US875615A

US875615A - Sewing-machine.

Info

Publication number: US875615A
Application number: US17559503A
Authority: US
Inventors: William N Parkes
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-10-03
Filing date: 1903-10-03
Publication date: 1907-12-31
Anticipated expiration: 1924-12-31

Description

N0. 8%,,615. PATENTED DEG. 31, 1907. .W. N. PARKES.

SEWING MACHINE. v APPLICATION FILED OUI.3, 1903.

'4 SHEETSSHEET 1.

N VE N 705 flkz am' $47M W10 nan].

A TTOHN Y PATENTBD DEC. 31 1907. w. N. PARKES. SEWING MACHINE.

APPLIGATION FILED OGT.3, 1903.

4 SHEETS-SHEET 2.

No. 875,615. PATENTED DEC. 31, 190?. W. N. PARKE-S. SEWING MACHINE. APPLICATION l-ILEIJ 0013,1903.

4 SHEETS-SHEET 4.

I 1 I i...

WlTNESSES WILLIAM N. PARKES, OF BROOKLYN, liEW YORK.

SEWING-mourns.

To all whom it may concern: Be it known that ,I-,-WILLIAM N. PARKES,

a citizen of the United States, residing in Brooklyn, county of Kings, and State of New York, have invented a new and useful Im-f provernent in Sewing-Machines, of which the following is a descri tion. This invention re ates to the class of sewingmachines in which a double-'chain-stitch a single source.

is-made, but is not intended to be confined exclusively to-said class, as it is evident, as will ap ear from the drawings andjspecifica- .tions, t v at it may be used for various other pu oses. 15'

e main.'object is to rovide means whereby the looper of the un er-stitch forming mechanism may be given longitudinal and lateral reciprocating movements from In sewingmachines of this class the looper is usually given a longitudinal reciprocatin movement from an eccentric or cam an 'intermcdiatemechanisinand a lateral movement from a second eccentric or cam and mtermedlate mechanism. In'other words,

T the several dilferent movements are usually Y derived from several different sources.

Inthe preferred form of my invention,--as herein disclosed, all the movements of the 'looperare derived from a single eccentric or source of power.

Another object of this invention is to pro- Vide an'auxiliary looper which is operated above the 'workfplate and which passes an 35 auxiliary cord or thread back and forth so' that it catenates and is stitched down by the needle-threads, two or more needles being used-for this pur ose and two or more loopers to cooperate wit the said needles to form the lock on the under side. Ihave so formed and located the parts this machine that it isada tedfor. a very high rate of speed. such as is desired 1n the present advanced state of manufacturing.

Anotherpbject of this 1nveiit1on is to provide --mechanism whereby this high-speed double-chain stitch machine maybe made or converted into an ornamental stitch machine which will do, :or is adapted for, various kinds of ornamental work. a

It isalso an bject 'of this invention to provide, in this c ass of sewing machines more particularly,'bi1t-'for various otherclasses as well, avery compact mechanism, "s'rm 1c in form,- which operates an auxiliary, ooper down. through the hollow presser-bar-and I Specification of Letters Patent, Application filed October 3. 1903. Serial No; 175.595.

invention.

Patented Dec. 31 19072- r- I which permits the resser-bar t s: lifted" Without in any way interfering with '4 looper mechanism or displacingitinany manner. .Z' It is a further object of this invention to provide a resser-foot especially'adapted for the production of the ornamental stitch of this machine, an d also adapted to carry or feed to the work and under the needles'ribbon or other suitable materialfor addingtothe ornamental effects which may be" pro duced by the machine, or. for stitching. said ribbon or tape tosuclrmate'rial as maybeadvantageous or necessary to prevent the stretching of the seam, or otherwise 'irnpr'ov-'j ing or ornamenting the latter. 5

t is also an object of this invention to" provide a resser-foot with an auxiliary piece or means, for guiding the ribbon, which may be readily removed and a piece of a 'difierent";

character substituted'soas to" guide broader or narrower ribbonunder the needles or be= tween the stitching of the needles? Referring to the drawings, Figurejl .is 'afrear elevation of my machine, the cloth-plate earand parts of the feed being'omitted for'c ness. Fig. 2 IS an end elevation of. the same.'- Fig. 3 is atop plan view, the goose neck or' over-hanging arm' being removed'i for' clearness. 'Fig. 4 is a sectional view on line of Fig. 3 showing the position of partswhen the loopers are approximately at-the commencement of the 00p engaging movement; J 4 1 1g. 3;) showing-the position of arts when, the loopers are approximately at t e po'into'f:

' casting ofi the needle-loop.

Fig 5 is a sectional view on the same line (4- vation of a modification of the'looper-driving mechanism. "Fig; 7 is. a top plan view-iof the'presser-foot and looper carr ed thereby;

in one position. FigQ'S 1s a'top plan viewiof f the same, in another position.) Fig. 9 ist-a; sectional view. on line 77 of Fig.-7-. Fig l0 is a side view of the resser-foot. Figs. '11 16 inclusive illustrate some of the stitches.

and ornamental effects which-can b'e pro-f duced on the machine. Fig. 17 is a sectional. .viewofone of thebearing blocks, showing. the detail of the construction permitting the. same to be lubricated; Fi 18, is a sec- 3 tional'view disclosing amo ificationinmy,

In the drawings, A, e mg' h i shaft; 2, the needle-bar drivin l e ver v partly shown; 3, thecom1ection of the machine; -1,--indica'tes thefil'iflfi; o Y

' f providedwith'means'for carrying" ablirecd c 2, lseeured; by-smearzs girl Hat loWershaft snathefn'eedle baidriving-le er; the lower end of which'is formed into a strapch embraces an eccentric .4, mounted on 'the-rear end of the driving-shaft,- 'a driving- 5 whee l5,su itabl formed to be engagedby an ordinarybelt eing mounted on the "same end of the shaft; 6,.is aneedle-bar; 7, the needle 'holderf 8, thread-guides attached to' the up er end of the needle-bar through which t e threads are led downtoand through tensionguideggand guidelO, to the needles. Thehol er 7, adapted to carry two needlesf In'a wa'yformed 1n the disk carried bythe -,fQ1"War d,end.o the driving shaft is=suitably Iand-adjustab1yseated a crank-pin which is embraced-by one end .Ofconneoti n 1-1, .the 'other end of saidconnection being connected to a iced-operating jshaft12, to which is attached-thezr ar i d of a feed-bar 13,. which .20 carries ,a, feed-dog 14-. All of this construe-.- '='ti'on-, JsQ-far- 'as described, is 'of a usual and well-lmown' e and forms no part of my invention. It-,'mconnectionwithothermechchani'sm. partly shown but: notdescribed, "-'constitutes a'-usu'al---means for reciprocating the"ne edle holder andjbariand-o erati a feed mechanism. .While I have se ected t s form of feed xnechanism. and needle-bar ac' -'tuating mechanism; for Y use'in combination 5'0 with my. invention in" order to illustrate the sa'me, 1t -is -t o beunderstood that various other vmechanism andneedle-j bar actuatihg' r'iiech'anism'ma f-be used; also it is noted suitable tension Jevices may be 5 used in combination with the threads for controlling the. sa'me'andsetting ,the stitch. It is also to'benoted-that any-suitable form of presser-bariand means for lifting same may ."be. used; In the present instance I have jsh'owna) lever 15, suitably mounted and' arranged to liftthe presser-bar. a j Before'proeeedmgto.-a description ofgpy invention; I desire it understood that 'the -"rforin disclosed is the preferred form fifl-at-th resent time, but thatit may be zchanged in various wayswithout departing from the spirit-of my invention. now describe my invention.

' "'{On the driving-shaft}, is an eccentric .17, 6-0 embraced by a strap 18,:having adjustable lugs 19 and'20,'b -me'ans' of which the lost motion between t estrap'a'nd the eccentric. may bejtaken up. The other end of the .straf) is suitably connected at 21 to theup-' per end o'fth'e arm 22, whichlis attachedfat.

Its lower'end-toa'tub'e or shaft "23, suitably to lturn. and torifiprocate 'long1- -tu i'na earmgs 2 1" an 25, rojecting u .wardl y from frame A of the'macliine. 'lo t e said shaft 23, areattached-zlooper carriers 26 and 27, by"means -of screws 28 311M529, re-

Hated; the'conneetion 1s,-'s' w specti'vely. In the said carriers are mounted l' 'p'jrs30and31', respectively, which may be screws 32 and-i335 The/strap l'8,..i's adapted to sl de or vibrate laterally on the eccentric 17f,- and the shaft-23,, is adap ted .-to turn and to slidelaterallyinitsbearings; Intermedi atethe ends of the strap 18, I insert a pin 34,

which hasballs 35 and 36, formed on its ends. Suita 1y attachedto theframe A, of

- adjustable-piece 39 ,f on which isformed an inchne'd surface-40,. the piece or block 39," being keyedin a wa 41, so as'to be adj ustable'ver tically in=the bearing-37, andscrew 42, serving as a-means for securing the:piece 39, to I the bearing 37, and-theslot 43, serving as-a.

: means for permitting the said piece- 39 to-b adjusted vertically Between the ends'ofthe pin or bar 34-, and-fthe inclinedsurfaces 38,

40 I insert shoes-.44and 45; which are -.85 formed sockets; 46 and i 47, suitable to; embrace a art of the-ball endst35 and 36, of the in '34. ='1-he screvr 48; serwes,as'a means-for" oldingthe; pin 34, inthe' connection -18, The shoes'ifand 45,]may have 'flatsurfaces 99. 519- and '50,:Irvhicliiengagegtheiinclined-

sure faces

38 and 40, as-m:1T1g;?e,;5, ,6;rb t, the

- preferredform-of my-invention is to have, the

shoes 44, :45, 'madeifhqlldwiong'their bearing faces, alt-d ff,- vIiig'.=- 1" T,-. and-.with "a contra j ,95 bore; .or aperture :"construction that thecupfermationprevexits tlie escape. (pf-oil orother'lirbricantfi permitsfproper;=lubricat1brr' an l it is found "In thejprese'nt' form -05; my. iniieh ogiill';

have; shown; the"bearinlg 37-, q attached? f the. frame *A- of. the-machine by'-meains?of-.='serwsf' 51 i d5 f i" 1 l Theoperation of thisf-looper mechanisthis-- substantially-'as-folleivs: the-shaftril s:

revolved, thei' hollow shaft g3, 'ahdjconsequently the "loopegs are E' F Q extreme forwardimoyement'fiolili .Qop eraj tor, the forward-jmovenient;ofi' theloopei'sgm slows"up until theyir'each-ithe extreme 'ofl" movement this direction-: *At thestrap 'endof==the connection -1 8',-';is'-traveI;i

ing 'atits --h ghe pe w sr ya seq'uentlythe loo ei's"- are-'- being. passed.-at"- their highest, laterallypm. ara-toly' 'the needlesdoscending -in the cop ofilthe loo'p er-thr'ead; i th'e loepers; extreme backward -;p'o'sition or.-' toward operator, or as the eccentric movesonjtorthi 1:20

extreme, the'returnimotion is also slowing-up. until it stops; 'At' -tl Jis-fpoint, the} stray end of. the-connection. -18; islnoving upwar y-at its highest speed-and conseqitgently ther'looP ers are beingrapidly inovedterallyin'pos'i-i '12 5 'tion' t-o engage the -need lethread 'lpops,- "the" inclines--10 and 38, being sufficient to'givethe desired lateral movement for theseloop engagements; 4

i will now describe myauznllaryloope .130 g mechanism by .means of which this machine is converted into a very' high-speed, special machine forornamental seam covering, ornamental stitching,', ornamental ribbon insertion and other purposes.

1' In suitable bearings formed in the forward end of the "goose neck or the frame of the machine, is mounted,- as beforementioned, a v pre'sser-bar ,5. Inthis presserbar 6, I form a long bore, which ,extends the full :dength of the resser-bar; or I use a tube for {this purpose; In: the said bore, I locate to turn freely,l.a.-looper carrier rod 53, to. the' lower end of which I clamp -a looper 54', by

'r'the looper rod andtransversely of the same, ,I; locate'adjustably a stem. 56,..projecting means oi 'af screw55. In'the upper end .of

I from afball'5 7, and I-secure the said. stem\56,

in its receptacle by means of a screw -58.'

-{2fo;: ne end of the',-oonnection 59, is suitably on th'eend ofa {pin 60,, which-pin is secured f 2.5-; screw-62,1 the lever 61, being pivoted at 62. to a suitable'bracketfi3, which is attached in formed- :to emb'race the ball 5 7,-a-nd' the other end of: the -'said connection-59, is suitably formed embracea ball, not shown, formed to the upper end -of ;a'lever 61', by means of a a suitable manner to the frame Aof thema- 'ch'ine: .ZIn the lower end'ofthe lever 61, is

suitably mounted a [switch-cam shoe 64,-

which'engages with; a swi-tchcam 65. This 4 sw itch 'cam 65, is so constructed and of such size it moves the lower end of the lever 61, or-gives the lower end of the said lever 61,

Frevolution's'of the shaft 1. This movement a complete movement back and forth to two of the jswitchecam is the same as used in zigzag 'or'button'hole sewing machines. It will 'nowj-belseen thatin operating the machine,

looper-rod or carrier, 53, said carrier-will be" :the. -lever 6.1, will be oscillatedand th'rou h its connection-with the upper end'oft e oscillated andrwith-it the looper 54. It will a'ls'o =be fseen' t-hat b adjusting the stem 56, in. the upper .endo the ;-lo oper-carrier 53, so as tobrmg the end of-the connection '59, to-

. :ward or from the said looper-carrier, that the means of which the auxiliary thread extent of the-movement of the looper will be increased or decreased. Inthe free end of the looper 54-, is formed .a thread or cord eyelet or cord-is passed back and forth under the needles. a 1

'- I will nowidescribethe preferred form of presser-foot, which I provide foruse in cominaltiomwith my looper movement.

The pl esser-footlin general-I number 67.

Trhe'u-pper end of the resser-foot 67,-;is,

suitably formedtoembrace the lower end of the-presser-bar, 6.- Lugs 68 and 69', are

formed on the said presser-foot separated by a slot 70,"extending between the said lugs into the presser-bar socket, a' clam ing screw 71, being suitably located in said ugs to clamp' the' Ipresser-foot securely to the,

lower end of the presser-bar. The presserbar is suitably formed as shown in Fig. 9, to

permit the shank of the looper 54,- to be clamped to the lower end of the looper-rod 53. For this purpose the shank of the looper 54, is of sufiicientextent to just fit in the opening in the resser-foot, and when secured in place prevents longitudinal move ment of the looper-rod 53.

the needles and the free drawing up oi the A suitable opening-7.2, isformed through the presser-foot to permit theiree passa e of;

loops, thetongue 73, beingprovided to assist in holding the work down and for the urpose of taking the strain oiithe auxiliary lboper or thread. A'channel or guide 74, is formed through the resser-foot for the pas.-

" sage of ribbon or the ike, and a groove 75, in

the bottom of the presser-foot is formed slightly deeper back'of the-needle to permit of the passage, of the auxiliary cord or -loo er-thread and the ribbon. The front en of roove 75, is not formed quite as deep as at t e rear end because only the ribbon assesin' front, the auxiliary thread or-cord ingl swung back and forth over the tongue 72, t

en passing on back of: the needles. .On the forward end of the resser foot is a detachable piece 76, throng which ribbon guide openings 77 and 78, are-formed-. This detachable piece 76, has an upwardly extending'part through which the hole or 'eye' 79,'is' formed which serves as a guide for the auxiliary cord or thread. This location of the eye for the cord or thread makes it unnecessary to have any take-up for thevsaid cord; and this piece 76, being detachable,-

makes it convenient to change it for a piece ings.

For the purpose of regulating the tension with narrower or wider ribbon guide open= on-the auxiliary cord or thread, I provide a tension device '80, which is conveniently located so that the auxiliary thread'or' cord can pas". directly through the same-to the eye 79 This tension device is of usual construct n and need not behere specified. In

practice, I employ a very slight tension on needle-threads are indicatedby" b, b, the

cord by c, and the fabric by a; --This forms a desirable ornamental stitch for the surface.

of the work, and also a'se'am covering stitch, inasmuch as' the stitches may be very short and the cord made to practically cover the adjacent or joined edges. By varylng the tension on the cord, different ornamental By a plying light tension to applied thereto by stitching b b &

effects can be obtained, as for exa... =ple' shown in F g. 13, wherein a the work, 32?,

b the needle-threads and c'-', the c'ord. By

allowing the cord to run practically. free of tension, the effect. shown in Fig. .14 will be produced, wherein a is. the work, b b the needle-threads and 0 the cord. In Fig. 15,

two different pieces of work are shown at a,

a, the joining seam being covered by ribbon or tape d", which is secured in place by the stitching b b and the cord 0 This makes a strong and .ornamental seam-cover. Tucking can be produced and ornamented as shown in Fig. 16, the work, a being formed into tucks (P, which have the ornamental cord 0 Obviously, many difieren-t forms of work and ornamental effects can be produced on my machine as desired; And it should be under stood that the stitching may be applied to the surface of the work, to cover a seam, or

to form the junction between two pieces of work.

In the modified form shown in Fig. 6,'all the essential parts aresubstantially the same and have the same referencecharacters ap- 'plied thereto as in the other figures; but, the

bearing for controlling certain of the movements of the looper is differently formed.

For example, I form a bearing 37* with all its walls inclined a's'at 38 39*, and 40 the piece 39 being adjustable as in the other form. This disposition of the wall of the bearing piece is accompanied by a disposition of the pin 34 at an angle to the driving shaft instead of parallel therewith as in the other form. In this way the pin 34 engages the

shoes

44, 45, in a line parallel withtheir and engaging said pin.

bore 44 instead of at an angle thereto.

Another form of my invention is illustrated in Fig. 18 wherein 25 represents the standard or bearing for a short pin 79 held in said hearing by screws 8Q tapped therethrough The pin proj ectssufficiently from the bearin to afford support for a sliding sleeve 81 to w ich the looper c'arriers 26 and 27. are rigidly secured by means of the screws'28 and 29 tapped through said carriers and engaging said sleeve. Adjacent the looper earners this sleeve has secured' thereto the crank-arm 22 to which the eccentric strap 18 is pivotally'secured as in the other figures. The crank-arm 22* is held to 'the sleeve by means of the set-screws 82 55.

tapped through the bearing of the crank-arm and engaging said sleeve. This construc- .tion forms a simple and compact bearing for thesupportand actuation of the loopers', the sleeve 81 rocking and sliding on the journal pin 79 to give the loop-taking and needleavoiding movements in substantially the manner of operation of the hollowshaft 23.-

While I have chosen to illustrate my looper mechanism in a machine having a plurality of needles, it will 'be.obvious that asingleneedle machine is within the contemplation of my invention.

I- desire it understood in connection with this invention that I do not wish to be lima.

ited toxthe form of auxiliary" looper herein disclosed, nor to the particular form of presser-footl In fact; various changes may be made without departing from the spirit of my invention as before stated.

WhatIclaim is: 1,-A sewingmachine comprising a part ,which carries a looper, a revolving. shaft which carries an eccentricor cam, a pitman connection between said eccentric and said part, and means engaged by said pitman whereby lon itudinal movement of the pitman causes hodily lateral movement of the same.

2. A sewing machine comprising a revolving shaft, an eccentric carried by-said shaft, a rocking shaft the axis'of which is parallel with said'revolvi shaft,'a connection between said eccentrlc and said rocking shaft, means engaged by said connection whereby the. longitudinal movement of the same causes rocking and longitudinal movement of "said rocking shaft, and a looper carried by' said rocking shaft. 4

3. In a sewing machine, a revolving shaft, an eccentric carried by said shaft, a rocking shaft, a looper carried by said rocking shaft, an arm carried by said rocking shaft, a pitman directly connecting said arm and-said eccentric whereby said rocking shaft is oscillated, and means engaged by said pitman whereby the movement of the same causes said rocking shaft to move longitudinally.

4. A stitch-forming mechanism for sewing machines comprising a needle and cooperating looper, a carrier for said looper, an actuating cam, a single. (lIlVlIlg connectlon .be-

said second shaft is reciprocated longitudinally thereby, and a looper carried by said second shaft.

6. A. sewing machine havin a looper that is adapted to be moved longitudinally and laterally, a single revolving device and means for converting the ovement of the same into longitudinal an lateral movement of said looper comprising a pitman con-- nection, and a part having stationary in--' means for operating said looper comprising a part having two surfaces that are inclined to the vertical and parallel with respect to each other, a revolving shaft, an eccentric carried by said shaft, oneend of a strap pitman journaled on said eccentric, said strap pitman in engagement with the inclined surfaces of said part, and-a connection between .saidpitman and said looper by means of which the looper is operated.

' A 8. A sewing mach'ne comprising a looper, means for operating said looper comprising a vstationary. part having two inclined surfaces that are parallel with respect to each other, means for oscillating said looper longitudinally, and means intermediate said inclined surfaces and said looper whereby said surfaces cause said looper to be moved laterally. 9. A looper mechanism for sewing machines comprising a loop-carrier, and means for actuating the same including a driving shaftibarrying a rotary device and a single connection between the latter and the carrier having means cooperating therewith longitudinally said looper, means for re ciprocatinglaterally said, looper comprising a part having surfaces inclined to the vertical, means for adjustingitneface of one ofsaid surfaces so as to'decreasethe distance between said surfaces, and a part operating between said surfaces by means of which said looper is reciprocated laterally.

11. A looper mechanism for sewing machines comprising a looper-carrier and means for actuating the same including a rotary device, a connection between the latter 'and the carrier, and means whereby the connection is given bodily movements, which are transmitted to the carrier, and also longitu-' dinal movements at an angle to the bodily movements, and said latter movement being on and relatively to said device.

12. A sewing machine comprising a revolving shaft that isprovided with an eccentric, a strap pitman the strap end of which. is journaled on said eccentric and adapted to move laterally thereon, a second shaft, a connection between the other end of said strap pitman and said second shaft, whereby said second shaft is oscillated from the movement of said eccentric, means in engagement with said strap pitman whereby when the same is operated it is moved laterally and said second shaft is thereby inoved longitudinally, and a looper carried by said second shaft.

13. A sewing machine provided with a needle-bar that is adapted to carry a plurality of needles, a looper mechanism.

adapted to cooperate with said needles, a single driving shaft, means adapting said shaft to operate said looper mechanism, an oscillating lever operated from the movement of said shaft, means adapting said lever to reciprocate the needle-bar, a tubular resser-bar, a rod or shaft j-ournaled in the tube of said resser-bar, an auxiliary thread carrying finger carried by said rod, and means whereby said rod is oscillated from the movement of saidsingle shaft.

14. A sewing machine having a single revolving shaft, a plurality of needles, a plurality of loopers adapted to cooperate with said needles, means whereby said needles and said loopers are operated from the movement of said single revolving shaft, 'a tubular pressenbar, a rod or shaft journaled in the tube of said presser-bar, an auxiliary thread or cord carrier carried by sa1d-rod,a cam mounted on said single revolving shaft, and means adapting said cam to operate said auxiliary finger. I

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

WILLIAM N. PARKES.

Witnesses: p g

CHAS. MOO. CHAPMAN, M. HnRsKovrrz.