US994532A - Sewing-machine. - Google Patents

Description

` "SHEETS-SHEET 1.

Patentizd I3 une 6, 1911.

W. N. PARKES.

` SEWING MACHINE.

AVP'PLIOATIGN FILED JAN. s, 139'9.

W/ TNE SSE S Il W. N`. PARKES.

SEWING MACHINE. APPLIUATION' FILED JAN. s. 1899.

'Patented June 6, 1911.

3 SHEETS-'SHEET 2.

INVENTOR v W. N. PARKES.

SEWING MACHINE.

APPLIOATIONPILED JAN.6,1B99.

Patented June 6, 1911.

3 SHEETS-SHEET 3. 4

/N VENTOH UNITED STATES PAlll'lW-I` OFFICE- WILLIAM N. IPABKES, 0F NEW YORK, yN. Y., ASSIGNORNTO THE PABKES lJMAGHIITE COMPANY, 0F NEW YORK, N. Y., .A CORPORATION OF NEW YORK.

snwmefnacnmn.

Specicatlon nl Ltters Patent.

Patented J une 6, 1911.

.ippiicauonmednnuary e, 189e, serial No. 701,349.

To all-:whom it may concern:

Be it known that I, VILLIAM N. IAnrins,V a citizen of the United States of America,"

residing at the city `fof New York, borough of Brooklyn, `in the countyofKings' and State of New York, have inventedV certain movement is produced between the stitchforming mechanism and the work, or zig-zag machines in which theneedle 4or needles are vibrated laterally. 4

The main object of the invention is to provide in machines lof this class, mechanismA whereby a plurality of laterally vibrating needles may be 'used'in line in the direc#l tion of the feed [ofthe work, to the endthat. y 'a plurality of rows of oversea'mfor zig-za .stitches may be simultaneously deposited .along the saine path in the interior,`or along lthe edge of a piece'of fabric, thereby largel increasing the production and scope of Suc 5 machines.

It is a lfurther lobject ofthe invention to provide `n a 'machine having al continuously or pluralityr ,revolving hook of the lockstitch type, mechanism for moving said hook laterally in unison with one or more 'laterally vibrating needles, thereby increasing the ex tent said needles may `bev.moved f-laterally without causing the machine to skip stitches.

y forth in the claims.

combination of elements 'hereinafter' described in the specification and specially set Referring to the drawings: 'Figure represents a front elevation lof a machine embod ing my invention, the cloth-plate being brofen awayon the.line1-1 of Fig. 2; Fig. 2- is a bottom plan view of thel mecha.-

'nism under the cloth-plate;- Fig. 3 is a` Sec,-

itionfon the4 lineI 3--3 Fig'. 2; Flg. liis a detail'of the swinging gate. (partly in section) in which lthe needle-bar reciprocates; Fig. 5

invention, :showing an arrangement of two of the same; Fig., 4is a plan-o fthe'throatte; Fig. 9 1s ag. iagrammatic 'viewillusthe lines of overseamang- The invention belongs to the class of sew- I ing machines in which a relative lateral,

The invention consists in the elements and' stitches, and Fig. 10 is a detail view showing the ball-bearing for the looper carrier.

' In the drawings: A, designates the v.arm of the machine; VB, the needle-bar carrier or gate vpivotedupon journalscrews in 'the head of the machine, Fig. 4; C, the needle-- bar mounted in the gate; D, the work-plate and E, the under shaft of the machine.

b, is `a segment lever vibrated4 by a cam in a usual manner, and b1, is an adjustable link connection between the same and the needle-bar gate, all of which are of usual construction.

A ball ".oi'nt connection c, connects vthe i needle-bar with a revolving cam dislV c1', secured' to the main shaft of the-machine.;

and a collar c2, having a',lug c, projecting into a guide-way c, inthe needle-bar gate B, serves to keep thegne'edle bar from turning relatively to the It will be' obf.l

served lthat this. ball-joint connection between thecrank pin carried by the'disk c1, o

and the needle-bar permits the b a'r to be moved freely laterally, 'and that the lug c,

cause it restrains the needle-bar, from turning'laterally relative to the needle-bar gate which it would do i'frthere were no means `e5 Y gear wheel F, mounted on the lower sha-ft E, of the machine, which shaft s- 'ro-` provided for guiding it.

tated in'unison- Vwith the usual upper4 shaft lthrough a usual connection withy the same, turns a gear wheel f, mounted on'the end of .projecting'into the 'guide-way c, formed 1n a short horizontal shaft f1', the relative size Bevelv gear 'of the gears -being two-to-.one-

rotating movewheels f2 and f3,.transmit the ment to a vertical shaft f.

G, is secured to the upper-end of. the vertical. shaft f, A ball-jointlink connection g,

A driving dil'sk V connects *the disk G, with hook carrier disk g1, which latter is mounted to turnin bear-V ings. formedl in-a' lever g2, saidlever being fu crumed to .a stationary part of the machine, at y bearing g1, as illustrated 1 n` Fig. 10. vThe disk'.d g1,

.'1'00'V p". The lever 2 may be provided lfor t ehook cam-ier disk carriesf a hook or looper K, which in turnf *carries a bobbin-case in a usual manner.-

cam H, mounte bratts a segment-lever h., inunison withfthe" segmentlever 17, and anljadjustable link con nection la, transmits .the vibrations of the seg1nentlever h, to the lever g2, which carries the hook. 4 The segment-lever h, is pivoted at h*,therefore it will be understood that by connecting the end of the link 71,1, .Centr-al with the axis of thepivot if, no '.lateralmovement 'will be given to the lever 71, and the hook K, will therefore remain 1n the same center of rotation.

The segment levers o and 7L, are of the usual construction provided with the usual ways in which the ends of the links b1, and h1., respectively are adjustably connected.

The axes .of-the lever g2,'and the swinging l gate B, are in a. vertical line with each other.

ThisA disposition of these axes causes the needle and the hook tomove laterally in circular aths that are concentric with respect to eac other, thereby aiding in maintaining proper cooperation between the beak of the hook, and the needles'.

Reference character 50,' 'indicates aper- 4tures through the throat or needle-plate-to permit the operation of a usual feed dog .throiaghA tli" sa1ne in 'a usual manner. 'The plate is also provided with needle slots l', and 52,- tlliat are connected by a slot 53, and the .plate is also provided with a tonguev 54. In the operation of the machine ythe needles are a ranged in a line in the direction of the lengt of these slots Whichis the direction of the movementof the feed. Ordinarily the needles are operated so they alternately descendi in these slots vfirst in one and then in the v1. other.. The tongue 54E-serves to assist in suporting the cloth, and also t0 take thestrain oflthe threads as the stitches are being set.

The work movesin the direction of the ar row in said FigfS, so it will be understood that the aperture permits the'lateral link of' bobbin threadto move from `under said tongue up through the slot 53 to the work as thefflatter is fed forward.

. Referring more particularly to the two-toone gearing before mentioned, it is; noted that this .construction gives a longer relative period-for'I` theaction of the take-up', and the "feed,#thanthesegelements have in theordinary ig-zag machine, because the hook moves Imore @rapidilyrelative to elements, anfiatf the same timethe hook has a uniform otiting movement,^al l ofy which adds to thex scope Aand faflsoto thesp'eed. aff-"which the niachin'e @unibe-run. The needle-bar? and needlefli older are located' so.4 that thel eedlesfreieiprocat'e. at the sideyof thelooperfforthe purpose' :of bringing about, loop engagment.

[beta1 een the' needles and theloopleij'ivith' the @edles in line in the @direction of the move- 55 the take-up acts, and a stitch is completed.

Referring to the stitches made, it will be un derstood that the sin le stitches'of each line of overseaming stitc es will intersect each other as shown in Fig. 9, under one adjustment of the extent of the movement of the feed, and that different adjustments of the extent of the said movement will vary the point of intersection of these stitches.

f It will be clear that the invention may b'e duplicated in a single machine and stitching thereby done over more than one path at once g for example, by duplicating the stitch-forming mechanism, as` illustrated in Figs. and- 7, and by using any suitable form of needle clamp for holding the nee dles. This arrangement of t-wo hooks and hook carriers is practically a duplication of the single hook mechanism which has been described; another set of needles may be used having'the same arrangement relative to the additional hook as the set shown vhas to the hook the single hook mechanism. As seen in Fig. 6, the link connect-ion L, which is connected to one of the carriers, may'vibrate both of the carriers, as they are connected with each other so as to move in unison. The two loopers can be rotated by means of the shaft f1, being extended as shown in Fig. 17, and duplicating the bevel gearing f2'and f3. These Figs. 6 and 7, are

-intended to simply indicate a manner in which the single hook mechanism can be duplicated.

In the-operation `of the machine when a single hook and two needles are used, the needle in the front descends at z, Fig. 9,.a n d the one in fline back of the said front needle descends at al. After the said needles have engaged with the complemental stitch-forming mechanism, ascended and become disengaged from the work, they are moved to the left when they descend at z2 and z3, after engagement again with the complemental .stitch-forming mechanism and disengagement from the work, they are moved tothe rightI and descend'at z* and e5, and so on,

thus forming intersecting lines of zig-zag 4 stitchesover the same path. y

`Having now described my invention, what I claim as new is: l. In a sewing machine, a series of stitch forming devices for depositin upon the fabrici'jtobe sewed a plurality o rows of oversea'rii stitches, said stitch-forming devices including a plurality of needles arranged one. directly behind the other in the line-of the direction of feed, and complementallst-itch- 'forming devices, whereby a plurality of intersecting stitches in the `same path maybe "deposited upon .the fabric. v

forming devices for deposit-ing -upon the fabric to Abe'sewe'd a plurality of rows of overs'eailttstitches, said stitch-foming devices including a plurality of laterally viv 2. In'- a sewing machine, a series of stitchvices including a plurality of laterally vi-` brating needles arranged one directly behind the other in the line of the direction of feed, whereby a plurality of intersecting stitchesin the same path may be depositedupon the fabric, and a single under thread carrying looper with means Vfor operating it to cause it to cooperate with said needles.

4. A sewing machine having a plurality of needles, arranged one behind the 4otherin the line of feed, means for laterally vibrating said needles, and an under thread carrying looper coperating With said needles, and means for vibrating said looper in unison With 1 the lateral movements of the needles.

A sewing machine comprising a recip rocating needle and a looper; a vibrating gate carrying the needle and a .ibrating' carrier for the looper, the axes of which are coincident; and means for actuating the needle and looper `and for vibrating the gate and carrier.

6. A sewing machine comprising a venti cally reciprocating needle and a rotatiiig looper; a vibrating gate carrying the needle and a vibrating carrier for the looper, the axis-,of which are co-inci.dent; means for tuating the needle and looper and for vibrating the gate and carrier.

7; A sewing machine comprising a reciprocating and vibrating needle and av looper having a revolving movement coperating with .the needle and having a vibrating movement about an axis'that is in line with the 'axis about which the needle vibrates;

andmeans for -actuating the needle and looper with a ratio of two-to-one.

81A sewing machine comprising a recip` rocating vibrating needle-bar having a plurality of needles arranged one in advance of the other; a coperating looper; means for actuating said needles and looper with a, ratio of two-tooneg and means for vibrating saidneedle and looper on axes that vare in alinenient with eachother.

9. A sewing machine'comprising a vertically reciprocating and laterally vibrating needle and a horizontally rotating and laterally vibrating looper; a horizontally rotating driver; a connection between the looper and driver for imparting the rotary movement and permitting the vibratory movement; an actuating mechanism; a connection between the latter and the-driver; and means for imparting the vibratory movement to the needle and looper.

l0. A. sewing machine having a stitchforming mechanism coniprising a horizontally rotating and vibrating looper; means for giving the vibratory movement;` and.

means for giving therotating movement; inclndingl a horizontally arranged driver, a vertically arranged gear a'nd connecting means between the driver and gear. f

11. A sewing machine having a stitchforming mechanism comprising 4a horizontally rotating and vibrating looper; means for giving the vibrating movement; and,

means for giving the rotating movement, including a horizontal driver located directly beneath the looper, a gear and connecting means between the driver andgean 12. A sewing machine comprising a re volving shaft provided Witha crank pin, a pivoted needle-bar gate, a 'needle-bar mount-- ed in said needle-bar gate, a ball-joint con nection between the crank pin and the" needle-bar whereby the needle-bar is reciprocated from the movement of the shaft, a guide-way formed in the gate, a part carried by the needlefoar that' extends into said needle-bar gate.

In testimony Whereof'I have hereunto YsetV presence oftwo subscribing r QE. P. Hmmmoregon,l

GEO. W. EISENBRAUN.

guidon/ay, andmeans Vfor vibrating the 'y

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