US2147257A - Method of and apparatus for warp leasing - Google Patents

Description

Feb. 14, 1939. F. H KAUFMANN METHOD OF AND APPARATUS FOR WARP LEASING Filed May 28, 1956 5 Sheets-Sheet l Inventor qzy'ma mid fiorney.

Fran/132571" QM 1939. F. H. KAUFMANN METHOD OF AND APPARATUS FOR WARP LEASING Fran/PE 3 Sheets-Sheet? Filed May 28, 1936 Feb. 14, 1939. F. H. KAUFMANN METHOD OF AND APPARATUS FOR WARP LEASING 5 Sheets-$heet 3 Filed May 28, 1936 Frarzk'IK', we

Patented Feb. 14, 1939 UNITED STATES PATENT OFFECE Frank H. Kaufmann, Elkins Park, Pa., assignor Steel Heddle Manufacturing Company,

Philadelphia, Pa., a corporation of Pennsyl- Vania Application May 28, 1936, Serial No. 82,163

19 Claims.

This invention relates to a method of and apparatus for warp leasing, and it has particular relation to a novel manner of separating the warp threads for the insertion of the leasing cords or rods which are used for maintaining an orderly arrangementof the warp threads, usually at one or both ends of the winding of the same on the beam, to the end that the drawing-in or entering'of the warp through the harness and reed of the loom may be facilitated, and also to facilitate the twisting in of a new warp when the same runs out.

It is the usual practice in the winding of a beam for use in a loom to preliminarily wind the warp from the creels on a series of section beams, each containing a proportional number of the ends which are to be wound on the loom beam. Subsequently the warp from the section beams'is passed through the slasher and then rewound on the loom beam.

Heretofore it has been customary when a lease wasto be formed in the warp to use an even number-of section beams as no method has heretofore been available which would permit the formation of a single end lease in the warp if an odd number of-section beams were used. This requirement sometimes necessitated the use of an extra section beam when an odd number would have had sufficient capacity to take care of all the warp ends required to be wound on the beam for use in the loom.

The principal object of the present invention is to provide a method of and apparatus for forming a lease in the warp which-permits the formation of such a lease notwithstanding the warp ,.may be'preliminarily wound on an odd number of section beams, although the method and apparatus are equally adaptable for use 'inconn'ection with an even numberof section beams.

With the aforementioned object in view, the present invention contemplates the provision of a novel form of leasing comb or reed, and a novel manner of manipulating the warp with respect thereto, whereby a lease may be formed in the warp whether the same be fed from an odd or even number of section beams.

The nature and characteristic features of the present invention will be more readily understood from the following description taken in connection with the accompanying drawings forming part hereof, in which:

Figure 1 is a front elevation, partly broken away, of a leasing comb constituting the principal novel portion of a preferred form of apparatus for carrying out the present invention;

Fig. 2 is a transverse vertical section thereof taken on the line 2-2 of Fig. 1;

Fig. 3 is an elevational view of a fragmentary portion of a leasing reed involving a modified form of construction, also adaptable for carrying out the invention;

Fig. 4 is a transverse vertical section thereof taken on the line 4-4 of Fig. 3;

Fig. 5 is a longitudinal section illustrating, to.a certain extent diagrammatically, the first step in the formation of a lease in accordance with the present invention;

Fig. 6 is a similar view illustrating the second step in said method;

Fig. 7 is a similar view illustrating the third step in said method;

Fig. 8 is a similar View illustrating the fourth and final step in the formation of the lease;

Fig. 9 is an elevational viewof a fragmentary portion of a leasing reed embodying 'another modified form of construction, particularly adaptable for use in the same location and ma manner somewhat similar to that of the ordinary form of hook reed at present in common use; and

Fig. 10 is a transverse vertical section thereof taken on the line lit-Ill of Fig. 9.

Referring now more particularly to Figs. 1 and 2 of the drawings, there is there shown a form of construction of a leasing comb l4 embodying the principal features of the present invention and adaptable for use in connection with the method thereof. Said device comprises a suitable frame l5 having side struts l6. Disposed between the side struts IB are the dents l'l, suitably spaced and rigidly secured at their lower ends in the frame E5 in the usualmanner of construction of soldered reeds.

Each of the dents I? there shown comprises a thin flat strip of metal provided near its upper end with offsets l8 and 59, preferably two or more in number in each dent, as the provision of a plurality of said offsets in each dent will serve to prevent distortion of the individual dents.

Furthermore, the offsets of each dent are staggered with relation to the offsets of adjacent dents so that said offsets will in each instance bear against a portion of the adjacent dent which lies in the main plane thereof, and which is resilient to a sufficient extent to permit the warp to pass into the dent spaces during the initial entering of the warp.

In the form of leasing comb shown in Figs. 1 and 2 of the drawings, each alternate dent is provided in its upper portion with a pair of struck-up hook members and 2|, the opening of said hook members being disposed toward the central portion of the comb. The other alternate .dents are provided in their lower portions with similar struck-up hook members 22 and 23, also open toward the center of the comb. In each instance the hook members of each dent are disposed one on each side thereof extending into the dent spaces so as to selectively engage the warp when same is manipulated in the manner to be hereinafter set forth.

In order to prevent the warp from fouling with the spacing offsets when the said Warp is manipulated to form the lease, there may be provided a cap 34 removably mounted on the comb and having plate members and 36 extending down from the top respectively on the front and rear faces of the comb. The lower edge 31 of the plate 35 is so positioned, when the cap is in place, that the warp ends, when elevated as hereinafter described will be prevented from fouling on the spacing offsets l8 and H! of the dents. The cap 34 is made removable with respect to the frame so that the same may be detached when it is desired to enter the warp in the comb.

In Figs. 3 and 4 of the drawings there is illustrated a form of hook reed also embodying the structure of the invention, and adaptable for carrying out the method thereof. In this form of construction there are provided main dents I 7 which extend from top to bottom and are secured in the usual manner of securing the dents in soldered reeds.

There are also provided both at the top and the bottom a series of auxiliary dents 24 and 25 respectively which extend part way toward the center of the reed. Near the top of the structure there are inserted metallic blocks Zii, preferably of solder or the like, one of these blocks being inserted between each alternate dent and the auxiliary dents on each side thereof. Each of these blocks is located a short distance above the inner end of the auxiliary dent, thereby to provide a hook like structure 20 and Zi on each side of each alternate dent respectively near the top of the reed.

A similar arrangement is provided near the lower end of this reed, the metallic blocks 21, however, being inserted between the other alter nate dents and the auxiliary dents on each side thereof, the said blocks also being located a short distance below the free ends of the auxiliary dents, thereby to provide hook like structures 22 and 23 for the selective engagement of the Warp ends during the latter stages of the leasing operation.

In Figs. 5 to 8 inclusive, there is shown the manner of manipulation of the warp with respect to either the leasing comb or the reed hereinbefore described. The warp, after leaving the slasher, passes over a guide rod or roller G extends through the leasing comb I 4 by means of which the lease is formed, and then passes over another guide rod or roller G The usual series of separator rods s 8 and s are also provided, there being one of these for the warp coming from each section beam on which the warp is primarily wound from the creel, the warp from each section beam passing over its respective separator rod.

For the purpose of illustration, there are shown three separator rods as would be employed when the warp is primarily Wound on three section beams. However, in the practice of the present invention any number of section beams may be employed, whether the same be odd or even, so long as there is provided one separator rod for the warp from each section beam. The separator rods are supported in suitable racks or stands (not shown) between the guide rod G and the leasing comb 14. These racks or stands are arranged so that each separator rod occupies two different positions in the formation of the lease, the rods being moved successively from one position to the other as will be hereinafter more fully set forth.

The leasing comb I4 is so mounted that the same may be shifted sidewise with respect to the warp as is customary in the use of the common form of hook reed used for leasing and, if

desired, mechanism (not shown) of the same type as is used for shifting the common form of hook reed may be used for this purpose or the same may be shifted by hand.

However, in the preferred manner of carrying out the method of the present invention, the leasing comb M is also shifted to upper and lower positions respectively at different stages in the formation of the lease.

The first step in the formation of the lease is shown in Fig. 5 of the drawings. In this instance, the comb or reed is in its lower position and the separator rods s .9 and s are in their rearniost positions, that is, adjacent to the guide rod or roller G It will be noted that in this position the warp from all the section beams extends through the dent spaces of -the leasing comb I4 between the hooks in the upper portion thereof and the hooks in the lower portion thereof.

The comb is now shifted sidewise with respect to the warp, whereupon the separator rod 8 is moved from its rearward position as shown in Fig. 5 to the forward position as shown in Fig. 6. The warp which passes over the separator rod 3 will thus be raised. However, the ends in this section of the warp which are disposed in alternate dent spaces will be caught by the hooks 20 in the upper portion of the comb, whereas the ends in the other alternate dent spaces will be raised free of the hooks, thus causing a separation of the alternate ends of this section of the Warp.

The comb is then again shifted sidewise with respect to the warp but in the opposite direction after which the separator rod 8 is moved forward from its rearward position to raise the section of the warp controlled thereby. In this manner the section of the warp controlled by the separator rod 8 will also be separated, it being noted, however, that in this instance the ends which are disposed in the dent spaces in which they were previously permitted to pass freely above the hooks will now be caught in said hooks 2|, whereas in the dent spaces where the ends of the previous section were caught by the hooks 20, the ends will now be permitted to pass freely upward. The action is again repeated with respect to the warp ends controlled by the separator rod 3 also causing a separation of the alternate ends in that section.

Assuming that there are but three sections of the entire warp, the same will now be separated in each alternate dent space with two ends engaged by the hooks and one end elevated above the hooks, while in the other alternate dent spaces one end will be engaged by the hook and the other two ends raised above the hook. The warp being thus separated into two sheets as shown at the forward end of Fig. 6, the leasing cord or rod L? is inserted in the shed. like space thus. provided and the first part of the lease is formed.

The leasing comb l4 isnowraised to the position shown in 'Fig. 7 of the drawings, causing all of the warp to be free fromengagement by the hooks of the comb. A' reverse-actuation of the separator rods is now effected step by step. The leasing comb, however, being in the proper position so that when the separator rod 8 is returned from its forward to itsrearward position, the warp ends controlled thereby will be lowered.

However, theends disposed in alternate dent spaces will be engaged'by' the hooks 22 in the Likewise with the and the leasing comb in each instance being shifted sidewise to selectively engage or permit the warp ends to pass inxalternate dent spaces as may be required to form the lease.

When all of the separator rods are returned to their initial positions, the warp will again be separated by the leasing comb into two sheets as shown at the forward end of Fig. 8 and in the shed like space thus provided between the two sheets of warp the leasing cord or rod L is inserted to complete the formation of the lease. The leasing comb may .now be lowered to its initial position and the warp thereafter fed through the same free of engagement by the "hooks thereof,

the top and bottom portions of .the comb or reed,

or that the comb or reed be so positioned with respect to the slasher that the lease is formed after the warp has passed' through the slasher.

By way of example, there is shown in Figs. 9 and 10 of the drawings, a form of reed embodying certain features of the present invention. and adaptable for use in the same location as hook reeds of the common form are now used for forming the lease before the warp passes through the slasher. This reed is formed in a manner somewhat similar to that of the ordinary hook reeds. In this form of construction there are provided main dents I? which extend from top to bottom where they are secured in the usual manner of securing dents in soldered reeds. There arealso provided in this instance, at the top only, a series of auxiliary dents 24 which extend part way toward the center of the reed. In connection with these auxiliary dents there are also provided inserted metallic blocks 25 preferably of solder or the like, one of these blocks being inserted between each alternate dent and the auxiliary dents on each side thereof. Each of these blocks is located a short distance above the inner end of the auxiliary dent, thereby to provide hook like structures 26 and 25 respectively on each side of the alternate dent spaces near the top of the reed. Near the bottom of the structure there are also provided inserted metallic blocks 28 preferably made of solder or the like, one of these blocks being provided between each alternate pair of main dents, these blocks being similar to and used for the same purpose as such blocks are used in the common form of hook reed. As these blocks in the lower portion of the frame form no essential part. of the present invention, the same need not be further referred to.

A singleend lease may be formed; by use of the structure of the top portion iofthe reed shown in Figs. 9 and 10.:of the drawings in a manner 5 similar-to that bywhich the lease is formed in the use of either of the structures shown in Figs.

1 and 2 or 3 and 4 of. the drawings, the only difference being that, :after thefirst lease rod or cord isinserted .:as in'Fig. '6. of the drawings, the .10 separator rods are all-returned to their. initial positions before beginning theformation :of the second part of the lease. In the formation of the second part. of-the .singleiend-lease the reed is shifted sidewise with respect to the warp in direc- .215

.tions opposite to those used for the first part.

In the formation of a single end lease the reed is also used in the same horizontal position'during the formation of the lease, and is not raised and loweredas is done where the leasing :hooks arertZO provided in both the upper and lower portionsof the frame.

It should also be understood thatvarious otherchanges' and modifications may be made in the structure .of the reed ..or.c.omb without departing: .25 from the spirit of the present invention.

I claim:

1. The method of'forming a lease in .a warp made up of .a pluralityof sections which consists of disposing in each 'dent space of'a comb orreed one thread from'each section' of the warp, transposing the sections .of-ethe'warp from one position to another in succession,. hooking the threads in alternate'dent spaces as each section is transposed thereby. to separate the warp of each section into twoiparts, inserting a lease member in the separation, then :nnhooking the threads, thereafter again transposing said warp sections in succession, hooking the threads of each section in alternatefdent spaces as the :sameiao are thus transposed, thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

2. The method of forming a lease in a warp made up of a plurality of sections which consists.;.:;;, of disposing in each dent space of a comb or reed one thread from each section of the warp, transposing the sections of the warp from one position to another insuccession, hooking the threads in alternate dent spaces as each section 150 is transposed thereby to separate the warp of each section into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter returning said warp sections in succession andin reverse order to their orig-5.55

. inal positions, hooking the threads of each section in alternate dent spaces as the same are being returned to their initial positions thereby to again separate said warp into two parts, and then inserting another lease member in the second 60 separation.

3. The method of forming a lease in a warp made up of arplurality of sections which consists of disposing in each dent space of a. comb or reed one thread from each section of the warp, raising so the sections of the warp from one position to another in succession, hooking the threads in alternate dent spaces as each section is raised thereby to separate the warp of each section into two parts, inserting a lease member in the sep- To aratiornthen unhooking the threads, thereafter lowering said warp sections in succession and in reverse order, hooking the threads of each sec-- tion in alternate dent spaces as the same are lowered thereby to again separate.said warp into two parts, and then inserting another lease member in the second separation.

4. The method of forming a lease in a warp made up of a plurality of sections which consists of passing each section of the warp over a separator rod and disposing in each dent space of a comb or reed one thread from each section of the warp, manipulating said separator rods to transpose said sections of the warp from one position to another in succession, hooking the threads in alternate dent spaces as each section is transposed thereby to separate the warp of each section into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter manipulating the separator rods to return said warp sections in succession and in reverse order to their original positions, hooking the threads of each section in alternate dent spaces as the same are being returned to their initial positions thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

5. The method of forming a lease in a warp made up of a plurality of sections which consists of passing each section of the warp over a separator rod and disposing in each dent space of a comb or reed one thread from each section of the warp, manipulating said separator rods to raise said sections of the warp in succession, hooking the threads in alternate dent spaces as each section is raised thereby to separate the warp of each section into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter manipulating the separator rods to lower said warp sections in succession and in reverse order, hooking the threads of each section in alternate dent spaces as the same are being lowered thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

6. The method of forming a lease'in a warp which consists of transposing said warp in sections from one position to another in succession, hooking alternate threads in each section of said warp as the same are transposed thereby to separate said warp into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter again transposing said warp sections in succession, hooking alternate threads in each section of said warp as the same are thus transposed thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

'7. The method of forming a lease in a warp which consists of transposing said warp in sections from one position to another in succession, hooking alternate threads in each section of said warp as the same are transposed thereby to separate said warp into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter returning said warp sections in succession and in reverse order to their origi-- nal positions, hooking alternate threads in each section of said warp as the same are returned thereby to again separate said warp into two parts, and'then inserting another lease member in the second separation.

8. The method of forming a lease in a warp which consists of raising sections of the warp in succession, hooking alternate threads in each section of said warp as the same are raised thereby to separate said warp into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter lowering said warp sections in succession and in reverse order, hooking alternate threads in each section of said warp as the same are lowered thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

9. The method of forming a lease in a warp which consists of passing said warp in sections over separator rods, manipulating said separator rods to transpose said warp sections in succession from one position to another, hooking alternate threads in each section of said warp as the same are transposed thereby to separate said warp into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter manipulating the separator rods to return said warp sections in succession and in reverse order to their original positions, hooking alternate threads in each section of said warp as the same are returned thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

10. The method of forming a lease in a Warp which consists of passing said warp in sections over separator rods, manipulating said separator rods to raise said warp sections in succession, hooking alternate threads in each section of said warp as the same are raised thereby to separate said warp into two parts, inserting a lease member in the separation, then unhooking the threads, thereafter manipulating the separator rods to lower said warp sections in succession and in reverse order, hooking alternate threads in each section of said warp as the same are lowered thereby to again separate said warp into two parts, and then inserting another lease member in the second separation.

11. A warp leasing device comprising a frame, a seres of dents mounted therein spaced from each other to provide dent spaces therebetween in which the warp is disposed, each alternate dent having at its upper portion a pair of warp engaging 'hooks extending respectively into the dent spaces on each side thereof, the other alternate dents each having at its lower portion a pair of warp engaging hooks extending respectively into the dent spaces on each side thereof.

12. A warp leasing device comprising a frame, a series of dents mounted therein spaced from each other to provide dent spaces therebetween in which the warp is disposed, each alternate dent having at its upper portion a pair of warp engaging hooks extending respectively into the dent spaces on each side thereof, the other alternate dents each having at its lower portion a pair of warp engaging hooks extending respectively into the dent spaces on each side thereof, I

the hooks of each set of dents being open in directions toward the hooks of the other set.

13. A warp leasing device comprising a frame, a series of dents mounted therein spaced from each other to provide dent spaces therebetween in which the warp is disposed, each alternate dent having at one portion thereof a pair of warp engaging hooks respectively extending into the dent spaces on each side thereof, and the other alternate dents each being without obstructions to the free passage of the warp at the portions thereof adjacent said hooks, and each having, spaced rom the aforesaid warp engaging hooks, another pair of warp engaging hooks extending respectively into the dent spaces on each side thereof.

14. A warp leasing device comprising a frame, a series of dents mounted therein spaced from each other to provide dent spacestherebetween in which the warp is disposed, each alternate dent having at one portion thereof a pair of warp engaging hooks respectively extending into the dent spaces on each side thereof, and the other alternate dents each being without obstructions to the free passage of the warp at the portions thereof adjacent said hooks, and each having, spaced from the aforesaid warp engaging hooks, another pair of warp engaging hooks extending respectively into the dent spaces on each side thereof, the hooks carried by one set of alternate dents opening in a direction opposite to that of the hooks carried by the other set of alternate dents.

15. A warp leasing device comprising a frame, a series of dents mounted therein spaced from each other to provide dent spaces therebetween in which the warp is disposed, each alternate dent having at its upper portion a pair of warp engaging hooks extending respectively into the dent spaces on each side thereof and the other alternate dents each being without obstructions to the free passage of the Warp at the portions thereof adjacent said hooks, and obstructions arranged intermediate said hooks and the lower ends of the dents, said obstructions being disposed in alternate dent spaces and extending between adjoining pairs of dents.

16. A warp leasing device comprising a frame, a series of dents mounted therein spaced from each other to provide dent spaces therebetween in which the warp is disposed, each alternate dent having at its upper portion a pair of warp engaging hooks extending respectively into the dent spaces on each side thereof and the other alternate dents each being without obstructions to the free passage of the warp at the portions thereof adjacent said hooks, and metallic blocks arranged intermediate said hooks and the lower ends of the dents, said blocks being disposed in alternate dent spaces.

17. A warp leasing device comprising a frame, a series of dents mounted therein spaced from each other to provide dent spaces therebetween in which the warp is disposed, each alternate dent having at its upper portion a pair of warp engaging hooks extending respectively into the dent spaces on each side thereof and the other alternate dents each being Without obstructions to the free passage of the warp at the portions thereof adjacent said hooks, and metallic blocks arranged intermediate said hooks and the lower ends of the dents, said blocks being disposed in alternate dent spaces for completely blocking the passage of warp thereby.

18. In the formation of a lease in a body of warp threads the steps which comprise transposing sections of said warp in succession from said body to a position spaced from the initial location of said body, hooking alternate threads in each section of said warp during the transposition of said section thereby to separate said warp into two parts, and inserting a lease member in the separation.

19. In the formation of a lease in a body of Warp threads the steps which comprise raising sections of said warp in succession from said body to a position spaced from the initial location of said body, hooking alternate threads in each section of said warp during the raising of the same thereby to separate said warp into two parts, and inserting a lease member in the separation.

FRANK H. KAUFMANN.

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