US1041658A - Feeding mechanism for sewing-machines. - Google Patents

Description

VA. A. MERRITT.

FEEDING MEGHANISMIOR SEWING MACHINES. APPLICATION FILED JAN. 2B, 1910. RENEWED AUG. 9, 1912.

1,041,658, Patented 0613.15, 1912.

a SHEBTS-SHEHT 1.

I 6 6" x 0 U l I D 1 v I J] awe/whom A. A. MERRITT. FEEDING MECHANISM FOR SEWING MACHINES. APPLIUATIUN TILED JAN. 28., 1910. RENEWEDAUG. 9, 1912.

1,041,658. I Patented 0015.15, 19i2.v

' s snnms-s1inm 2.

A. A. MBRR ITT.

' FEEDING MECHANISM FOR SEWING MACHINES. APPLICATION FILED JAN. 28,1910. RENEWED AUG. 9, 1912.

1,041,658, Patented"0ct.l5, 1912.

. v 8 SHEETS-SHEET 3. f 1 a 52 f 324 ELJMJE Q2]? 32 5 5 J D 1 vi ":fl' E1 3]] A k E |::;I I j 90 I? I I {316; I 32 Y .1 327 318 1 328 v A. A. MERRITT. FEEDING MECHANISM FOR SEWING MACHINES.

APPLICATION FILED JAN.28, 1910. RENEWED AUG. 9, 1912.

Patented Oct. 15,1912.

8 SHEETSSHEET 4.

M m W W 1 mm Q $n \wm hmm hm mum mh New m6 Q Q A. A. MERRITT.

FEEDING MECHANISM FOR SEWING MAUHINES.

APPLIGATION FILED JAN.28,1910. RENEWED 'AUG. 9, 1912.

- I Patented Oct. 15, 1912.

A. A. MERBJTT.

FEEDING MEGHANISM FOR SEWING MACHINES.

APPLICATION FILED mum! 1910. RENE ED AUG. 9, 1912.

1,041,658. I Patented 00t.15,191 2 8 SHEBTSSHEBT B A. A. MERRIT T. FEEDING MECHANISM FOR SEWING MACHINES. APPLICATION FILED JAN. 28, 1 910. RENEWED AUG. 9, 1912. 1,041,658. Patented Oct. 15,1912.

8 SHEETS-SHEET 7.,

A. A. MERRITT. v FEEDING MECHANISM FOR SEWING MACHINES. APPLIUATION FILED JAN.28,1Q10. RENEWED AUG. 9,1912.

1,041,658. Patented 0@1;.15,1912.

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afkozneq S 'nmaingo saunas ARTHUR A. mamor wosoes'rim,

NEW some.

F EDING MEoHanIsM s g a OFFICE..-

riassnoiwssr'rs Assmnon TO 'w LLoox 8c err-ms snwme MAQZIINE COMJPAN'Y, or,

NEW YORK, n. Y" a oqsromrxonfor son snwmo-mmmnns. I

Specification 0! Letterslhtent. FPfatntezdflct. 15,1912; 7

Driginal application filed December 12, 1908. Serial No. 467.163. Divi'ded and'xhis application fiiea Jfanu'a i l 28.1910, Serial No. 54G,598. Renewed August 9, 1912. Ser1a1'No. 714,307.

To all wlzonyit may concern. I

Be it knownthat I, ARTHURA. MERRITT, of lVorcest-er, Massachusetts, have invented new and. useful Improvementin Feeding h Ieclia'nism for Sewiiig-liflachines, which i11 .iention-is fully set forth in the followingspecification. I This is a division of my application filed December 12th, 19085 Serial No. 46?,163,.tor improvements in sewing machines.

The present invention, which relates to in'mrovements' in feeding 'mechanisms for sewing 1nachines, Will be readily understood by; reference to theillustrationsiinthe accim ipamzing drawings 0t What are at presentregarded as preferredemoodiments thereof.

I a cover for section (similar to "In said drawings-'-Fignre l is an end elevation, looking from the left, of a mac'liine towhich the inventionis applied; Fig. 2 is. a plan'view with parts in section; of a portion of the WOIlPZlLlll'l of tl'ieinaclnne, closing an opening in the top of the arm being omitted to expose parts Within the, arm: Fig. 2* is atop view with parts in section of the coupling shown in section in Eig. 3' is a Vertical sectional view on line 3 3 of Fig. 2; Fig. 4. is a transverse section on line -l-l of Fig. 3: Fig. 5 is a ,iletnil View of a nut referred to in the detailed ilesrriptiony lg ig. (his a vertical section through \vorloarin: Fig. 7 is a transverse section on line 7 7 of Fig. (i: Fig. 8 is a horizontal section on line 8 -8 of Fig. 7: Figs. 9 and 10 are detail xiews of parts in which the loopcr-levcr is fu'lcrnl'i'iiw {Fig 11 comprises a collection of detail perspective rieirs of parts ot' the rork-a-rni'and the mechanism associated therewith: Figs. 12-18 illustrate an cnilgiodiment of means for adjusting and determining the positions of. the fnlcrnins of the two vertical feedlci ers. to vary .the throw of the 'two feed-n'1e1nbers.different troin' correspomling means illustrated in Figs. ll .l :Fig. 1-2 is a longitudinal vertical Fig. 3) through av part. of the \n-irlq arin on line of Fig. i l; Fig. 1;) a sin'iilarsection on line ill -13 m. Fig. 16; Fig. i la vertical section on. line the free end of the perspective, View of gearing, racks and assohorizontal section on line 17--17 of Fig. 16;

Fig.1:2. The drawings illustrate the. feedinga sewing machine of the character fnllv de scribed and illustrated in the aforesaid original application of Which'the present is a division. I Enough of said complete machine has been shown hereinto afiord a clear understanding of the positioning and operawith relation to neighboringvancl associated machine comprises two hollow standards 40 and 41 connected a hollow bridge {12. preferably formed in one casting. 7 The standard 41'i s' shown'only in Fig. 1: only a small portion of the bridge 42 is shown in Fig. 2; the standard 40 appears in a number Work-arm extends forward from the upper zontal part 50, and from the ontcrendof the latter a part 51 depends vertically.

ably a continuation or eXtcnsion of the hollow-standard Q0. being cast integrally therewith and'as a part of the single main casting which also embraces the bridge 42 and the standard ll. A lower horizontal part extends from thelowcr and of part 51 toward the left and rearward (Figs. 1 and 2), terminating at its free end-'-\i'hichcon arm--beneath an overhanging portion of the head of the machine, from which latter the presser foot 220 (Fig. 1) depends. As ill'nstratedp'art. 53 of the work-a rm is p'retcrahl y a trough-like casting secured to part 5! by screws 54. 55 and To facilitate the as- 'sembling of the-partsand to afloi-daccess pairs. there is provided an opening in. the

1 top of the part of the Work-arm closed by I 149-14 of Figs. lama 17; Fi ..15'is a damn ciatedparts of Fig.13; Fig. 16 is a vertical section on line 16-16131? Fig. 17'; Fig. 17 is a and Fig. 15 is an elevation from the left of mechanism of thisinvention as embodied in tion of the parts of the feeding mechanislnparts of the machine; Thefralnework of the i of the figures of the drawings. A hollow end of the standard 40 in an upper hor1- stitutcs the free end of the entire work-.

thereto for inspection. adjustment and rc- These parts 50 and 5 l arc. as shown. pretcrthe cover 59 (omitted in Fig. 2, but shown in Fig. 3) an opening at the front of. part 74 for closing the trough-like part 53 of the work-arm from the throat-plate 66 to part- 51. A lip 7 5 at one end of the cover 7 4 en- 1 gages an undercut notch in plate 66, and a spring-actuated bolt-latch 78 at its other .end has a conical point adapted to seat 111' a shallow conical depression in the wall of part 51 of the worl(arm.- v Inthe feeding-mechanism of the present invention two separate feed devices or surfaces are given relatively difierentwmovements, for purposes more fully explained hereafter.

The embodiment of the invention shown in Figs. 1- to l0\inc lusive will'first be described in detail.

Referring particularly to Figs. 2' and 3,

310 is a pitman fulcrumed on a pin 311, and.

also movable longitudinally on said pin through the intermediary of bearing-blocks 312'working in a capped opening of the pitman. The inner end ,of pin 311 is secured in a socket in'a wall-or flange 174 by a set,

screw 313. A capped bearing at the inner end of pitman 310 embraces crank 90 of main shaft 81. A capped hearing at the outer end of the pitman embraces a spherical bearing 314 of a coupling device through which motion is transmitted to a vertical lever 315 extending longitudinally withinthe part 51 of the work-arm. The coupling referred to (see also Fig.2) comprises 'a sleeve 316 embracing and vertically movable on ashort shaft 31! extending through an opening in the top wall of the part 50 of the worlnarm, its lower end being fixed by a set screw 318 in a socket in the lower wall of said part of the arm, as clearly shown in Fig. 3. 'An upwardly projectingflange 319 around said s'ocket forms a cup forlu bricant'which lubricates the contacting surfaces of the lower end of sleeve 316 and the shaft 317. The upper end of shafil'317 is hollow, and from the lowerend of the hollowed portion a passage 320 j-leads to the surface of the shaft, its outerj-end being preferably closed with a leather plugnot shown. The hollowportion'of the shaft is preferably filled with a fibrous material, such as .waste, held-in position by a plug 321at the outerend of the "shaft, said plug haying a central opening through which counter-sinking the latter.

lubricant may be introduced to saturate the" fibrous material. Sleeve 316 has twoshort arms projecting therefrom at an angle of approximately 115 with relation to each other, the arm 322 consisting of a part cast integral with the sleeve and a pm 323 screwthreaded into said part and at its outer end slidably engaging in an opening through the spherical bearing 314 heretofore mentioned. The other short arm 324 on the sleeve also comprises a part cast integralwith the sleeve and a pin 325 screw-threaded into a socket in said part and at its outer end slidably engaging in an opening through a spherical bearing 326; The latter is embraced by a capped bearing at the upper end of the lever 315. From the construction thus described, it will be readily understood that the slightly {elliptical motion imparted to the outer end of pitman 310 acts upon the arm 322 ig. 2) of the coupling, causing the outer end of said arm to describe a similar slightlyelliptical movement, during which the pin 323 has slight longitudinal movement in the-opening in the spherical bearing 314, and the sleeve 316 slides up and down on the shaft 317. This ellipticalmovement of arm 322 is approximated in Fig. 2 by the ellipse marked a, the major axis of which, equal to the line 1), represents the distance of movement in a horizontal direction, while the minor axis, equal to line 0, represents the distance of movement in a vertical direction. The .arm 324 of the coupling, which acts upon the upper end of the lever 315 (Fig. 3), describes an elliptical movement approximated in Fig. 2, by ellipse d, the major axis of which, equal to line e, represents the distance of horizontal movement imparted to the outer end of arm 324-, and the minor axis of which, equal to line f, represents the distance of vertical movement. It will be seen that the minor axes of both ellipses, equal tolinesf and e, are of equal length, corresponding to the vertical sliding movement of thecouplin'g on the shaft 317. On the other hand, the major axis, equalto line b, is longer than the major axis equal to line 6, due to the fact that'arm 324 is relatively shorter than the arm 322. The lever 315 is fulcrumed -to turn on the inner reduced end of the stem of a milled thumbwheel 327. The stem of saidwheel passes through a slot 328 in the front wall .of the part 51 of the work-arm, and has there'on'a flange 329 which bears against a shoulder around said opening formed by The stem of thumb-wheel 327 has a screw-threaded portion engaging'a clamping nut or plate 330 (Fi s. 3 4 and 5), a part of said nut exten ing 'into'the slot 328, as shown in Fig.

, 4 3, in orderto prevent the nut from turning with the stem? Through the intermediary. of two bearing 331 embracing the .re

ing opening three parallel slots throat-plate 66 (see pm'ticularly Figi 11);) I v 'sc e veth eaded portion, at the stem of: the

and working in an elongatedcapped beer.-

.in --the'leve1' 315, the latter is: longitudinally during its" rock- I ing movement abo'xitiitsv fulcrum. At its lower extremity this levenjs piioted tolthe upw'a i'dl'y bent endv oif-"aliorizontal feed lever free to in ove this pivot consisting ofe 'scre 1333, the threaded end of which engages thelever 332 and the headed ,e nd ot which engages i111 opening through the leven315, its learly shown 1nF1gs ;8 andfll. "The feed lever extends longitudinallywithin the horizontal l part of the wotk itrln,endneer its end is ,tulcrumed'to turn and, move longitudb; nully upon a pivot setsQ-rew 335; Sfa'ndlllyis adeptedto' seat in a notch-"336 1% one end o li't'ulcnum pin 33% to securethe letter in place A deeper notch near the' other end ot the pin registers with the lDflgltlldlIltU thread channel 298 so as 'not'fto obstruct the pas sage of the-four lOOPQP-tllIEtltlS. TYwOlbQfll ing bloelzs 338 embrace the fulcrum and are-in turii'einhi'aced by an elongated cupped hearing ope1'1ing'339inthe lever 340 A feed surface .comp1-is ing' three pin-'- ullel rows of teethfadapte'd t0 Wofk through I. 3&1 respectively, in the.

.whion are positioned in front' oflthe' needlo opening 372 and the chaining-fingeiplate 3T0. (The shank 342 of feed a roove 2M3 (see-Fig 6) 1n its. u'ndensur' f "the end of lever 332 'tohold the feed surface nun" he the hearing a screw 345 serv- Through.

uguii1.--.t inter-11 nioven'ient, ingto secure the pmrtstogether. the connections explained the feed 3&0 is given what-is known l ou'r-inotion fced desc 'ihing u circle-or lipee. or What is known as the throwof the feed, edjusted to increase QI' decrease-the loosening the thumb wheel 32-? thee-Jule, itsstem and upward to increase me by t 3}, and moving blocks 331,

ward to deei-euse'the same;

Thegfeerl thus hated the tull'ing' far described niuybe desi'grj teed inasmuch the 'feedsurface 340 operates in advance of the than the stitch-feed, acts to fullthe mate'- point otformution of the stitches and by, being adjusted to have greate1 movement with the object of. gre seiiit ing'the material (particularly suchas relatively flexible knit-goods) to the-action of the unstretched condition needles in an i and thereby avmdmg formation of the rial at this point,

stitches on tlae uheterizil .when in a stretched w ll, of course, fulling feed such condition. be understood thut when a new;

in excess of that ef. the utter, in

tulling of the material in' advance oi the needles.

, hich latter extends the horizontal port 53 of the Work-arm par- Inte-i'inediate to turn of the stem of shank of pim334,Figs. 6',"7';j 8' and 1]., which is support-ed in openingslthi'ough the side walls of tli'eypzprt 53 ofthel'arm.) A' of-its ends the lever is fulci'uined on the reduced" end screw 35% (Figs; 3. and u longitudinally movable onil-s fulcrum I capped bearing slot 856 pin 33% heating surface 340 he's qvhieh like the: nut V in'g into;v the inner face embracing rib 3&1 (Figs. Gland '11) oni I l tightening theserew to draw the nut against the'inneneurfeee of the wellot the arm-at the screw, is secured in surface in the art a so-1 el-- The extent offthis feed movement,

blocks 35? en'ihi'ucin 'q in slotsBGU, 361 and throat-plate. The shank 363 hose. longitudinal groove in its'under surface fitting over .as described is used, itlqfnust oedfiusted with relation tothe stitch feed to have feed stroke oi'der'to insurea proper The feed which advances the vork to deter Q in'e the length of the stitches will now he described.

35O,'F1gsl 3' and w v e 53 en eunilie y lever. pivoted at tsiupper p'i'votetl scre'vvpivot 35,2 (similar to screw I p1vot333,f heretofore described) to the-.jup-Wa-rdly bent [end of a feed level" 353; 1

longitudinally ithin .illelto' the feed lever 332.

The lever 350 is through-the:intetmediery of two hea ing blocks 355 embracing the plV'OtBIltt off the screw and located Fin-en elongated in the lever 350.

The stein etc-shank oi the sei'ew iifrl passes,

through a, vertical slot 366 {Fig. 3) in-the 1-ear wall oitheverticel part 51 of the wor engegingY-the 1 or sh onlder formed-,- aitound theeslotlby' the counter-sinking." A

arm, the edthe sere vv counter-sunk outerportion of egalnst an oiiset said. slot.v and fe vent tliehut turning Withthe screw. 1

the sides of the slot ,id of theuslot to enyfl position' -to.which. it may be adjusted.

"The horizontal feed lGvQl' (like feed lever 33-2) isfulcruined t'oiturn on pivotpin 7, 8 and. 11), end-also to move (Figs.

longitudinally with refie'rencc to "said in through the; '1

the pin and Working m eeppedbean'ng openlng. 358 of the lever 359 is the stitchfeed stlfface, divided-into three parallel rows of teeth adopted to, Work 362', respectively, of the rib 36st (F ig.f.ll1l ion the end oflever when they" aI-i'e f se'euredjtogether by the fFi-oin' the ,lconst 'uetion desei 'ibed, it will be understood that fulcrum; causing its lower en elligticel movement; which, isin tui n parted-to theupwerdly bent end of the EMF) tex'inediniy of two hearing;

the auxiliary lever 350 v t-leve'r Thismovement oftheietg,

tol'prevent' lateral move'mentof the parts 12s is i otatQd and moved longitudinally on its end {to descr be 1 ter lever transmits to its forward end, tog;

which the stitch feed surface 359 is attached; a circular or elliptical movement the outline of which depends upon the location of fulcrum pin 334 and of the fulcrum "pin 354 oflever 350. During a portion of the/movement thus. imparted to the feed surface 359, its teeth are projected through the slots 360, 361 and 362, engage the, under side of the work, and advance the same to determine the length of the stitches. This length of the stitches may be varied by adjusting the screw pivot 354 vertically in-its slot 366, thus changing the location of the fulcrum of'lever 350; moving the screw pivot 354 downward in Fig. 3, thus bringing the fulcrum' nearer the lower end of lever 350, will correspondingly reduce the movement of the feed surface 359 and correspondingly shorten the stitches.

As shown in Fig. 7, the two horizontal feed levers 332 and 353, pass through a recess in a circular block 418 (Fig. 9) which fits in curved recesses 416 and 417 (Fig. 8) in the innersurfaces of the side walls of the work-arm. Screws 419 and 420 secure block 418 in place. Beneath the block 418, also in recesses 416 and 417 is a cylindrical block 413 (Figs. 7 and 10) which is rotatable in its seat and constitutes a-fulcrum for the looper bar 375 which extends through the recess of. said block 413. In Figs. 12'to 18 inclusive of the drawings, Sheets 68, there is illustrated a construction which includes means for vertically. moving the fulcrum of the vertical feed'levers in adjusting their positions to vary the throw of the feed-members, the parts illustrated in said figures being other-. wise substantially like corresponding parts heretofore described. The vertical levers 745 and 746 correspond to the levers 315 and 350 previously described. The head of a screw 747 is movable in the countersunk outer end of a vertical slot 748 in the wall of the vertical portion of the work-arm. The shank of this screw passes through slot 748, is screw-threaded through an opening in a raclcplate 749, and has a reduced inner end constituting the fulcrum for lever 745. A similar screw 750 passes through a counter-sunk vertical slot 751 in the opposite wallof the work-arm, is screw-threaded through a rack-plate 752, and has a reduced inner end constituting a fulcrum for lever 746. By tightening screws 747- and 750, they draw rack-plates 749 and .752

tightly against the inner surfaces of the wall. of the work-arm rigidly fixing the positions of the fulcrums the rock-plates thus also serving as clamping plates or nuts. When the screwsare loosened the rackplates may be moved vertically in their sliderways carrying with them the screws to change the'positions of the fulcrums.-

The means for moving the rack plates will now be explained.

753 is a block secured within the vertical part of the work-arm to its rear wall by screws 754', 755 (Fig. 1-3) A shaft 756,

.journaled in an opening through the block carries at one end a pinion 757 which meshes with rack-teeth along one edge of rack-plate 752. A second shaft 7 58, also journaled in an opening through block 7 53, carries at one end a pinion 7 59 meshmg with raclcteeth along one edge of rack-plate 749.

to correspondingly adjust the positions of the fulcrums carried by said plates. Rotation of wheel 761 adjuststhe falling-feed, and of .wheel 760 the stitch-feed. Theface of each wheel is marked about its periphery with a scale (Fig. 18), the divisions of which aremarked bynumerals and serve as guides in adjusting the mechanism. Thus setting wheel 7 60 to its 2 mark and wheel .761 to its 4 mark, preferably effects a relative adjustment which gives to the fulling-feed a feeding movement twice the distance of the feeding movement of the stitchfeed, and so on. i

What I claim is: l l

1. In a sewing machine, the combination of stitch-forming elements, a work-arm extending outward from the frame-work or casing of the machine in an upper approxi mately horizontal part, thence depending in an approximately vertical part, and thence continuing in a lower approximately horizontal partto its free end at which said stitch-forming elements operate, a feedmember operating at said free end of the work-arm, and driving connections for said feed-member extending along the work-arm from the frame or casing of the machine and including a lever extending; along the approximately vertical part of the arm and having its fulcrum adjustable to different positions to vary thethrow or feeding move- -ment of the feed-member.

work-arm, and driving connections for said feed members extending within the workarm from said frame-work or casing and 1nmoveme'ntof its corresponding feeof stitch-forming. elements, a hollow I" arm extending outward. from the frame work-or casing of the machine in an np iear 1 a feedmiemher operatin' of the-work arm, and riving connections member.

'cluding two l vers corresponding to said feedmiembers respectively, each lever having a fulcrum pin adjustable to different positions in an ipeni g in the wel t' the work-arm to ry the throw or i 3. In a sewing machine, the o.=-.

approximately horizontal part, thence depending in an approximately vertical part, and thence continuing in" a loi'rer approximately horizontal part to its free end at which sa d stitchform-ing elements operate at said free end for said feedmember extending through saidhollow work-arm from the frame or casingof the machine and inclndinga lever; in the approximately vertical part of the arlnhm ing a fulcrum pin adjustable to dif -fe'rent positions in an openin in the wall of the work-arm to vary the throw or feedling-movement of said feed-member.

4. no sewing. machine, the combination of's"tell-formingelements, a hollow Work-- llIlll extending outward from the .gfl'al'lle- 1 work or casln of the mnclnne 1n an upper approximately iorizontal part, thence depend- -1ng in an approximately vertical'pert, and thence. continuing in a lower approxlniately horizontal part to its free end zit-which said stitch forming elements operate, two feedrnqmbers operating at said free end of the "work-arm,- anddrlvingconnections for said.

feed-members extending through said hol lowwork-arm from the frame or casing of r the machin'ej and including twolevers in the till approximately vertical part of the arm cor- Wall of the work-arm to vary the throw or f-feeding-movement of its corresponding feed '5; In' a sewing machine th e combination of stitch-formlng elements, a Workerm free at one end at which the stitch-forming elements operate and supported from its other end wliichjoins the frame-worlt or casing of the machine, t\vo"feed.-memb.ers operating at the free-end of the work-arm, driving connections extending alon the work-arm to one feed-member, and .ot er'driving connections extending along the work-arm to the' other feed-member and adjustable to dr ving lever connected qt one en to one of said teed-levers; an auxiliary-driving lever f of two fee ending to the feed-members respectively eachhaving a fulcrum pin adjustable "to different ,posltionsv in an opening in the Wall of the casing.

10. The combination with an inclosing at it driving lover: a, (hi-n connections from driving lever.

7. In a re diiierent positions to vary the throw or feeding increment oi its corresponding feed-' meinbe-L'said main driving lever being connected at one end to one of said feed-levers, and said auxiliary driving .iever being con nected at one end to it, other of said feedlevers' and at its other end pivoted to the main driving lever; driving shaft; and driving conziectionsfrom said shaftto the main driving lever. -8. The combination of 1 w ers; an inclosin Wall or casingtherefor, two rackplates within said casing; a fulcrum pin for each lever said pins being carried by the raclcplaies respectively; two shafts supported in hearings wi '11 the casing; and a pinion on each shaft; said pinions engaging" the teeth of the rack plates-respectively whereby rotation. of the shafts shifts or adjusts the. position otthe fulcrinnpins with relation to their levers. v 9. The'com'binatio'n of ti-vo levers; an inclosing wall or 'cas' therefor; two rack-- pleteswithin said casing; a fulcrum in for each lever, said pins being carried rackplates respectively; two shafts supported inbearings within the casing; a pinion on each shafh said pinion's engagin the teeth of the rack-plates respectively, iv iereby'rotation of the shafts shifts or adjusts the position ofthe fulcrum pins with relaone end of each, shaft rotatable in closely positioned circular .open1ngs through the casing; two rackplates movable respectively in gulde-ways on the lnner faces of opposing Walls ofthe casing; two approxiii'lately parallel lever living between said rack 'plates; u fulcrum in carried by and projecting in- W'ard from each rack-plate, said pins engag ing the levers respectively; a pinion engaging encl'i'rack-plete; and means for rotating said pinions to shifhthc positions of the fulcrum ins w'ith releti'onto their levers.

11. he comb nation of 9. ever; ceasing wall having a slot therein; a, stem passing Ali-rough said slot having an enlargement .nt

outer end bearing against the outer surface of the casing; Wnlh at the sides of the slot, the inner end of said stem constituting the fnlcruin of the lever; and a clamping each having a fulcrum pin adjnstahlc to y the tion' to their levers; and a Wheel-or head on licences plate or nut through which the stem is specification in the presence of two subscreu -t-hreaded and which is adapted by the turning of said stem to be drawn tightly against the inner surface of the casing Well scribing witnesses.

ARTHUR A. MERRITT.

5 at the side of the slotto fix the stud in any "Witnesses:

position of its adjustment inthe s1ot.. W. B. KERKAM,

In testimony whereof I have signed this F. A. I'IOLTON..

Copies of this patent may be obtained for Correction in Letters Patent No. 1,041,658.

five cents eachQby addressing the Commissioner of Patents, 'Wasl 'ington, 1).0. I

It is hereby certified that in Letters Patent No. 1,041,658, granted October 15, i912, upon the application of Arthur A. Merritt, of Vere-ester, Massachusetts, for an improvement in Feeding Mechanis n tor Sewing-Machines, an error appears in the printed specification requiring correction as follows: Rage 4, line 60, for the compound WOld rock-plate read Tack-plate; and that the said Letters Patent should be read with this correction therein that the same may conform to the record ofthe case in the Patent Office.

Signed and sealed this 26th day of November, A. D., 1912.

C. C. BILLINGS,

[SEAL] Acting Commissioner of Patents.

licences plate or nut through which the stem is specification in the presence of two subscreu -t-hreaded and which is adapted by the turning of said stem to be drawn tightly against the inner surface of the casing Well scribing witnesses.

ARTHUR A. MERRITT.

5 at the side of the slotto fix the stud in any "Witnesses:

position of its adjustment inthe s1ot.. W. B. KERKAM,

In testimony whereof I have signed this F. A. I'IOLTON..

Copies of this patent may be obtained for Correction in Letters Patent No. 1,041,658.

five cents eachQby addressing the Commissioner of Patents, 'Wasl 'ington, 1).0. I

It is hereby certified that in Letters Patent No. 1,041,658, granted October 15, i912, upon the application of Arthur A. Merritt, of Vere-ester, Massachusetts, for an improvement in Feeding Mechanis n tor Sewing-Machines, an error appears in the printed specification requiring correction as follows: Rage 4, line 60, for the compound WOld rock-plate read Tack-plate; and that the said Letters Patent should be read with this correction therein that the same may conform to the record ofthe case in the Patent Office.

Signed and sealed this 26th day of November, A. D., 1912.

C. C. BILLINGS,

[SEAL] Acting Commissioner of Patents.

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