US1116693A - Cloth-reeling device for embroidering-machines. - Google Patents

Cloth-reeling device for embroidering-machines. Download PDF

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US1116693A
US1116693A US63800811A US1911638008A US1116693A US 1116693 A US1116693 A US 1116693A US 63800811 A US63800811 A US 63800811A US 1911638008 A US1911638008 A US 1911638008A US 1116693 A US1116693 A US 1116693A
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fabric
rollers
shaft
roller
operating
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US63800811A
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Joseph A Groebli
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
    • D05C9/08—Appliances for holding or feeding the base fabric in embroidering machines in machines with horizontal needles
    • D05C9/10—Work holders or carriers
    • D05C9/12—Holding or stretching arrangements for the base fabric in embroidery work holders

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  • I preferably distribute the power yto the several branches of the mechanism from a common source.
  • the tambour frame is adapted to be moved in any direction in its plane, and its movements should not be materially impeded
  • FIG. 1 is a rear elevation of an embroidering machine, showing only such parts thereof, as are necessary to teach the application of my invention, in which view the greater part of my improvement-s are shown.
  • Fig. 2 is an enlarged elevation with parts broken away, showing various controlling and operating parts of the mechanism.
  • Fig. 3 is a sectional view showing the device for turning the rollers for reeling the fabric.
  • Fig. 4 is a sectional view showing the device for placing the tension on the sides of the fabric, generally referred to as side clamps.
  • Fig. 5 is a sectional view showing the supporting brackets placed near the middle of fabric rollers, and adapted to prevent sagging of the rollers and prevent distortion when the fabric is reeled taut, Fig.
  • FIG. 6 is a sectional view showing parts forming a continuation of the upper part of Fig. 5, and also Fig. 3, Fig. 7, is an elevation of the belt shipper which controls the starting and stopping of the various mechanisms
  • Fig. 8 is an elevation of the mechanism for controlling the direction of operation of the several mechanisms
  • Fig. 9 is a face view of the cam for operating the side tension devices
  • Fig. 10 is a face view of the cam controlling the mechanism which turns the fabric rollers
  • Fig. 11 is a sectional view taken on the line 11-11 of Fig. 2
  • Fig. 12 is a sectional View taken on the line 12-12 of Fig. 4, showing the side clamping rollers
  • Fig. 13 is a sectional view taken on the line 13-13 of Fig 2, Fig.
  • Fig. 14 is an elevation of a modification of certain parts, by which some of the mechanism may be thrown out of operation
  • Fig. 15 is a view showing means for throwing one of the fabric rollers out of operation
  • Fig. 16 is a face view showing the cam which operates the brackets and the device for placing tension on the fabric between the rollers.
  • a tambour frame Arranged to move in a vertical plane, is a tambour frame, consisting of the longitudinal bars 5 and 6 forming the top and bottom of the frame, which are connected by the end bars 7 andS, the four bars forming the ordinary movable tambour frame of the embroidering machine which is subject to movement in any direction in its vertical plane.
  • a counter balancing machanism of approved type in the lower part of Fig. 1. This yconsists of the angle levers 9 and 10, fulcrumed on the ⁇ studs 11, and 12, at opposite ends of the machine and the arms 13, of which levers are provided ⁇ with rollers 14, upon which the tambour frame is supported.
  • the arms 15, of these levers extend upwardly and are connected by a longitudinal strap or rodi 16 which causes, the angle levers, to act in unison and to raise and lower both ends of the tambour frame alike.
  • ⁇ l have provided preferably at oppoeite ende ofthe niaehine, the 'upright shattsk Whieh are revolved by the horizontal Shaft through the initer gears flland Sleen- ⁇ neeted with the respective shal'te.
  • Gn eaeh ehel't Q9, l have provided a eollar which can be adjusted .in its position throngh the bolt 35, and between this eolfiw will not be eullieient friction between the eollar Si, and Worin
  • the amount oli lirie tion between the worin 32, and Collar fill' and therefore the limit ol Stresa whieh will be placed upon the abrie in the reeling operation, adjusted by moving' the Collin: f-l17 to platee more or lees streets on the spring 3G, and therefore more or lirietion between the worin and the eollar 37 againet which i 'the epringpreeeee the Worin.
  • the worin 38 however9 movable longitndinally Ato a Slight extent on the shalt 29, and to per- Ainit ⁇ thieI the worm is secured 'to the shaft by a feather jll., in the shaft Fig. l).
  • .lhe "worm therelore revolves Vith, but is movable longitudinally along7 the shaft.
  • lllhe is ⁇ duplicated lor the lower roller olg the second pair .if two pairs of rollers are enniloyed and the worms for all four rolle/re ⁇ are preferably nionnted on theta'e nhaltsf), at eaeh end of the machine.
  • the worin 32 and gear :lil are preferably ⁇ of greater piteh than the worin 38, and gear 39, so that "when the eha'lt 2!) ie revoliierl, the upper roller o1 each pair will be revolved Somewhat faster than the lower roller, until the tension oli' the cloth beeoniee too great, in which event the worm 32, will lelip.
  • These bars carry arms 44, one for each of the worms 38, which engage against the lower end of the lower worms B8, and retain the latter in the position shown in Fig. 3.
  • the rods are moved up anddown at certain times to cause the worms 36 to revolve the lower rollers at certain times. This is in addition to the movement caused by the shaft 29, and is independent thereof, so that such additional movement may be independently controlled.
  • Each of the rods 42 carries an arm (see Fig. 6) on its upper end in which turns a threaded portion 46 of the shaft 47.
  • the shaft 47 revolves in the journals 48, in the tambour frame and there is provided thereon a collar 49 and a collar 50 between which is a coiled spring 5l.
  • each collar 50 is a miter gear 52, loose on the shaft, and this gear frictionally engages with the collars 50, and 50,
  • the tension of spring 51 may be adjusted to determine the resistance which the miter gear 52, must overcome before slipping between collars 50 and 50a.
  • the gear miters with gear 54 on one of the longitudinal shafts,- preferably the uppermost one 2l, of the series; and the shafts 47 at each end of the machine thus receive their operating force.
  • brackets 56 and 57 rigidly to the upper and lower horizontal l bars 6 and 5, of the tambour frame and this supports two of the brackets, 56 and 57, which I prefer to make rigid.
  • These curved brackets 56 and 57 engage over the lower roller of each pair, or the fabric which is reeled thereon, and prevent the tension of the fabric from distorting the rollers, between their ends.
  • These brackets need not be moved by the operating mechanism, but they can be adjusted by the bolts 58, to the required position.
  • I have provided an upright bar 59 upon which are provided the curved brackets 60, which engage under the middle portion of the upper rollers of the two pairs, or under the fabric, on ⁇ the rollers, and the bar is adapted ⁇ to be moved up or down by suitable mechanism.
  • I preferably employ the samekind of device asis used to operate vthe rod 42 and which is shown in Fig. 6.
  • Thebar 59 has a journal in which the threaded end46, of ajshaft 47 turns, and this shaft is provided with the same elements and operates in the same way as the shaft 47 of the previous description.
  • the miter gear 52 on'this shaft is operated preferably by the miter 60 on the same shaft 21, that operates the shafts 42. ⁇
  • the raising of the bar 59, and therefore the brackets 60 causes the upper rollers to be supported in their intermediate portion, thereby preventing sagging of the'rollers and slackness or distortionfof the fabric.
  • the lower rollers are not necessarily pro ⁇ vided with brackets engaging under them,
  • the next branch of the mechanism relates to the device for placing the longitudinal stress upon the fabric, and consists of means at each end ofthe machine for engaging the fabric and exerting stress in opposite directions.
  • Preferably near each end of the tambour frame I provide an annularly grooved roller 62, which is journaled between brackets 63 at each end thereof and the roller is free to revolve upon its bearings.
  • the brackets 63 are carried on a shaft 64, fulcrumed'in stationary brackets 65 on the tambour frame and the brackets 63 are so shaped and disposed, as to bring the roller 62, on the rear side of the fabric whichl is stretched between the pair of fabric rollf ers; and I prefer to dispose the roller 62, between the fabric rollers of each pair.
  • pin roller 66 is journaled in the brackets 67,-
  • the shaft 71, of the pin roller is provided with a cani 72 and the shaft 64, of the grooved roller is provided with an arm 7 3 having ⁇ a roller 7st which engages in the groove 7 5, of the cam, and when the shaft of the pin roller is oscillated to engage or disengage the pins with the fabric the cam 72 acting on the arm 7 3, rocks the shaft 641-, and moves the grooved roller G9, toward or from the pin roller, to cooperate in the engaging or disengaging of the fabric.
  • There is a plate 76 mounted near the pin roller which forms a sort of comb and the slots 77, of this ⁇ comb are in line With the pins G8.
  • the grooved ⁇ roller resses the fabric into contact with the periphery of the pin roller and the latter is revolved to the left in Fie'. 19, the frictional contact between rollers 62, and 66 will place the fabric under tension and then the pins G8 pass through the fabric and into the grooves ⁇ 70, of the grooved roller G2, and the pin roller continues to turn until ⁇ the proper lateral stress has been laced on the fabric in the longitudinal direction of the machine.
  • the roller 62 is swung ⁇ out on the arms G3, and the roller 66 is revolved reversely to its pre-V vious movement, when the pins 68 will pass through the slots of the comb 7 G, and disengage from the fabric which will thus release the end .clamping device from the fabric, to permit of the reeling operation of the fabric rollers.
  • the grooved roller 62 is free to revolve with the pin roller under frictional contact therewith.
  • the shaft 71, of the pin roller extends upward, passing through a suitable journalin the tambour frame, and is provided with a gear 7S which miters with a 79, on the lowermost ⁇ longitudinal shaft 19, from which lattergthe shaft 71 receives its operating force.
  • the side tension mechanism just described is duplicated at the opposite end of the machine, but it isarranged to operate ina re verse direction, so that the pin roller von the right will pullon Athe fabric in the ⁇ opposite direction to that on the left.
  • the same vvill preferably be (luplicated for the fabrics of both pairs of rollers.
  • I preferably mount the means for controlling the operations of the shafts on the tambour frame.
  • I have provided means for predetermining the extent of the reeling operation of the ⁇ fabric rollers, which means can be set to cause the same to operate any desired amount, and when the means are so set the .movement may be initiated by the operator; and ⁇ the mechanism Will anton'iatically stop ⁇ when the ⁇ various operations have been completed.
  • ⁇ E550, 8l which have suitable b xarings for ⁇ the several longitudinali shafts and in addition I have provided a yolrc 82, for supporting various working parts at one end of the tambour frame.
  • each of the longitudinal shafts I have provided miter gears 83, Se, and and arranged substantially vertical, and passing through the yoke S2, in which it journals, I provide a shaft 86 on Which are arranged means for transmitting power from an external source to the longitudinal shafts.
  • each of Wlrich carries a pair of miter gears90, 91 and either of which is adapted to mesh with one of .thomiter gears 83, S4; or 85 on .the ⁇ respective longitudinal ⁇ shafts 19, 29 and
  • Each ofthe ,sleeves is movable longitudinally onthe shaft 8G, and arms 92, are keyed on the shaft 86, and each has a key 93, -which engages in a ⁇ hole in the miter ⁇ gears 99, so that each sleeve will be revolved With the shaft zand still be movable ⁇ along the shaft.
  • the arrangement of the ⁇ several pairs of gears 90, 91 is such that if ⁇ the upper geariof either sleeve is ⁇ thrown into mesh Withthe gear of its.corresponding shaft, the latter ivillfbe causedto revolve in one direc ⁇ tion
  • the longitudinal shaft will remain idle.
  • the several sleeves 87, 8S and 89 arecontrollod by three levers 91, ⁇ 95 and 96, fulcrumed at 97, 98 and 99, upon the yoke; andthe roclring of these levers Will control the operations of the longitudinal shafts through the meshing of the several gears of the sleeves.
  • the power ⁇ for ⁇ operating these several levers 911, 95 and96 is preferably derived from the shaft 86, itself.
  • the shaft 8G is provided near its "lower end ⁇ with a Worm 100, which, through a vvorm gear 101, revolves the shaft 109, carried upon :the yoke, and upon this shaft 102, is therefore revolved vvheneve ⁇ the shaft 86, revolves.
  • the cam 118 performs the operations similar to those just described with relation to the levers 106, and 96, and sleeve 89, but the lengths of the rises and falls of the cam race will be so proportioned as to properly time the movements of the levers so as to cause the results referred to hereinafter, in the description of the operation of the mechanisms.
  • i 95 which controls the movements of the fabric rollers, however, is somewhat different from cams 110 and 118 and is shown in Fig. 10.
  • the bowl 119 of the lever 105 is affected by the cam 120, in the following manner. Assuming the cam 120 to be revolving right hand in Fig. 10, while the bowl. 119 is engaged by the concentric portion 121, of this cam, the levers 105 and 95, will be in the position shown in Fig. 2, and gears 90 and 91, will both be out of mesh with the gear 84, and the middle horizontal shaft 20, and therefore the fabric roller will be idle.
  • the cam plate 125 is made adjustable, so that the time of the return movement of levers 105 and 95, can be adjusted according to the amount of movement to be imparted to the fabric rollers. By turning the thumb screws 126 the plate 125 can be moved in the arc of a circle the screws 126, traveling in slots 127 in the cam. The position of the plate 125 can thus be adjusted to bring the lever 105 back at any required time, to stop the movement of the fabric rollers after a predetermined amount of fabric has been reeled.
  • the lever 95 which operates the sleeve 88 is somewhat different from the levers 94 and 96.
  • the arm 95, fulcrums from the stud 98 and the other arm 129 thereof forms a handle to be gripped by the operator.
  • a clutch 130 is arranged to fulcrum on the pin 132, carried by the arm 129, and has a recess 131, which receives the pin 134, on the arm 128.
  • the clutch130 is held in engagement with the pin 134 by a spring and when the clutchis thrown in, as shown in Fig. 2, the lever 95, is subject to the move mentsl of the bar 108 and therefore is controlled by the operating cam 120.
  • the operator grips the arm 129 and by pressing the handle 133, disengages the clutch from the pin 134, when the lever 95, can be rocked by hand. lVhen thus disengaged, the lever 95, can be rocked and in consequence either the gear 90 or gear 91 can be thrown into mesh with the gear 84, and the fabric rollers thereby turned in either direction; and when the proper movement has taken place the lever 129-95 may be rocked to the intermediate position and both gears 90 and 91 will be outof mesh.
  • the clutch rengage the pin 134 and the mechanism will again be subject to the automatic control of the cam 120.
  • l preferably take my operating poiver from a counter shaft mounted upon the ceiling or in any ⁇ other suitable location; tl'iough any other source of power, may be utilized.
  • l Upon this shaft 135, l have provided a loose pulley 136 and a fist pulley 137 over which a belt (not shown) operates to revolve the counter shaft 135.
  • a belt shipper 138 By shippingthe belt from one of these pulleys to the other the shaft 135, can be started or stopped, in ivell known manner.
  • l have provided a belt shipper 138 for this purpose which is provided with a weight 130, and with a brake shoe 14:0, for engaging the fast pulley, to stop the shaft.
  • a rod 141 is employed.
  • rlhe shaft 135, is provided. with a gear 142, which miters with the gear 11113, on a short shaft 1-1-1 directed dovf'nivard.
  • the latte shaft is connected by a universal joint with a downward extending telescoping shaft, consisting of the part 1116, -which extends into the sockets 148, of the part 147 and has a groove 149 in which a pin 150 on the part 118 engages.
  • the tivo parts of this shaft are adapted to telescope to allow for the movement of the tambour frame relative to the source of poweru
  • the end et the telescoping shaft is connected by a universal joint 151, With the shaft 8G, and by this connection ⁇ the operating force is transmitted to the various mechanisms on the tambour frame.
  • a trigger 15111 Upon the stud 152, on the yoke 82, l have fulcrumcd a trigger 15111, the upper end of which engages, and is engaged by, a stop 150 carried by the starting and stopping rod 1-il1.
  • the end of this trigger is engaged by a pin 157 on the side of the Worm gear 101, ⁇ so that lupon each revolution of the shaft 1.02, and its cams, the trigger 154i, will be tripped to release the controlling rod 1411, as will appear hereinafter; or it may be released. by hand at any time the operator de sires.
  • the attemflant will then pull doivn on. the starting rod lll, to set the mechanism into operation.
  • Vlhcn the rod is drawn down the belt shipper Wil shift the belt to the fast pulley 137, on the counter shaft, when the latter will be set in motion.
  • the telescopios' shaft will be revolved and the telescoping shat't transmits the (mei-ating force to the sh f 8h.
  • the revolution. of shaft titl causes the sleeves 87, 88, bevel gears to revolve therewith; and through the Worm 100, and worm gear 101, the shaft 10:2, which carries the cams 110, 118 and 120 is caused to revolve.
  • the threads al@ of the shaft 47 will 0perate on the block a5, to move the rod 4:2, downwardly and as the arms la, are carried on this rod they will be lowered and the worms 38, will move down therewith, when the lower rollers 25, will turn, under the tension of the fabric, sufficiently to relieve the fabric of the vertical stress.
  • the same longitudinal shaft 21, operates through gears 60a and 52, to turn the shaft 117, near the middle of the machine and the threads 4G, thereof will act through the block i15 to lower the bar 59, on which the brackets 60 are carried. This releases the brackets 60 from the upper roller of each pair, so that the latter may be revolved.
  • the cam 118 now shifts the sleeve 89 to the intermediate position and this part of the mechanism stops. T he release of the tension upon a f the fabric caused by the movement of the rod a2, will permit the lower rollers to sag sufficiently to release them froml contact with the brackets 5G. The tension is now taken off the fabricand the brackets are free, so that the fabric is free-to be reeled up.
  • the cam 120 will act upon the lever 105, and through the rod 108, the lever 95, will be rocked to reciprocate the sleeve 88, and throw the gear 90 of this sleeve into mesh with the gear 8l, of the intermediate longitudinal shaft, when the latter will be set in motion.
  • rhe gears 31, of this shaft 20, acting on the gears 80 will revolve the shafts
  • the worms 32, and 38 revolve with the shafts 29 and they act respectively on the worm gears 38, and 39 to revolve the fabric rollers and reel the fabric from the lower to the upper rollers.
  • the rollers 24, will be revolved faster than the rollers 25, because of the difference in the pitch of the worms 32, and 538, and if the circamference of the fabric on the upper roller is less than on the lower rollers there will be no slack cast in the fabric between the rollers.
  • the lever, 95 can now be rocked by hand and if the handle 129 is moved down, the sleeve 88, will be moved to throw its gear 91, into mesh with the gear 84, and the fabric will be reeled ⁇ back until the handle 129 is returned to its intermediate position, when the reeling action will cease. Or if the handle 129 is raised, the gear 90 will be thrown into mesh with gear 84, and the fabric will be reeled upwardly an additional amount. It is obvious that the reeling 0f the fabric is within the control of the operator and that the automatic device can be supplemented by the hand control. ⁇ It will also be apparent that the mechanism may be operated through the hand ycontrol alone if desired.
  • rollers 00 revolve the pins 68 will pass into the fabric and will ⁇ travel through the grooves of the rollers 02.
  • the pin rollers will be revolved sui'liciently to place the fabric under tension longitudinally of the machine, but provision is made for prevent ing too great a strain on the fabric.
  • the roller 66 is loose on the shaft 71 being held between the collar 71b and a coiledspring 7111.
  • an embroidering machine embodying fabric rollers arrangedto receive the fabric one from the-other, means for eni gaging the sides of the fabric and adapted to place the same under tension after it has been shifted, means including the rollers for shifting the fabric and tensioning the same after it has been shifted, and means for causing said operations to be performed in sequence.
  • an embroidering machine embodying fabric rollers arranged to receive the fabric one from the other, means for engaging the sides of the fabric and adapted to place the same under tension, movable means for supporting the fabric ⁇ rollers intermediate their ends, and means for reeling the fabric rollers, operating said side tension devices and moving said supporting devices in sequence.
  • tension devices for engaging the sides of the fabric to place the same under tension, means for placing the fabric under tension between the fabric rollers, and mechanism adaptedto release the side tension devices, release the device for creating ⁇ a tension between the rollers, to reel a predetermined amount of fabric from one roller to the other, restore the stress on the fabric between the rollers and operate said side tension devices to place a stress on the fabric, all in the order here named.
  • an embroidering machine embody- ⁇ ing fabric rollers arranged to receive the fabric one from the other, clamps for the sides of the fabric, adapted to place the fabric under tension, movable brackets for supporting the fabric rollers intermediate their ends, and means for operating said devices in the following order, first to release said side clamps, and release the supporting brackets then to revolve the fabric rollers for the purpose of reeling the fabric, then to operate the side clamps and brackets, where- .by the clamps will place the fabric under the reeling operation, means for supportingv the rollers intermediate their ends and means for withdrawing said ⁇ intermediate support before the reeling operation and restoring it thereafter to causel the support of said rollers intermediate their ends.
  • an embroidering machine embodying fabricrollers arranged to receive the fabric one from the, other, worm gears and worms for the fabric rollers, clamps for the sides of the fabric, adapted to place the fabric under tension, movable brackets for supporting the fabric rollers intermediate their ends, and means for operating said devices, comprising means for releasing the side clamping devices and for throwing them in to draw the fabric taut, means for revolving said worms to reel the fabric, means for reciprocating a worm to place the fabric under tension ybetween the rollers, and means for operating the supporting brackets to cause them to support the fabric rollers or to be released therefrom.
  • an embroidering machine embodying fabric rollers arranged to receive the fabric one from theother, side clamps for placing a tension on the fabric and adapted to be thrown into and out of engagement with the fabric, means for operating said side clamps and means for automatically reversing the said operating means, and means for revolving the fabric rollers and adapted to be automatically operated when the side clamps are released.
  • An embroidering ⁇ machine embodying a tambour frame having reeling mechanism for the fabric, comprising a ⁇ pair of fabric rollers-,wlneans for rotating said rollers simultaneously,and the receiving roller faster than the other, and yielding means adapted to automatically maintain the desiredstress on the fabric during thei'eeling thereof.
  • An -embroidering machine embodying a tambour frame having Ireeling mechanism for fthe fabric, comprising apair of fabric rollers, means for rotating said rollers si'- multaneously and the receiving roller faster than the other, yielding means adapted to maintain the desired stress on the fabric during the reeling thereof, and means for relieving the tension before, andvrestoring it after, the reeling operation.
  • ⁇ An ⁇ embroidering machine embodying a tambour frame having a fabriereeling device embodying a pair of fabric rollers, gearing on each roller, means for operating the gears of 4each roller simultaneously, and adapted to revolve the receiving roller faster than the other roller, and yielding means for automatically regulating the stress on the fabric While it is being reeled from one rollerto the other.
  • an embroidering machine embodyinga ⁇ tambour frame, having fabric rollers, and means for operating on each end of the rollers to revolve them, comprising a cornmon shaft disposed longitudinally of the tambour frame and means forapplying the operating force of said shaft to the opposite ends of the rollers and adapted to revolve the rollers ⁇ at a lesser speed than said shaft.
  • a tambour frame havinfffab- .ricrollers ⁇ arranged to receivethe fabric one from the other, means for revolving said rollers, comprising wormgears on the opposite ends of the rollers, an upright shaft at each end of the machine provided with worms adapted to operate the worm gears of the rollers, and a shaft arranged longi tudinaliy of the machine for simultane ously operating both of said first shafts.
  • a tambour frame having fabric rollers arranged whereby the fabric may be Wound from one roller upon the other, and means for operating the rollers, embodying Worm gears by which the revolving force maybe applied simultaneously to the opposite ends of each roller, Worms for operating saidworm gears,
  • the gears and Worms for one roller being arranged to rotate the receiving roller faster than the other roller and means for resistablypermitting a roller to slip relative to its operating means.
  • an embroidering machineza tambour frame havingfabric rollers arranged to receive the fabric one from the other, ⁇ and ioo to support the fabric in an operative position, and means for revolving said rollers, comprising means for simultaneously revolving said rollers at different speeds and means whereby one of said rollersmay be allowed to slip independently of the revolution produced by the operating means.
  • a tambour frame having fabric rollers arranged to receive the fabric one from the other, and means for revolving said rollers7 comprising worm gears for each roller, a shaft and worms thereon, adapted to. operate said Worm gears, the worms and gears of one roller being of different pitch from those of the other, whereby said rollers will be simultaneously revolved at different speeds, the worm of one roller being adapted to slip relative to its operating means and a spring arranged to resist said slipping action.
  • a tambour frame having fabric rollers arranged to receive the fabric one from the other, means for revolving said rollers, comprising worm gears, for each roller, a shaft, and worms thereon adapted to operate said worm gears, the worms and gears of one roller being of different pitch from those of the other, whereby said rollers will be simultaneously revolved at different speeds, the worm of the faster roller being adapted to slip relative to its operating means and means for resisting said slipping action.
  • a tambour frame embodying fabric rollers arranged to receive the fabric, one from the other, means for revolving said rollers to reel the fabric from' one to the other, and other means for revolving one of said rollers to place a tension upon, or remove it from, said fabric.
  • a tambour frameembodying fabric rollers arranged to receive the fabric one from the other, means for revolving said rollers to reel the fabric from one to the other, and other means for independently revolving a roller to place a tension upon, or remove it from said fabric.
  • a tambour frame embodying fabric rollers arranged to receive the fabric, one from the other, means for revolving said rollers to reel the fabric from one upon the other, embodying worm gears for revolvingthe rollers, worms for operating the worm gears, means for operating the worms and means for reciprocating a worm to place a tension upon the fabric.
  • a tambour frame embodying fabric rollers arranged to receive the fabric, one from the other, means for revo-lving said rollers, to reel the fabric from one and upon the other, embodying worm gears lfor revolving the rollers, worms for operating the worm gears, means for revolving the worm gears to revolve the rollers synchronously;v and means for reciprocating a worm, independently of its revolving operation, to place a tension upon the fabric.
  • a movable tambour frame fabric rollers f thereon arranged to support the fabric in position for embroidering and to receive the fabric one from the other, means for individually operating said rollers to shift the fabric from one to the other and adapted to be operated from a source of power, and adjustable means for automatically arresting the operation of the rollers, whereby they may be set to shift a predetermined amount of fabric.
  • a tambour frame embodying fabric rollers arranged to support the fabric, and Vto receive the fabric one from the other, and means for operating therollers to reel the fabric, and adapted to be operated from a source ofp'ower, and adjustable means adapt-ed to automatically arrest the operation of the rollers, whereby theyy may be set to reel'a predetermined amount of fabric, and manually operated means for throwingsaidrollers out of operation independently of said automatic means.
  • a tambour frame for supporting the fabric, and adaptedto receive the fabric one from the other, and means for operating said rollers, comprising worm gears by which the fabric rollers are each revolved, Worms adapted to operate saidfworm gears, means for operating said worms synchronously and means whereby a roller may be shifted away from the worm to disengage its worm gear from its operating worm.
  • an embroidering machine embodying a movable tambour frame, rollers carried thereon, and arranged to receive the fabric one from the other, means carried on said tambour frame for revolving said rollers, a stationary support, a power driven shaft thereon and a flexible power transmitting means for transmitting power to said roller operating means, while the tambour frame is in its various positions and without interfering with the movements of the tambour frame.
  • an embroidering machine embodv ing means for supporting a fabric, a tension device for the fabric embodying a roller having a roiv of fabric piercing elements adapted to engage the fabric when the roller :is rotated in one direction and means for stripping thefabric from said fabric piercing elements when the ⁇ roller is revolved inthe opposite direction, and means for rei'fclving said roller.
  • Inian embroidering machine a tambour frame and fabric rollers for supporting the fabric on the tambour frame, and side ⁇ clamps for holding the sideeda'es of the fabric taut, embodying revoluble rollers neareach side edge of the fabric, and arrangedlon theneedle side of the fabi-ic, said fabric to .hold it under tenrollers having pins for piercing the fabric,
  • rollers on the shuttle side of the fabric baving grooves to receivey the pins of the said pin rollers andarranged between thefabric rollers, means for revolving said pin rollers and means for movingisaid grooved rollers toward and from the fabric.
  • an embroidering machine embodying a tambour frame and means for supporting the fabric on the tambour frame, and slide clamps for holding the ⁇ side edges of the fabric taut, embodying i'evoluble rollers having pins adapted to pierce near the side edge of the fabric, meansfor cans ing ⁇ said pins to pierce the ⁇ fabric and means for revolving said rollers, and adjustable,
  • rollers for holdingr the fabric taut, embodying shafts, rollers thereon, operated by said shafts, springs arranged to permit, but resist, the movements of the rollers relative to their shafts, said rollers having pins arranged at an angle to the radius thereof, and adapted to pierce the fabric ⁇ grooved rollers arranged on the opposite face of the fabric from said pin rollers and adapted to receive the pins thereof, shafts on which the grooved rollers are arranged to be carried whereby the said rollers may be moved toward and from said pin rollers, a cam on said first ⁇ shaft adapted to oscillate said second shaft, and means for operating said first shafts.
  • an embroidering machine having a movable tambour frame,.a plurality of fabric rollers carried thereby, a plurality ofengaging members for engaging the fabric rollers between their ends to hold them true, and common means for operating a plurality of said engaging means ⁇ from a common source.
  • An embroidering machine having fabric supporting members, a plurality of movable brackets for supporting the fabric sup porting members intermediate their ends, and operating means therefor, embodying an upright shaft for operating the brackets, and a shaft disposed longitudinally of the machine for operating the said upright shaft.
  • An embroidering machine having fabric supporting members, a plurality of movable brackets for supporting the fabric supporting members intermediate their ends, and common means for operating a plurality of brackets.
  • An embroidering machine having fabric supporting members, a plurality of movable brackets for supporting the fabric supporting members intermediate their ends, and common means adapted to be operated from a source of power and to operate a pluralityof said brackets.
  • fabric supporting and shifting means comprising means near each side of the fabric consisting of coperating means which press the fabric between them, and means yfor operating the side tension devices at bot-h sides of the fabric and adapted to cause the side tension devices to engagek and disengage the fabric and to place the fabric between them under tension while said fabric shiftingv means is inoperative.
  • a tambour frame, fabric holding means, and side tensioning means embodying means for engaging portions of the fabric while under unequal tension, drawing the fabric by slippable friction to equalize the tension of the fabric, and means for securing the fabric under tension.
  • fabrice supports an engaging member for engaging a fabric support, means for operating said engaging member, and means for terminating the movement of the said engaging member, and adapted to be controlled by ⁇ the resistance to the operation of the engaging member.
  • a mov able tambour frame In an embroidering machine, a mov able tambour frame, fabric supporting members carried thereon and arranged to support the fabric in position for embroidering andadapted to receive the fabric one from the other, means for operating both the receiving and delivering members individually to shift the fabric, and means for determining the extent of the shifting of the fabric.
  • an embroidering machine having a fabric frame, means for shifting the fabric, means for securing the fabric in a direction at right angles to the shifting movement, said securing means having elements for piercing the fabric, and meansfor causing the said piercing elements to engage and disengage the fabric.
  • an embroi dering machine having a tambour frame, means for supporting the fabric for the embroidering operation, and side tension devices adapted to engage the fabric between them, and to cause a drawing action on the fabric to smooth and ten sion thesame and means for piercing the fabric to hold it in its tensioiied condition.
  • means for supporting a fabric for the embroidering operation means for supporting a fabric for the embroidering operation, side tension devices for engaging the sides ofthe fabric and adapted to exert a stretching action on the fabric, means for operating said side tension devices and means wherebv the said side tension de vices may independently affect the action of the operating means thereon.

Description

(L. A. GRGEBL.
GLTH REELING DEVICE FOB. BMBROIDERNG MUHXNES.
APPLICATION FILED JULYll, 1911.
3 SHBETSWSHBET 1.
THE MORRIS PETERS co.. PHoTo-LITHQ. WASHING VON. t) C.
J. A. GROEBLI.
GLUTH REELNG DEVICE FOR BMBROIDBRING MACHINES.
AP PLIUATION FILED JULY 11, 1911.
Patented Nov. 10, 1914.
3 SHEETS-SHEET 2.
fn '-4 MORRIS PETERS C0.. PHm-LITh l.. WASHING ro J. A. GROEBLI.
CLOTH REELING DEVICE POR EMBROIDERING MACHINES.
APPLICATION FILED JULY 11,1911. 1, 1 1 6,693. Patented Nov. 10, 1914.
3 SHEETS-SHEET 3.
TH MORRIS PETERS C0.. PHTOLITh-m, WASHINGTON. D. C.
ploying all the features of my invention it is possible to predetermine and adjust the amount of tension which will be placed on the fabric, with due regard to the character of the material which is being used. Naturally a light net fabric will neither stand, nor require, as much tension as a heavy cotton fabric and proper adjustment must therefore be made for different fabrics.
I preferably distribute the power yto the several branches of the mechanism from a common source. As the tambour frame is adapted to be moved in any direction in its plane, and its movements should not be materially impeded, I mount the mechanism for performing the several functions upon the tambour frame, to move therewith, and I transmit the power thereto by flexible means, whereby there will be no interference with the movementsof the tambour frame. In carrying my invention to its higher development I prefer to operate the corresponding devices for performing the several functions, in synchronism with each other, and to distribute the operating forces to both ends of the machine in order to have all parts move smoothly.
In the drawings forming a part of this application Figure 1, is a rear elevation of an embroidering machine, showing only such parts thereof, as are necessary to teach the application of my invention, in which view the greater part of my improvement-s are shown. Fig. 2, is an enlarged elevation with parts broken away, showing various controlling and operating parts of the mechanism. Fig. 3, is a sectional view showing the device for turning the rollers for reeling the fabric. Fig. 4, is a sectional view showing the device for placing the tension on the sides of the fabric, generally referred to as side clamps. Fig. 5, is a sectional view showing the supporting brackets placed near the middle of fabric rollers, and adapted to prevent sagging of the rollers and prevent distortion when the fabric is reeled taut, Fig. 6, is a sectional view showing parts forming a continuation of the upper part of Fig. 5, and also Fig. 3, Fig. 7, is an elevation of the belt shipper which controls the starting and stopping of the various mechanisms, Fig. 8, is an elevation of the mechanism for controlling the direction of operation of the several mechanisms, Fig. 9, is a face view of the cam for operating the side tension devices, Fig. 10, is a face view of the cam controlling the mechanism which turns the fabric rollers, Fig. 11, is a sectional view taken on the line 11-11 of Fig. 2, Fig. 12, is a sectional View taken on the line 12-12 of Fig. 4, showing the side clamping rollers, Fig. 13, is a sectional view taken on the line 13-13 of Fig 2, Fig. 14, is an elevation of a modification of certain parts, by which some of the mechanism may be thrown out of operation, Fig. 15, is a view showing means for throwing one of the fabric rollers out of operation, Fig. 16 is a face view showing the cam which operates the brackets and the device for placing tension on the fabric between the rollers.
I have shown a stationary embroidering machine frameconsisting of end standards 1 and 2, at opposite ends of the machine, connected by longitudinal beams 3 and 4, arranged one above the other in the usual manner. Upon this stationary frame 'most of the embroidering mechanisms'are mounted and the frame varies in practice,but my' invention in no way interferes with the ordinary construction of the stationary frame.
n Arranged to move in a vertical plane, is a tambour frame, consisting of the longitudinal bars 5 and 6 forming the top and bottom of the frame, which are connected by the end bars 7 andS, the four bars forming the ordinary movable tambour frame of the embroidering machine which is subject to movement in any direction in its vertical plane. I have shown a counter balancing machanism of approved type in the lower part of Fig. 1. This yconsists of the angle levers 9 and 10, fulcrumed on the `studs 11, and 12, at opposite ends of the machine and the arms 13, of which levers are provided `with rollers 14, upon which the tambour frame is supported. The arms 15, of these levers extend upwardly and are connected by a longitudinal strap or rodi 16 which causes, the angle levers, to act in unison and to raise and lower both ends of the tambour frame alike. i
On an arm 17 of'one of the angle levers, I have provided a weight 18, which counterbalances, through the parallel motion device, the tambour frame. All of these parts are of well known construction and other known embroidering machines may be provided with my present invention.
The above parts constitute theprincipal elements of an embroidering machine, but it will be understood that there are many mechanisms used to perform the embroidering operations, none of which need be here.
provide horizontal shafts 19, 20 and 21,
which I have arranged in substantially superimposed relation and which serve to distribute the operating force through the machine so that the duplicate mechanism on each end of the machine will be operated uniformly and evenly.
Gili
` ln deeeriliing in detail the various devices :for carrying ont the several.V operatione2 l will follow the order in which the ditl'erent devices operate, in so lar it may be praetieable to do so.
l have shown my ini/en nniehine wherein two d faln'ie ll ferent pieces oil and E23 are carried upon the tambonr iframe;` as it is the LCgenfnal praetiee to Iolirollere 27 and 28, is likewise inonnted be low the liret; and ,in a position to expoee the `.l'abrio etretehed between thein before the lower rony ofineedlee in the nenal nianner.
o "lhere are thne grovided two eete or paire olf rollers which are usually alilre in all, respects and perforlnthe saine lnnotion. lt iewith 'the condition of 'the fabrie between the rollers or each pair that my invention principally has to do.
llhen the :labrie ie tiret Supplied to the rollers usually a` ouantityie placed around the loiver roller of eaeh pair andthe top end ol the 'labrie is Connected 'with the ripper roller of eaeh pair; and when the fabric between the rollers has been operated upon `by the sewing mechanisms o the fabrice are reeled oil the .lower rollers and onto the npper rollers and are linally removed when all the fabi-1e has been provided with enibroiderjy.` llenallv the ede'ee oli the labre Whieheoine near the ends of the rollers; are Called the sides; and l will so reler to them in the tollonfingl d`e` "'eL"ption. The revolving olf these fabric rol. 37 to` reel the :fabric as 1well ae the operation oli' their looking and :incidental derieee, have nenally been done by manual labor bet in my present invention this accomplished. by mechanically open ated nieehaniein.
` l have provided preferably at oppoeite ende ofthe niaehine, the 'upright shattsk Whieh are revolved by the horizontal Shaft through the initer gears flland Sleen- `neeted with the respective shal'te. `Upon the upright ehalte l hare provided the worms 39 whith .mesh Witli the Worin genre' 3th on the ende or' the upper fabric rollers olf each set; and through this connection the i upper rollers are rerolred to reel the 'abrie from the lower to the upper rollers; in ease the n'iorenient olf the fabric to talle place in eneh direetion. 'lhe worine generalli,T revolve w;
"the ehalts het are capable of Slipping on there..
` rollers.`
Gn eaeh ehel't Q9, l have provided a eollar which can be adjusted .in its position throngh the bolt 35, and between this eolfiw will not be eullieient friction between the eollar Si, and Worin The amount oli lirie tion between the worin 32, and Collar fill' and therefore the limit ol Stresa whieh will be placed upon the abrie in the reeling operation, adjusted by moving' the Collin: f-l17 to platee more or lees streets on the spring 3G, and therefore more or lirietion between the worin and the eollar 37 againet which i 'the epringpreeeee the Worin. l have o provided means for revolving the lower roller ol eaeh pair Sininltaneoneli7 with the upper rollers, bat l prefer to make a dil ence in the lower rollere operation, eo th" partial releaeine1 of the lower roller can be made-,j before the reeling-` (nner-ation takes place, eo ae to relieve the tension on the fabrie. Untlie same shafts 29 l have shown the worms 3th which ineeh with the worm gears; '39 of the lower roller and through the naine the lower rollers are revolved Simultaneously with the upper roller and .in the saine direction of movement. The worin 38, however9 movable longitndinally Ato a Slight extent on the shalt 29, and to per- Ainit` thieI the worm is secured 'to the shaft by a feather jll., in the shaft Fig. l). .lhe "worm therelore revolves Vith, but is movable longitudinally along7 the shaft. lllhe is `duplicated lor the lower roller olg the second pair .if two pairs of rollers are enniloyed and the worms for all four rolle/re `are preferably nionnted on theta'e nhaltsf), at eaeh end of the machine. l prefer to employ a :shaft 39 at each endet the machine to reduce the torsional strain on the labrie The worin 32 and gear :lil are preferably {of greater piteh than the worin 38, and gear 39, so that "when the eha'lt 2!) ie revoliierl, the upper roller o1 each pair will be revolved Somewhat faster than the lower roller, until the tension oli' the cloth beeoniee too great, in which event the worm 32, will lelip. The reason `for this di'tlierenee in piti-,h lie that the amount of illtbrie on the ripper and lower rollers will not always be the `Sandie and if the rollers are turned at the saine Speed there may at times be an undesirable elaelr east in the fabrie between the rollers if the upper roller ehonld have -'abre than the lower one, owing to the differences in the diameter of the fabric on the rollers. Upright rods 42, are mounted to move vertically in their bearings 43, in the tambour frame, and they are preferably disposed near the shafts 29. These bars carry arms 44, one for each of the worms 38, which engage against the lower end of the lower worms B8, and retain the latter in the position shown in Fig. 3. The rods are moved up anddown at certain times to cause the worms 36 to revolve the lower rollers at certain times. This is in addition to the movement caused by the shaft 29, and is independent thereof, so that such additional movement may be independently controlled. Each of the rods 42, carries an arm (see Fig. 6) on its upper end in which turns a threaded portion 46 of the shaft 47. The shaft 47 revolves in the journals 48, in the tambour frame and there is provided thereon a collar 49 and a collar 50 between which is a coiled spring 5l. Above each collar 50, is a miter gear 52, loose on the shaft, and this gear frictionally engages with the collars 50, and 50, By adjusting the collar 49, through the bolt 53, the tension of spring 51, may be adjusted to determine the resistance which the miter gear 52, must overcome before slipping between collars 50 and 50a. The gear miters with gear 54, on one of the longitudinal shafts,- preferably the uppermost one 2l, of the series; and the shafts 47 at each end of the machine thus receive their operating force. WV ien the shafts 47 are revolved, the bars 42 are raised or lowered, according to the direction of rotation of the shaft, and the reciprocative movement of the works 38 causes the lower set of rollers to be revolved in one direction or the other, thereby tightening or loosening` the fabric. I prefer to place the final vertical tension on the fabric in this way and similarly to release the lower rollers before the reeling `operation C takes place.
shown a bar connected at top and bottom,
rigidly to the upper and lower horizontal l bars 6 and 5, of the tambour frame and this supports two of the brackets, 56 and 57, which I prefer to make rigid. These curved brackets 56 and 57 engage over the lower roller of each pair, or the fabric which is reeled thereon, and prevent the tension of the fabric from distorting the rollers, between their ends. These brackets need not be moved by the operating mechanism, but they can be adjusted by the bolts 58, to the required position. The brackets which engage under the upper roller of each set I prefer to make subject to a raising and lowering device. I have provided an upright bar 59 upon which are provided the curved brackets 60, which engage under the middle portion of the upper rollers of the two pairs, or under the fabric, on `the rollers, and the bar is adapted` to be moved up or down by suitable mechanism. For raising and lowering the bar 59 I preferably employ the samekind of device asis used to operate vthe rod 42 and which is shown in Fig. 6. Thebar 59 has a journal in which the threaded end46, of ajshaft 47 turns, and this shaft is provided with the same elements and operates in the same way as the shaft 47 of the previous description. The miter gear 52 on'this shaft is operated preferably by the miter 60 on the same shaft 21, that operates the shafts 42.` By utilizing the longitudinal shaft 21, for ythe bracket mechanism fewer parts are required. The raising of the bar 59, and therefore the brackets 60, causes the upper rollers to be supported in their intermediate portion, thereby preventing sagging of the'rollers and slackness or distortionfof the fabric. The lower rollers are not necessarily pro` vided with brackets engaging under them,
because the fabric itself, when under proper.
tension prevents sagging of the lower rollers; and in fact the support of'the lower rollers is more or less taken up by the brackets 60, by reason of the fabric. It should be here noted that to the shaft 47 is secured an arm 6l, which is engaged by the journal 45 when the bar 59 or 42 as the case may be has been lowered as far as required, and if the gear 52, is revolved after this engagement takes place there will be a slipping action between the gear 52, and the collar 50, so that the shaft 47, will not revolve beyond the extent required to lower the bar 59 or 42, the required amount, a maximum suitable for all occasions.
The next branch of the mechanism relates to the device for placing the longitudinal stress upon the fabric, and consists of means at each end ofthe machine for engaging the fabric and exerting stress in opposite directions. Preferably near each end of the tambour frame I provide an annularly grooved roller 62, which is journaled between brackets 63 at each end thereof and the roller is free to revolve upon its bearings. The brackets 63, are carried on a shaft 64, fulcrumed'in stationary brackets 65 on the tambour frame and the brackets 63 are so shaped and disposed, as to bring the roller 62, on the rear side of the fabric whichl is stretched between the pair of fabric rollf ers; and I prefer to dispose the roller 62, between the fabric rollers of each pair. A
pin roller 66 is journaled in the brackets 67,-
of the tambour frame, wherein the roller is free to be revolved. `This pin roller is disposed on the opposite side of the fabric from the roller 62, and therefore preferably on the front side thereof. `The in roller is provided with tangentially disposed pins 68,
iuclining forward in the direction of the rollers rotation and these pins are disposed in line with the grooves 7 0 of the roller 62, so that when the pin roller is revolved the pins areadapted to passinto the grooves of roller 62, passing through the fabric as 'they do so. The shaft 71, of the pin roller is provided with a cani 72 and the shaft 64, of the grooved roller is provided with an arm 7 3 having `a roller 7st which engages in the groove 7 5, of the cam, and when the shaft of the pin roller is oscillated to engage or disengage the pins with the fabric the cam 72 acting on the arm 7 3, rocks the shaft 641-, and moves the grooved roller G9, toward or from the pin roller, to cooperate in the engaging or disengaging of the fabric. There is a plate 76 mounted near the pin roller which forms a sort of comb and the slots 77, of this `comb are in line With the pins G8. lVhen the grooved `roller resses the fabric into contact with the periphery of the pin roller and the latter is revolved to the left in Fie'. 19, the frictional contact between rollers 62, and 66 will place the fabric under tension and then the pins G8 pass through the fabric and into the grooves `70, of the grooved roller G2, and the pin roller continues to turn until `the proper lateral stress has been laced on the fabric in the longitudinal direction of the machine. `When the fabric is to be released, the roller 62, is swung `out on the arms G3, and the roller 66 is revolved reversely to its pre-V vious movement, when the pins 68 will pass through the slots of the comb 7 G, and disengage from the fabric which will thus release the end .clamping device from the fabric, to permit of the reeling operation of the fabric rollers. The grooved roller 62, is free to revolve with the pin roller under frictional contact therewith. The shaft 71, of the pin roller extends upward, passing through a suitable journalin the tambour frame, and is provided with a gear 7S which miters with a 79, on the lowermost `longitudinal shaft 19, from which lattergthe shaft 71 receives its operating force.
The side tension mechanism, just described is duplicated at the opposite end of the machine, but it isarranged to operate ina re verse direction, so that the pin roller von the right will pullon Athe fabric in the `opposite direction to that on the left. Likewise the same vvill preferably be (luplicated for the fabrics of both pairs of rollers.
Se far the mechanisms for operating the fabric rollers, for ol'ierating the rolleribraclr ets, and for operating the side clamps have been traced back to the longitudinal operating` shafts; and I will now describe the mechanism by whichthe latte'` are operated and controlled. While the power for operating the several longitudinal shafts is preferably received `from a source independshaft `the Worin `gear 101, is mounted.
ent `of the tambour frame, I preferably mount the means for controlling the operations of the shafts on the tambour frame. I have provided means for predetermining the extent of the reeling operation of the `fabric rollers, which means can be set to cause the same to operate any desired amount, and when the means are so set the .movement may be initiated by the operator; and `the mechanism Will anton'iatically stop `when the `various operations have been completed.
Upon the end of, and to the middle of the upper part of `the tambour frame, .l have mounted supports `E550, 8l which have suitable b xarings for `the several longitudinali shafts and in addition I have provided a yolrc 82, for supporting various working parts at one end of the tambour frame.
On the right end of each of the longitudinal shafts I have provided miter gears 83, Se, and and arranged substantially vertical, and passing through the yoke S2, in which it journals, I provide a shaft 86 on Which are arranged means for transmitting power from an external source to the longitudinal shafts. On the shaft 86, `are arranged the three sleeves S7, 88, and 89, each of Wlrich carries a pair of miter gears90, 91 and either of which is adapted to mesh with one of .thomiter gears 83, S4; or 85 on .the `respective longitudinal ` shafts 19, 29 and Each ofthe ,sleeves is movable longitudinally onthe shaft 8G, and arms 92, are keyed on the shaft 86, and each has a key 93, -which engages in a `hole in the miter `gears 99, so that each sleeve will be revolved With the shaft zand still be movable `along the shaft.` The arrangement of the `several pairs of gears 90, 91 is such that if `the upper geariof either sleeve is `thrown into mesh Withthe gear of its.corresponding shaft, the latter ivillfbe causedto revolve in one direc` tion, while .if the lower gear is thrown into mesh the shaft will be revolved in .the reverse direction; and if `the gears and 91 are both out-of mesh as shown in Fig. 2, the longitudinal shaft will remain idle. The several sleeves 87, 8S and 89 arecontrollod by three levers 91, `95 and 96, fulcrumed at 97, 98 and 99, upon the yoke; andthe roclring of these levers Will control the operations of the longitudinal shafts through the meshing of the several gears of the sleeves. The power `for `operating these several levers 911, 95 and96 is preferably derived from the shaft 86, itself. The shaft 8G, is provided near its "lower end `with a Worm 100, which, through a vvorm gear 101, revolves the shaft 109, carried upon :the yoke, and upon this shaft 102, is therefore revolved vvheneve `the shaft 86, revolves.
Upon :the shaft 193, near the shaft 102, I
have ct'ulciuuned three `levers 104:, 105 and 410b, sidelby side; and these levers are con- The nected by the rods 107, 108 and 109 respectively, with the levers 94, 95 and 96, through which connections the latter are operated. I have provided three cams for operating the three levers 104, 105, and 106, which cams are mounted on the shaft 102. Cam 110 shown in Fig. 9, operates through the engagement of the bowl 111 uponone arm 113, of the lever 104, in the cam groove 112, and thereby transmits the force through lever 104, rod 107 and lever 94, to the sleeve 87, for throwing either of the latter gears 90 or 91 into mesh with the gear 83, on shaft 19 or for throwing both gears out of mesh. When the bowl is in either the part 112 or the part 115 of the groove of cam 110, the sleeve 87 will be in the position shown in Fig. 2, when both gears 90 and 91 will be out of mesh with gear 83, and the side clamping mechanism will be idle. When the bowl 111, is in the part 116, of the cam groove the levers 104 and 94 will be rocked tosuch a position that the gear 90 will be in mesh with gear 83, and as a consequence the shaft 19, will operate to turn the pin rollers so as to cause their pins to release the fabric. lVhen the bowl is in the part 117, of the cam groove, the levers 104 and 94, will be rocked to such a position as will throw the gear 91 into mesh with the gear 83. In consequence thereof the shaft 19 and therefore the pin rollers, will be revolved in a direction reverse to the first, and the pins of the pin roller will engage the fabric and draw it taut.
The cam 118, performs the operations similar to those just described with relation to the levers 106, and 96, and sleeve 89, but the lengths of the rises and falls of the cam race will be so proportioned as to properly time the movements of the levers so as to cause the results referred to hereinafter, in the description of the operation of the mechanisms.
The cam for operating the levers 105, and
i 95 which controls the movements of the fabric rollers, however, is somewhat different from cams 110 and 118 and is shown in Fig. 10. The bowl 119 of the lever 105 is affected by the cam 120, in the following manner. Assuming the cam 120 to be revolving right hand in Fig. 10, while the bowl. 119 is engaged by the concentric portion 121, of this cam, the levers 105 and 95, will be in the position shown in Fig. 2, and gears 90 and 91, will both be out of mesh with the gear 84, and the middle horizontal shaft 20, and therefore the fabric roller will be idle. Then the bowl 119, is engaged by the rise 122 of this cam, the lever 105, will be rocked to throw the levers 95, up and the gear 90, into mesh with gear 84 when the shaft 20 will operate the reeling shafts to cause the upper fabric roller of each pair to reel up fabric from the lower roller. When the bowl 119, is engaged by the outer wall123 of the cam, the levers 105 and 95, will be rocked back until the bowl is engaged by the portion 124, when the gear 90,will be thrown out of mesh with the gear 84, and the reeling operation will be thus f automatically stopped after a predetermined movement of the fabric rollers has taken place.` The cam plate 125, is made adjustable, so that the time of the return movement of levers 105 and 95, can be adjusted according to the amount of movement to be imparted to the fabric rollers. By turning the thumb screws 126 the plate 125 can be moved in the arc of a circle the screws 126, traveling in slots 127 in the cam. The position of the plate 125 can thus be adjusted to bring the lever 105 back at any required time, to stop the movement of the fabric rollers after a predetermined amount of fabric has been reeled.
It may be that the operator will not in very instance determine, properly, in advance the amount of movement tobe imparted to the fabric rollers, or that on ac' count of seams or imperfections in the cloth a greater or less amount is to be reeled up, and I have therefore provided means within the control of the operator for adjusting the movement to secure the desired results. The lever 95 which operates the sleeve 88, is somewhat different from the levers 94 and 96. In this instance the arm 95, fulcrums from the stud 98 and the other arm 129 thereof forms a handle to be gripped by the operator. The arm 128 to vwhich the rod 108 is directly fulcrumed, fulcrums on the stud 98. A clutch 130 is arranged to fulcrum on the pin 132, carried by the arm 129, and has a recess 131, which receives the pin 134, on the arm 128. The clutch130 is held in engagement with the pin 134 by a spring and when the clutchis thrown in, as shown in Fig. 2, the lever 95, is subject to the move mentsl of the bar 108 and therefore is controlled by the operating cam 120.
Should the fabric rollers reel up too much, or not enough fabric, when the cam 120 makes its revolution, and it is desired to adjust the action, the operator grips the arm 129 and by pressing the handle 133, disengages the clutch from the pin 134, when the lever 95, can be rocked by hand. lVhen thus disengaged, the lever 95, can be rocked and in consequence either the gear 90 or gear 91 can be thrown into mesh with the gear 84, and the fabric rollers thereby turned in either direction; and when the proper movement has taken place the lever 129-95 may be rocked to the intermediate position and both gears 90 and 91 will be outof mesh. Upon releasing the handle 133, the clutch will rengage the pin 134 and the mechanism will again be subject to the automatic control of the cam 120.
I provide means for transmitting power huecos to the shaft 86, which in no Way interferes with the free movement of the tambour frame. l
is shown in Fig. 7, I preferably take my operating poiver from a counter shaft mounted upon the ceiling or in any `other suitable location; tl'iough any other source of power, may be utilized. Upon this shaft 135, l have provided a loose pulley 136 and a fist pulley 137 over which a belt (not shown) operates to revolve the counter shaft 135. By shippingthe belt from one of these pulleys to the other the shaft 135, can be started or stopped, in ivell known manner. l have provided a belt shipper 138 for this purpose which is provided with a weight 130, and with a brake shoe 14:0, for engaging the fast pulley, to stop the shaft. A rod 141, is employed. to operate the belt shipper and it extends down Within reach of the operator. rlhe shaft 135, is provided. with a gear 142, which miters with the gear 11113, on a short shaft 1-1-1 directed dovf'nivard. The latte shaft is connected by a universal joint with a downward extending telescoping shaft, consisting of the part 1116, -which extends into the sockets 148, of the part 147 and has a groove 149 in which a pin 150 on the part 118 engages. The tivo parts of this shaft are adapted to telescope to allow for the movement of the tambour frame relative to the source of poweru The end et the telescoping shaft is connected by a universal joint 151, With the shaft 8G, and by this connection `the operating force is transmitted to the various mechanisms on the tambour frame.
Upon the stud 152, on the yoke 82, l have fulcrumcd a trigger 15111, the upper end of which engages, and is engaged by, a stop 150 carried by the starting and stopping rod 1-il1. The end of this triggeris engaged by a pin 157 on the side of the Worm gear 101,` so that lupon each revolution of the shaft 1.02, and its cams, the trigger 154i, will be tripped to release the controlling rod 1411, as will appear hereinafter; or it may be released. by hand at any time the operator de sires.
The operation of the device is as followslt is to be understood that the various branches of the mechanism could be op erated by hand power.
Assuming the mechanisms to be in the condition shown in Fi 1, which is the condition that exists while the embroidery is being Worked upon the fabrics; at -which time the fabrics are held taut between the fabric rollers and are held tant by the side clamps. The shaft 86, and consequently all the parts operated thereby are idle. lf the fabric stretched between the fabric rollers has been embroidered on and it is desired to reel up enough fabric to present a new which will stop the fabric rollers when the desired. amount oil.f fabric has been. reeled;
the attemflant will then pull doivn on. the starting rod lll, to set the mechanism into operation. Vlhcn the rod is drawn down the belt shipper Wil shift the belt to the fast pulley 137, on the counter shaft, when the latter will be set in motion. ifhrough the gears lll-2, and 1:13, the telescopios' shaft will be revolved and the telescoping shat't transmits the (mei-ating force to the sh f 8h. The revolution. of shaft titl, causes the sleeves 87, 88, bevel gears to revolve therewith; and through the Worm 100, and worm gear 101, the shaft 10:2, which carries the cams 110, 118 and 120 is caused to revolve. ideen after the shaft 102, is side of the vvorm gear 101 engagement With. the tri,v4 ,r 151i-, and the latter rocks, until its upper end 155, engages over the stop 156, on the starting rod 111, so that when the operator lets go of the latter, .it will be held down by the triggm: until the shaft 100, completes its revolution, when the pin 1i `will t -p the trigger and thereby release the star ng rod, in conse-- quence of which the `Weight on the belt shipper will roel.; the latter and cause the shipping of the belt and the stopping of the machinen lt is daring the revolution of the shaft 102, that the various oplirations are gerformed. lll/'hen the shaft 102, is mailing its revolution the .following takes place. rlhe movement ol cam 110, will cause its cam groove to act through the lever 101, and rod 10i' to roclr the lever 0-1. flhis will. reciprocate the sleeve Si., causing either the gear 00 or the dem.' 0l. of this sleeve to mesh with the gear 8f3 of the lovver longitudinal shatt. 'Vllhether the gear 00 or 01, is thns thrown in Will` depend upon the direction el. revolution of the shaft 00; sumed that the gear 00, is thrown. in. 'lhis will cause shaft 10, to be revolved and in consequence of the gears 70, on this shaft and the gears 7S, on sha'ltts i1, the latter will be revolved and the pin rollersl G0, will be turned back. The pin,` 0?, will.. be Withdraivn from the fabric as the pin roller is turned bach and the comb 70 will tend to strip the 'liabric from the pins the pin .roller revolifes. of the pin roller and the cam 7&2, carried thereon acts through the arm i'l, to roch the shaft Gil, which carries 'the groovod .roller 02; and causes the latter to be moved away from the fabric, so as to leave the lnbric free so far as the side clamps are concerned. The cam 110 now shifts the sleeve di' to the intermediate position sind diseoi'itinues the rotation of the lfmgitudinal shalt. This ope ation `taires place simultaneouslyat op and S9 with the attached f1.1
started, the pin 1:3? on the i moves l'rom its p but let it he ae- The movement ot the shaft posite ends of the machine, the pin rollers on the opposite ends of the machine revolving reverse to each other. The lateral stress being removed from the fabric the vertical stress is next released. The cam 118 will now act on the roller of lever 106 rocking the latter and the latter, through the rod 109, rocks the lever 96, and moves the sleeve 89, sufficiently to cause the gear 90, of this sleeve to mesh with the gear 85, of the uppermost longitudinal shaft, when the latter will be set in motion. The gears 54, on the longitudinal shaft 21, acting on the gears 52, on the shafts 47 will cause the latter t0 revolve.
The threads al@ of the shaft 47 will 0perate on the block a5, to move the rod 4:2, downwardly and as the arms la, are carried on this rod they will be lowered and the worms 38, will move down therewith, when the lower rollers 25, will turn, under the tension of the fabric, sufficiently to relieve the fabric of the vertical stress. The same longitudinal shaft 21, operates through gears 60a and 52, to turn the shaft 117, near the middle of the machine and the threads 4G, thereof will act through the block i15 to lower the bar 59, on which the brackets 60 are carried. This releases the brackets 60 from the upper roller of each pair, so that the latter may be revolved. The cam 118, now shifts the sleeve 89 to the intermediate position and this part of the mechanism stops. T he release of the tension upon a f the fabric caused by the movement of the rod a2, will permit the lower rollers to sag sufficiently to release them froml contact with the brackets 5G. The tension is now taken off the fabricand the brackets are free, so that the fabric is free-to be reeled up. The cam 120 will act upon the lever 105, and through the rod 108, the lever 95, will be rocked to reciprocate the sleeve 88, and throw the gear 90 of this sleeve into mesh with the gear 8l, of the intermediate longitudinal shaft, when the latter will be set in motion. rhe gears 31, of this shaft 20, acting on the gears 80, will revolve the shafts The worms 32, and 38, revolve with the shafts 29 and they act respectively on the worm gears 38, and 39 to revolve the fabric rollers and reel the fabric from the lower to the upper rollers. The rollers 24, will be revolved faster than the rollers 25, because of the difference in the pitch of the worms 32, and 538, and if the circamference of the fabric on the upper roller is less than on the lower rollers there will be no slack cast in the fabric between the rollers. On the other hand, if the upper rollers draw too fast from the lower rollers a point will be reached where the stress of.the fabric will overcome the effect of the friction caused by the springs 36 pressing the worms against the collars 3.7; and the shaft 29 will slip inside the worms 32; and the shaft 29 and the upper rollers will lose motion until the lower rollers let off enough fabric to reduce the tension on the fabric; when the upper rollers may again turn. The fabric rollers will stop when the desired amount of fabric has been reeled. lVhen the 'plate 125, of
the cam 120 comes into contact with the bowl of lever 105, the latter will be rocked back to its former position, the time of which movement will depend upon the posi*- tion of the plate 125. 105, will operate through rod 108 to rock the lever 95 back to its former position, when the sleeve 88, will be moved until its gears are no longer in mesh with the gear 8a, of the horizontal shaft. The reeling movement of the fabric rollers has now ceased. lf the operator observes the fabric at this time and finds that the fabric has been reeled too much or not enough, he or she, takes hold of the handle 129 and releases the clutch from engagement with the pin 131. The lever, 95 can now be rocked by hand and if the handle 129 is moved down, the sleeve 88, will be moved to throw its gear 91, into mesh with the gear 84, and the fabric will be reeled` back until the handle 129 is returned to its intermediate position, when the reeling action will cease. Or if the handle 129 is raised, the gear 90 will be thrown into mesh with gear 84, and the fabric will be reeled upwardly an additional amount. It is obvious that the reeling 0f the fabric is within the control of the operator and that the automatic device can be supplemented by the hand control.` It will also be apparent that the mechanism may be operated through the hand ycontrol alone if desired. The fabric having been reeled, a reversal of some of the movements will take place. Thecam 118, now rocks the lever 106 in a direction reverse to its previous movement, actuating the rod 109, and lever 96, sufliciently to throw sleeve 89 which has been in the intermediate position, so as to bring the gear 91 into mesh with the gear 85, of the shaft 21. The latter will now revolve in a direction reverse to its first movement, and a reversal of the shafts L17 will cause the rods 4t2, to be drawn upwardly. rThis will return the worms 38 to their former positions and during their movement they will revolve the lower rollers 25 and 28, suflicient to place the final vertical stress upon the fabric, which will be retained until the next reeling operation takes place. The reversal of shaft 21, also reversed the movement of the shaft 17, of the bracket device; and as a result the rod 59, will be drawn upwardly, until the brackets 60, engage under the upper rollers and press against them suliiciently to prevent the fabric, or the weight of the rollers from causing the latter to sag in the middle.
The rocking of lever CIK individually, for instance when nevv ma- The pressure exerted by the brackets 60, Will be determined by the spring 51a. When suliicient pressure 'of the b 'aclets `has been attained, the friction of the collar b against the gear b2, will be overcome, and if the shaft 47a, continues to revolve the collar `50" will slip against the gear 52a, and the upward movement of the barI 50 Will cease. I have shown these two movements as occurring simultaneous but this is not imperative. rIlhe cam 118 will new rocltithe levers 100, and 96 back to their intermediate or starting positiomivhen the shaft 21, will remain idle.` The cam 110 will now rock the lever 1011i, rod 107, and lever 0l, from their normal or intermediate position in the reverse direction to their first movement, moving the sleevev87 untilthe gear 90 is thrown into mesh with the gear 83, When shaft 19 will be reversed in its movement. This Will reverse the direction of rotation of the shafts 71, and consequently the pin rollers 6b' will be revolved in a direction re'- verse to their previous movement. rl`he cams 72, Will rock the shafts 011, bringing the grooved rollers 62, toward the pin rollers" 6G, and pressing the fabric between them. As the rollers 00 revolve the pins 68 will pass into the fabric and will `travel through the grooves of the rollers 02. The pin rollers will be revolved sui'liciently to place the fabric under tension longitudinally of the machine, but provision is made for prevent ing too great a strain on the fabric. The roller 66 is loose on the shaft 71 being held between the collar 71b and a coiledspring 7111. If the strain on the fabric becomes too great, the pressure caused by the coiled spring 7lu against the roller 06 Will be over come, and the shaft 7l will turn in the pin roller Which will not respond to the move` ment of shaft 71 beyond the desired limit. When the side clamps have been properly turned the cam rocks the lever 10%1 rod 107 and lever 94: back to their intermediate positions, and the shaft 19 ceases to revolve. The shaft 102, has now madeone complete revolution and as the pin 157 again comes into contact with the lower end of the trigger the latter will be rocked to release the rod lll and the belt shipper will operate to stop the mechanisms.
The above operations may be repeated as often as required.
In some cases it maybe desirable to disconnect the upper fabric rollers from the dri.\"ng gear, so as to be `able to turn them terial has to be attached to the same; `or again for the purpose of bringing the tivo rollers of` a set into proper relation. In lfig. 15 I have shown means for accomplishing this. l; have shown a block 127l in the bracket 128EL on the tambour frame l and Which When in the position shoivn` in nig. 15 is had by a cette pin l129i, so that the worm 32 and gear 33 are in mesh; the roller 2l.l being journaled in the block 127% W'hen tliepin 129a is Withdrawmthe block 127"i `and with it the roller 241 may be moved aivay from `the worm, to disengage the gear 253 from the Worm 32,`vvhen the roller may be re\\"olved individually. The arrange ment is the same at each end of the roller 24.
ln somecasos itanayibe desirable to openate` the rollersifor a longer period, for
instance when putting new material on the rollers. For this purpose I disconnect the shaft 102 from the shaft 80 and in Fig. 1d!- I show means for doing this. A collar 130% is secured by a pin 131ll to the shaft S0 alongside the vvorm 100. On this collar is an extension 132,El which has a vertical aperture. 100 has a lilre aperture. A pin lla is placed through the apertures in the extensions 132 and 157e, `so Vthat `the `Worm must revolve with theshaft `e0. When it is desired to disconnect the parts, `the pin 133 is re- My invention maires it possible to perform all the operations incidental to the reeling of the fabric, by mechanical means,
and in such relative order that there will be no conflict in the actions. In fact the operations are performed in the samcorder as they were formerly performed by manual labor. Furthermore, I have so constructed my improvements that all danger of injuring or destroying the fabric are `eliminated and the results aremore uniform andsatisfactory than heretofore.
By employing all the features of my invention it possible to operate the mecha nism autonuitically. y e
`.I believe my present invention to be a pioneer one,` and while I have carefully described' in detail. the various parts of the An extension 137 on the wornr llLO mechanism, embodying my invention in the preferred pform, 'I do not wish it to be inferred 'that the invention 1s hunted to the construction herein shown and described, as n ina-nv changes may be made Without departing from the spirit of my inveutionor the scope of the claims herein. lhirthermore, the various branches of my invention may be gated and beV separately used for the `individual Aadiaintagsas to be obtained Having described my invention, what I claimA is l. In an embroidering machine embodying fabric rollers arrangedto receive the fabric one from the-other, means for eni gaging the sides of the fabric and adapted to place the same under tension after it has been shifted, means including the rollers for shifting the fabric and tensioning the same after it has been shifted, and means for causing said operations to be performed in sequence.
2. In an embroidering machine embodying fabric rollers arranged to receive the fabric one from the other, means for engaging the sides of the fabric and adapted to place the same under tension, movable means for supporting the fabric` rollers intermediate their ends, and means for reeling the fabric rollers, operating said side tension devices and moving said supporting devices in sequence.
3. In an embroidering machine embodying fabric rollers arranged to receive the fabric one from the other, clamps for ther sides of the fabric, adapted to place the fabric under tension after shifting, and means for releasing said side clamps, revolving said rollers and operating said side clamps to place the fabric under tension, and adapted to automatically perform said operations in sequence.
4. In an embroidering machine a pair of fabric rollers, tension devices for engaging the sides of the fabric to place the same under tension, means for placing the fabric under tension between the fabric rollers, and mechanism adaptedto release the side tension devices, release the device for creating` a tension between the rollers, to reel a predetermined amount of fabric from one roller to the other, restore the stress on the fabric between the rollers and operate said side tension devices to place a stress on the fabric, all in the order here named.
5. In an embroidering machine embody-` ing fabric rollers arranged to receive the fabric one from the other, clamps for the sides of the fabric, adapted to place the fabric under tension, movable brackets for supporting the fabric rollers intermediate their ends, and means for operating said devices in the following order, first to release said side clamps, and release the supporting brackets then to revolve the fabric rollers for the purpose of reeling the fabric, then to operate the side clamps and brackets, where- .by the clamps will place the fabric under the reeling operation, means for supportingv the rollers intermediate their ends and means for withdrawing said` intermediate support before the reeling operation and restoring it thereafter to causel the support of said rollers intermediate their ends. A,
7. In an embroidering machine embodying fabricrollers arranged to receive the fabric one from the, other, worm gears and worms for the fabric rollers, clamps for the sides of the fabric, adapted to place the fabric under tension, movable brackets for supporting the fabric rollers intermediate their ends, and means for operating said devices, comprising means for releasing the side clamping devices and for throwing them in to draw the fabric taut, means for revolving said worms to reel the fabric, means for reciprocating a worm to place the fabric under tension ybetween the rollers, and means for operating the supporting brackets to cause them to support the fabric rollers or to be released therefrom.
8. In an embroidering machine `embodying fabric rollers arranged to receive the fabric one from the other, worm gears, and Worms, foi` the fabric rollers, clamps for the sides of the fabric, adapted to place the fabric under tension, movable bracketsfor supporting the fabric rollers intermediate their ends, and means for operating said devices, in the following order, to wit, releasing the side clamps, reciprocating a worm gear to release the tension of the fabric between the rollers, moving the supporting brackets from the rollers, revolving the fabric rollers to reel the fabric, reciprocating a worm to place the yfabric underv tension between the rollers, and operating the `side clamps to place the fabric between them under tension.
9. In an embroidering machine embodying fabric rollers arranged to receive the fabric one from theother, side clamps for placing a tension on the fabric and adapted to be thrown into and out of engagement with the fabric, means for operating said side clamps and means for automatically reversing the said operating means, and means for revolving the fabric rollers and adapted to be automatically operated when the side clamps are released.
10. In an embroidering machine embodying fabric rollers, a shaft `for revolving said rollers, side clamps for thefabric, a shaft adapted to operate theside clamps to `place a tension upon the fabric or release it therefrom, means foroperating said latter shaft,
means for automatically causing the reversa-l of the operation of the clamping devices, means for operating said first shaft and means for automaticallycausing said operation while the side clamps are released.
y ll. In an embroidering machine embodying fabric rollers, a shaft for revolving said rollers, side clamps for the fabric, a shaft adapted to operate the side clampsto place a tension upon the fabric or release it therefrom, means for operating said latter shaft, means for automatically causing' the reversal of the ope'aton of the clamping devices, means for operating said first shaft, means for automatically determining the extent of operation thereof, and means for automatically causing the operation of the fabric rollers, While the side` clamps are thrown out. i y
12..;In ancmbroidering machine embodying fabric rollers, means for operating said rollers embodying a Worm gear, a Worm meshing therewith and a shaft, revoluble side clamps for placing a tension upon the fabric, means for operating the same,` ein`y bodying a` shaft, means for controlling the operations of said shaft, embodying vcams adapted to effect the throwing into and out of operation of said first shaft and the reversal of said second shaft.
13. In an embroidering machine embodying fabric rollers, Worm gears, worms, a shaft arranged longitudinally of themachine for operating said Worms, revoluble side` clamps for placing the fabric under tension, a shaft arranged longitudinally of the machinefor operating the same, means for operating said shafts, reversing devices for said shafts, cams operated automatically With the operation of said shafts, and adapted to cause the reversal of said clamp operating shaft. and the starting and stopping of the roller operating shaft.
i 14. In an embroidering machine embed; ing fabricrollers and means for operating the same, embodying worm gears and Worms, a shaft arranged longitudinally of the machine for revolving said Worms, movable siuoporting brackets` for the rollers, revoluble side clamps for placing the fabric under tension, shafts arranged longitudinally of the machine for operating said brackets and side clamps, means for reciprocating a Worm of the fabric roller operating device, to cause a tension on the fabric between the fabric rollers, a shaft for operating the same, means for operating said shafts, reversing devices for reversing the direction of rotation of said shafts, cams and means whereby said cams Will cause the said secondand third shafts to be reversed in their operation and cause the starting of the roller `operating shaft While the side clamps are thrown out and the supporting brackets are released.` y
. 15. An embroidering `machine embodying a tambour frame having reeling mechanism for the fabric, comprising a `pair of fabric rollers-,wlneans for rotating said rollers simultaneously,and the receiving roller faster than the other, and yielding means adapted to automatically maintain the desiredstress on the fabric during thei'eeling thereof. `16. An -embroidering machine embodying a tambour frame having Ireeling mechanism for fthe fabric, comprising apair of fabric rollers, means for rotating said rollers si'- multaneously and the receiving roller faster than the other, yielding means adapted to maintain the desired stress on the fabric during the reeling thereof, and means for relieving the tension before, andvrestoring it after, the reeling operation.
17. `An `embroidering machine embodying a tambour frame having a fabriereeling device embodying a pair of fabric rollers, gearing on each roller, means for operating the gears of 4each roller simultaneously, and adapted to revolve the receiving roller faster than the other roller, and yielding means for automatically regulating the stress on the fabric While it is being reeled from one rollerto the other. i
18. In an embroidering machine embodyinga` tambour frame, having fabric rollers, and means for operating on each end of the rollers to revolve them, comprising a cornmon shaft disposed longitudinally of the tambour frame and means forapplying the operating force of said shaft to the opposite ends of the rollers and adapted to revolve the rollers `at a lesser speed than said shaft.
19; In an embroidering machine of the type set forth, a tambour frame havinfffab- .ricrollers` arranged to receivethe fabric one from the other, means for revolving said rollers, comprising wormgears on the opposite ends of the rollers, an upright shaft at each end of the machine provided with worms adapted to operate the worm gears of the rollers, and a shaft arranged longi tudinaliy of the machine for simultane ously operating both of said first shafts.
20. In `an embroidering machine a tambour frame having fabric rollers arranged whereby the fabric may be Wound from one roller upon the other, and means for operating the rollers, embodying Worm gears by which the revolving force maybe applied simultaneously to the opposite ends of each roller, Worms for operating saidworm gears,
the gears and Worms for one roller being arranged to rotate the receiving roller faster than the other roller and means for resistablypermitting a roller to slip relative to its operating means.
`2l. In an embroidering machineza tambour frame, havingfabric rollers arranged to receive the fabric one from the other, `and ioo to support the fabric in an operative position, and means for revolving said rollers, comprising means for simultaneously revolving said rollers at different speeds and means whereby one of said rollersmay be allowed to slip independently of the revolution produced by the operating means.
22. In an embroidering machine a tambour frame having fabric rollers arranged to receive the fabric one from the other, and means for revolving said rollers7 comprising worm gears for each roller, a shaft and worms thereon, adapted to. operate said Worm gears, the worms and gears of one roller being of different pitch from those of the other, whereby said rollers will be simultaneously revolved at different speeds, the worm of one roller being adapted to slip relative to its operating means and a spring arranged to resist said slipping action.
23. In an embroidering machine a tambour frame having fabric rollers arranged to receive the fabric one from the other, means for revolving said rollers, comprising worm gears, for each roller, a shaft, and worms thereon adapted to operate said worm gears, the worms and gears of one roller being of different pitch from those of the other, whereby said rollers will be simultaneously revolved at different speeds, the worm of the faster roller being adapted to slip relative to its operating means and means for resisting said slipping action..
24C. In an embroidering machine a tambour frame, embodying fabric rollers arranged to receive the fabric, one from the other, means for revolving said rollers to reel the fabric from' one to the other, and other means for revolving one of said rollers to place a tension upon, or remove it from, said fabric.
25. In an embroidering machine a tambour frameembodying fabric rollers arranged to receive the fabric one from the other, means for revolving said rollers to reel the fabric from one to the other, and other means for independently revolving a roller to place a tension upon, or remove it from said fabric.
26. In an embroidering machine a tambour frame embodying fabric rollers arranged to receive the fabric, one from the other, means for revolving said rollers to reel the fabric from one upon the other, embodying worm gears for revolvingthe rollers, worms for operating the worm gears, means for operating the worms and means for reciprocating a worm to place a tension upon the fabric.
27. In an embroidering machine a tambour frame embodying fabric rollers arranged to receive the fabric, one from the other, means for revo-lving said rollers, to reel the fabric from one and upon the other, embodying worm gears lfor revolving the rollers, worms for operating the worm gears, means for revolving the worm gears to revolve the rollers synchronously;v and means for reciprocating a worm, independently of its revolving operation, to place a tension upon the fabric.
28. In an embroidering machine, a pair of fabric rollers, tension devices for engaging the sides of the fabric to place the same `under tension, said fabric rollers and 'side tension devices operated from a source of power, means for automatically causing the shifting of the fabric and the operation of the side tension devices in sequence and the shift-- ing of a predetermined amountof fabric, and manually operated means for modifying the amount of fabric shifted;
29. In an embroidering machine a movable tambour frame, fabric rollers f thereon arranged to support the fabric in position for embroidering and to receive the fabric one from the other, means for individually operating said rollers to shift the fabric from one to the other and adapted to be operated from a source of power, and adjustable means for automatically arresting the operation of the rollers, whereby they may be set to shift a predetermined amount of fabric.
30. In an embroidering machine a tambour frame embodying fabric rollers arranged to support the fabric, and Vto receive the fabric one from the other, and means for operating therollers to reel the fabric, and adapted to be operated from a source ofp'ower, and adjustable means adapt-ed to automatically arrest the operation of the rollers, whereby theyy may be set to reel'a predetermined amount of fabric, and manually operated means for throwingsaidrollers out of operation independently of said automatic means.
31. In an embroidering machinea tambour frame, fabricrollers for supporting the fabric, and adaptedto receive the fabric one from the other, and means for operating said rollers, comprising worm gears by which the fabric rollers are each revolved, Worms adapted to operate saidfworm gears, means for operating said worms synchronously and means whereby a roller may be shifted away from the worm to disengage its worm gear from its operating worm. y
32. In an embroidering machine embodying a movable tambour frame, rollers carried thereon, and arranged to receive the fabric one from the other, means carried on said tambour frame for revolving said rollers, a stationary support, a power driven shaft thereon and a flexible power transmitting means for transmitting power to said roller operating means, while the tambour frame is in its various positions and without interfering with the movements of the tambour frame.
33. In an embroidering machine embodying a tambour frame and means for supporting the fabric on the tambour frame,
means for holding the side edges of the ing yfabric taut, embodying a revoluble mem` j ber for each side edge of the fabric, having means for piercing the fabric, and means for revolving the said member and for cans-- ing theinto engage and disengage thefabric. i In an embroidering machineembodytambour frame and means for supporting the fabric on the tambour frame, and side clamps forholding the side edges of' the fabric taut, embodying revoluble members at each side of the fabric, adapted to eiigage the fabric between them, and `means for revolving the revoluble members atene side of thefabric reversely and simultaneously to those at the other, for the purpose set forth. i
35. ln an embroidering machine embodv ing means for supporting a fabric, a tension device for the fabric embodying a roller having a roiv of fabric piercing elements adapted to engage the fabric when the roller :is rotated in one direction and means for stripping thefabric from said fabric piercing elements when the `roller is revolved inthe opposite direction, and means for rei'fclving said roller. l
36. ln an embroideiing inacliineembodying a tambour frame and means for supporting the fabric on the tambour frame, andside clamps for holding the side edges `of l the fabric taut, embodying revoluble rollers near each side edge of the `fabric adapted to engage on opposite surfaces of the fabric, one of said rollers having pins for iercin@r the fabricand the other havini ,yl n b a n i C grooves into which said pins may enter, Wherebv said pins Will be caused to pierce the fabric, and means for revolving said rollers.
87. Inanenibroideringmachine embodying a tambour frame and ineansfor supjliorting the fabric on the tambour frame,
and side clamps for holding the side edges of the fabric taut, embodying revoluble rollers near each side edge of" the fabric adapted to engage on opposite surfaces of the fabric, one of said rollers having` pins projecting atan angle to its radius and the other having `grooves into which said pins mayr enter, whereby said pins will be caused j o to pierce the fabric, means for stripping the fabric from said pins, and means for revolving the rollers.` j
38. In an embroidering machine embodying means for supportinga fabric, a tension device for the fabric embodying a roller `when one of the rollers is revolved the fab`- `ivi ll pierce the ric `ivi-ll be :drawn taut byi friction,` and when further rotated the said projections sion. i j i 39. In an embroidering machine embodying a` tambour frame aiiflineans for sup- `porting the fabric on the tambour frame,
and side clamps for holdingthe side `edges of the fabric taut, embodying revoluble rollers near each `side edge ofthe fabric, adapted to engage on opposite snrfacesof the fabric, one of said rollers having pins projecting atan angle to the radiusthereof and the other having grooves into which said pins may enter, `vvheiaiby said pins Will be caused to pierce the fabric, ai comb arranged to strip the fabric from said pins when the pin rollers are revolved in one direction, aiid means for revolving said pin rollers in directions reverse `to each other, and to reverse the direction of revolutionof said rollers. l
410; Inian embroidering machine a tambour frame and fabric rollers for supporting the fabric on the tambour frame, and side` clamps for holding the sideeda'es of the fabric taut, embodying revoluble rollers neareach side edge of the fabric, and arrangedlon theneedle side of the fabi-ic, said fabric to .hold it under tenrollers having pins for piercing the fabric,
rollers on the shuttle side of the fabric baving grooves to receivey the pins of the said pin rollers andarranged between thefabric rollers, means for revolving said pin rollers and means for movingisaid grooved rollers toward and from the fabric.
4l. In an embroidering maeljiine embodyl ing a tambour frame, andmeans for supporting the fabric on the "tambour frame,
andside clamps for holding the sideedges f of the fabric taut, embodying revoluble rollers having pins adapted to pierce near the side edgesof the fabric, means for causingbsaidpins to pierce the fabric and means for `rmfolving said rollers, and resistible means interposed whereby the tension` of `the fabric may overcome the revolving action upon the rollers. i
In an embroidering machine embodying a tambour frame and means for supporting the fabric on the tambour frame, and slide clamps for holding the` side edges of the fabric taut, embodying i'evoluble rollers having pins adapted to pierce near the side edge of the fabric, meansfor cans ing` said pins to pierce the `fabric and means for revolving said rollers, and adjustable,
resistible meansinterposed whereby the tension `of the fabric between the said pin rollers may` overcome the revolving action iipontlie said rollers.
43. In. an embroideringmachine embody "ing a tanibourfranie and means for supportf ing the fabric on the tambour frame, and
side clamps for holdingr the fabric taut, embodying shafts, rollers thereon, operated by said shafts, springs arranged to permit, but resist, the movements of the rollers relative to their shafts, said rollers having pins arranged at an angle to the radius thereof, and adapted to pierce the fabric` grooved rollers arranged on the opposite face of the fabric from said pin rollers and adapted to receive the pins thereof, shafts on which the grooved rollers are arranged to be carried whereby the said rollers may be moved toward and from said pin rollers, a cam on said first` shaft adapted to oscillate said second shaft, and means for operating said first shafts.
44. In an embroidering machine embodying a tambour frame, fabric supports for supporting the fabric on the tambour frame, and means for engaging the fabric supports between their ends, comprising engaging members, means for operating them, and resistible means whereby the resistance of the fabric supports on said engaging means may automatically overcome the operating action on said engaging members.
45. In an embroidering machine having a movable tambour frame,.a plurality of fabric rollers carried thereby, a plurality ofengaging members for engaging the fabric rollers between their ends to hold them true, and common means for operating a plurality of said engaging means `from a common source.
46. In an embroidering machine embodying a tambour frame, fabric rollers for supporting the fabric on the tambour frame, and means for supporting the said rollers between their ends, comprising supporting brackets, means for raising said brackets,
comprising a threaded shaft adapted to` raise and lower said brackets, means for revolving said shaft and a spring adapted to resistibly cause said shaft to be operated by its operating means.
47. An embroidering machine having fabric supporting members, a plurality of movable brackets for supporting the fabric sup porting members intermediate their ends, and operating means therefor, embodying an upright shaft for operating the brackets, and a shaft disposed longitudinally of the machine for operating the said upright shaft.
48. An embroidering machine having fabric supporting members, a plurality of movable brackets for supporting the fabric supporting members intermediate their ends, and common means for operating a plurality of brackets. v
49. An embroidering machine having fabric supporting members, a plurality of movable brackets for supporting the fabric supporting members intermediate their ends, and common means adapted to be operated from a source of power and to operate a pluralityof said brackets.
50. In an embroidering machine, fabric supporting and shifting means, side tension devices, comprising means near each side of the fabric consisting of coperating means which press the fabric between them, and means yfor operating the side tension devices at bot-h sides of the fabric and adapted to cause the side tension devices to engagek and disengage the fabric and to place the fabric between them under tension while said fabric shiftingv means is inoperative.
51. In an embroidering machine `a tamfriction, and means for securing ,the fabric under tension. V
53. In an embroidering machine a tambour frame, fabric holding means, and side tensioning means embodying means for engaging portions of the fabric while under unequal tension, drawing the fabric by slippable friction to equalize the tension of the fabric, and means for securing the fabric under tension. i
54. In an embroidering machine atambour frame, fabric holding means, and side tensioning means, embodying means for engaging portions of the fabric while under unequal tension and drawing `the fabric `by slippable friction to equalize the tension of thel fabric, and means for positively tensioningy and securing the` fabric when equally tensioned.
55. y In an embroidering machine embody? ing fabric shifting means, means for ,engaging the sides` of the fabric and adapted to place the same under tension after it is shifted and means for operating thefabric transfer-ring means and operating the side tension devices in sequence. i y
56. In an embroidering machine, fabric supports, engaging members for engaging the fabric supports intermediate their ends to hold the support true, common means for operating the engagingmembers and means for automatically vterminating the ymovement of the engaging members.
57. In an embroidering machine, fabrice supports, an engaging member for engaging a fabric support, means for operating said engaging member, and means for terminating the movement of the said engaging member, and adapted to be controlled by` the resistance to the operation of the engaging member.
58. In an embroidering machine, a mov able tambour frame, fabric supporting members carried thereon and arranged to support the fabric in position for embroidering andadapted to receive the fabric one from the other, means for operating both the receiving and delivering members individually to shift the fabric, and means for determining the extent of the shifting of the fabric.
59. In an embroidering machine, fabric supporting and shifting means, side tension devices comprising means near each side of the fabric, each consisting of Coperating members which press the fabric between them, and common means for simultaneousfi7 operating the side tension devices at both sides of the fabric and adapted to canse said side tension devices to engage and disengage the fabric and to place the fabric between them under tension While the fabric shifting means is inoperative. e
60. In an embroidering machine having a fabric frame, means for shifting the fabric, means for securing the fabric in a direction at right angles to the shifting movement, said securing means having elements for piercing the fabric, and meansfor causing the said piercing elements to engage and disengage the fabric.
61. In an embroi dering machine having a tambour frame, means for supporting the fabric for the embroidering operation, and side tension devices adapted to engage the fabric between them, and to cause a drawing action on the fabric to smooth and ten sion thesame and means for piercing the fabric to hold it in its tensioiied condition.
62. In an embroidering machine, means for supporting a fabric for the embroidering operation, side tension devices for engaging the sides ofthe fabric and adapted to exert a stretching action on the fabric, means for operating said side tension devices and means wherebv the said side tension de vices may independently affect the action of the operating means thereon.
Signedat the city, county, and State of New `York this th day of June, 1911.
JOSEPH A. GROEBLI.
Witnesses:
`W. WV. KiNsirAiD,
I-Iniwiiru EGLI.
Copies:` of this patent :nay be` obtained for tive cents each, by addressing the Commissioner of Patents,
. i i i Washington, D. G.
US63800811A 1911-07-11 1911-07-11 Cloth-reeling device for embroidering-machines. Expired - Lifetime US1116693A (en)

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