US2203190A - Bobbinless loom - Google Patents

Description

June 4, 1940.

A. M. DE GEZELLE. SR

BOBBINLESS LOOM 4 Sheets-Sheet 1 Filed Nov. 18, 1938 1mm ARTHUR M. flsEZEL L 55 n 1940- A. MQDE GEZELLE, SR

BOBBINLESS L00! Filed Nov. 18, 1938 4 Sheets-Sheet 2 June 4, 1940. A. M. DE GEZELLE, SR 2,203,190

BOBBINLESS LOOM Filed NOV. 18, 1938 4 Sheets-Sheet $5 June 4, 1940. A, M. DE IGEZEVLLE. SR

BO BBINLESS LOOM Filed Nov. 18-, 1938 4 Sheets-Sheet 4 A I? THUR N DEGEZELLE, SR,

Patented June 4, 1940 "UNITED smrss PATENT OFFICE fiOBiiIfiLESg Arthur M. De Gzje'uasn, rum-nails, Pa. I Application November 18, 15:18, snail he. 241,247 9 claims; (or 13 9-42 6) The present invention relates to aloom, and more particularly, to an automatic bobbinless loom.

One of the objects ,of the present invention is to provide in combination with the ordinary type of looman automatic bobblnless pick carrier, or conveyor, for carrying the weft or filling. A still further important object of the present invention is to provide a weft or filling conveyor which is supplied continuously froman external supply whereby the machine can be maintained in uninterrupted action permitting a single opcrator to attend a considerable number of separate looms.

' A still further important object of the invention is to provide a novelly constructed automatic pick carrier or conveyor, which is supplied from each side of the loom and which eliminates the necessity of employing the usual type of bobbin shuttles now in use.

A still further importantobject of the invention is to provide an automatic bobbinless pick carrier, or conveyor, which is so constructed, that it will automatically grip and transfer the supply 5 on each side of the loom and after placing the same in the warp shed automatically release the free end thereof.

Another important object of the invention will be found to reside in the novel automatic means for cutting the weft thread or filleradjacent the cloth. a

Other objects of the invention, including durability, low cost of manufacture, andsimp'licity of operation, will become apparent from a study of the description, when considered in connection with the accompanying drawings, wherein like reference numerals designate corresponding parts throughout the same, and in which,

Figure 1 is a front elevational View of a loom, Figure 2 is a top plan view of the lay beam thereof,

Figure 3 is a vertical sectional view of Figure 1, taken on line 33 thereof looking in the direction of the arrows, and illustrating the mechanism which is used for operating the cams which actuate the grippers of the automatic bobbinless pick carrier, or filler conveyor,

v Figure 4 is a vertical sect'onal view of Figure 3, taken on line 4-4 thereof looking in the direction of the arrows, p

Figure 5 is a vertical sectional View of Figure 4,;taken on line 5 5 thereof looking i'nythe dit qn of the arrows is a we p n V ew Qt t automatic .5 bobbinless pick carrier or conveyor,

Figure '7 is a bottomlplan view thereof, -Fi'gure '.8 is a longitudinal sectional View of Figure 6 takenon line 8.-8 thereof,

' Figure 9 is an enlarged bottom View of the conveyor,

.FigurelO is a fragmentary longitudinal sectional View of the'conveyor, illustrating the position of the grippers, upon being actuated by the automatic cam, I

' inserted the weft in the warp and is in position for gripping or picking up the supply of weft on the right hand side of the loom and automatically cutting the same from the supply adjacent the 2 cloth,v l r Figure 14 is a vertical sectional view of Figure l3itaken on line l4-I4 looking in the direction of the arrows, Figure 15 is a diagrammatical plan view showing the position of the conveyor after the supply has been cuttherefrom, V Figure ,16 visa view similar to Figure 13 showing the conveyor on the left hand side thereof,

Figure 1'? is a fragmentary vertical sectional 3 View showing the position of the cutting ,knife when the lay beam is in its rearmost position, Figure 18 is a fragmentary vertical sectional view showing the position of the cutting knife in the. forward position of the lay beam,

Figure 19 is a partial sectional View of the 35 shuttle showingthe actuating arm and the lostmotion connection in an operative position,

Figure 20 is asimilar view showing the lostmotion connection in the inoperative position,

I Figure 21 is a fragmentary vertical sectional View of Figure 6 taken on line Zn-20 thereofQ.

In the accompanying drawings wherein for 'thepurpose of illustration, there is shown a preferred embodiment of the invention, the reference numeral 22 generally designates the upstanding frame support of the loom, on whichthere is mounted a transversely extending rod 24 having secured n the usual manner thereto thel ay sword 26 which carries the lay beam is; In the s usual manner, on each ,end of the rod 24, there are mounted picking sticks 3 0 which'are slidable in ther slots'32 of the lay beam 28, On the frame I there mounted a pick shaft 34 which adapted to driving mechanism not shown to operate the picking sticks and the lay swords. Obviously it is not necessary to show the com plete construction of a loom, and only that part thereof has been illustrated which is necessary to illustrate the operation of the present invention.

Referring now to Figures 6 to 12 inclusive, and Figures 18 to 20 inclusive, it will be seen, that there is illustrated a novelly constructed bobbinless pick carrier or Weft conveyor which comprises a shuttle 38 having a longitudinally extending groove 00 in the bottom portion thereof, and a substantially centrally disposed rectangular shaped cavity therein in which the mechanism is arranged. Within the centrally disposed cavity there is secured a supporting frame 412 in each end of which there is pivotally mounted a gripper 44 or 30. It will be observed, that the grippers 44 and 40 are pivotally mounted on transversely extending shafts 48 secured within the frame 02 and as clearly illustrated in Figure 12 comprise a gripping finger 50 and 21. depending integral leg portion 52 disposed at right angles thereto. On the inner side of the leg portion 52 there are provided spacedly. disposed hooks 50 and on the opposite outer side of the leg portion 52 there is secured an actuating arm 50 which has pivotally mounted in the free end thereof a roller 58. The fingers 00 as clearly illustrated are substantially flat on their upper surfaces and of parabolic shape. It will be observed that they are of substantially semi-circular shape in vertical cross-section and at the outer free end thereof, terminate in a substantially pointed end. Adjacent the end of the finger on the underneath side thereof there is provided an inwardly directed integral hook which is disposed adjacent to the free end thereof in spaced relation to the body of the finger. The innermost end of the finger adjacent the leg 52 and on the front side thereof is provided with a recessed portion 62 while the rearward side thereof is substantially flush with the remaining portion of the finger. Within each end of the frame 42 there are provided sockets of substantially the same configuration as the contour of the fingers, and receive the respective fingers 44 and 46 in their downward position. It will be observed that when the fingers M and 46 are in their lowermost position and received within their respective sockets the upper fiat portions thereof are flush with the upper flat portion of the shuttle.

Disposed substantially centrally of the casing 42 is a transversely extending shaft 64 on which there is pivotally mounted centrally thereof, an arm 66 having in the upper end thereof an aperture 68 and in the lower end portion thereof a transversely extending slot 10. Connecting arms 72 and 14 are respectively connected to the upper and lower end of the arm 66 and to the lower free ends of the depending legs 52 of the grippers 44 and 46. As clearly illustrated in Figure 9, to the arms 54 of each gripper there are secured at one end springs which are connected at their other end to the centrally disposed shaft 64. The actuating arms 50 and their rollers in the lowermost position of the grippers 44 and 46 project through an opening in the shuttle and are disposed within the path of the longitudinally extending slot 40, to the end, that upon an upward pushing of the respective arms, there is brought about an opening of the grippers 44 and 4B. It is to be observed in this connection, that by virtue, of the transversely extending slot 10 in the lower end of pivotally mounted arm 06,

as clearly illustrated in Figure 10, upon the raising of one or the other of the actuating arms 56 of the grippers, one of the grippers is raised a slight distance out of its recess, prior, to the raising of the other gripper from its recess. Of course, upon a further raising of the actuating arm 50 the other gripper is then raised out of its respective recess, the amount of movement of the actuating arm 55 depending, upon the width of the slot I0 and the position of the connecting pin of the actuating arm l0 therein. It will thus be seen, that the shuttle 38 is adapted in the usual manner, to be reciprocallyv moved in the lay beam as clearly illustrated in Figure 2, by the contacting thereof of the picking sticks.

Adjacent each box 86 and 88 of the lay beam into which, the shuttle is respectively received, there is arranged a longitudinally extending slot 90 which receives an actuating cam 02 for contasting the roller 58 of the grippers and actuating the arm 56 to effect an opening of the grippers.

The'lay beam is provided with a transversely extending slot 90 therein, in which there is disposed a longitudinally extending shaft 98 on which there is mounted a pair of gears I00 and I02. The cams'92 are pivotally mounted within the lay beam and are ridable on the gear I00, it being observed, that as the gear is rotated, the cam 90 is raised by the respective teeth of the gear and permitted to drop therebetween into its lower position. The gear I02 is provided with twice as many teeth as the gear I00, and is rotated by means of an adjustable arm I06 which is pivotally connected at one end to the girt I08. As clearly observed in Figure 5 the arm I06 is provided with a projection or tooth H0 thereon which is received in theteeth of the gear I02 and it will be apparent by one skilled in the art, that upon a forward and backward movement of the lay sword, and the lay beam, the gearsi02 and I00 are rotated, to effect a raising and lowering of the respective cams 92. Obviously, this structure is mounted on each end of the loom.

It will thus be apparent, that the actuating mechanism for effecting 2. raising and lowering of the cams 92 may be so timed, as to effect a raising and lowering of the cams thereof at a predetermined time to effect an actuation of the arms 50 of the respective grippers 44 and 40 upon. a predetermined passing position of the same thereoverJ Referring now to Figures 13 to 16 inclusive, wherein there is shown the manner in which,

the shuttle or conveyor functionsto lay the weft within the warp shed, it will be seen that upon each side of the loom there is provided a source of thread supply I20. The thread is run through a tensioning device I26 which may be'of any construction. In Figure 13 it will be observed that the shuttle or conveyor has passed substantially through the shed of warp, and is projecting out about one third of its length, the gripper 44- holding one end of the left hand supply of thread and carrying the same thereacross. At the position illustrated in Figure 13 of the conveyor, the same is just passing over the cam 92 which has been raised by the aforementioned movement just described, causing the gripper 40 to be raised to a height higher than the gripper 44, receiving the thread-of the left hand supply I20 therein. At this point the gripper 44 is raised slightly from its socket and the free end of the thread thereof by virtue of this slight raising and the right hand movement of the conveyor is permitted to become disengaged from 75 between the gripping projection 62 audits coo erating ocket and permitted to slide teheath the hook 60, to the end, that upon a further right hand movement of the conveyor the free end of the thread is freely slidable therein, until the same becomes detached upon the positioning or movement of the shuttle within. the right handbox86. In g In the girt adjacentthe cloth within transversely extending apertures there are slidably mounted rods I28 which carry on the rear free ends thereof arcuateshaped knives I30. The rods are held in their forward position by the coil springs I34 which are disposed around the rods between the outer side of the girt and an adjusting nut I35. Thus the knives are normally urged in a forward direction.

As seen in Figure 17 the knife is of substantially arcuate shape and is provided with a forwardly disposed cutting surface. On the lower portion of the rod there is provided adjacent the knife a projection I31 to which one end of a strap or chain I39 is connected. The other end of the strap is secured to the front portion of the lay beam. Thus on the backward movement of the lay beam as illustrated in Figure 1'7, the rod and knife are pulled rearwardly through the medium of the strap I39 to position the knife under tension behind the beat up line I. When the conveyor is positioned as shown in Figure 13 or 16 with the outer gripper engaging the fill, the lay is moving forwardly into beating position and the conveyor outwardly into its box. The forward movement of the lay beam effects a slackening of the strap I39 causing'the knife under spring tension to be moved forwardly and this movement together with the outwardv movement of the conveyor and the contacting of the fill therewith severs the fill from the cloth as illustrated in Figure 15. Thus, in the position of the shuttle or conveyor as shown in Figure 13 the cam has raised the arms of the right hand gripper 46 to its uppermost position and at the same time has slightly raised the gripper 44 errabling the thread to pass from its gripping position. between the gripper M and its socket to a free sliding position within the forward hooked portion of the gripper. hand movement of the shuttle toward its right hand shuttle box and a forward movement of the lay beam the cam 92 drops between the teeth of the gear IIlEl causing the gripper 46 to be lowered into gripping contact with the right hand weft supply for effecting a. severing of the fill as just described.

Then in the usual manner, the lay beam and reed continue to move forward to beat up the weft thread. Upon the rearward movement of the lay beam, in the usual manner, by the movement of the pick stick, the shuttle is moved across the lay beam pulling the right hand weft supply across the warp shed to the position, illustrated in Figure 16, whereupon, upon a forward movement of the lay beam, the left hand cam 92 as hereinb-efore described with respect to the right hand cam is raised causing the gripper 44 to be raised, raising the gripper to its uppermost position, where between the gripper and its socket there is received the left hand weft supply and at the same time, this uppermost movement of the gripper 44 slightly raises the gripper 46 to permit, of the right hand weft supply which has just crossed the weft shed to, by virtue of the left hand movement of the shut- Upon a further right left h that op ,m jm i t e rstood that it is c p beor ya us rnodi ca one, without departing a s ss ent: ar

billy S fiC'rl S all beimpOsed t e'iepn, as; are indicated in the prior art the appended claims.

Wha isle di V 1. In a shuttle of the 's described com ing .body, a pair of grippers pivotally mounted djac nt each end of the body and normally beingrecjived in a recess in said body flush; with conhected t o said grippers for cooperatively actu- Pa r f r rs v i 'l i li s e e nt end of the body and normally being received in a recess in' said body flush with the surface thereof, operating mechanism connected to said grippers for cooperatively actuating said gripe arorsintibna cycle or operation is re thesurfac'e" of said body, operatin mechanism pers, actuating armssecured' to each of said picks, said operating mechanism' includinga lost-motion connection whereby upon the operation of one" or the other of the actuating arms or'iebf the grippers is raiseda predetermined distance before the other gripper is raised out of its recess.

31'Iiia shuttle of the class described comprismg an elongated body having a centrally dis posed cavity therein and a recess in the upper portion thereof adjacent each" end thereof, a gripper pivotally mounted in each of said recesses and normally having: its upper surface flush with the upper surface of said body, an actuatits arrli carried by each gripper, each of said grippers on its underneath side being provided inwardly adjacent the forward end with an inwardly directed hook, the inner portions of said grippers being reduced in size on one side thereof from the central portion thereof, an operating mechanism in said cavity connected to said grippers for cooperatively actuating said grippers, actuating arms secured to each of said grippers, said actuating mechanism being adapted upon the operation of one or the other of the actuating armsto permit of the raising of the gripper actuated by the arm a predetermined distance out of its recess before the other gripper is moved a' predetermined distance from its recess.

4. In a shuttle of thevclass described comprising an elongated body having a centrally disposed cavity therein and a recess in the upper portion thereof adjacent each end thereof, a gripper pivotally mounted in each of said recesses, and normally having its upper surface flush with the upper surface of said body, an actuating arm carried by each gripper, each of said grippers on its underneath side being provided inwardly adjacent the forward end with an inwardly directed hook, the outer ends of said grippers adjacent the hooks being tapered and reduced in cross-sectionally area from the central portion of the grippers toward the ends thereof, defining a space between the grippers and their recesses, the inner portions of said grippers being reduced in size on one side thereof, an operating mechanism in said cavity connected to said grippers for cooperatively actuating said grippers, actuating arms secured to each of said grippers, said operating mechanism being adapted upon the operation of one or the other of the actuating arms to raise one of the grippers to a predetermined distance out of its recess to automatically raise the other gripper a predetermined lesser distance thereof out of its recess.

5. In a shuttle of the class described comprising an elongated body having a centrally disposed cavity therein and recesses in the upper portion thereof adjacent each end thereof, a gripper pivotally mounted in said body and normally being disposed in each of said recesses and having its upper surface flush with the upper surface of said body, an arm pivotally mounted in said cavity, said arm adjacent the end thereof being respectively provided with an aperture therein and a transversely extending slot, an operating link having one end pivotally connected to one of said grippers and the other end pivotally connected by a pin in said aperture, a second operating link pivotally and slidably connected by a pin in said slot at one end thereof and having the other end pivotally connected to the other gripper, resilient means normally urging said grippers in their innermost position in the recesses, and actuating arms for moving said grippers out of their recesses.

6. In a shuttle of the class described comprising an elongated body having a centrally disposed cavity therein and recesses in the upper portion thereof adjacent each end thereof, a gripper pivotally mounted in each of said recesses and normally having its upper surface flush with the upper surface of the body, an actuating mechanism in said shuttle connecting said grippers and a lost motion connection in said actuating mechanism whereby one or the other of the grippers is moved to a predetermined position before actuating the other gripper.

7. In a loom for weaving, a shuttle adapted to draw weft from an outside supply on each side of the loom thereof, comprising a pair of pivotally mounted grippers on said shuttle, an operating mechanism connecting said grippers, a lost motion connection in said operating mechanism,

means for moving said shuttle periodically back and forward between the warp shed of the loom, cam means for automatically actuating said operating mechanism and the grippers to release the inserted weft and grasp the new weft supply, knife means carried by the girt adjacent each side of the cloth for severing the weft, and connecting means between the knives and the lay means for moving said knives to an inoperative position upon backward movement of the lay means and permitting them to move to an operative position upon forward movement of the lay means.

8. In a loom for weaving including a lay means, pick sticks on each side thereof and a'girt, a

shuttle adapted to draw weft through the warp.

shed from a source of supply on each side of the loom, said shuttle having pivotally mounted grippers adjacent each end thereof, operating mechanism connecting said grippers, a lost motion connection in said operating mechanism for moving said grippers to predetermined positions for releasing the inserted weft and grasping the new supply adjacent each end of the lay means, cams for actuating said operating mechanism and means actuated by the movement of the lay means to predetermined positions, for moving said cams to operative and inoperative positions to actuate said operating mechanism for releasing the inserted weft and grasping a new supply.

9. In a loom for weaving including a lay means, pick sticks on each side thereof and a girt, a source of weft supply on each side of the loom, a shuttle actuated by said pick sticks adapted to draw weft through the warp shed from the source of supply on each side of the a" loom, said shuttle having pivotally mounted grippers adjacent each end thereof, operating mechanism connecting said grippers, a lost motion connection in said operating mechanism,

cams for actuating said grippers, means actuated by the movement of the lay means to predetermined positions for moving said cams to operative and inoperative positions to operate said grippers and operating mechanism for releasing the inserted weft and grasping a new supply, knife means carried by the girt adjacent each side of the cloth for severing the weft, and connecting means between the knives and the lay means for moving saidknives to an inoperative position upon backward movement of the lay means and causing the knives to move to an operative position upon forward position of the lay means.

ARTHUR M. DE GEZELLE. SR.

Images