US2250728A - Apparatus for forming leases in warps - Google Patents

Description

July 29, 1941.

Filed Aug. 13, 1940 J. W. SHERRILL;

APPARATUS FOR FORMING LEASES IN WARPS 5 Sheets-Sheet 1 Zhwentor;

3 JAMES WSHERR/LL (Ittomegs y 29, 1941. J. w. SHERRILL 2,250 72 APPARATUS FOR FORMING LEASES IN WARPS I Filed Aug. 13, 1940 5 Sheets-Sheet 2 invent or. JAMESW .SHERE/LL attorneys July 29, 1941- J. w. SHERRILL APPARATUS FOR FORMING LEASES IN WARPS 5 Sheets-Sheet 3 Filed Aug. 13, 1940 mm mm Zhwentor! RR/LL,

JAMEs W 5H5 attorneys July 29, 1941. J. w. SHERRILL APPARATUS FOR FORMING LEASES IN WARPS Filed Aug. 13, 1940 5 Sheets-Sheet 4 RT] 3nventoi: JAMESWSHERB/LL Gttorneg 5 July 29, 1941. J.'W. SHERRILL APPARATUS FOR FORMING LEASES IN WARPS 5 Sheets-Sheet 5 Filed Aug. 13, 1940 Zhwentor attorney 5 Patented July 29, 1941 APPARATUS FOR FORMING LEASES IN WARPS James W. Sherrill, McAdenville, N. 0., assignor of one-half to Daniel J. Stowe, Belmont, N. 0.

Application August 13, 1940, Serial No. 352,451

4 Claims.

This invention relates to an automatic leasing machine to be used in connection with warp handling apparatus, such as ball warpers, singers and the like, whereby leases can be made in the warp without stopping the same.

It is a well known fact among those versed in textiles that it is necessary to form sheds in a warp at predetermined points and pass therethrough a thread to separate the ends in two or more sections. Although the distance between the lease points varies, it has been found that 500 yards is a convenient length of warp between these points. Since the average warp beam contains 10,000 yards or more of material, it is evident that quite a number of leases must be taken; hence the necessity of having a machine for quickly and effectively doing this work. 7

It is an object of this invention to provide a machine for taking a lease in a moving warp which is capable of automatically releasing all portions of the lease thread simultaneously, so that a straight lease will be provided, Specifically the releasing means comprises a lease string clamp located at each edge of the warp and a retractible comb therebetween. The comb penetrates the warp and prevents the lease string from moving until the Warp moves a predetermined distance, at which time the ends of the lease strings are automatically unclamp'ed and the comb is simultaneously retracted to permit the string to move along with the warp.

It is another object of this invention to provide a leasing machine capable of inserting a lease string in a warp of minimum length. Usually the lease string extends across the warp two times and has its ends tied together. Heretofore, the points in the warp at which the lease thread was inserted were widely separated, thereby resulting in a portion of the lease thread projecting beyond the selvages of the warp. These projecting ends are objectionable because they frequently hang in machines subsequently used in the processing of the yarn, such as mercerizing machines and the like. In the present invention, the points at whichthe lease thread is inserted through the warp are close to each other, resulting in less overhang beyond the selvages.

Some of the objectsof the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which- Figure 1 is a view of my device shown in association with a ball warping machine;

Figure 2 is an elevation, taken along the line 2-2 in Figure 1, with certain portions thereof,

broken away and other portions shown in section, showing the interior mechanism of the lease forming apparatus;

Figure3 is a vertical sectional view taken along the line 3-3 in Figure 1;

Figure 4 is a'plan view, showing the reed in section, taken along the line 4-4 in Figure 1;

Figure 5 is a transverse vertical sectional view taken along the line 5 5 in Figure 4;

Figure 6 is an isometric view of a portion of the shed forming reed shownin the right hand portion of Figures 4 and 5;

Figure? is an isometric sectional view taken along the line l'! in Figures 2 and 4;

Figure S is an isometric sectional view taken along the line 8-8 in Figures 2 and 4;

Figure 9 is a vertical sectional view taken along the line 9-9 in Figure 3;

Figure 10 is an isometric view of the lease thread hook bar with the central portion thereof broken away;

Figure 11 is an isometric schematic view showing one position of the parts of the lease forming apparatus during the taking of a lease;

Figure 12 is an isometric view similar to Figure 11, but showing the position of the lease forming apparatus at another time during theforming of r the lease;

Figure 13 is a schematic wiring diagram of the invention;

Figure 14 is a plan view of the lease forming apparatus showing -a slightly modified form of means for inserting the ends of the lease thread through the moving warp sheds;

Figure 15 is an elevation looking at the near side of Figure 14;

Figure 16 is an elevation looking at the far side of Figure 14; a

Figure 17 is a transverse vertical sectional view 7 taken along the lines l'|l'l in Figure 15;

Figure 18 is an isometric detailed view showing the position of one of the lease thread inserting prongs as it appears when it has penetrated the shed and is between the clamping 1 end l2 emanating therefrom which passes through a comb M on a warper l5. After passing through the warper, the ends again pass through another comb I6, and at this time, theends are in a sheet form commonly termed a warp,

,andwhich is broadly designated by the reference character W. As heretofore stated, it is desirable to form a lease at predetermined intervals in this warp and therefore for the convenience of description and illustration the warp is divided into two layers, namely, WI and W2. As a general rule, the warp ends WI and W2, alternate, that is every other warp is WI and each of the remaining warp ends is W2, although it is to be understood that any arrangement of the warp ends can be made without departing from the spirit of the present invention. In other words, the warp ends WI, when forming a shed, are divided into one layer andthe warp ends W2 are divided into another layer and it is between these two layers that the lease string is inserted. g

By observing Figures and 6, it is seen that each warp end WI passes through an elongated slot or dent I1 in reed I8; whereas, the warp ends W2 pass through a very much shorter slot or dent I 9 in this same reed. When the layers WI" and W2 travel in a common plane forming a single warp W, the comb I8 is disposed in a vertical position as shown in Figure 1; therefore, the warp ends W I and W2 will travel in the central portions of their respective slots or dents in the reed I8.

The reed I 8 is fixedly secured upon the free end of levers 2I, said levers having the other ends thereof fixedly secured to a rod 22, and this rod is mounted in brackets 23 on lease forming apparatus 24. Fixedly secured to one end of the rod or shaft 22 is a lever 26, said lever having its free end mounted in a slot 21 of plate 28 (Figure 2). This slot has notches or indentations 29 and 30 therein, into which the projecting portion 25a of lever 26 is adapted to fit. When the comb is in bold line position as shown in Figure 1, the projection 26a of the lever will fit into the notch or cavity 23 (see Figure 2). On the other hand when the comb I3 is in the uppermost dotted line position I8a, the projection 26a of the handle 23 will engage the notched portion 30. Whereas, if it is desired to lower the comb I8 to the dotted line position l8b in Figure 1, the lever 26 and the projection 26a is allowed to rotate to the uppermost portion of slot 21.

When the comb I8 is rotated upwardly to dotted line position I8a (Figure 1) the warp ends W2 will be engaged by the lower portions of the short slots I9 in the reed I8 (see Figures 5 and 6) and therefore, these warp ends will be raised to uppermost dotted line position, thus forming a shed. Due to the fact that the slots or dents I1 are very much longer than the slots or dents I9, in the reed I8, the warp ends WI will not be disturbed but continue to travel in a horizontal plane. Likewise when the comb I8 is lowered to dotted line position I81), as shown in Figure 1, the

ends W2 will be contacted by the upper portion of the short dents or slots I9 and therefore be moved to lowermost dotted line position shown in Figure 1, thus forming a second shed. In the last shed, the Warp ends WI will still travel in a substantially horizontal plane.

The reed I8 is rotated to the positions I8a and 18b when it is desired to form sheds through which the ends of a lease string 32 are inwoven successive filling ends in a piece of cloth The comb I8 is adapted to vertically manipulate the Warp ends W2 relative to the uppermost portion of the lease forming apparatus 24. After the shed has been formed and the lease string placed therein, the string is held in position until a predetermined length of warp has passed by the leasing machine at which time the lease thread is automatically released-from the apparatus 24 and allowed to pass along with the warp W over header roll 35 and then downwardly onto cheeses 36 of winding machine 31.

The leasing apparatus comprises a pair of hollow upright supporting members 40 and 4|,

the upper ends of which have mounted thereon a plate 42. Plate 42 has a plurality of vertically disposed slots in the opposed edges thereof in which vertically disposed splits or wires 43 and 44 are adapted to have vertical movement. The splits 43 are alined in one row to form one comb, whereas the splits 44 are alined in another row to form a second comb which is parallel to the first comb and disposed-only a short distance away. Figures 2, 3 and 9 illustrate the structure of the lease forming apparatus and it is here seen that the lower ends of the splits 43 and 44 are secured to an inverted U-shaped bar 45, said bar being mounted on the upper end of a vertically slidable shaft Shaft 46 has its lower end slidably mounted in a hollow shaft 41, which, in turn, is supported by side pieces 48. These side pieces serve as supports and braces and are attached to the spaced upright members 40 and 4|.

The lower end of the shaft 46 has a tension spring 50 secured thereto, the lower end of said spring being secured to a cap member 5I which closes the lower end of the hollow shaft 41. The spring serves to pull the splits 43 and 44 downwardly at all times to the position shown in Figure 2, at which time the upper ends thereof are flush top, or slightly below, the top edge of the plate 42. In order to confine the splits 43 and 44 in their respective rows of notches cut i in the plate 42, suitable fiat bars 55 are secured to opposed sides of the plate.

There are times when it is necessary'to raise the rows of splits 43 and 44, such as when a lease thread is being drawn through the shed of a moving warp. The function of these rows of splits is to prevent the inserted lease thread from moving longitudinally along with the warp. When it is desired to raise the combs or splits'43 and 44 from the position shown in Figure 2 to the position shown in Figure 3, a suitable handle 56 is employed, said handle being pivoted as 'at' 51 to the upright 4|. The innermost end'of the handle 56 has a slot 58 therein for accommodating a bolt 59 in the lower end of a vertically disposed rod 60. This rod has its intermediate portion slidably mounted in flange 6| of the hollow shaft member 41 and the upper end of this rod engages a suitable sponge rubber washer 62. Member 62 is disposed around the shaft 46 and directly over the flange BI, and serves to prevent noise and vibration as a result of sudden loweringof the combs or splits 43 and 44.

Whenthe splits 43 and 44 have been raised to the position shown in Figure 3, a suitable locking mechanism automatically comes into action to latch the splits in this position. This locking mechanism comprises levers'65 and 66 pivoted as at 61 and 68, respectively, to the bars 48. Thelower end of the lever 65 has a projection 55a whichextends horizontally through a 4 slot ID in the hollow shaft member 41. After the lower end of the shaft 46 has beenmoved upwardly sufficiently to clear the projection 65a, this projection is rotated beneath the shaft 46 to thereby serve as a latch. Simultaneously, with the movement of the projection beneath the shaft 46 (Figure 3), the other end of the arm 65 moves downwardly against projection 66a and is engaged by hook member 66, which serves to hold the lever 65 in position until it is released by means which will be hereinafter described. Asthe horizontal leg of lever 65 moves downwardly, the end thereof engages projection 66a on lever 66 to cause a slight clockwise rotation of the hook on the upper end thereof, thereby causing the hook to be in the path of the horizontal leg when it again moves upwardly.

Suitable means are also provided for clamping the ends of the lease string at opposed edges of the warp. This clamping means is actuated simultaneously with the raising of the splits 43.

and 44 which serve as combs for preventing longitudinal movement of the inserted lease string along with the warp. One of the clamping means comprises a plate 15 which is secured by any suitable means such as screws I6 to one end of plate 42. Figure 7 illustrates this structure in detail. It is here seen that the plate has a groove 18 on the under side thereof which accommodates the intermediate portion of the lease string 32.

When it is desired to take a lease, a string of suitable length is doubled upon itself, and the central portion of this string is placed in the groove 78 thereby allowing the ends to fall downwardly toward the floor. When the splits or combs 43 and 44 are raised from the position shown in Figure 2, to the position shown in Figure 3 a suitable clamping member 80 is caused to move upwardly into the groove 18 and clamp the intermediate portion of the lease string 32 in position. This clamping member is mounted on the upper end of a rod or shaft 8!, which shaft reciprocates up and down in bore 82 disposed in the plate 42. The intermediate portion of the rod 8| has a slot 84 therein (Figure 3) which is penetrated by a projection 85 extending laterally of the warp from the end of the member 45, said member being the member which supports the combs or splits 43 and 44. In order to permit a substantial vertical movement of the projection 85, a vertically disposed slot 81 is cut in the sidewall of support 46. and 8 9 are disposed above and below the projection 85, respectively. Theslots 84 and 81 and spring 88 permit a relatively, small amount of vertical movement of members 80 and SI. Figure 3 shows spring 88 compressed, at which time, the upper end of the clamping member 8!! is engaging the least string 32.

The clamping means on the other end of the lease forming apparatus is very similar to the clamping means just described (Figures 3 and 8). Likewise the member 45 has a projection 9I extending therefrom laterally of the warp through a slot 92in the upper end of hollow support 4|. Within the support 4% the projection 9| penetrates a slot 93 in a downwardly extending rod 94. This rod has its upper intermediate portion slidably mounted in a bore 95 cut in the lower surface of the plate 42 and the extreme upper end of the rod 534 has a plate 98 integral therewith upon which the inserted ends of the lease string 32 are adapted to rest. Disposed above and below, respectively, the projection 9| are Also springs 88 sprin s 99 and IOO, :which serve as a cushion to allow' the, plate 98; onthe upperend of the rod 94 to resilientlyengage the ends of lease string 32 and press them upwardly against overhanging stop IIJI. Stop IIII issecured to a lug I02 by any suitable means such as screws I03, said lug being an integral part'of the plate 42 (see Figure 8). It istherefore seen that each time the combs 43 and 44 are raised to the position shown in Figure 3 that the clamping members and 98 will simultaneously be moved upwardly in contact with groove 18 and overhanging member IUI respectively. On very narrow warps the combs 43 and 44 may be dispensed with and the selvage clamps employed to hold the inserted lease string, or if desired the combs may be used without the clamps. It will be noted by referring to Figures 2 and '7 that the plate (5 has an upstanding pinIIlE. This pin serves as a guide for the end of lease bar. I01 which is shown in Figures 10 and 11. One end of the lease bar has a hole I98 therein and a slot I09 which leads from this hole to the edge of the bar. This-slot permits the lease thread to be inserted therethrough and into the hole I08. The other end of the bar It! ,has a handle portion I I0 which the operator uses when alease is being-taken. V j V.

The operation of the invention is as follows: a lease thread 32 of suitable length is doubled upon itself and the intermediate portion thereof inserted in the groove I8, shown in Figures 2 and 7. Then the handle 26 (Figure 1) is rotated downwardly until the reed I8 is raised to dotted line position IBa. At this time, the warp ends WI will be in a substantially horizontal plane, whereas the alternatewarp endsW2, will be in raised dotted line position thereby forming a shed. At this time, the member Hi! as shown'in Figure 10 will be inserted between the layers WI I and W2 and then moved longitudinally of the warp until it rests upon plate 42 in the position shown in Figure 11. Now, the portion nearest the observer of the member liil is resting beneath the overhanging portion l ill and on top of the. clamping'plate member 68; whereas the portion remote from the observer isresting directly on top of the plate I5. One end of the lease string 32 is. then placed in the hole or hooked portion I68 of the member I01 after which the lever 56 in Figures 2 and 3 is pressed so that the combs or splits 43 and 44 will be raised from the position shown in Figure 2 to the position shown in Figures 3 and 12. At this time, the bar iIll is pulled towards. the observer in Figure, 11 to thereby draw one end of the clamped lease string 32 through the shed above the warp ends WE and below the warp ends W2, and also to be drawn beneath the overhanging member Ill! and above the clamp member 98.

It should be borne in mind that immediately.

upon the raisingof the combs 43 and 44, that the clamping members 80 and 98 will'simultaneously be raised to clamp the lease string 32 and the bar illl. However, this clamping action will not be suflicient' to prevent the bar It? from being moved toward the observer in Figure 11 to draw the end of theflease string 32 between the warp ends WI and'WZ and between the members IilI and98. m I I The next step is to rotate the lever 26 in Figure l in a clockwise manner until the reed I9 moves downwardly to dotted line position I'Bb, at which time the warpWI is substantially horizontal and the warp W2 is injlowermostdotted line position.

Then the bar I9? is inserted between the sheds WI and W2 and moved longitudinally of the to be an endless band which is loosely woven into the warp.

After tying the lease string, the combs 43 and 44 are allowed to remain in-raised position to prevent the lease string from moving along with the warp. Also the clamping members 80 and 98 are in clamping position to clamp the ends of the inserted lease string.

When a predetermined number of yards of warp have been run past the leasing machine, means are automatically actuated to allow-the clamping members 98 and 80 to release the ends of the lease string and allow it to move along the warp. This means comprises a magnet II6 (Figure 13) which has a wire II'I leading therefrom, and the other eild of the wire is adapted to be contacted by switch bar H8. The other side of the switch bar is adapted to make contact, at times, with wire II9, said wire leading to battery I20. Wire I2I leads from the other side of the battery I and is adapted to have its other end contacted at times by another switch bar I22, said switch bars H8 and I22 being joined to a common bar I23 which is actuated by a cam I24 on counting mechanism I25. When a predetermined number of yards have been run, the counting mechanism rotates the high side of cam I24 against the bar I23 thereby causing the bars H8 and I22 to close the circuit between wires H1, H9, I2I and I26. The current is then allowed to flow through the magnet II6, which, in turn, will cause the latch 66 to rotate in a counter-clockwise manner and release the'end of lever 65, which in turn will release the shaft 46 and the combs 43 and 44 to allow them to move downwardly under the force of spring 50.

Leading from the other side of the magnet I I6 is a wire I2'I, said Wire leading to terminal I28. Likewise wire I26 leads to a terminal I29 and both of these terminals are normally contacted by a bar I30 of switch I32 which bar is normally urged into contacting relation by compression spring I3 I.

When the combs 43 and 44 are in raised position, the contacts I28 and I29 are engaged by the bar I30, but immediately upon falling, this contact is broken. The purpose of the switch I32 is to insure that the current will be broken immediately after the solenoid I I6'has been energized to allow the'combs to fall. Sometimes, the machine, for one reason or another, is stopped within a yard or so after the lease string has been released by the combs and clamps. Since the current remains on the magnet II6, for. a yard or two after the lease string has been released, it is seen that if the machine is stopped within this length of warp that the magnet will continue to be energized and therefore would suffer damage as a result of being subjected to current for too long a period.

Figures 14 to 18 inclusive show a slightly modified form of the lease forming apparatus having an improved means for inserting the lease threads in the sheds of the moving warp. In the previous form of the invention the bar I01 was employed for drawing the ends of thelease cent the comb 43.

thread through the sheds. line to thefact that this bar has to be manually lifted andinserted through the warp, very often the w warp ends become entangled with the bar. The present modification provides positive means for directing the thread through the warp sheds so as to insure that entanglement with the warp ends will not occur.

In order to provide this positive means for guiding the lease threads through the sheds, a suitable pipe I40 has been mounted in brackets MI and I42, on one side of the apparatus 24. This pipe has a'rod' I43 slidably mounted therein, said rod having a pin I44 extending therefrom which penetrates a slot I45 in pipe I40. The right hand end of the rod I43 has a handle I46 secured thereon which is used for sliding the rod to and fro when it is necessary to insert the end of lease threads 32. The left hand end ofthis same rod extends upwardly and then again horizontally in parallel relationship to the lower portion thereof. The end of the rod I43 is flattened as at I48 (see Figure 18), so that this portion can easily penetrate between the members 98 and I 0| which serve to clamp the ends of the lease threads. Portion I 48 is forked as at I49 to allow the end of the lease thread 32 to be inserted therein. After inserting the lease thread in fork I49 in the manner shown in Figures 14, 15 and 18, it is only necessary to draw the handle I 46 towards the right thereby causing the end of the lease thread to be threaded between the warp sheds WI and W2 and adja- When the end has been threaded as shown in Figure 18, the operator grasps the end of the lease thread 32 and at the same-time, the handle I46 is used to push the rod reversely out of the shed to the position shown in Figure 15, leaving the end of the lease thread clamped between members 98 and IOI.

Another apparatus for inserting the other end of the lease thread is shown in Figure 16, which is used on the opposite side of the machine from the location the apparatus just described. This comprises a slotted pipe I55, having a slot I56 therein, which slot is penetrated by a projection I51 on U-shaped rod I58. Pipe I56 is mounted in brackets I59 and I60 which, in turn, are secured to the member 24.- The upper end of the U-shaped rod I58 has a flattened portion I48 identical to the flattened portion I48 previously described on rod I43 and a forked end portion I49 is provided which is identical to the forked portion on the previously described lease inserting means. A handle I62 is secured on the left-hand endof the rod I51 in Figure 16 and this handle is employed for drawing the U- shaped rod to the left after the end of the lease thread 32 has been threaded into the forked end. The operation of rods I43 and I58 are identical except they are used in connection with different warp sheds.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being set forth in the appended claims.

I claim:

1. In apparatus for placing lease threads in a moving warp, a plate disposed transversely of the warp, a pair of vertically movable combs slidably penetrating holes in'the plate and normally projecting a substantial distance above the plate and forming dents through which the warp threads pass, a vertically movable shed forming device through which the warp threads pass, means for inserting a lease thread through a shed in advance of each comb, a clamp disposed on each end of the plate for clamping the lease threads, means for simultaneously lowering the combs so that their upper ends will be disposed below the upper surface of the plate and for opening said clamps to allow the lease thread to be carried along by the moving warp.

2. Means for placing lease threads in a moving warp comprising means for forming a pair of spaced sheds in the warp while it is moving, means for inserting the two ends of a lease thread through the sheds, clamping means adja cent each edge of the warp for securing the lease threads against movement on account of contact with the moving warp, a pair of spaced combs penetrating the moving warp for preventing the lease threads from being carried along by the moving warp, there being a comb for. each lease thread, means for simultaneously releasing the clamping means and withdrawing said combs at predetermined intervals to allow the lease threads to be carried along by the moving warp.

3. Mechanism for taking a lease in a moving warp comprising a plurality of transversely disposed parallel spaced combs adapted to penetrate the warp, means for forming a plurality of warp sheds one at a time, means for inserting a lease thread in each of said sheds alongside each of said combs, a clamp at each end of the -n combs for clamping the lease threads, and means for simultaneously withdrawing said combs from the warp and opening said clamps to allow the lease thread to be carried along with said warp.

4. Apparatus for forming a lease in a moving warp, comprising means at one edge of the work for clamping a thread intermediate its ends along one edge of the warp, means for successively forming sheds in the warp, a pair of spaced transversely disposed combs through which the warp passes, means for inserting each end of the thread in a shed in front of the combs, means at the other edge of the warp for clamping the inserted ends of the lease thread in stationary position, and means for simultaneously releasing both of said clamping means and. for lowering said combs out of contact with the work to allow the thread to be carried along with the warp.

JAMES W. sHERRILL.

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