US2604860A - Multiple needle embroidering machine - Google Patents

Description

July 29, 1952 l. FARBER MULTIPLE NEEDLE EMBROIDERING MACHINE 6 Sheets-Sheet 1 Filed June 12, 1946 Hillllllll IRVING FARBER INVENTOR A T TORNE Y July 29, 1 95 2 FARBER 2,604,860 MULTIPLE NEEDLE EMBROIDERING MACHINE I Filed June 12, 1945 r e Sheets-Sheet 2 HgZ ' IRVING FARBER INVENTOR.

1 BY W fiww ATTORNEY July 29, 1952 FARBER 2,604,866

- MULTIPLE NEEDLE EMBROIDERING MACHINE Filed June 12, 1946 6 Sheets-Sheet 4 IRVING FARBER.

INYENTOR ATTORNEY 1. FA RBE'R MULTIPLE NEEDLE EMBROIDERING'MACHINE July 29, 1952 B Sheets-Sheet '5 7 Filed June 12, 1946 IRVING FARBER INVENTOR.

ATTORNEY July 29, 1952 1; FARBER 0 MULTIPLE NEEDLE EMBROIDERING MACHINE Filed June 12, 1946 I s Sheets-Sheet e IRVING FAR IN VEN '0 ATTORNEY Patented July 29,

MULTIPLE NEEDLE EMBROIDERING VMAQHINE' Barber, Brooklyn, N. Y. Application an 12, 1946, Serial No. 67 ,239

any desired direction "and wherein the needle moves in combination with the feed-motion to produce intricate designs.

The universal-feed mechanism of the Bonnaz embroidering machinewhich serves to control the direction of motion ofthe wcrk' is actuated by a hand'crank positioned below the work-supporting base.

The machine also comprises 'a needle actuating shaft which actuates a needle bar driver and imparts vertical reciprocations; to the needle.

In the practical application of embroidering machines of -the class described when it is desired. to produce duplicate designs parallel or linear form, it is found that the operator cannot exactly duplicate the second or third or fourth,

etc. designs to be exactly like the first one. In

practice it is found that when an attempt made to duplicate Bonnaz embroidery designs one at a time and in side by side relation, it is impossible to achieve exact reproduction'due toitheindividan inaptitud'es'orcharacteristics of thebperator. When such duplication is attempted; the faults in workmanship are clearly visible without the necessity'o'f closely checkingfleven without a magnifying glass. There is, howevenademand in the art for the production of duplicate embroidery designs spaced ona strip of material in perfect parallel or linearrelaticn.

An object of this invention is to produce an attachment for Bonnaz type embroidery machines which will adapt the embroidery machine for producing two or more identical designs simultaneously; that is, without any difference in the relative spacing of the various figures or elements constituting the designs.

- Another object of this invention resides in an improved mechanism for producing a plurality of identical size embroidery "designs and wherein each needle has its own coacting oscillating lower and means is provided for the individual adj stment of the loopers.

Another object of this invention is to provide a mechanism whereby the needles are so arranged as to produce a plurality of alternating design ei' fects simultaneously.

Another object of thislinvention is to mount a "sol mn. (01. 112-98) plurality of front loopers in linearalinement and p a plurality of rear loopers. in linear. alinement'on separate drive shafts. To accomplish this I have provided independent worm gears, one for each lodper, the front worm gears being located on one shaft and the rear worm gears beinglocated on anin'de'pendent shaft, and each worm gear is in.- dependently and jrotatably, adjustable "on each drive shaft. j]

' In Bonnaz. type machines, before changing the character of. the, stitch; it is necessary to disconnect the looperjfro'n'i its drivera'nd give to it a half-turn and a like adjustment to the needla nd in effecting these adjustments"extremecare is essential to the proper itiming of thelooper with respect to the line ofneedle actu'ation.

In this disclosure there are-individual mountings'of the looper' actuatinggears which permit these adjustmentsto be made'jf Two forms of. embroidery stitches are common to machines "or type. v z. the ordinar chain stitch and the drop stitch," and this improved nr'iulti-ple-n'eedlev machine" has [means rer' altering the character of the rows of stitching by individually changing the operative relationship of. the loopers and actuating gear member's-so that one .or'rn'ore chain. stitch rows of embroidery may be made simultaneously with one or more drop stitch rows of embroidery.

Another object of this invention is-to provide an attachmentfor a lBonn'azf embroidery machines/herein two needles-are mounted in the front and two needles are meuntedin the rear of the machine and to employ the front, andrear needles in ififirenti relationships or in difierent combinations for eiiecting various types of composite embroidery, which is notpossiblewith the ordinary singleneedle embroidery machines.

A er ob e of t n ent o i tofrmdu e an t e ment or a B n r m oidery machine wh re it Pos bl to -.sim iai epus y o era e w t ne roni nee l id on ea n ed whi h a e insane-a a zel i on bu ie: n a s ng ti 'e lane- With he ve n th r ob e s in Vi w the invention will be hereinafter more particularly scr b d an the comb ne n a d ran eme f P i l e hown he e 'qqm anrin drawings and pointed out in the clairnswhich formpart of this specification. I

Re e nce w ll no be d t the. draw n er in l k hume s i ierenqe de gnate "co responding parts throughoutthe several views, in which 4 Fi ure aside e eva on IQ? a; me c ar ort n the ins;:-h. ad f 2111. min. c h e q i d' wit -the-meehae s a vention, a portion of the machine-hel e n broken away.- s 1::

Figure 2 is an end elevation of the sewing head shown in Figure 1, the portion of the machine below the base being broken away.

Figure 3 is a bottom view of the machine, the thread spool holders for the needles being removed.

Figure 4 is a top plan view of the head portion of the machine, showing an elongated main needle-bar driver.

Figured-is a top plan view of a nipple carrier.

Figure 6 is a top plan view of the nipple guide.

Figure 7 is a bottom plan view of the carrier for the needle housings added by my attachment. 7 V

Figure 8 is a cross-sectional view, the section being taken as on line B--8 in Figure 7.

Figure 9 is a front elevation of thread spool carriers.

Figure 10 shows a combination of two rows of Bonnaz" embroidery made in accordance with this invention, with the two front needles.

Figure 11 shows a combination of two rows of Bonna'z embroidery made with the front lefthand needle and the rear right-hand needle.

Figure 12 shows a composite design of four rows of Bonnaz embroidery wherein the design r elements are alternated and wherein, along any horizontal line passing through the design elements the two front needles show identical elements which differ from the identical elements 'made by the two rear needles.

Figure 13 shows a composite design of two rows of "Bonnaz embroidery having a common meeting plane, using the front right-hand needle and a rear middle needle.

In the illustrated embodiment of the invention, the numeral loindicates the work supporting base of an embroidery machine embodying 'my invention and comprising a tubular overl6, H in the head l2. The main needle-bar I carries at its lower end a hook-shaped needle I8 which coacts below the fabric with a looper "(not shown) to draw loops of thread from a supply spool below the work supporting base 10 through the fabric and enchain the same 'cumference of the foot is of suflicient size to permit a plurality of needles I8 18 I8 and -|8 to be operatively positioned therein without any interference from the oscillating foot. The feeding foot 20 derives its feeding movements from a rotary cam 2| upon the shaft |3, as is well known in the art.

The rising and falling movements of the feeding foot 20 are derived from a rotary cam 24 upon the shaft l3 and are transmitted to the feeding foot by a lever 25. Work-holding and stripping nipples 26 are vertically reciprocated alternately with the feeding foot from the feeding foot lifting cam 24.

The feeding foot 20 is supported for universal feeding movements in the plane of the work supporting base [0, the direction of feeding being controlled by a hand crank I20 below the work supporting base l0.

For the purpose of this invention 1 have elona needle bar I5 4 gated the needle-bar driver 14 to provide a cantilever extension 30. At the free end of the extension 30 I have rotatably mounted a tubular needle bar housing 3|. Upper and lower collars 32, 33 fixed to the housing 3| contact the upper and lower faces of the said extension. This mounting permits rotation of the housing 3| in relation to the needle-bar driver l4 and causes the housing to follow the up and down movements of the driver.

The upper collar 32 has a screw 34 threaded therein and extending through an aperture in the housing 3|. The screw 34 serves to support The needle bar i5 supports the needle l8. 7 At the lower end of the tubular housing 3| I have suitably fixed a spur gear 35. I have mounted a collar 36 on the housing 3| in spaced relation from the gear 35 to provide support for a supplemental needle bar driver 31. The supplemental driver is thus constrained to follow the up and down movements of the needle bar driver [4.

For the purpose of maintaining the supplemental driver 31 in position while permitting vertical reciprocations thereof, I have provided a guide rod 40 having its upper end portion fixed in a bracket 4| by a threaded nut 42. The bracket 4| is secured to the head I2 by screws 43. The lower end portion of the guide rod 40 is fixed to a nipple guide 44 by a threaded nut 45.

A bracket 50 is fixed to the head I2 by a screw 5|. The bracket 50 has a screw 52 serving to support a stationary shaft 53. Rotatably mounted on the shaft 53 is an elongated idler spur gear 54.

As shown in Figures 1 and 2, the idler gear 54 is in meshed relation with a spur gear 55 which is fixed by a screw 56 to the needle bar housing 3|. It is thus possible for the needle bar housing 3| to be moved up and down by the needle-bar driver l4 while rotated by the idler gear 54.

It is to be noted that the elongated idler gear 54 is in meshed engagement with a drive gear 51 fixed to the main needle-bar housing 58. It will thus be seen that the gear 51 rotates the gear 55 and the needle bar housing 3| through the intermediary of the idler gear 54, the housings 58 and 3| rotating equally.

It is to be noted that the needle I8 is suitably threadably secured in the lower portion of the needle bar I5 and that in practice, when it is desired to adjust the vertical height of the needle |8 the screw 34 is employed to loosen the needle bar IE: to permit such adjustment. The screw 34 also serves to lock the needle bar Iii after said adjustment has been made.

Three nipple holders 60 of generally tubular form are threaded in a bracket 6 The bracket 6| is secured by screws 62 to a nipple lifter slide bar 63.

For a purpose to be described later, I have provided a nipple holder 60 threaded in the bracket 6|. As best shown in Figure 5, a tapped hole 64 and a clearance hole 65 are provided for the screws 62. A clearance hole 66 is also provided for the guide rod 40.

It is to be noted that the body portion of the bracket 6| has a cavity 61 providing clearance for the main needle-bar housing 58.

As shown in Figure 6, the nipple guide 44 has three clearance apertures 10 for the three nipple holders 60 The nipple guide 44 has a clearance Figure 7 is a bottom plan view of the carrier and needle bar driver 31.

The needle bar driver 31 comprises two short needle housings 80 for two nipple holders 60 shown in Figure 5. The needle bar driver 31 also comprises one short needle housing 80 for the nipple holder 60 An aperture 66 is also provided for the guide rod 40. It is topbe noted that in Figure '7, the guide rod 40 is omitted.

As shown in Figures '1 and 8, the needle housings 80 and 80? carry drive gears 65 which are suitably fixed thereto. Idler gears 86 are rotatably mounted on shoulder screws 61 on the needle bar driver 31. The idler gears 86 are in meshed relation with the drive gears 85. An idler gear 38 is rotatably mounted on a shoulder screwv 66 on the needle bar driver 31. The idler gear 38 is in meshed relation with one of the drive gears 65. The drive gear35 is fixed to the lower end portion of the needle bar housing 3I.

It is to be noted that the rear needle housings 80 and 30 are of lesser height than the front needle housings 3I and 58.

It will thus be noted that when the needle bar housing 3i is rotated, its attached drive gear 35 rotates the idler gear "86. The idler gear 83 drives one of the drive gears 85. The idler gears 06 then cause rotation, of the remainder drive gears 85. o

Figure 9 is a front elevation of thread spool carriers 95 and 96. Each carrier serves as a mounting for two spools of thread or the like.

The carriers 65 and 36 are fixed in an upright bracket 61. Thread tensioning devices.03,'66, I 00,; and I! serve to adjust the tension of the threads leading to loopers I02, I03, I04 and I05, which are well known in the art (Figures land 3) As best shown in Figure 3, the thread holder bracket 51 is suitably fixed by screws I01 to the lower face of the work supporting base III of the machine.

The loopers I02 to I05, inclusive, are driven by individual looper drive gears or Worm gears H2 and H5, inclusive (Figure 3).

A main looper drive shaft H6 is slidably and rotatably mounted in bearings I I1 and H8. A bevel gear H6 is fixed to the looper drive shaft I I6. Bevel gears-H9 securedtoshafts I32 and H6 and actuated by a crank handle I20 cause rotation of the looper drive shaft I I 6. The crank handle I 20 also actuates the feed shaft I2I as is well known in the art.

It will thus be seen that the main looper drive shaft H6 actuates the loopers I02 and I03.

It is to be noted that the looper drive gears I I 2 and I I3 are adjustably mounted on the looper drive shaft II6 by screws I25. The looper drive gears I I4 and I I are also adjustably mounted on a supplemental looper drive shaft I26 by screws I25. The shaft I26 is slidably and rotatably mounted in a bearing H1 and in a bearing I21.

The shafts H6 and I26 have gears I28 fixed thereto by screws I29. An elongated idler gear I30 is mounted in meshed relation with the gears I28. The idler gear I30 is rotatably mounted in bearings I3 I. The idler gear I30 makes it possible to move the looper drive shafts H6 and I26 single operation.

horizontally while actuated by the .crank handle .For the purpose of connecting the main looper drive shaft H6 and the supplemental looper drive shaft I 26 soTthat they will move horizontally in unitaryrelation, I provide shoulder collars I35 secured to the'shafts H6 and I25 by screws I36. A centrally-split connecting'm'eniber I31 is secured 'by screws 138 and serves to hold the shoulder collars I35 in unitary relation. It. will 1 thus be seen that when the shaft H6 is moved, the shaft' I26 ismoved along in the same direoe tion. i T i Figure 10 shows illustrations of two vertical rows of identical embroidery designs I40, I40 made by the two front needles I8 I8 The em broidery designs I40, I40 start and end in identical positions or at identical design elements I4I, III and I42, I42.

Figure 11 shows illustrations of two rows of embroidery designs I43, I43, made by the front left hand needle I8 and by the right-hand rear needle I8 It will be noted that the size of the design elements I44, I 44 are wider than that shown in Figure 10, due to the increased space between the needles I8 and I83. It is also to be noted that the right-hand row is higher than the left-hand row because the needle I8. making this row is located rearwards of the front needle.

Figure 12 shows illustrations of four rows of embroidery designs I45, I45 and I46, I46 positioned in vertically spaced relation. The alternating effect is produced by making the first four design elements I41 simultaneously and in a The four succeeding design elements I48- are also produced simultaneously. The balance of the'four rows of embroidery is produced by alternating the design effects inrelative vertical positions. 7

Figure 13 showsan illustration of duplex embroidery design I45 made by using the front right-hand needle I0 simultaneously with the rear center needle (not shown). The right-hand needle I8 and the rear center needle (not shown) produce figures I5I, The operator then proceeds in a downward direction to make figures I52, I52 simultaneously.

As shown in Figure 3, a clearance aperture or housing I55 is provided in the looper housing I56 for the reduced end portion of a looper. A clearance aperture I 51 is also provided in the housing I56 concentric with the aperture I55 for the gear teeth of the looper. The apertures I55 and I51 are-employed for mounting a looper therein when it is desired to make embroiderysuch as is shown in Figure 13 which requires a rear central needle.

It will thus be seen that when this machine is operated with one front needle and one rear needle, which are in spaced-apart relation but lie in a single vertical plane, that composite designs such as that shown in Figure 13 may be produced while operating in the customary manner, that is, lengthwise of the fabric.

Figures 2 and 4 show hand operated means for raising the feeding foot 20. As shown, a lever arm I60 is rotatably mounted on. a pivot NH. The lever arm I 60 comprises an annular end portion I62 which is cam-shaped and slopes down from the right-hand end portion near the lever arm to a substantially flat plate-like surface. A pin I63 in a feeding-foot lifter I64 is in pressure contact with the annular portion I62 due to the force exerted by a spring I65 (Figure 2).

It is to be noted that the rear needle housings and 60 are short as compared with the front I5I in the same operation.

needle housings 3i and .58.. The rear needle housings 80 and 82 (Figure 8) have threaded apertures 161, each serving to receive a screw [68 (Figure 1). c

By making the rear needlehousings 80 and BO ofshort lengthI am able to position the rear needles I8 I8 very close to the front needles [8 and It without interfering with the construction of the Bonnaz embroidery machine.

The machine has four active needles which produce the design shown in Figure 12. The machine has five needle housings, only four of which may work at any particular time. The machine has. one inactive housing 155 for the usual loopen? :Theina'ctivehousing 155 in conjunction with the needle-I8 are used to produce the design shown in Figure 13. s 1

Figure 1 is the frontof the machine, the way the operator faces the machine when operating. The inactive nipple holder 60 shown in Figure 5 is for the housing 80 The clearance aperture "I8 shown in Figure 6 is for the nipple holder 60.

In accordancewith the patent statutes I have described and illustrated the preferred embodiment of my invention, but it will be understood that various changes and. modifications can be made therein without departing from the spirit of the invention as defined by the appended claims.

I claim: v 1. In a multiple-needle embroidery machine for simultaneously producing a plurality of independent ,embroiderydesigns, a plurality of front needle housings, a rear needle housing, a needle bar driver, a supplemental needle bar driver carried by said needle bar driver, said supplemental needle bar driver carrying one of said front needle housings and said rear needle housing, said rear needle housing being of lesser height than said front needle housings.

- 2., In a multiple needle embroidery machine having a set of front. needles and a rear needle mounted in spaced-apart relation for simultaneously .producinga plurality of identical and independent embroidery designs of uniform size, thedesigns produced by said front needles being in' spaced-apart relation from the designs produced by saidrear needles, said needles being independently'rotatably mounted, a vertically reciprocable main needle bar driver carrying said front needles,la' supplemental needle bar driver carrying :saidwlrear needle, said supplemental driver being positioned in'a direction transversely of said machine, said main needle bar driver having an extension, the free end of said extension serving to support said supplemental needle bar driver, feeding foot means adapted to inclose all of saidneedles each needle mounting comprising a gear, idlergear means positioned in meshed relation with said needle mounting gears to cause said needles to rotate equally, a main looper drive shaft for said front needles, a supplemental looper drive shaft for said rear needle, 2. plurality of loopers respectively coacting with said needles, and adjustable individual looper drivers mounted for oscillating each of said loopers equally and in timed relation with said needles, one of said needle mounting gears being a drive gear, a feed direction controllingshaft operatively connected with said drive gear, and means for actuating said shaft to cause identical actuations of said needles.

3. In a multiple needle embroidery machine having a plurality of front needles aligned lengthwise of the machine and a rear needle mounted for simultaneously producing a plurality of embroidery design elements in spaced-apart relation, said rear needle being positioned laterally of said front needles and of said machine, said needles being rotatably mounted, a vertically reciprocable main needle bar driver carrying said front needles, a supplemental needle bar driver carrying said rear needle, said main needle bar driver having an extension serving to vertically reciprocate said supplemental needle bar driver, feeding foot means adapted to inclose said needles, each needle mounting comprising a gear, idler gear means in meshed relation with said needle mounting gears causing said needles to rotate equally, a main looper drive shaft for said front needles, a supplemental looper drive shaft for said rear needle, gear means operatively connecting said drive shafts to cause both shafts to rotate in the same direction, looper drive gears mounted on said drive shafts, a plurality of loopers driven by said looper drive gears and respectively coacting with said needles, said looper drive gears being adapted for oscillating said loopers equally and in timed relation with said needles, one of said needle-mounting gears being a drive gear, a feed direction controlling shaft operatively connected with said drive gear, and means for actuating said shafts to cause identical actuations of said needles.

IRVING FARBER.

REFERENCES CITED The following references are of record in the file of this patent:

FOREIGN PATENTS Number Country Date 13,108 Great Britain Aug. 26, 1899 105,693 Germany Sept. 14, 1899

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