US379477A - M a c h i n e - Google Patents

Description

(No Model.) 6 Sheets-Sheet 1. W. KOGH.

QUILTING MACHINE.

Patented Mar. 13, 1888.

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Patented Mar. 13, 1888.

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QUILTING MACHINE.

No. 379,477; Patented M81. 13, 1888.

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- QUILTING MACHINE. No. 379,477. Patented Mar. 13, 1888.

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QUILTING MACHINE. No. 379,477, Patented Mar. 13,1888.

(No Model.) 6 Sheets-Sheet 6,

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QUILTING MACHINE.

Patented Mar. 13, 1888.

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turn STATES WILLIAM KOCH, OF NEWV YORK, N. Y.

QUILTING-MACHINE $PECIPICATION forming part of Letters Patent No. 379,477, dated March 1 3, 1888.

Application filed May :27, 1886. Serial No. 203.381.

To ztZZ whom, it may concern.-

Be it known that I, \VILLIAM KooH, of New York city, in the county and State ofNew York, have invented a new and useful Improvement 5 in QuiltingMachines; and I do hereby declare that the following is a full and eXact descrip-v tion thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification, in which- Figure l is a partial elevation of one side of the machine; Fig. 2, an elevation of that portion of its rear end next to the side shown in Fig. 1. Fig. 3 is an elevation of the two ends {5 ofthe side opposite to that shown in Fig. 1,

the intervening central portion of the machine being broken away. Fig. at is a plan view of the corner of the machine, which embraces the two portions illustrated in Figs. 1 and 2.

Fig. 5 is a detail view of the tripping device by which the reversing shaft and screw actuating the carriages in the machine are governed. Figs. 6 and 7 are sections respectively in the line r 00 of Fig. 1, looking in the direction indicated by the arrow, and illustrating two different positions of the disk controlling one of the actuating-pawls for the reversingshaft. Fig. 8 is a transverse sectional detail of the guide cord or band for the edge of the fabric in line 3/ y of Fig. 3. Fig. 9 is a plan view, and Fig. l0 a side elevation, of a modification in the arrangement of the tripping device for reversing the shaft actuating the carriages. Fig. 11 is a view in perspective of the entire machine from the side shown in Fig. 1.

Similar letters indicate like parts in all of the figures.

My invention relates to that class of quilting-machines in which one straight row of needies is employed and the entire width of the fabric is carried diagonally from side to side' under the needles by means of a simultaneous forward and lateral movement imparted thereto.

The object of my invention is to facilitate an automatic reversal of the lateral movement of the carriage carrying the fabric and to provide for the support and retention in proper form of the edge of the fabric as it moves t'or ward over from one carriage to the other, and

(No model.)

this I have accomplished by the combination with the ordinary mechanism of the quiltingmachine of. certain novel mechanical devices, which are hereinafter fully described.

In the accompanying drawings, A A is the supporting'frame of a quilting-machine; B,Fig. 3, its horizontal needle-bar carrying a gang of needles, 0 G, arranged in a single row, and H its table.

D is the maindriving-shaft, and E the oscillating shaft by which the needle-bar is operated in the customary manner.

The mechanism for actuating the needles, regulating the tension of the threads, driving the shuttles, 850., is such as is found in the best form of quilting-machines of this class, and need not be herein more particularly described.

F F are two separate reciprocating frames or carriages mounted eachupon ways formed in or fixed to the machine under the table thereof. These carriages travel back and forth at a right angle to the longitudinal movement of the fabric, W, carried forward from the one carriage to the other in the machine. The intermittent forward feed of the fabric is produced by carrying it in the customary manner over and under three parallel feedrollers, G G G, Figs. 3 and a, all mounted in the same horizontal plane in bearings formed in one of the frames or carriages, F. These rollers are all geared together at one end (see Figs. 4 and 11) to move in unison. A corresponding pair ofparallel tension-rollers, G G, (see Fig. 3,) are mounted in suitable bearings in the opposite carriage, F, by means of which the fabric, as it moves under the needles, is kept properly and evenly stretched over and above the table H of the machine.

H, Figs. 8, 8, and 10, is an endless cord or band, either single or double, round or flat,- carried over and under one end of each of the rollers G G and G G of the carriages, (see dotted lines, Fig. 3,) and which is led from the rollers G G over a pulley, I, (see Figs. 3 and 10,)upon a shaft, I, mounted in hearings on the carriage F, beneath said rollers G G; thenceover a movable tension-pulley, J, mounted upon the shorter end of a lever, K, pivoted to the carriage in close proximity to said pulley I; thence over a guide-pulley, G at the lower corner of the carriage F, under the pulley I, and back thence over a pulley, M, at the lower corner of the opposite carriage, F, up to the rollers G G. The upper stretch of the cord, extending from the rollers G to the rollers G, is upon the level of the fabric NV, Fig. 3, just above the level of the table H, and it extends immediately under or over one edge of the fabric, so that the operator may hold the fabricand cord together,and thereby guide the fabric by means of the cord. The long arm of the lever K is attached to a spiral spring, K. operating automatically to separate the pulley J from the opposite pulley, I, as is illustrated by dotted lines in Fig. 3 of the drawings, and to maintain thereby a constant tension upon the endless guide-cord H, carried over the pulley G", the initial tension upon the guide-cord being adjusted by means of the pulley M, Fig. 3. The adjustment of this pulley M is facilitated by mounting it in the arm ofa lever, M, pivoted at one end to the frame of the carriage F, and whose outer end beyond the axis of the pulley is enlarged and formed with a curved slot, at, describing an arc hav ing the pivotof the lever as its center, the position of the pulley M with reference to said center being fixed, when adjusted, by means ofa nut, n, screwing upon a pin, n, as shown in Fig. 3.

The intermittent rotation of the feed-rollers G G, by which the forward feed of the fabric W under the needles 0 C is produced, is obtained by gearing the central feed-roller G, by pinions P P, to a shaft, P, which, being mounted in bearings fixed upon the frame of the machine, extends through the frame of the carriage F parallel with and below the outer feed-roller G. (See dotted lines, Figs. 1 and 3,-and positive lines, Figs. 4 and 11.) The pinion P, carried by the carriage, is feathered upon the shaft P seen at 1), Figs. 2 and 11) to admit of a longitudinal movement of the pinion upon the shaft in unison with the travel of the carriage back and forth along the same.

The intermittent movement of the shaft P is obtained from the main shaft D by mechanism, as follows: A pawl, 2, upon the outer end of a vibrating lever, 3, pivoted loosely upon a short shaft, 4, (see Fig. 1,) journaled in a bearing, 5, upon the frame of the machine, parallel with the main shaft D, and beneath the same, as shown in Figs. 1 and 11, engages a ratchet-wheel,6,fixed upon the outer end of the Y shaft 4. The inner end of said vibrating lever 3 carriesa frictionroller, 7, upon a lateral studpin, 8, (see dotted lines, Fig. 1,) and said roller bears against the periphery of an eccentricwheel, 9, upon the shaft D, so that at each revolution of the shaft the leverarm 3 is oscillated, and the ratchet-wheel 6 and its shaft at are thereby turned one point. The opposite end of this short shaft 4 is geared by a small pinion, 10, (see dotted lines, Fig. 2,) to a spurwheel, 11, turning loosely upon a stud, 12, on the end of a fixed arm, S. The wheel 11 gears with a spur-wheel, 13, upon the end of ashaft,

R, which rotates parallel with the main shaft D, in a bracket, R, secured to the frame of the machine, and is geared, by a beveled gear, Q Q, to the shaft P.

The diameters of the wheels 10 and 13 determine the length of the stitch produced by the machine by determining the speed of the feed-rollers; hence by changing either of said wheels the length of stitch may be changed. To provide for an engagement of the intermediate wheel, 11, with the wheels 10 and 13, when a change is made therein, the arm S,carrying the stud 12, upon which said wheel 11 is journaled, is pivoted for adjustment upon the shaft R, and when adjusted is fixed, by means of a lateral bolt, 15, upon an arm, 16, extending from the bracket R, the bolt being made to project through a curved slot, 17, (see Figs.

2 and 11,) in the end of the arm S, and made fast by a nut screwing upon the bolt to bear against the arm. (See Fig. 1.)

The carriages F and F are supported and left free to slide back and forth at a right angle to the row of needles 0 0 upon and between horizontal ways formed by means of projecting strips 22 and 23,fixed upon the frame of the machine, as shown in Fig. 3. The two carriages are made to reciprocate in unison, back and forth,transverscly to the line of moyement of the fabric XV, (see Figs. 2 and 4,) as it is fed forward over and upon said carriages, by means of two parallel horizontal endless screws, 19 19, which are severally journaled and supported in suitable brackets, 20, (see Figs. 2 and 3,) at each end of the machine to pass through and engage fixed nuts 21 upon each carriage.

The two endless feed-screws 19 19 are geared together and made to rotatein unison by means of a transverse connecting shaft, 25, at one end thereof, to which each screw is geared by a bevel-gear, and the reciprocating movement of the carriages is obtained by reversing the rotation of said connectingshaft and screws. The rotation of the feed screws and the automatic reversal thereof at the moment the carriages F F have attained the end of their joint movement in either direction is produced as follows: Two ratchet-wheels, 28 and 29, are fitted and fixed upon the shaft 25, each by means of a lateral collar and a transverse pin -30,Fig. 1. At the side of each a sleeve or collar, 31, is fitted to turnloosely upon the shaft, and a pawl-arm, 32, is made to project radially from the sleeve 31 far enough to carry a pawl, 33, pivoted upon a lateral stud-pin at the outer end of the arm, over the periphery of the ratchet- wheel 28 or 29, against which it is automatically kept in contact by a spring, 34. (See Figs. 6 and 7.) A second arm, 35, projecting radially from each sleeve 31, in a diametrically-opposite direction from that of the arm 32, is pivoted to an arm, 37, extending from a strap, 38, encircling an eccentric, 39, upon the main shaft D. Thus the rotation of the main shaft is made to produce an oscillation of the sleeve 31, which will operate at each reciprocation thereof to cause the pawl 33 to move the ratchet-wheel forward one point. The two ratchetwheels 28 and 29, are, however, formed with their teeth inclined in opposite directions, and the two pawls 32 and 33. severally engaging them, are also set in opposite directions, so that the continuous rotation of the shaft D in one direction will operate to turn the ratchet- wheels 28 and 29 in opposite directions; hence the twopawls may not be brought to bear upon the wheels simultaneously.

A disk, 40, is fitted to rotate loosely upon the shaft 25 at the side of each ratchet-wheel, the diameter of the periphery of the disk being equal to that of the teeth of the ratchetwheel against which it is placed. The pawl 33 is made of such a width as thatit will overlap not only the periphery of the ratchetwheel,-but also that of the adjacent controlling-disk, and by resting upon the periphery of the disk its engagement with the ratchetteeth is prevented. To permit, however, of an engagementof the pawl with the ratchet when desired, a portion, f, of the periphery of the disk 40 is cut away, (see Figs. 6 and 7,) so that when this recessed portion of the disk is in register with the pawl the latter may drop upon the ratchet-teeth. The two controlling- disks 40 and 40 for the two ratchet- wheels 28 and 29 are respectively so adjusted upon the shaft 25 as that when the pawl of the one wheel is in engagement therewith the pawl of theother wheel will be lifted and released, and vice versa.

A change is effected in the positions of the controlling-disk, so as to bring the one pawl or the other of the ratchet-wheels .into action and thereby reverse the intermittent rotation of the shaft 25 by means of a toothed wheel, 41, secured laterally to each disk to rotate with it loosely upon the shaft 25, each toothed wheel 41 being engaged by one of two segmental racks, 42 and 43, each formed upon the end of an arm, 44, projecting radially from a rock-shaft, 45, which is mounted in suitable brackets,46 46,(see Fig. 1,) under the machine and parallel with the shaft 25. As these segmental raeks 42 and 43 are each made to gear with one of the toothed wheels 41, the oscillations of the shaft 45 in the one direction or the other will cause the wheels and theirattached disks 40 to rotate in the corresponding direction, and in view of the adjustment made of said disks tothe pawls, which are controlled thereby, the oscillation of the rock-shaft 45 in one direction will operate to throw one ofsaid pawls int 0 and the other pawl out of engagement with its appropriate ratchetwheel, and eonsequently determine the direction in which the shaft 25, driving the endless screw 1.9,will be rotated.

The outer end of the rock-shaft 45 is carried through the frame A at one end of the machine and is fitted with an arm, 47, fixed thereto to depend radially therefrom. The outer end of this radial arm 47 is widened in a plane at a right angle to the length of the shaft and is slottedfseen at a, Fig. 2)upon an are having the axis of the shaft as its center. Alever, 48, is pivoted loosely upon the outer end of the shaft to oscillate thereon against the face of the arm47, and its lower end is made to engage the arm by means of a pin, 49, projecting from the lever through the slot at in the arm. The slot a serves to allow a certain extent of independent or lost motion to the lever 48 as it swings upon the shaft 45, and when thislost motion is taken up the further movement of the lever in either direction will operate to rock the shaft. The upper end of this lever 48 is pivoted to the end of a horizontal rod, T, fitted to extend freely through the carriage F F, parallel with the feed-rollers G G. Two stops, 50 and 50, are fitted upon the rod on each side of the carriageframe F F, so as to be struck by the frame when the carriage is about to complete its movement in either direction. These stops 50 50 are made to slide upon the rod for adj ustment, and are fixed, when adjusted, by means of set-screws 51 51. The interval between the stops is made to determine the length of the movement of the carriage, and consequently the transverse movement under the needles of the fabric fed forward upon the carriage, for, so soon as the carriagestrikes the stop toward which it is moving its further movement will carry the reversing-rod T with it. The longitudinal movement of the reversing-rod T in either direction will, by reason of its attachment to the lever 48, cause the latter to swing upon its pivot, and, by the engagement of its pin 49 with the arm 47, fixed to the shaft 45, cause the latter to rock. This rocking movement of the shaft 45 will, by moving the segmental racks 44 44, move the disks 40, and

thereby lift the one pawl which is at the time actuating the ratchet" wheel by whose rotation the endless screws 19 19 are turned in the direction required to feed the earriagein the direction in which itwas traveling, and will simultaneously allow the other pawl to dropinto engagement with the opposite ratchet-wheel, and so cause an immediate reversal in the rotation of the screw and consequently reverse the direction of the movement of the carriage.

To obtain a quick sharp movement of the shaft 45 at the instant when the one pawl is disengaged and the other brought into action, and thereby prevent the possibility of a simultaneous engagement of the two opposite pawls with both of the ratchet- wheels 28 and 29 on the shaft 25, which would produce a deadlock in the machine and cause a break, a sharp angular tooth, 6, (see Figs. 2 and 5,) is provided to project from the shaft 45 at a point diametrically opposite the arm 47, and form, in fact, a radial extension thereof, and this tooth e is made to engage and be moved by the one or the other ofthe two inclined faces of a sharp angular projection, 65, formed between two notches, 52 52, in the under side of the free end of a latch-bar, 53, pivoted at its opposite end to one side of the rod T (see Fig.

5) to extend parallel therewith to its outer end.

The latch 53 and its angular projection 65 is made, by means of astrong spring, 54, to bear down upon the tooth with a pressure powerful enough to cause the engagement of the angular projection 65 between the notches 52 52 with either of the opposite beveled faces of the tooth to force the latter over until the tooth has reached the bottom of the one notch or the other. This quick movement of the tooth e and arm 47 causes a quick movement of the shaft 45, to which they are secured, and of the segmental racks 42 and 43, carried by the shaft, and produces thereby the instantaneous reversal of the lateral movement of the carriage required to form a sharp angle in the pattern made by the stitches. The movement of the tooth e and arm 47 is permitted independently of the arm 48, to

j which the rod T is pivoted, by means of the pin 49 and the slot to.

As the projection 65 between the notches 52 and 52 and the tooth e are both angular and wedge-shaped, presenting sharp apices,so soon as the point of the tooth c, in passing from one notch to the other, reaches the apex of the projection 65 between the notches, it must, under the tension of the spring 54 upon the latch, instantly glide into the opposite notch,and may never rest at any point intermediate the two notches. Consequently the rock-shaft 45 may never rest at a point which will permit the two pawls to drop simultaneously into engagement with their respective ratchet-wheels, the quick automatic throw of the shaft 45, and consequently of the controlling disks 40, geared thereto, as described, being produced at the instant the reversing rod T is moved in either direction by the contact of the carriage F F with the stops 5O 50.

The two regulating disks 4.0 are so set or timed upon the shaft 25 in reference to each other as that one of the pawls must necessarily be disengaged from the ratchet appropriate thereto betore the other pawl can take hold of its ratchet.

As'a modification of my invention, I contemplate substituting straight rack-bars 6060 (see Figs. 9 and 10) for the segmental rackbars 43 43, hereinbefore described, to engage the toothed wheels 4141, controlling the disks 40 40, by which the engagement of the pawls 33 33 (see Fig. 1) with the ratchet- wheels 28 and 29 011 the shaft 25 is governed.

The rack-bars 60 are made to slide longitudinally in suitable ways upon a cross-bar, 61, and are united to move in unison by aconmeeting-rod, 62. This connectingrod 62 is coupled to the reversing-rod T by means of an interposed bar, 63, carried by the rod T, and upon the edge of this bar 63 an angular projection or wedge-shaped point, 65, is formed between two notches, 6a 64, similar to the projection and notches 52 52, hereinbefore described. The notched bar 63'is coupled to the reversing-rod T at one end, and at the other by means ofslots 66 66,cut in the notched bar to receive pins 67 67 on said rods. These slots are adapted to allow a limited movement of the notched bar 63 independently fitted to play over said point and into the notches 64 64, and is forced toward them bya powerful spring, 69. (See dotted line, Fig. 10.) The reversing-rod T is, in this case, preferably fitted between the two ends of the carriage-frame F F, and is made to pass through an opening or a notch in a cross-bar, 70, secured to the carriage, and which, when the carriage is about to reach the desired end of its movement in either direction, will strike against one of the adjustable stops 50 50, secured upon the rod T, and thereby move it, in manner as hereinbefore described.

The movement of the rod T will carry the apex of the projection 65 on the link 63 over the tooth 68, forcing the latter down in its movement until, so soon as the point of the I tooth passes said apex, the force of the spring 69, in connection withthe position of the opposite inclined faces of the tooth and notch, will produce a quick forward move ofthe link 63, and with it of the rack- bars 60 and 60 and disks 40 and 40, independently of the rod T, sufficient to change the engagement of the two pawls with their ratchets and thereby cause an instant reversal of the rotation of the shaft 25, in manner as hereinbefore fully described, this-quick independent movement of the link and rack-bars being permitted by means of the slots 66 66.

In the operation of the machine constructed as herein described, so soon as the edge of the fabric carried under the needles is reached, by reason of the lateral movement of the carriage F F, the carriage will come into contact with one of the stops 50 on the reversing-rod T, and will thereby cause a movement of the rod sufficient to carry the angular projection 65 between the notches 52 52 (or 6; 64) over the apex of the spring-actuated tooth c, (or 68,) so that the latter, acting upon theinclined face of the notch beyond this apex, will, by reason of the force of its spring, cause, in manner as described, a quick movement of the disks 40 40, which will operate to disengage the pawl at the time actuating the shaft 25, geared to the endless screws l9 l9, and thereby produce a movement of the carriage in the given direction and to simultaneously allow the second pawl to come into play to reverse the movement of the shaft and screws, and consequently instantly reverse the lateral movement of the carriage and of the fabric carried thereby. In the mean time, as the outer edge of the fabric IIO lies under or upon the endless guidecord H, the operator may readily guide and retain the fabric in exact line or registry with the needles, as required, by simply clasping the fabric and cord together to prevent any tendency which may arise in the fabric to draw out of line in its forward movement.

It will be observed that in my invention as described the two carriages F and F, although both geared to the same shaft, so as to move in unison virtually as one carriage, are not connected by cross-bars, but are so far separated and disconnected from each other, in manner as described, as to admit of an independent adjustment of the one in reference to the other, each upon the endless screw, by which it is made to traverse in the machine, as the varying exigencies of the work to be performed therewith may require. These carriages, moreover, are mounted to move upon bars or ways fixed solidly to the frame throughout their entire length, whereby great advan tags is obtained in thesteadiness of movement .of the carriages over carriages moving, as

heretofore, upon rods supported at their ends only. Although the carriages are preferably both geared to a common shaft, as described, it is evident that they may be connected to move in unison and driven by a single endless screw in manner as described without departing from my invention, which relates to the mechanism for imparting motion to the end less screw.

I claim as my invention 1. The combination, in a quilting-machine, with its needles, the rollers by which the fabric is stretched and fed forward under the needles, and mechanism, substantially as described, for imparting a rotating movement to the rollers and a reciprocating movement to the needles, of an endless cord or band driven with the rollers to move at a right angle with their axes at the samespced as the fabric and in the same plane, whereby a constant marginal guide and support is provided for one edge of the fabric, substantially in the manner and for the purpose herein set forth.

2. The combination, in a quilting-machine, with the carriage F F and feed-rollers G G and G G, of the endless cord H, the guide and tension pulleys J, I, and G, and adjustingpulley M, all substantially in the manner and for the purpose herein set forth.

3. The combination, with an endless reversible driving-screw, a carriage actuated by the screw, a reversing shaft geared to said screw, anda main driving-shaft rotating continuously in one direction, of two opposed ratchet-wheels secured upon the reversingshaft, a controlling disk fitted to rotate loosely upon said shaft againsteach ratchet-wheel, and whose diameter is in part equal thereto, an oscillating arm pivoted upon the same shaft adjacent to each ratchet-wheel, an eccentric or cam upon the main shaft actuating said oscillating arm, a pawl carried by the arm to engage the ratchetwheel and made wide enough to overlap and rest upon the enlarged periphery of the adjacent disk and be thereby lifted clear of the ratchet, a reversing-rod mounted to slide'longitudinally parallel with the endless driving screw, stops fitted upon said rod against which the carriage actuated by the screw will strike asit reaches the limit of its movement in either direction, and thereby move the rod, and mechanism, substantially as described, whereby the longitudinal movement of said rod is made to partially rotate the disks, the two ratchetwheels on the reversing-shaft being arranged with reference to the pawls actuating them, and the controlling-disks fixed upon the shaft with reference to each other and the pawls which they lift, in manner as described, whereby when one pawl is lifted in onedirection the other pawl will be allowed to drop into engagement with its ratchet-wheel, and vice versa, all substantially in the manner and for the purpose herein set forth.

4. The combination,with an endless reversible driving-screw, 19, a carriage, F, actuated by the screw, a reversing-shaft, 25, geared to said screw, a main shaft, D, rotating continuously in the same direction, two opposed ratchet-wheels, 28 and 29, secured upon the reversingshaft, a controlling-disk, 40, fitted to rotate loosely upon said shaft against each ratchet-wheel, and whose diameter is in part equal thereto, an oscillating arm, 32, pivoted upon the same shaft adjacent to each ratchetwheel, an eccentric or cam, 39, upon the main shaft actuating said oscillating arm, a pawl carried by the arm to engage the ratchet-wheel and made wide enough to overlap and rest upon the enlarged periphery of the adjacent disk and be thereby lifted clear of the ratchet, and a toothed wheel, 41, secured to the disk to rotate with it loosely upon the shaft, of a rockshaft, 45, mounted parallel with the reversingshaft, radial arms 14 14, projecting from said rock-shaft, segmental racks 42 and 43 upon said arms gearing each with the toothed wheel 41 of one of the controlling-disks,a radial transversely-slotted arm, 47, projecting from the rock-shaft, a lever, 48, pivoted upon the shaft, a pin, 49, at one end of said lever engaging the slot in the radial arm, a reversing-rod, T, mounted parallel with the endless screw 19 to slidelongitudinally inits bearings and pivoted to the opposite end of the lever 48, a tooth, e, projecting radially from the rock-shaft, a double-notched latch, 53, pivoted laterally to the sliding rod T near its pivot-ed end, an angular projection, 65, formed between the notches in the latch to engage the tooth, a spring, 54, secured to the latch and operating to force the same with a constant tension against the tooth, and steps 50 50, fitted upon said rod and against which the carriage actuated by the screw will strike as it reaches the limit of its movement in either direction and thereby move the rod,

all substantially in the manner and for the purpose herein set forth.

ICC

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5. The combination, in the reversing-gear of a qui1ting-machine,with the reciprocating reversing-rod actuated by the carriage,-the connected racks actuated by said rod, the toothed disks engaged by said racks, and the reversing-pawls controlled by said disks, of an angular projection carried by the rod, an op posed angular tooth adapted to engage said angular projection and force it in the one direction or the other, a spring adapted to enforce the pressure of the tooth upon the project-ion, and a pin and slot by which the connected racks are coupled in the rod and a movement of the racks is permitted independently of rod under the pressure of the angular tooth upon the angular projection when apex of the one is carried over the apex of the other, substantially in the mannerand for the purpose herein set iorth.

6. The combination, with each other and with the needle-bar and needles in a quiltingmachine, of two separate carriages, one at each end of the needle-bar, mechanism, sub stantially as described, for imparting a synchronous, uniform, reciprocating movement 25 to said separate carriages in a direction transverse to the line of needles, guide and ten- WILLIAM KOCH.

\Vitnesses:

A. N. JESBERA, S. A. STAVERS.

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