ber ring jl. vThe ring ja and the flange 7" of the ring j2 are rigidly secured to the fiber ring j* by rivets as shown in Fig. 5. The peripheries of the ring js and of the fiange j* provide the annular shoulders j' 120 above referred to.

Passing now to 'a description of the shutt-les F,`said shuttles are identical and a description of one will apply to all.

" projecting, -annular rib' f,1 having gear-teeth f which areadap'tedl'to mesh with the teeth of an associated gear-J and' fiat rings 'f3 bearingo'n the peripheral surface of the ring fand secured against the opposite faces of the rib if?. The outer faces of the flat rings 7'e fare located in the planes of the faces of the ringl f. Said flat-rings .fa project ra- 'di'ally'beyond the gear-teeth f2 and constitute spaced radial flangies on the hook carryingmember which are adapted to embrace the marginal faces of the associated gear J and engage and ride upon theannular shoul- ............d'ers jof said gears. Eachgearal. thus maintains 'the lower part of the. associated lhook-carrying member in its proper .vertical plane by reason of its engageme vt between the spaced radial flanges f3 .of th hook-carrying member, and the annular shoulders j' located at each side of the plareof the teeth of `'said gear provide the entire support in a vertical direction, for said hook-carrying dinallyspaced lugs q1 projecting upwardly -rom-the plate of the fixed memberGrx .of theshuttle-race Aand the forward shaftis rotatively mounted ait the upper ends of the arms G1 G2 of the hinged member GY. Said 'shafts ar'ejremovable from their respective supports. As shown in the drawings, the rear shaft K has reduced ends journaled in bushings KX Kx which are held rigidly in notches 7: lf: formed in the lugs g1,- said notches opening forwardly and downwardly and the said bushings being retained ltherein by set-screws k1 Is. 'lhe shaft K hasreduced ends one of which is journaled in an aperture 7c3 formed in the arm G2 Aand the, other of which is journaled in a bushing Ky held rigidly hy a. set-screw M in ,an aperture 7a2 'in the arm G1. B

loosening the vset-screw, the shaft K, which is of the same diameter as its bushing KY,

may bc withdrawn longitudinally through L' L1 indicate setsof disks which are rotatively mounted on the shafts K K1, re spectively, there being a. disk L and-la disk L1 for each shuttle. Each of said dislishas a radially extending annular rib Z which is adapted toengage between the flat rings fsf constitutmg the flanges offthe associated hook carrying ring F1, and annular shoulqt. 1 l

ders Z1 Z1 located at eac'li side of the plane of the rib Z, which shoulders have bearing contact with the peripheralv edges of said 'flat rings fi.' Said disks L and L1 are spaced on their respective shafts to correspond with the spacing of .the shuttles F and areheld -in'said 'spaced relationb.)T s acing washers '12.' The shafts K Klare so ocated and the diameters of the disks L Ll so proportioned -that saiddisks engage the peripherles of the rotative hook-carrying ringsin the manner described at points located above the horiz'ontal diameters of the shuttles, which points,.together with the points at which tlie .gears J and their annular shoulders j V engai'gesaid rings, divide the peripheries of the rings into substantially equal parts.

Ihe shuttle is thus given lateral support at 'three points, which-support maintains it in the vertical planedetermined by said points.

Between. the shuttles and at each end of the'gang of shuttles are-located separating platesM. Each of said plates has an upper side m formed 'in the arcof a circle ofsubstantially. the radius of the hook-carrying rings'F", a rear vertical side m1, and

Aa front outwardly` inclined side'm?. The

bottonrms of said'plate is horizontal. Said plate M is provided with; apertures m* mi m, located, respectively, at the intersection of the bottom side m? and theforward side m?, and at the other ends of said sides.' Said plates M areassembled. on rods N N1 N? which extend respectively through 'thel apertures m, m, m". Spacing washers M1 holdthe plates in' proper. spaced relation. The rods N and N1 havereduced ends n nl which are supported, respectively, ingrearw'ardly and upwardly openm notches n2 11,3 formed in the rear edges of t earms G1, G2 of the hingedmember Gry of the shuttle-race, 'the inner face of each arm engaging against the shoulders formed by th'e parts of lsaid rods of larger diameter. The rod N2 also has reduced ends n'whi'ch rest on forwardly projecting fixed lugs a5 formed on the vertical plate g of the fixed member Grl of the 'shuttle race andfhaving horizontal upper faces. The shoulders formed by' the part of larger diameter of the rod N2 abut against the opposing vertical faces of the lugs 71.5' and hold said rodagainst ilongitudinal movement.

E ach of the plates M except the one located at the right of the gang of 'shuttles is located' in the plane of movement of an associated-4 needle D3 and is provided on its upper side mwith adee -wide notch Mx adapted to provide room or the descent 0f said needle. r

ioo

lf3. indicates thefcop-holders'if the shuttles. l Said cop-holders are located'within the rotary hook-carrying members F1 and each Vcomprises a body member F4 and a cap F .which form an inclosed chamber to 'hold the thread cop F in a familiar manner. The

body of the cop-holder has an annular, radially 'etcnding rib f1 which is located in a recess 71" 1n one face of the ring F1, the inner face of said rxl hearing against the shoulder f i'orined about' the inner periphery of the A ,Langages laterally against the vertical sides as indicated of the notch M1 of said platefin such manner that the plate. will hold the cop-holder against rotation' with the hook-carrying member within which it is located. The bottonrottlu` boss f1 does not bear on the bottonrot-the notch Mx but a space is left be-l tween the. two so that the thread FX from the thread cop mayrun easily between the two. Within the boss f1, the body of the cop holder is eut away to provide an upwardly opening notch F1'.

In the peripheral edge of the rear wall of thtl body member F1 of the cop holder adjacent to the notch or opening Fy therein is formed a hook fs having its operative face turned toward the point of the hook F2, said hook serving to engage a part of the loop and hold it; while the hook F2 engages the other and carries it around the cop holdino' member in a familiar manner. Additionzil hooks fJ f spaced in a circumferential direction toward the left, (as shown in Fig. 4,) from the hook fs holder so as to insure the catching of the thread by the rear wall of the cop holder in ease tshould not be caught' on the first hook fs. The hook carrying lnember F1 l(see Figs. 4 and 9) is cutaway below t-he hook, at f1 and the thread loo is adapted to be carried about/the cop ho der through an opening f between the peripheral edge of said cop holder and the inner circumference of said hook carrying member at. a point adjacent the hook.

A detailed description of the operation of l the shuttle is not here necessary as its operation is well known to those familiar With the art. As the needle descends the loop is caught by the hook F2 and as said hook v passes the hooks f8 f, one strand of said loop 1s caught on one of the latter named hooks while the other strand is carried by the hook F2 around with it in its rotation, one strand of the loop passing through the opening fu, and when the thread is drawn up by the needle and after the hook F2 has made a complete revolution, escapes through said opening, thus in etlcct passing the cop holder through the loop and loopingr the needle thread about. thc thread from the cop holder. In the machine shown herein, the gearing .I is such that the shuttle will make two complete revolutions for one rcciprocation of the needle, thus providing moretimefor 1,047,178 i jf are provided in said ,cop

vthe fixed member of the shuttle race whereupon the hinged member Gry is rotated downwardly into the position indicated in Fig. 3. In this movement of the hinged member GY, theshuttles roll about the gears J and the .(spacing plates M and the shaft K1 with its supporting disks L1 are withdrawn with said .hinged member. The shuttles, either one or more, may b'e then lifted out of the race and re laced. I

replacing the shuttles, as will be readily understood, it is necessary for them to be assembled in a certain delinite angular 'relation to each other so that they will cach:

properlyA coperate with their associated needles, and to this end I provide in the flanges f3 of each shuttle, a notch P (see Figs. 2 and 9) which are similarly placed in the several shuttles. In the arms G1 G2 of the hinged member Gry I provide trans- Averse apertures R' (see Fig.l 12) in which are located reciprocating rods R1, to the outer ends. of which are, connected a cross bar R2 having a handle 1'. Made integral with said cross bar arefaplurality of rods S which are each located in the plane of a shuttle and which have detents s adapted for engagementwith the notches P of said shuttles. In the arms G1G-2 are slots t adapted to receive pins T secured to the rods R1. and acting as a limiting stop to limit the forward and rearward movement. of said rods. outer faces of the arms G1 G2 have spaced detents t1, t1 adapted for coperation with Springs T1 secured to the a notched lug U having notches u, u, so'as to hold said rods yicldingly in their rear-ll' ward or forward positions. The rods S are used to locate the shuttles in proper angular relation in the following manner: When the shuttles are placed in the race, the bar R2 is pushed to its innermost position, in which the detents s are adapted for. engagement with the notches P of the shuttles. In assembling said shuttles in the race, before the hinged member GY closed' position, each shuttle is placed in the race, so that its notch P engages the detent s; Each shuttle .is then engaged with the proper gear teeth of the gears J. After all the shuttles are assembled in the race, the bar R2, -by means' of the' handle r, is withdrawn to its outermost position, thus disengagmg the detents s from the associated notches P ofthe shuttles. The hinged member is then swung i`nto place, the shuttles rollin on their respective 'gears until they are rought into the position indiis swung into It is apparent frbm the description of the Amanner of mounting and supporting the space plates M, that they may be withdrawn in assembled relation when the hin ed member.Gy is in open position. The anges f8, projecting beyond the gear ,teeth of the shuttle and embracing the gear teeth of the gears J, shroud beth gears and prevent anyv danger of the thread' Vcatching the gear "I I 4a. The continuous peripheral engagement between the rotative shuttle and the rotative supporting devices, one of which is provided with means for. driving the shuttle, as hereinbefore stated, overcomes many of the disadvantages incidentto sewing machines employing a rotative shuttle and shuttle type, the rotative shuttle was provided 'with eripheral openlngs to form hooks, and w ere only one shuttle was em? ployed the shuttle was directly driven by a shaft. But, on the other hand, when two or more shuttles or a gang o f shuttles were employed, they had to be driven. by a pe ripheral drive, because, if a shaft drive were.

used, the threadwould be wound about the shaft in the looping'of the same by the shuttles. This objectionable feature was avoided by the peripheral drive. 'But as' the shuttles were provided with peripheral openings, as above stated, one ear could not be used ,to 'drive the shutt e, because when one ofthe peripheral openin came at the point of Vcontact between vt e gear and the shuttle, the two would be thrown out of-mesh. Two or more gears were, therefore, used with each shuttle, and so angularly spaced with respect to each other, and to the peripheral openingsin the shuttle, that the openings would not, at the same time, come at the points of contact between the gears and the shuttle. In my improved construction, by reason of the fact that the shuttles are provided with hooks on the side faces of the same, thus doing away with the peripheral openings and giving the shuttle a continuous peripheral surface, one gear may be employed to drive each shuttle, thereby avoiding 'the necessity ofl a plurality 'of gears for each shutf tle, and consequently an expensive and comwill afford an indication of thevolume of' noise produced by the machine as a whole. By reason of the continuous peripheral engagement between' the shuttle and its driving gear in m machine, irregularity of act-ion and noise is entirely eliminated. Moreover, in the employment of the peripheral openings in the shuttle, as in the prior construction, when one of the openings comes at the point of Contact between one of the gears and the shuttle, said gear is, for an instant, thrown out of mesh with the shuttle, but the other ears, const-ituting the other members of t e drive for the shuttle, continue to rotate the shuttle with the resultthat thetooth on the shuttle at the side 'of the opening, which is at the .point of contact, is forced against the teeth ofthe gear, which is at the time out of mesh. This produces a hammering or pounding, and to s uch a degree that it vibrates 'the whole machine. If such a machine be operated at a high rate of speed, so as to make 3,000 to 4,000 stitches per minute,' the pounding would be so great that' itwould tend to shatter the shut-tle, break the gears and. would also injure the other parts of the machine. In my device, however, the continuous peripheral engage- .ment of the shuttle with its supporting de" vices produces a smooth action and does away with any such pounding. It follows, therefore, that a high speed may be-maintained with my machine and 8,000 to 4,000 stitches per minute may he successfully made. Moreover, in the prior construction, with the peripheral openings inthe shuttle to' form the hooks, the gear teeth on the shuttle terminate at each side of the openings and the thread, in being caught by the hooks, is liable to become entangled in the gear teeth. By providing the hooks on one side of the-shuttle, as in my device, there is no danger of the thread being caught by the gearteeth on the shuttle. Further4 more, in my device, when the shuttle-race is opened by swinging the hinged memberA thereof downward, the shuttles will roll smoothly about the driving gear and one of the supporting devices mounted on said hinge membenfor the reason that the engagcment between the shuttle and the driving gear andthe supporting device is continuous.

. From the above, it will be evident that the continuous peripheral engagement bctween theshuttle anditsvdriving andrsup-z porting members hasfmanyadvan'tages not m5598864. mathe-fasering amahinsuat .the

rata-.tira f shutter ityfpa es ,heretqfla structed.

awhile .is fdescribirse@inhedinieiifif 1 winterse, Niere stared. hartem-.e

tails of mechanical construction and, arrangement, it 1s to be understood that I do not.`limit myself thereby, except as pointed vided with means for out in the appended claims..

I claim as my invention 1. In a sewing machine, a rotative shuttle comprising .a rotative hook-carrying,mem`

.ber and a cop-holden'and a plurality of rotative supporting devices adapted for con. tinuous peripheral engagement with said rotative hook-carrying member, yo ne of said rotative supporting devices being provided with means for driving said hook-carrying member.

2. In a sewing machine, a rotative' shuttle comprisinga rotative hoo carrying memberand a' relatively fixed cop-holden'and a plurality of rotative supporting devices adapted for peripheral engagement with said rotative'hook-carrying member, one ofi said rotative supporting devices` being pro-- carrying member.

3. In a sewing machine, a rotative shuttle comprising a rotaryA hook-carrying member and a relatively fixed cop-holder, and a plurality7 of rotative supporting devices adapted for continuous peripheral eng. ,lfage 'ment with said rotative hook-carrying memsupport ofone of said rotative supporting' ber, one of-said rotative supporting devices being provided with means for driving saidv hook-carrying member.

t. In a sewing machine, a rotative shuttle comprising a relatively fixed cop-holder and an annular rotative hook-carrying member, said hook-carrying member being -conlstrncted, to .pass the thread-loop .within the hook-carrying member and about the cop-holder, and a rotative supporting and driving device adapted for peripheral engagement. with said hook-carrying member.

5. In a sewing machine, a rotative shuttle comprising a rotative hookcarrying Inemf ber and a. relatively fixed cop-bolder, a plul vralitv of rotative supporting devices .adapted for peripheral engagement with said hook-carrying membexgfone of said rotative supporting devices being provided lwith nica ns for driving said l1bokcarrying., r memier, and a movable member adapted for the rvlng member, driving said hooks Y A plate andcop-holder being provided with -limit ',of each set of said r rotative hook-carrying member and a copholder, and a pluralityofsets of rotative supportingdevices, the rotative supporting devices o each set' being adapted -for peripheral engagement with one of said rotative hook-carrying members, lone of said rotative supporting-devices of each set being provided with means for driving its associated hookfcarrying member.

8. In'a sewing machine, va plurality ot 'longitudinally spaced rotative shuttles each comprising a rotative hoolccarrying member and a relatively fixed cop-holder, a plurality ofsets of rotative supporting devices, the rotative supporting devices of veach set beingadapted for peripheral engagement with one of. said rotative hook-carrying members, one of said rotativesupporting devicesv of each set being provided with means for driving an associated hook-carryand a plurality of spacing plates separating said shuttles, each vspacing engaging vparts adapted for holding said cop-holder in iixed relation relative to its v.associated hook-carrying member.

9. Ina gang sewing machine. in combi-v nation with theshuttles, a plurality of spacing plates separatingrsaid shuttles, a movable member adapted for the support ot said plates and a stop member adapted lo the movement of said plates when moved into operative position.

10. In a gang sewing machine, in combination with the shuttles,A a plurality of spacing plates separating said shuttles, a hinged member adapted for supporting said plates', and aY stop member adapted to limit the movement .of said- 'plates when said hinged member is swung into operative position. i I

1'1. In a sewing machine, in combination with the shuttles, a race comprising a iixed member and a hin ed member?. said tiredl member beingprovi ed with aperture'd hubs upon which said hinged member is jou-e naled, 'a shaft extending through the aperture in one of said'hub's, a plurality of gears feathered t'osaid shaft adapted for driving said shuttles, and means for confining 'said gears on said shaft-,said means being removable ,through the aperture in one of said hubs Vof the fixed member.

12. In a sewing machine, in combination .with the shuttles, Aa race for said shuttles comprising relatively .movable A.member-s, a plurality of sets of rotative supporting devices,each set being adapted for peripheral one of said shuttles, two otative supporting devices being carried byi`one of said members andthe third' one ofthe set beingcarried by --the other member.

" 1 13. In a sewing'mac'hine, a rotative annular shuttle comprising-a 'rotative hook-car-V engagement with rying member and ajixed cop holder 'sur,

rounded thereby, said rotative hookcarrying member having shrouded gear-` eral engagement with the shrouds of said gear-teeth, and rotative disks having ribs engaging between the shrouds of said gear- -teeth at points above the horizontal diameter of said shuttle and annular shoulders adapted for peripheral engagement with the shrouds of said gear-teetl 14. In -a sewing machine, a. rotative annular' shuttle comprising a rotative hook-cam rying member and a fixed=cop holder surrounded thereby, rotative ,hook-carrying member having shrouded.` ear teeth, a

ywit-h the base, a rotative annular .shuttle rotative gear arranged vertica below said shuttle and having a. central horizontal axisand adapted for drivings'aid s huttle and provided with annular shoulders adapted vfor peripheral engagement with the slirouds of said gear-teeth, and rotative disks havino` ribsengaging .between the shrouds of sai' gcar-teeth at points above `the horizontal-'diameter of said shuttle, annular shoulders adapted for peripheral engagement with the shronds' of said gearfteethfthe rotative axis of one of saiddisks being fixed, 'and a hin gedA memberv rotatable about. the central horizontal axis of said' gear adapted for supporting the other disk. Y A

15. Ina sewing machine, in combination with the base, a rotative annular shuttle comprising a rotative hookcarrying member and a fixed cop holder surrounded thereby, said rotative hook-carrying member having shroudedgear-teeth, 'a rotative gear ar,-

ranged vertically below said lshuttle and having a central horizontal axis-.and ada ted for driving said shuttle and provi ed with annular shoulders adapted for peripheral engagement with the shroud's of vsaid gear-teeth` and rotative disks having ribs" engaging between the shrouds of sald 'gear teeth atpoints spaced each side of the vertical dianieter of said shutt-le'and'above the. horizontal diameter. of said shuttle, and- /h'aving annular shoulders adapted for peripheral engagement with the'shrouds'gof said geant-.retin one of said disks beingfc'arried by the base,l a member hinged aijiit the central horizont-al 'axis of-said and means carried n v said hingedfiriember, forholdng said cop against rotation.

1G. ln a sewing machine in .combinationAv with the base, a rotative annular shuttle comprising a rotative hook-carryin mem-- berend a fixed cop holder surrounde thereh v, said rotative lioolncarrying member havearl adapted for carrying the other of saiddisks,

having a central horizontal axis and adapte" 'teet-h, one of said disksbeing carried by the frame, a member hinged about thebentral horizontal axis of said gear adapted .for carrying the other disk, .means carried by said hinged member for holding saidcop hinged lmember in closed position.

17. In a sewing machine, in combination comprising a rotative hook-carrying member and a fixed copholder surrounded*'there-- by, ,said rotative hook-carrying member liavmg shrouded gear teeth, a rotatiye geararranged vertically below said' shuttle and adapted for driving. said shuttle and pro-- vided with annularshoulders adapted for peripheral engagement with the shrouds of said gear-teeth, rotative disks having ribs engaging between the shrouds of said. earteeth at points loca-ted respectively in ont of and at the rear of said shuttle and hav ling annularV shoulders adapted for ,periph-f eral engagement with the shrouds'of saidgear-teeth, one of said disks being carried by the frame, a hinged member adapted for carrying the pther disk, and a plate carried by said hinged member ,and provided with a notch for thedescent'of the needle, said cop holder laving a"boss 'extending vinto said notch .and adapted tocoact therewith to prevent the rotation of said cop-holder.`

lagainst rotation, and means for locking said 18. In' a sewing machine, aplurality of longitudinally spaced rotativefhfuttles, each comprising tin-annular rotative hook-carrying member and a fixed cop holder surrounded thereby, said ,rotativez hook-carrying member having shrouded, gear-teeth, a

plurality of longitudinally spaced rotative gears arranged vertically b'elow said .shuttles, each a apted for driving one of said shuttles and provided with annular shoulwith the shrouds of the gear-teeth, two sets of lon itudinally spacedrotative disks having ri s engaging between the shrouds of said gear-teeth at horizontally spaced points ders adapted for peripheral engagement above the horizontal diameters of said shuttles, and annular shoiilders adapted orvperipheral eiigagem'entfwith the shrouds of said shuttle teethl 19. In 'a sewing" machine, a pluralityl of longitudinally spaced rotative shuttles,'ea`ch comprising-an annular hook-carryin meinber and a cop holder surrounded t ereby,A

-said rotative hook-Carr 'ng member having shrouded gear teeth, a plurality .oflongitudinally spaced rotative gears arranged vertically below said shuttles and each havmg a central horizontal axis, each adapted for driving one of said shuttles and provided with annular shoulders adapted for peripheral engagement with the shrouds of the gear-teeth, two sets of longitudinally `spaced rotative disks having ribs engaging between the shrouds of said gear-teeth at horizontally spaced points above the horizontal diameters of said shuttles, and havin annular shoulders adapted for periphera engagement with the shrouds of said gearteeth, one set of said disks having a fixed axis of rotation, a hinged member adapted to be rotated about-the central horizontal nularshoulders adapted for peripheral engagemcnt with the shrouds of the gear-teeth,

two sets of longitudinally spaced rotative disks having ribs engaging between 'the' shrouds of said gear-teeth at horizontallyI spaced points above the horizontal diameters of said shuttles, and having annular shoulders adapted for peripheral engagementwith the shrouds of said gear-teeth,vfixed means for rotatively supportin 'one set of disks in the base, a hinged mem'er adapted to be rotated about the central horizontal axis ot said gears carrying the second set of disks, and a plurality of plates for spacing said shuttles carried-by said hinged member, said plates and cop holders having engaging parts adapted to prevent the rotation ot said cop holders.

21. In a sewing machine, in combination with the hase, a plurality of longitudinally spaced rotative shuttles each comprising an annular rotative liool '1rr ying member and a cop holder surrounded thereby, said rotative hook-carrying member having a plurality ot' shrouded gearwteeth, a plurality of longitudinally7 spaced gears rotatively mounted in \the hase vertically below said shuttles and each havin a centralhorizontal axis, each gear being adapted for drivingr by said hin ed' shrouds of said gear-teeth at horizontally spaced points above the horizontal diameters of said shuttles and having annular shoulders, adapted for peripheral engagement with the shrouds of said gear-teeth, ixed means for rotatively supporting one set ot disks in the base, a hinged member adapted to be rotated about the central horizontal axis of said gears carrying the second set. ot disks, and means carried by said hinged member adaptedfor engagement with said shuttles to hold the same in a fixed angular posltion when assembling them.

22. In a sewing machine, in` combination with `a base, a plurality of longitudinally spaced rotative shuttles each comprising an annular' rotative hook-,carrying member and 'a :fixed cop holder surrounded thereby, said` rotative hook-carrying member having shrouded gear-teeth, a plurality vof longitudinallylspace'd rotative gearsarrangedvcrticallybelowl said shuttles and each having a central horizontal axis, said gears being journaledin the base and'being adapted -for driving said-shuttles and provided with an'- nular shoulders adapted for peripheral engagement with the shrouds of the gear-teeth, two sets of longitudinally spaced 'rotative disks having ,ribsV engaging between the shrouds of said gear-.teeth at horizontally -spaced points above the horizont-al.diameters of said shuttle, andvhavin'g annular shoulders adapted for peripheral engagement with the shrouds of said gear-teeth, fixed means for rotatively supporting one set. ot' disks in the base, a hinged member adapted to be rotated about the central horimnital axis of said gears carrying the second sel ot disks,a plurahtyof plates tor spacing sind Ashuttles carried by said hinged mmnlwr` said .plates and cop holders having enga ging parts adapted to prevent the rotation ot' said cop holders, three rods upon which said Spacing plates are assembled, two ot said rods heilig supported in open notches toi-med in said hinged membei" and fixed stops `adapted to engage the ends ot said third rod when' said hinged member is in closed position.

Tn testimony, that l claim the foregoing as my invention l allix my signature in the presence ot' two witnesses, this 29th day of March Afl). 19H.

NELSON DE LONG. l'Vitnesses:

Gnonon l?. lVinu-ms, T. Tl. Amarins.

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