US1789249A - Sewing machine - Google Patents

Description

Jan. 13, 1931. J. R. MOFFATT ET AL SEWING MACHINE s Sheets-Sheet 1 Y File'd June 4, 1926 Jan. 13, 1931. J. R. MOFF-ATT ET AL 1,789,249

SEWING MACHINE I Filed June 4,192 6 Sheets-Sheet 2 Jan. 13, 1931. j. R. MOFFATT ET AL SEWING MACHINE Filed June 4, 192 6 Sheets-sheet 3 Jan. 13, 1 931. MOFFATT ET AL 1,789,249

SEWING MACHINE Y Filed June 4, 192 6 Sheets-Sheet 4 Jan. 13, 1931. J. R. MOFEATT ET AL 1,789,249

SEWING MACHINE Filed June 4, 192 6 Sheets-Sheet 5 Jan- 1931- .1. R. MOFFATT ET AL 1,739,249

SEWING MACHINE Filed June 4, 1926,

6 Sheets-Sheet 6 NMW kfi New Patented Jan. 13,1931

JILBIES a. Morr'ATrfo-r emoneo, hiniBALrii-s; IK-ELSO," OF noexronnfrii-Lmors AS sienons To Union SPECIAL imon nnoorarnny, or ICAGQ;iLLI1g0is,*A coRi3o- RATION F ILLINOiS a SEWING'MAGEINE 7 Application filed :J'u ne 4,. 1926. -Sei*ial*No. 113,714. I

The invention -relatesfto new-and useful improvements in sewing machines, and more particularly to a sewing machine having av worl; supporting arm and a feedlng-mecha-jj insm arranged therein whereby tubular aroff from the end of said arm;

An object of the invention is :to' provide a machine of the above :type with an overhanging arm in the form ofa hollow hous- 111g in which is located a rock shaft-for operating the needle bar a rock shaft for acv tuating the thread laying. finger and the trimming devices, and a rock shaft which may be oscillated for lifting the presser bar. A further object ofithe invention is to provide amaohine of the above type wherein said overhanging armis provided with: a hollow head on the free-end thereof,v vin adjusted in a horizontal direction either lengthwise or transverselyof the arm for positioningthe needles 'relative to the-throat plate on the work supporting-arm. v v

A further object of the 1 invention is toprovide a machine of the above type whereing arm maybe adjusted bodily, {either lengthwiseor transversely thereofffor posi; plate relative to the 40 tioning the throat needles.

A further object of the. invention is to provide a machineoftheabove type wherein the meanssfor liftingthef presser bar and is likewise located in the trimming devices said hollow head; V v Y A further object of theinvention is to 7 provide a machineofthe above :typewhere in the main shaft is located in a hollow =housing disposed in front of the bracket on which ticles maybe formedgand stitched and fed overhangin which the greater portiqnuof the actuating in the work supportingrarm, extends across the post for supporting the same and ols soconnected to the post that the worksuplporta theoverhangingarm is mounted, and on which hollow. housing is mounted the post v rrying the wo k supp rting a m, and whereln aninchned hous ng ojms the hollow housing carrying the main vshaft with-- .the

bracket and the overhangingapmso'that'the devices for actuating tll8f IfQQk$hQgfiiS in the inclined housing.

A still further obj ect of the to provide a machine of the above type wherein the lower wall of the overhanging armadjacent the bracket is inclined ,do w-ri wardly andleads in to the lower Wall .of the -lnclined hou'si ng, so that jany-oilrdr ipping from thebearings in the overhanging arm, will ;drain from the-overhanging arm 7 into thejinelined housing and thus to :the

hollow housing containmg1the main driving 7 shaft. 1

' A still further object of theliiivention to provide a Iinaol1ineoftl1eahove'gtype wherein the lower wall of the worksupport, i-ng arm inclines toward the supporting post carrying the same and a channel is provided extending from said post along the bottom portion of said hollow ;i11en1-ber carrying the driving shaft sothatoil dripping frame-he bearings for the main shaft and the looper shaft will drain hack into ;the hollow house ing for the main shaft,"and toa point ad:-

jacent where the oiljaccumulates from'the overhanging arm.

- A till furtheriobject. of the'zinvention :is

to providea machine of 'itllS'ELlOOVQ type wherein the tension devices forithe various threads are mounted vertica'llyone abovethe other and in substantially the same vertical invention is g arm ay be rra ge uin said;

plane as the stationary thread guides on the 7 arm and the movablev thread guides on the needle bar, so that the threads willlpass'in substantially the same plysto'the needle barp i r V A still further object of the invention is to providea machine of the above type wherein ;-the-means for raising the presser foot also releases the tensions, and the'te-nsion releasing devices operatefrom -bene ath each pair of tension disks.

.As -l ur herpbje t,ref-the in ntioillis.

planeflfrom the sup-.

to provide a machine of the above type Figure 1 isa front viewioffa machine embodying the improvements with the cover plate'for: the inclined housing removed;

F ig; 2 is aside view of'the machinefrom the left as viewed in Fig.1, with the cover plate forthe head on the overhanging arm removed, the cover plate for the vertical post removed, and the cap for the end of the work supporting arm removed;

, -Fig.3 is asectional view on the line 8 3 of Fig. 2; Fig.4 is asectional view on the line 4- of Fig.2; r Fig.5 is'a detail in perspective, showing the operating arms for the movable trimmer blade and the thread laying finger i h Fig. 6 is a sectional viewon the line 66 ofFig.1;" .Fig. 7 is a detail showing the bar for carrying the tension releasing devices;

Fig. 8 is: a perspective view of the shift-' able arm which engages and lifts the tension releasing bar;

7 Fig. 9 is a detail in section on the line 9-9 of Fig. 6;

Fig. 10 is a sectional View on 10-10 of Fig. 4;

F ig. 11 isa sectional view on the line 11-l1 of Fig. 10, with the pitman rods omitted;

Fig. 12 is a plan view of the work suplt-he line po g' rm. with the cover plate removed, and the looper omitted;

Fig. 13 is a view partly in longitudinal section through the work supporting arm and showing the means of'supporting said arm whereby the same may be adjusted in a horizontal plane;

Fig 14 is a detail showing the means forad usting. the stroke of the auxiliary feed sewing machine of the type 'wherein they Fig. 15, is a sectional view on the line 15-15 of Fig. 1, of the supporting'means for the thread eyes, and i Fig. 16 is a sectional View: on the line 16-16 of Fig. 10.

The invention is directed broadly to a material being stitched is formed into a tube about a worksupporting arm and is fedofi from the arm as it is stitched. A trimmingmeohanism is provided; for trimming the edges of the fabric which are to be stitched together. 7 nism includes a plurality of needles and complemental stitch forming mechanismcooperating therewith beneath the fabric and the thread laying linger cooperating therewith above the fabric, so that'the trimmed edges are joined by the united lines of stitching. The operating parts of the machine above the fabric are supported by an overhanging arm which is preferably of .sleeve form, thus forming a hollow housing.

Located in this hollow housing is a rock shaft for reciprocatlng the needle bar, a rock shaft for actuating the movable blade of the trimming mechanism and the thread finger, and a rock shaft which may be os- V cilla-te'd for lifting the Presser foot and lifting the trimming mechanism from the inaterial. -The actuating members between-these various rock shafts and the parts which are operated thereby, are, -for the most part,

The stitching mechahousedin the hollow head at the-end of the I hollow overhanging arm. Thus it is that the parts are housed and protected from dust; This overhanging 3,111113 mountedin a vertical bracket in turn mounted on'a suitablesupporting base." Projecting forwardly from the supporting bracket and attached thereto is an inclined housing, and at i the lower outer end of this inclined housing is as'leeve or cylindrical housing fointhe The main shaft s provided main shaft. 4 Wltll' a crank and' an eccentric. I The crank cooperates with a pitr-nan which is connected 3, I

to'the'shaft which operates the needle bar, and the eccentric is connected by a pitman or eccentric strap with the rock shaft which operates the thread finger and movable trimming blade.

ing shaft from the inclined portion which is attached thereto-, is a vertical post which carries the work supporting arm, and in this work supporting arm is located the feeding mechanism andthe looper mecha- At the opposite end of this cylindrical housing 'for the main drlvnism which cooperates with the needles.

The work supporting arm extends entirely across the post,fand is secured thereto by screws passingthrough openings in the arm which are of suflicient size-to permit the free end of the work supporting arm to be shifted either laterally or longitudinally of the arm. ThisiSfor the purpose of bringing about a proper alinement ofthe needles with s the throat plateon the work supporting arm. The overhanging arm extends across the top of the bracket on which it is mounted, and is connected thereto by bolts passing through openings whieh are of suflieient size so that the entire work supporting arm can.

be moved horizontally, either laterally or longitudinallyfor further aiding in positioning the needles "relative to the throatplate on the work supporting a i threads: pass from the supply tl'irougha a: SGIlQS of" tGHSlOIlS- which mounte ii one above another' in a V6I t-1CZl-ll1'n"OI-1 a: verti- (rallyarrangedsupport-therefor; There is; a plate which is movable verti'callyr on: this:

support, and this plate carries a finger lun derlying the tension disks. The upperedge of each finger is tapered sothat when raised between the 'tension disks, it separate the particular tension disks; with which it cooperates, 1 Means is; provided for. raising the plate when:- "desired,"an l, the raising meansfor' the plate also rai ses the presser foot. The inner lower surface of; the overhanging arm inclines toward the standard-or supporting'bracket therefor; so

' that the oil dropping from any of the: bear fings, in the rock; shafts will drain! toward? the bracket and drain-into the-inclined housing and run down said inclineid housinga into a'well atthelower right-hand of" the cylindrical housing containing; thermain. sha-fti There is also an oil passageso; that V the oildropping from the bearings of the looper shaft will drain back into said well.

Referring'more in detail tothe drawings the machine forming the present invention. includes a supporting base L from which rises abracket 2. Mounted on the upperend of the bracket 2' is an overhanging arm. 3-.

' This overl'ianging arm 3'" is in the formof. a.

hollow housing as clearly shown in the drawings. entirely across the top-of the bracket and? is; secured thereto by'bolts 4, 4. These boltspass through flanges formed at the top port tion of the bracket 2, and are screwed-into the under face of the overlying'por-tiouof the overhanging arm. The openings in the flanges are slightly larger'than:the'clamping bolts as shown in Fig; 4 of thedrawings; There are four of these bolts, two at the front side of thebr'acketand twoatthe rean' side thereof; By-loosening these bolts the overhanging arm-may be moved in ahori Zontal plane, eitherendwise or laterally, and this is for the purpose of positioning theneedle head relative totheend: 0t thework supporting arm, so that the needles :willpassi through the throat plate with'out striking the same. By this means,"ifthere arevany;

inaccuracies in the'construction of the parts,

ures 2'and' l2). Theopenings in thc work The overhanging arm extends supportingarm throughwhic h these bolts I pass, are; slightly larger than the; shanks: of Y the bolts; and this'permits the work support erallyat; the free end thereof; This .afl'ords additional means for properly "Sr-lifting the};

,free end of theflworksupporting; armrelat-ive;

to?- therneedle bar; and the needles carried thereby Through the- "combined" adjustments o-fthe work. supporting armi and. the overhanging: a111,. theneedley bar can be. set. sothatthe-needles wilhprioperly line. up; with: the; needle holes. in. the throat; plate.

. The presenhmachine. is particularly-adaptedi for stitchingtubnl-ar: garments. The mac terial to be stitched: is; placed; beneath; -,the pmjeicting' work: supporting arm and is;

Lip-around the armflso, that-it maybe fed along? the: arm andtofffrom thegend of. the; asit isstitchedh The material is fed ofiiifrom' the end of the; arm; by afeeding.

mechanismi which. includes. a. main. feed. dogf- 1'11 and an. auxiliary feed,-'dog112.-. The mainfeed. dog; L1 is: carried-by; a: feed .b.ar-13,' while the: auxiliary feed: dog isicarriedr by, an; aux.- iliary feed'bar 14 The; auxiliary feedi'bar is imounted onthemain feed ban and v is nalsed and: lowered therewith. This; is: accom p lished; by means. offa lever-15; pivoted at 1.6; andconnected to'theimain feedbaniby a; link 17. The lever: 15isoscillatedby anleccentric strap 18. cooperating'with an eccentricon the main shaft 7. The main shaft 7? projects into thelowerportiom ofz the vertical post: 8;: and this eccentric strap18vis located in'said post The mainzfeed' bar ismovedvback and forthwby: means, of. a link; 19? which is con; nected toiay rock. leven 20 and the; rock lever 2Ol-is connected; to an; eccentric strap; 21; which cooperates with another; eccentric on the mainshaft' 7'. This. ecce'ntrica strap 21. is; likewise locatedv in the vertical fpost. Through these two I eccentric straps 18:; and

21; the main; feed" dogis; given all} of its movements'.:. The auxiliary feed dog; is moved back and forthby. means of: a link 22' whichis attached tofa rocker 23'which in turn: is connected! to the mainfoedsbar so that: as theimain: feed ban moves back and forth, it: will oscillate the rocker-.-23;and-the rocker 23 will: move the link'.122;-$endwise.

Thisli'nk 22 isconnected toa -,pivoted &1'1115 I 24, and impacts oscillations thereto. The arm 24 is in turn: connectedi byv alink. 25 to the auxili'ary feed ba1',y and this lno'vesthe auxiliary. feed bar hack and forth The stroke of the auxilianyf feed "ban can be,

varied by shifting the connectionkof the link 22to the rocker 23; There is. a slot 26 in the rocker which permits theconnection of the 1ink'22 to be shiftedonthe rocken This.

is-brought about by meansofa hand lever v 27 connected to and oscillatingrardiski28.

The disk 28 carries. a pin 29 engaging; the forked end of an: arm 30. rThis" arm 30 is secured to a shaft 31,v and the, shaft 81 car ries an arm'32 connected byalink33 to :the

link22. WVhen the arm32 is oscillated .it. will raise or lower the connection of the link. 22 to the rocker. 23. I This'feeding-mech-- anism forms no'palt of the present invention,but'is shown, described and claimed in our co-pendin filed January 26, 1926.

The machine contains three needles indicated at 34 in the drawings with which-is associated the usual needle guard. Coop crating with these threeneedles beneath they work support is a single looper 35. The

looper 35 is mounted on a looper'shaft 36 which extends lengthwise ofthe work sup-v orting arm 9 and is mounted in suitable earing's formed therein. This looper shaftis oscillated and is moved endwise by means of a link-37 whichcooperates with a crank 38 on' the main shaft 7 This link 37is pivotallyconnected to an arm 39 mounted in anoscillating bracket 10, so that the upper end .of the link moves in an elliptical path,

\ and therefore, the loopershaft is not only oscillated but moved .endwise. V

' The bottom surface 4L1 ofthe work supporting arm inclines downwardly toward the right as viewed in Fig.13, and any oil dripping from the bearings for the looper, will drain to the rightand run'into the vertical post. The oil accumulating at the bottom of the post 8 will run through the passage 42 and along the channel 13 at the bottom of the cylindrical housing 6 andaccumulate at the right-hand end thereof;

The main shaft is driven by :a belt wheel 44. On this main shaft'is alooper thread.

take-up mechanism 45Jand a looper thread pull-off mechanism 4C6, which is not described in detail, as it forms no part of the present invention. The looper thread passes through a channel 17', thencei'to the thread eyes associated with the pull-off,

thence to the nipper 4:8, and thence to the. thread eyes associatedwith the take-up for The thread after leaving the looper thread. the take-up passes through the channel 49 which-leads to the channel 50 and thence along the channel 51 to the looper.

work supporting arm has a cover plate 552' The arm: is to expose the bolts l0 when the cover plate isyremoved. This provides. means whereby the bolts 10 are readily made ac cessible for adjusting the position of the,

work supporting arm.

The needles 3% are mounted on a needle bar 53. This needle bar. is mounted to repplication Serial No. 83,914,.

ciprocate in the needle head at the. free end of the overhangingarm 3; The overhang ing arm 3 is hollow, as above noted, andportion ofrthe needle' headfor-the needle bar. Theneedle bar ,in its, reciprocation's does not pass above the top bearing 54 so that the needle barat the upper portion thereof is continually housed, Within the hollow head. Extending lengthwise of the overhanging arm 3 is a rock shaft 56. Said rock shaft is mounted in the bearings 57, 58' and 59, all of which are formed as a part of the overhanging arm. This permits the overhanging arm to be bodily shifted after the manner 7. above described without creat-I ing anybind on the rock shaft 56 This rock shaft 56 is provided with an arm 60,

which carries a ball stud at its lower end 61. A'pitman 62 is connected to the ball stud at its upper end and is connected to a crank 63 at its lower end, which crank is formed as'a part of the mainshaft 7. As the mainshaft rotates, the crank through this pitman 62 will oscillatethe rock shaft 56. On the/outer end of the rock shaft 56 there is anarm 64. This arm 64 (see Fig ures2land 3) is connected by means of a link 65 to a lug formed as a partof a sleeve 66 which in turn is clamped to the needle bar. 'As' the rock shaft oscillates, it will oscillatethe arm 64, and this will reciprocate the needle bar.

The material isheld onthe work support by a. presser foot 67. The presser foot 67 iscarried by a presser bar 68. The presser bar 68 is mounted in the bearings 69 and 70 at theupperv and lower ends, respectively, of the needle head. Mounted on the presser baris a collar which is provided with a forked arm 71, and-this forked arm 71 straddles a guide bar '72 which is mounted in the bearing 7 0. The guide bar isstationary and the forked arm 71 moves up. and down 'thereon.'- The purpose of the guide baris to cooperate with the presser bar in preventing the presser foot from turning laterally. This is essential in view of the fact that the trimmingmechanism which-will b 1 described later, includes a stationary trimming-blade mounted on the presser foot. The presser bar is raised by means ;of a-rock shaft 78 which ismounted in suitable bearings in the overhanging arm and is provided with a collar 74 at its inner end. Said'collar is in turn provided with an arm 75 which projects through a slot 76 in the cover plate 77 secured to th rear side of the overhanging arm.. A' spring .78encircles the. rock shaft 7 3, .and engages.

the .arm '75 and normally holds the arm shearing relation with tween the upper end raised to the upper end of the 5sl0t76,:said upper' en'd of the slot servingas :a stop to limit the movement of the :arm 75. The presser bar*68is' moved downwardly until .the presserfootengages the material by-a leaf spring 79. 'This leaf on the upper face of a lugformedas a part of a sleeves .which is rigidlyseoured ,to the presser bar 68., Thes'leaf'spring at its rear end bears on a fulcrum support 8l.and is :put vunder tension by an ,adjustable screw 82; On the end of the rock shaft 73 there is an arm 83wwhich underlies-the lug on thesleev'eSOQ When the operatorodepresses thearm 75,it will oscillatethe shaftf73 and liftthe arm 83 'intoyengagement with this lug :which is attached to ;the presser bar, and=thus the presser'foot-.canfbelifted from thezmaterialt The trimming-mechanism which trims the fabric and thus "prepares the ledges of the fabric for the stitching gmechanism consists of a stationary trimming blade 81* which is mounted on a zpresser foot, and a movable trimming fixedfto the lower end of a yoke 87. The yoke .8711STII1011I11E6Cl'0I1 the ,presser bar :68 so that-it :may' osei-llate freely on the presserbar. .o .Theyoke ismoved downwardlyron-"the presser bar-so, *as to bring the movable trimming blade into the stationary :triinming blade by La springjj88 which liesjbejof the yoke and a collar 89 secured'to the presser bar. VThis provides a means whereby ,the movable blade will be 'yieldingly forced' against the stationary 'bl2tCle,"3[11d'2fl3 land iowered with :the-

thesamevtime, :both blades maybe raised presserufoot. 1

Cooperatingi-with the needles 3e is a thread hook hook or finger avhichis mountedonazyoke '92.; The yoke 92 isufreely mounted ;on the ,presser :bar. One arm of the yoke 92 is direc tlyaa'bovethe bearing 70, and the other -arm. of the yoke is; directly beneaththe bearingv 70. This formsv a construction wherein theyoke may yokefiis not raised and lowered with the 'presser bar. In other words, \th evpresser 7 bar slides freely in the yoke-92.

os ci-l late the shaft Mounted in the overhanging arm'niswa rock shaft 93'. V- This rock shaft -93 is provided with an arm' 94 in'i't's' inner end;

At the 'lower end of thesarm .94-is a hall 9.6

and at its lower end cooperates with Ian main shaft rotates, it will or eccentric stra move the pitman p 96}endwise, and this will 93-. Said-shaft -93zhas a spring 79 hears V "trimminggbllade is bladek Which is ca-r lint.

on the presser bar, but the and "may I=be dra-ivn on the-outerend of thearm 99, there is-a link 101. This link 101 is connected at its other end, to a ball stud 102 carried by an arm 103 formed integral with the yoke 87. Said head 9 8 is provided with a depending arm 104, andthis depending arm 10dis-connected to a link 105, connected toa. ball stud i106 carried by the yoke 92, which -h00k 90. The l .c epending arm 104 passes through a slotin the lower supports and operates the thread finger or a 7 and th l nk-1051s n turn part, of the overhanging arm. It will be noted that all of the mechanism between the rock shaft-456 and the needle bar is housed within the head at the 'lldf /Qfvtlle overhanging arm. thatquite a nism for the hook and also for themovable likewise, housed within this hollow Ahead. Thusit that the moving Furthermore, by said arrangement of parts, the region :where the I stitches .are formed, and thertrimming takes place, is comparatively free from obstruetion and open to view by; the operator ofyrthe machine; The means carried at the ,needle head for 1 operating the f thread ;laying and the trimming devices form no -pa'rt of ,the present invention, but are shown, described and claimed in our co pendinggapplication, Serial N o.a242,118, .filed December 23, 1927. The bottom portion or what might :be

termed the floor .107 of the overhanging the housing. lhus it is that the oil :dropping from the bearings, both; infthe loverhanging .;arm and in the work supporting arm, and" the .bearings in the cylindrical housing for the main shaft, willaccumulate at the lower right-hand end of this cylindricalhousing for the main driving shaft, through the port 108atrsuitable intervals.

v 1 Both-gthe eccentric strap and the pitman areofpeculiar construction..' -This is clear-: ly shown Ein ig. -16, which is a" jcross sectional' view of 1 of these parts: The parts are similar in constructions, -l-E'ach'member is formed so'that It is sol1d,-';and-V1-sprovided with longitudinal ribs. The} longitudinal ribs 1 are arranged ninety degrees apart, and are Ofgreater radial extentfin the-central portion of the. strap or zpitman; This makes a very;durable constructionaofeperatingpitman which isvery lightand It 'wil-l: also '.be noted portion of the actuating -mecha" parts are protected from dust and,

downwardly so that any oil dripping from .yet ry s on hanging arm cates with-the needle ba r.

The housing 5 and the bracket 2; are preferably cast integral. The covering plate 77 for the overhanging arm aids in the assembling of the pitmans or eccentric strap. The cover plate 109 is for the'purposeof covering an opening in the end of the overwhi'ch facilitates the placing of the rock shafts in their bearings, and a cover plate 110 at the upper face of the overhanging arm aids in giving access to the parts which connectthe pitman and the eccentric strap to the-rock shafts. A cover plate 111 covers an opening in the inclined housing 5 which gives access to the crank and the eccentric onthe main shaft and also aids in the assembling of the eccentric strap and the pitmam The threads for the 'machine are led through thread guides formed in a bracket 112. 7 As illustrated in the drawings,'there are five threads, one for each of the needles, one for the looper, and one forthe'thread laying finger or'hook. The bracket 112, therefore, has five thread eyes, :threadeyes'are located one above the other in a verticalline. Mounted en the-frontof the overhanging arm 3 is, a supporting bracket 113. Fixed to this :supporting bracket 113 are five'tension posts, each of which is supplied with a pair of tension disks and spring tension means which may be of the usual construction. The bracket 113 is pr'ovided with thread eyes indicated at 114, arranged-one above" the other, through whic the threads pass after leaving the thread" eyes in the bracket 112. There is one thread eye 114 for each pair of tension disks, andthese thread eyes are located slightly'belowthe respective tension disks 'withwhich they are associated. Directly opposite the thread eyes 114 is a series of thread eyes 115, one for each thread. It will be noted that the thread passes through the thread'eye 114, then up wardly and between the tension disks, and

thence downwardly and through the thread eye115; By this arrangement of thread eyes and tension disks, gravity w'll aid in holding the thread between the tension disks, even after the tension disks are separated to release the tension on the thread. The three needle threads after leaving the thread eyes 115, pass through thread eyes-116'inan arm 117," and thence through thread eyes 118 in an arm 119 which is secured to andrecipro- 1 The arm 119 is adjustably securedjtothe sleeve 6 6,jwhich is fixed to the needle bar. The arm 117 is adjustably secured in a sleeve 120 which in turn is carried by an arm-f121 mounted for longitudinal adjustment in a supporting bracket 122.

the arm 117 can be adjusted vertically, shifted horizontally, and the .upper end thereof in which the threadeyes are formed,

' thread taken up may and these arm 126 will lift the plate passes through one :of the This provides means whereby 7 sleeve 120 therefor. W It is noted that the tension disks, the bracket 112, the thread eyes116, and the thread eyes 118,all lie in substantially the same vertical plane, so that the they run from the supply to the are substantially free sharply aboutco-rners. cooperate with the efiective taking up of the threads'in the setting of the stitch, and by adjusting the position ofthe thread eyes 116, the amount of be varied. Associated with the bracket 113is' a plate 123. This plateis provided with suitable openings 124,-through which tension posts extend. The plate is also provided with a series of arms :125'which are normally located directly beneath the respective tension disks. The upper edge of each arm 125 is beveled so that when the arm is moved upwardly bythe lifting of the plate 123, said arm will pass between the'tension disksand separate the tension disks so as to release the threads from tension. Inasmuch as the arms 125 are beneaththe tension disks, gravity will aid in the moving of the arms away from the tension'disks. This plate 123 is raised by means of anarm126 which projects through a slot 127 into the interior. of the overhanging arm. The arm 75 mounted on the rock shaft 73. has a portion 128 which pr ojectslbeyond-the rock shaft 73 (seeFig. 6). An extensionarm 129 is freely journaled on the shaft 7 3. andis provided'with from being bent The thread eyes 116 a slot-130, through which a-set screw passes for securing said extension arm in adjusted theforwardly projecting porpositions on tion 128 of .the arm 75. This arm 129 has a laterally projecting part 131: which is adapted to en age 6 and 9). 1 en theypresser foot is raised through the depressing of the arm 7 5, the

the arm 126 (see-Figures part 131 through its engagementwith the 123 and this will separate all of the tension disks and release the tension on'all of the threads. .Theten sion disk and the releasing. means therefor form no part-of the present invention, but are shown, described. andclaimed in our copending application, Serial No. 298,514, filed Aug. 9, 1928.

The covering-thread forthe finger or hook 84- passes through. a second, tension disk from" the bottom, andlthence through a thread eye 1325in the lower end of the arm v117. After-leaving this thread eye 132, it thread eyes 133 in an arm 134 clamped to the arm104, which actuates this threadfinger'or thread hook .84. After leaving this thread eye 133, it passes through astationarythread eye 135 carried by a rigidarm1136.

. Thefunctionand operation ofthevarious thread eyes 118 in the needle bar that said arm can be adjusted each part, and further construction 'without spirit of the invention as set forth in the heated thereto, a

end of said housing, a Work supporting arm parts of the machine have'beendescribed in connection with the detail description of description of the operation of the machine is not thought necessary. It will be understood, of course, that changes may be made in the details of departing from the appended claims;

Having thus described the invention, what we claim as new and desire to secure by Letters Patent, is I r a 1. A sewing machine including a support,

an overhanging arm extending across the upper end of said support,'means for securing said overhanging arm to said supportso horizontally, of said support and convertical member at the a housing in front extending across the end of said vertical member, and means for connecting said work supporting arm tosaid member so that said work supporting arm can be adjusted horizontally. r a r f 2. A sewing machine including asupport,

an overhanging arm extending across'the upper end of SLlCl support, means for conf necting said overhanging arm to said supsald support so t ating devices located 7 arm for reciprocatlng thev needle bar, a

port so that said overhanging arm: can be adjusted: horizontally, 'a needle bar at the outer'end of said overhanging arm, actuin said overhanging housing in front of and connected to said support, a main shaft 1nsa1 d housing, and means operated by sald main shaft for operating said actuating devices in the overhang ng arm, the connection between the o ating means for the such as to permit the of the overhanging 'arm.

peractuating dev ces belng 5. A sewing machine including incombi- I nation a support, an overhanging arm ex- I tending across the upper end of said support,

means for securing said overhanging'arm to can be adjusted horizontally V a needle bar mounted in the outer end of a said overhanging arm, a rock shaft in said overhanging arm connected to said needle bar for reciprocating the same, a housing in front ofand connected to said support, a main shaft in said housing, a pitman cone nected to said rock shaft and operated by said main shaft, said 'connectionbetween the pitman and the rock shaft beingjsuch as to permit the horizontal'adjustments of said overhanging arm.

of said arm for feeding the wise of outer end, ofsaid arm and cooperating with. the needle carried 'byzthe needle bar, means horizontal adjustments hat said overhanging arm on saidsupport,

inner under facev of said work supporting arm being inclined toward the vertical post so that oil dropping therein will drain to the bottom of said vertical post, said houslng having a'channel leading from the bottom of said vertical post to said well in which the oil accumulates, whereby the oil dropping from the actuated parts in the machine will accumulate in a central w'ell'fr'om which it may be drawn at intervals.

5. A sewing machine including. a supporting frame. including a standard", an overhanging arm extending end of for reciprocation 1n the arm, an actuating shaft mounted in said arm, devices actuated thereby for reciproeating said "needle ban said supporting frame including a vertically disposed post, a work supporting arm carried at one end thereof, a feed dog located at the outer end material lengththe arm, a looper mounted at the standard whereby the same-may be shifted' horizontally, and means work supporting arm to said post whereby the same may be shifted horizontally whereby the outerends of said overhanging arm and said work support may be shifted relative to eachother.

for securing; said In testimony whereof, we ,aflix our signatures; JAMES R. MOFFATT.

v RALPH S.

KELSO.

sewingmachine including in combinati'on, an overhanging arm, a support on arm is mounted, an inclined hous- 1 projecting forwardly therefrom, a horizontal housing of said inclined housing, the 7 ing attached to the support and at the lower end across the-upper said standard, aneedle bar mounted outer .end of said

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