US2004834A - Tufting attachment for sewing machines - Google Patents

Tufting attachment for sewing machines Download PDF

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Publication number
US2004834A
US2004834A US412821A US41282129A US2004834A US 2004834 A US2004834 A US 2004834A US 412821 A US412821 A US 412821A US 41282129 A US41282129 A US 41282129A US 2004834 A US2004834 A US 2004834A
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Prior art keywords
needle
gripper
loop
rest
arm
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US412821A
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English (en)
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Russell Julian Guy
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Carter Brothers Inc
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Carter Brothers Inc
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Priority to US412821A priority Critical patent/US2004834A/en
Priority to GB15545/31A priority patent/GB381553A/en
Priority to GB22042/32A priority patent/GB381566A/en
Priority to GB22041/32A priority patent/GB381565A/en
Priority to FR718467D priority patent/FR718467A/fr
Priority to DEC44957D priority patent/DE603990C/de
Priority to US631907A priority patent/US1947436A/en
Application granted granted Critical
Publication of US2004834A publication Critical patent/US2004834A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/22—Work-feeding means with means for setting length of stitch
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Definitions

  • the invention relates to improvements in tufting attachments for sewing machines for making tufted work on sheeting or Woven fabrics, and the present application embodiesv improve- 5 ments on the machine set forth in the patent of J. M.r Gladish, No. 1,575,570, dated March 2, 1926.
  • the present device embodies many of the features of the patent referred to, with certain additional elements which cooperate with and improve the operation of the former machine.
  • the prior machine was designed to produce a series of loops or tufts in regular sequence in sheeting or fabrics.
  • This machine included a reciprocating needle carrying a strand of yarn or thread, and operating to produce and secure suc-4 cessive loops in stitch-like form in the fabric.
  • the loop forming mechanism included a bill or looper reciprocating toward and from a fixed abutment, the bill being designed to pass between the needle and the strand carried thereby While the needle was in lowered position.
  • One of the objects of the invention is to provide an oscillating gripper rest which cooperates with a gripper arm or loop retainer similar to that employed in the Gladish patent.
  • Another object of the invention is toprovide an adjustable rest-,for the looper bill or loop forming mechanism, so that a snug fit between the looper and its rest may be obtained.
  • a further object of the invention is to improve the throat plate of the machine, and preferablyalso the presser foot, by providing means which cause the stitches previously formed in the material being sewed upon to enter grooves which guide the stitches and keep them out of the -Way of the needle which is now forming anotherline of stitching.
  • FIG. -1 is a side elevation of a sewing machine with the improved mechanism constituting the invention applied thereto, and the enclosing means or work support removed;
  • Fig. 2 is a horizontal section of a part of the sewing machine below the presser foot and throat plate;
  • Fig. 4 is a side elevation ⁇ on an enlarged scale of certain parts of the working mechanism, showing the needle in fully depressed stroke, and the position of the adjacent mechanism when the needle is in such position,"dotted lines indicating the position of parts when the needle is passing through the goods;
  • Fig. 4a is a view'similar to Fig. 4, showing the needle going up and the parts in the positions which they assume at this stage of the operation;
  • Figs. 10, l1 andv 12 are transverse vertical sec ⁇ tions taken a short distance inside ofthe needle ⁇ and looking to the right in Figs. 1 and 2, these views being intended to illustrate the operation of the needle in the formation of 1oops,*and the severance of the latter to form tufts;
  • Fig. 13 is ⁇ a perspective view on an enlarged scale, showing the throat plate and intended to illustrate the novel features thereof;
  • Fig. 14 is a detailed sectional view throughthe presser foot and throat plate, and showing the cooperating features thereof whichl permit goods having a line of stitching already formed thereon to pass through the machine without such stitching interfering with theoperation of the needle in forming a new line of stitching; y
  • Figs. 16 and 17 are detail sectional views on lines
  • the machine includes the usual sup-- ,porting bed or base 5 (Fig. 1), an upwardly and outwardly projecting xed arm or goose neck 6 having a head 1 'atthe left or forwardend there- 'of and a-'main shaft' 8 extendinglongitudinally over the'bed and through the lower portion of the arm 6.
  • a driving pulley 9 is-mounted on a portion of the shaft 8 extending to the right beyond the arm 6, and an eccentric
  • 8 is provided with a connecting rod attached to a rocker arm I2 fulcrumed on one side of the nxedarm or goose neck 6, as at I3, and
  • 4 is- Feeder mechanism and adjustable yoke
  • the sewing machine structure also includes a feed arm 28, clearly illustrated in Figs. 2 and 3, which arm is hinged at its rear end
  • feed arm 28 may be swung upwardly and downwardly with reference to the rocking support or frame by any suitable means cooperating with the main drive shaft 8.
  • an angularly bent strip 96 is secured to the under side of the arm 28, which strip has a horizontal portion 91 extending beneath a cam 98 on the shaft 8.
  • the arm 28 and the horizontal portion 91 of the strip 96 thus form a yoke, which embraces the cam 98. whereby a swinging upward and downward movement is imparted to the feed arm.
  • lubricating material 95 may be provided for oiling thev mechanism.
  • To impart forward and rearward movement to the feed ⁇ arm 28, means are provided for swinging the rocking support or frame 2
  • is provided with a laterally extending portion
  • the yoke may be - ⁇ swung, to engage any one of a plurality of cams 23, 23a and 23h, mounted on one end of the main driving shaft 8.
  • the purpose of this arm 28 and thus vary the extent of feed, de-
  • which is designed to engage the member
  • the effect of the cams is to move the yoke up and down, which motion is transmitted through the enlargement
  • the feed Aarm 20' carries toothed or serrated feeders 24 ( Figures 2, 3' and 10 to 13) working throughy the throat plate I8 in the manner usual in sewing machines, the said feeders being parallel and separated by va channel or throat 25.
  • the feeders 24 have four motions imparted thereto, so as to regularly engage with and disengage from the work on the work support I9, and to positively advance the work in accordance with the operation of feed devices of this class.
  • the sewing mechanism is also provided with a suitable tension pulley 26 1), mounted .at the rear end of the goose neck Ii.
  • a thread or .strand 21 passes first beneath ⁇ -said pulley 26, thence through a spring loop 26', and beneath a spring arm 28 and over tension pulley 28, on which the spring 28 is mounted.
  • the thread is then passed through an opening 16
  • This tensioning means will be more fully described hereinafter.
  • the thread 21 passes from the tension sleeve
  • improved attachments may be applied to various well known standard -sewing machines, the one previously described being suitable and illustrating one practical application of the improvements. It will be understood, however, that the improved attachment mechanisms may be applied to other sewing machine mechanisms having essential parts similar tothose described.
  • the power for the operation of the improved attachments may be obtained direct from the main or drive shaft 8 of the sewing machine, without requiring the use of separate driving mechanism, and in the present instance, the improved attachments are applied and held by the usual base 5 of the sewing machine.
  • Gripper operating mechanism On the main or drive shaft 8, a cam 29 is secured (Figs. 2 and 16), which cam is engaged by a yoke 30 secured to a longitudinally shiftable rock shaft 3
  • Cam 4 29 through the medium of the yoke 30 imparts a C rocking movement in opposite directions at intervals to the rock shaft 3
  • having a cam member 42 fixed thereto, this cam member being provided with a cam projection 43 which serves as a depressing means in connection with cooperating elements which' will now be described.
  • a collar 41 is secured to the longitudinally slidable rock shaft 3
  • the shaft 50 also extends through the lower portion of the bearing 33, and its bearing 49 is secured to the front edge of the base 5.
  • a (Figs. 1, 2, 4, 4a and 5), which engages the free end of .the arm 48, and imparts a longitudinal movement to the rock shaft 3
  • is longitudinally shifted against the resistance of a spring 52, which is mounted on a rod 44 extending longitudinally beyond the shaft 3
  • the spring 52 reacts between the yoke 30 and anut 53 mounted on and having screw-threaded engagement with the threaded end of the rod 44, said threaded end engaging a fixed stud 54 extending outwardly from the lower end of the goose neck B.
  • the tension of the spring may be adjusted by adjusting the nut 53 longitudinally of the rod 44.
  • the arrangement of the tension spring 52 differs from and is an improvement over the arrangement of the corresponding elements in Gladish Patent No.
  • Loop retainer or gripper arm On the end of the rock shaft 3
  • This loop retainer or arm has a forward flattened holding extremity 59 with 'a serrated free end 6
  • the loop retainer or gripper arm 58 is extended rearwardly by a bend 6
  • the said loop retainer or gripper arm 58 is also extended upwardly'above the plane of its shank 51 so as to properly position the flattened extremity 59 Movable gripper rest
  • 84 is employed which oscillates wlth'the gripper 58, this being one of the novel features of the invention.
  • the gripper 58 worked against a stationary stud, and it was necessary for the gripper to slide the yarn or thread on the face of the stud,'whereas by the use of the movable gripper rest
  • 80 is mounted on a circular boss 8
  • is concentric with the rock shaft 3
  • 80 is provided with fingers which straddle a cam
  • 82 isshaped similarly to and when the sleeve
  • 93 ( Figures 6 to 9) forming an auxiliary gripper arm which is serrated as at
  • the yoke carries an arm
  • the gripper arm 58 has in addition a movement toward and from the gripper rest
  • the gripper 58 alone was employed, whereas according to the present invention an additional gripper is employed which cooperatesf with' the gripper 58 the two devices forming a double gripper. which hold the yarn duringdifferent stages of the loop forming operation, and prevent the same from pulling through the material which is being sewed.
  • the additional gripper has a swinging or oscillating mouement about a vertical pivot, and swings toward and from a fixed abutment or gripper rest
  • 85 is mounted on a post or vertical pivot
  • 93 is moved in one direction by means of the cam 90 previously described, and in the other direction by. means of a compression spring
  • 94 extends laterally from the arm or shank v I 9 the end of the rod opposite said shank being slidable through a post
  • 91 surrounds the rod
  • Cutter and looper rock shafts Referring further to features substantially in common between the present device and Gladish Patent No. 1,575,570, it will be noted that a short distance in advance of the bearing 49 (Fig. 2) a pair of bearing members 62 are secured both at the front and rear portions of the bed or base 5, and therein are mounted transversely extending parallel rock shafts 63 and 64 designed primarily for operating the cutter and looper mechanisms respectively.
  • the shafts 63 and 64 extend under and at right angles to the main drive shaft 8.
  • a cam cylinder 65 Secured on the shaft 8 above the rock shaft 63 is a cam cylinder 65 having a cam groove 66, and secured on the shaft 63 is a rocking head 68 (Figs.
  • aside extension 69 having an opening 10 in which a rearwardly projecting pin 1
  • the principal function of the shaft 63 is to operate a cutter mechanism 15 and also a m'ov- -able needle guide bar 200, both of which will be subsequently described.
  • the principal function of the shaft 64 is to ,operate a looper 92, which will be described in detail hereinafter.
  • Cams 66 and 83 on the main drive shaft 8 serve to oscillate the shafts 63 and 64 in one direction and suitable coil springs 11 and 85 (Fig. 2) are provided for rocking the shafts 63 and 64 in the opposite direction.
  • spring 11 is mounted on shaft 63 adjacent the forward portion thereof,' and one end is looped about a pin 2
  • 0 is mounted on the shaft 84, and one end of spring 85 engages .together moving rearwardly. Iclearly illustrated in Fig. 4 of the drawings, and
  • a cutter supporting arm 13 Extending upwardly from the rocking head 68 on shaft 63 is a cutter supporting arm 13 (Figs. 1, 3 and 4) having' a suitable screw threaded opening in the free extremity thereof to receive a set screw 14, this screw also passing through a reversible rectangular shaped knife or cutter 15, as shown in Figs. 4, 4a and 5.
  • the knife or cutter 15 When it isdesired to cut the loops as formed, the knife or cutter 15 will be secured and firmly held in the free extremity of the arm 13, but when it is desired to produce a tufted fabric with uncut loops, the knife or cutter 15 may be removed by disengaging the set screw 14 from the extremity of the armt13.
  • the upper and lower edges of the knife or cutter 15 are similarly sharpened and when one edge becomes dull, the knife may be r reversed to bring into operation its opposite sharper edge, thereby materially saving time in the effective operation of the machine o'r the cutting implement of the latter.' It will also be understood that a number of these knives or cutters 15 will be furnished as a part of the equipment of the machine, and a new cutter may be readily applied to the arm 13 to replace another in the event of excessive wear, and moreover, any one of the cutters may be sharpenedvto a certain extent without impairing the operation of the cutting mechanism.
  • Needle guide One of thefeatures of the present invention renderednecessary by the use of the oscillating gripper rest
  • a collar 206 which is provided with a radially extending oscillating nger 201 having a rearwardly bent portion which passes through the aperture 205, and in this manner oscillation of the shaft 63 serves to oscillate the needle guide bar 200 intimed relation to the needle I5 and cutter 15.
  • a shank 89 is secured, which has on the upper extremity thereof a looper hook or extended bill 90.
  • 'I'his hook includes a rearwardly extending looped portion 9
  • 03 is carried by a. bolt
  • said abutment may be raised or lowered slightly by releasing said bolt and moving it upwardly or downwardly in the slot 02 and again tightening it.
  • 03 ⁇ is ⁇ shaped soas to permit 4the cutter 15. to just pass the same. It position is adjusted so as to allow the looper 92 to pass over it and to provide a snug fit between the two members (see Figs. 18 and 20) By makthe goose neck 6.
  • 08 is provided, having short narrow slots
  • 08 has been specially designed in the present instance to guide rows of stitches previously made in the goods, and to prevent them from getting in the way of the needle while another line of stitching is being made.
  • the tongue includes a rounded raised portion 2 I 8, at the sides of which are grooves 2
  • 1 is similarly modied, being provided with a downwardly extending rounded tongue 22,0 with grooves 22
  • the raised tongue or boss on thethroat plate presses the lines of stitching on either side of same into the grooves and effectively keeps them out of the way of the needle in making a. new line of stitch- Presser foot bar lreleasing mechanism The upper portion of the presser foot.
  • bar I6 is engaged by the forward end of a lifting lever
  • a link 8 has its upper end con# nected to the rear end of the bar I
  • 20 is again bent to the right as shown at
  • Thread tensioning mechanism The thread tensioning .mechanism has been briey referred to, and as shown is similar to that set forth in Gladish Patent No. 1,800,522, granted April 14,- 1931, except that the'tensioning mechanism in the present device is designed for use with a single needle and single thread. while in the application referred to a plurality of needles with a plurality of strands are employed.
  • the purpose of the tensioning means is, of course, to maintain the thread in taut condition during the formation of the loops.
  • a clamping or holding means for the thread 21 is located in the upper front portion of the goose neck 6.
  • This device comprises a forwardly projecting bearing
  • This'sleeve has ⁇ at its forward end a tubular head
  • this tensioning device serves to hold the thread taut while the loops are being formed in the goods, but automatically releases the thread or yarn in time for the taking of Vanother stitch, the whole operation being automatically timed in definite relation to the other operations of the machine, by reason of the fact that the cam which operates the tensioning device is
  • the operation of the device is similar in many respects to that of the machine set forth in Gladish Patent No. 1,575,570 and is designed to form similar tufts. The same series of operations takes place as in the patent, and the elements common to the two machines operate in a similar manner.
  • Figs. 6 to 9 inclusive are diagrammatic views designed particularly to show the relative movements of the gripper 59, the additional gripper
  • Figs. 10, 11 and 12 are detailed sectional views showing the varying relations of parts during the different operations of the mechanism. With these figures in mind, the operation of the device will be evident from the following description.
  • the looper hook 9 0 will extendv between the portions of the previously-formed loop which have been cut by the knife 15, of which the cutting edge will extend into the slot of the looper hook,'both portions of the cut loop will be gripped between the gripper 58 and its asso-- ciated rest
  • 93. will be positioned against its associated rest
  • 56 will be caused to release the strand
  • the feeders 24 will be moved 4forwardly
  • the presser foot will be lowered
  • the gripper 58 and its associated rest with theportions of the severed loop between them will be moved rearwardly below the gripper
  • the looper hook 90 will be moved out of the patchof the needle I5.
  • the needle guide bar 200 will be moved behind the needle to guide the needle and the looper hook 90 will havebeen ⁇ moved out ofthe path of the needle, as shown in Figure 4a.
  • 93 will have been moved against its rest
  • the gripper 59 will be moved away from its rest
  • the looper hook 90 will enter between' the 10 needle and the thread to form another loop, as shown in Figure 4a, the presser foot will be raised, the feeders 24 will be moved upwardly and rearwardly to advance the fabric, the slide rod will be caused to grip and apply tension to the strand, A15 and just before the needle reaches its uppermost position shown in Figure 5 the gripper 59 will be caused to again move against its rest
  • the stroke of the feeders 24 may be varied as desired by engaging the yoke 22 with any desired one of the cams 23, 23a or 23h.
  • the tension of th thread may be adjusted as desired by adjusting the set collar
  • the combination with a reciprocating needle, means for guiding a strand thereto, loop forming mechanism comprising a fixed abutment, a reciprocating looper bill movable toward and from said abutment, a pair of separately movable gripper arms and abutments with which said gripper arms cooperate for holding portions of successive loops during operation of the needle to pro 45 quiz successive loops of uniform dimensions.
  • the combination with a reciprocating needle, means for guiding a strand thereto, loop forming mechanism, comprising a looper bill, and means for holding'portions of successive loops during the operation of the nfedle to produce successive loops of uniform dimensions said means comprising a gripper rest and a gripper arm having a reciprocating movement toward and from said gripper rest, said gripper rest and gripper arm having a swinging movement in synchronism and substantially at right angles to the reciprocating movement of the gripper'arm, a swinging cutter for severing loops formed from the strand, and a rest for supporting the lowerend of the needle while in lowered position, said rest being movable operation of the needle to produce successive loops of uniform dimensions, said 'means comprising a gripper rest and a gripper having a reciprocating movement toward and from said gripper rest, said gripper rest and gripper having a swinging movement in synchronism substantially at right angles to the reciprocating movement of the gripper,
  • a sewing machine including a reciprocating needle and means for guiding a strand to the latter, a normally fixed looper abutment, a looper having a swinging movement toward and away from said abutment and partially movable over the latter with a snug t between the two, said abutment being adjustable to insure such close fit, and loop holding mechanism including a gripper rest and a main gripper arm unitarily movable in the direction of movement of the goods in which the loops are being formed, said gripper arm having also a reciprocating movement toward and from the gripper rest for periodically gripping and releasing portions of successive loops at different stages of the .operation of said needle, a stationary abutment above the looper abutment, and an auxiliary gripper arm movable toward and away from said second abutment and operating at different intervals than the main gripper.
  • a sewing machine including a reciprocating needle and means for guiding a strand to the latter, a normally xed looper abutment, a looper having a swinging, movement toward and away from said abutment and partially movable over the latter with a snug fit between the two, and loop holding mechanism including a gripper -rest and a main gripper arm unitarily movable in the direction of movement of the goods in which the loops are being formed, said gripper arm having also a reciprocating movement toward and from the gripper rest for periodically gripping and releasing portions of successive loops at diierent stages of the operation of said needle, a second stationary abutment above the looper abutment, ,and an auxiliary gripper arm movable toward and away from said second abutment and operating at diiferent intervals than the main gripper, and a loop cutting mechanism cooperating with said lcop forming and holding mechanisms, for severing the successive loops from the main strand carried by the needle while the needle is in raised
  • a main loop gripper arm, and a gripper rest having a swinging movement to and fro in the direction of movement of the work material
  • said gripper arm also having a reciprocating movement to and from the gripper rest for periodically gripping successive loops being formed in the work material
  • a stationary gripper rest and an auxiliary loop gripper arm having a swinging movement toward and from the stationary rest at intervals different from the reciprocating movement of the main gripper arm.
  • a work support to receive Va fabric thereon, a vertically reciprocating strand-carrying needle movable through the work support and fabric, means for intermittently advancing the fabric relative to the work support, loop forming ⁇ means cooperating with the needle for intermittently forming successive loopsfin the fabric from; a strand carried by the needle while the needlev is in lowered position,'and two'sets of loop retaining devices adapted jointly to hold portions of successive loops during different periods of loop formation, one set of loop retaining devices comprising a gripper rest and a main gripper arm unitarily movable with the movement of the fabric advancing means,said gripper arm having also a reciprocating movement toward and from the gripper rest, the second set of loop retaining devices including a fixed abutment and an auxiliary loop gripper movable to and from the fixed abutment at different intervals than the reciprocating movement of the main gripper arm.
  • a work support to receive a fabricv thereon, a vertically reciprocating strand-carrying needle movable through the work support and fabric, means for intermittently advancing the fabric. relative tc the work support, loop forming nieans cooperating with the needle for intermittently forming successive loops in the fabric from the strand carried by the needle while the needle is in lowered position, and two sets of loop retaining devices adapted jointly to hold portions of successive loops during different periods of loop formation, one set of loop retaining devices comprising a gripper rest and a maingripper arm ⁇ unitarily movable simultaneously with th'e movement of the work feeding means, said gripper arm having also a reciprocating movement toward and from the gripper rest, the second set of'loop retaining devices lncluding a fixed abutment and an auxiliary loop gripper movable to and from the fixed abutment at different intervals than the reciprocating movement of the main gripper arm, and loop cutting means operating in timed relation to the
  • a work support to receive a fabric thereon, a vertically reciprocating strand-carrying needle movable through the work support and fabric, means for intermittently advancing the fabric relative to the work support, loop forming means cooperating with the needle for intermittently forming successive loops in the fabric from the strand carried by they needle while the needle is in lowered position, and two sets of loop retaining devices adapted jointly to hold portions of successive loops during dverent periods of loop formation, one set of loop retaining devices comprising a gripper rest and a main gripper arm unitarily movable simultaneously with the movement of the work feeding means, said gripper arm having also a reciprocating movement toward and from the gripper rest, the second set of loop retaining devices including a fixed abutment and an auxiliary loopgripper movable to and from the xed abutment at diierent intervals than the reciprocating movement of the main gripper arm, and loop cutting means operating in ⁇ timed relation to the loop forming means
  • the combination with a reciprocating needle, means for guiding a strand thereto, loop forming mechanism comprising a looper rest, a looper bill movable toward and from the looper rest, and means for holding portions of successive loops during the operation of the needle to produce successive loops of uniform dimensions
  • said means comprising a gripper rest and a gripper arm having a reciprocating movement toward and from said gripper rest, said gripper rest and gripper arm having a simultaneous swinging movement at substantially a right angle'to the reciprocating movement of the gripper arm, and a loop cutting device mounted to swing on a fixed axis and operating in timed relation to the looper bill, but in opposite directions from the latter, for severing successive loops formed by the looper fill from the strand carried by the needle.
  • the combination with a reciprocating needle, means for guiding a strand thereto, loop forming mechanism comprising a looper rest, a looper bill movable toward and from the looper rest, and means for. successively holding loops formed by said looper bill during each reciprocation of the needle from the strand carried by the needle, said means comprising a gripper rest and a gripper arm having a reciprocating movement toward and from said gripper rest, said gripper rest and gripper arm being unitarily movable substantially at a right angle to the direction of movement of said looper bill and transversely of the path of movement of the needle during each rising movement of the needle and said gripper arm being movable relatively to said gripper rest substantially at a right angle to said rst direction of movement, the unitary movement of said gripper rest and gripper arm and the movement of said gripper arm relatively to said gripper rest being so timed with reference to the movement of the needle that the gripper arm is out of the path of the needle during the descent of
  • the combination with a reciprocating needle means for guiding a strand thereto, loop forming mechanism comprising a looper rest and a looper bill movable toward and from the looper rest and operative during e-ach reciprocation of the needle to form a loop from a strand carried by the needle, means for holding each loop as formed, said means comp-rising a gripper rest and a gripper having a reciprocating movement toward and from said gripper rest, said gripper rest and gripper having a unitary swinging movement substantially at a right angle to the reciprocating movement of the gripper, a stationary gripper rest, an additional gripper having a reciprocating movement toward and from said stationary rest, and a cutting mechanism cooperating with the loop forming and holding mechanisms and operative to sever each loop as formed while it is held by the first-named gripper rest and gripper arm.
  • a throat plate including a tongue having a needle receiving slot at one end thereof, said plate havplate also having a tongue extending from onev end of said slot, said tongue being slotted at its free end to permit reciprocation of a needle therethrough, said plate having on its upper surface a boss adjacent the end of said tongue opposite the needle slot and grooved portions at the sides of the raised boss.
  • a reciprocating needle adapted to pass through a fabric, means for guiding a strand to said needle, and a loop forming mechanism adapted to form a loop in the thread carried by the needle after the latter passes through the fabric, means for holding and moving said loop in the' direction of movement of the fabric in the machine, means operative to hold the loop after it has been moved by said rst mentioned holding means, during the remainder of the reciprocation of the needle in completing the succeeding loop, a cutter operative to cut the loop while it is on the loop-forming mechanism, and a needle guide movable into position to guide the needle after it has passed through the fabric and movable out of the way of the cutter when the needle is withdrawn from the fabric.
  • cluding a work support a reciprocating needle adapted to carry strands through the Work suplport and the work thereon and means for guiding a strand to the needle, and a looper adapted to form a loop in the strand carried by the needle beyond the work support, gripping means operative to grip such loop and move it in the direction of movement of the Work in the machine,
  • loop gripping means comprising a gripper operative to grip a strand of the said loop and move it in the direction of movement of the Work in the machine, and a second loop gripping means operative to grip and retain the said strand in its new position While the first mentionedgripper returns to its position to grip the next loop.
  • loop gripping means comprising a gripper arm fixed against movement laterally of the' needle and a second gripper arm mounted to reciprocate laterally of the needle, said gripper arms being mounted to rock on a common axis, in the direction of movement of the Work through the machine, and means for separately rocking said gripper arms.
  • a gripper arm adapted to ⁇ reciprocate latorally-of the path of the Work-to a position adjacent a fixed abutment and means for holding means for holding and moving the loops in the direction of movement of the work and a gripper adapted to retain the loops in their advanced position.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Connection Of Plates (AREA)
  • Floor Finish (AREA)
US412821A 1929-12-09 1929-12-09 Tufting attachment for sewing machines Expired - Lifetime US2004834A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US412821A US2004834A (en) 1929-12-09 1929-12-09 Tufting attachment for sewing machines
GB15545/31A GB381553A (en) 1929-12-09 1931-05-27 Improvements in or relating to tufting machines
GB22042/32A GB381566A (en) 1929-12-09 1931-05-27 Improvements in or relating to sewing machines
GB22041/32A GB381565A (en) 1929-12-09 1931-05-27 Improvements in or relating to sewing machines
FR718467D FR718467A (fr) 1929-12-09 1931-06-10 Perfectionnements aux dispositifs de formation de touffes établis à titre d'appareils accessoires de machines à coudre
DEC44957D DE603990C (de) 1929-12-09 1931-06-16 Naehmaschine zur Herstellung von Bueschelwerk auf Geweben
US631907A US1947436A (en) 1929-12-09 1932-09-06 Sewing machine

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US412821A US2004834A (en) 1929-12-09 1929-12-09 Tufting attachment for sewing machines
GB15545/31A GB381553A (en) 1929-12-09 1931-05-27 Improvements in or relating to tufting machines
FR718467T 1931-06-10
DEC44957D DE603990C (de) 1929-12-09 1931-06-16 Naehmaschine zur Herstellung von Bueschelwerk auf Geweben

Publications (1)

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US2004834A true US2004834A (en) 1935-06-11

Family

ID=27257270

Family Applications (2)

Application Number Title Priority Date Filing Date
US412821A Expired - Lifetime US2004834A (en) 1929-12-09 1929-12-09 Tufting attachment for sewing machines
US631907A Expired - Lifetime US1947436A (en) 1929-12-09 1932-09-06 Sewing machine

Family Applications After (1)

Application Number Title Priority Date Filing Date
US631907A Expired - Lifetime US1947436A (en) 1929-12-09 1932-09-06 Sewing machine

Country Status (4)

Country Link
US (2) US2004834A (de)
DE (1) DE603990C (de)
FR (1) FR718467A (de)
GB (3) GB381553A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725023A (en) * 1952-12-23 1955-11-29 White Sewing Machine Corp Sewing machine
DE1085756B (de) * 1955-02-08 1960-07-21 Alphonse De Koninck Maschine zum Anbringen von Fransen an Teppichen od. dgl. Grundstoffen
US3735715A (en) * 1972-01-24 1973-05-29 W Passons Apparatus for tufting uniform cut pile

Also Published As

Publication number Publication date
GB381553A (en) 1932-09-27
FR718467A (fr) 1932-01-23
DE603990C (de) 1934-10-13
GB381565A (en) 1932-09-27
GB381566A (en) 1932-09-27
US1947436A (en) 1934-02-13

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