US2151475A

US2151475A - Apparatus for warp leasing

Info

Publication number: US2151475A
Application number: US226215A
Authority: US
Inventors: Frank H Kaufmann
Original assignee: Steel Heddle Manufacturing Co
Current assignee: Steel Heddle Manufacturing Co
Priority date: 1938-08-23
Filing date: 1938-08-23
Publication date: 1939-03-21
Anticipated expiration: 1956-03-21

Description

March' 21, 1939. F, H KAUF-MANN 2,151,475

APPARATUS FOR WARP LEASING t Filed Aug. 23, 1938 j @da @M Patented Mar. 21, 1939 UNITED STATES kPAT-ENT OFFICE APPARATUS FOR WARP LEASING vania Application August 23,

12 Claims.

This invention relates to apparatus for warp leasing, and it has particular relation to a novel form of leasing comb or reed for use in separating the warp threads to permit the insertion of the leasing cords or rods which are used for maintaining an orderly arrangement of the warp threads, usually at one or both ends of the Warp, when the same is wound on a beam. The formation of such leases. in a warp facilitates the drawing in or entering of the warpI through the harness or reed of the loom, and also serves 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 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 is then rewound in its entirety on the loom beam.

Heretoiore, it was customary, when a single end lease was to be formed in the Warp, to use an even number of section beams as, until a short time ago, no method had 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 sometimes necessitated the use of an extra section ybeam when an odd number would have had a sufficient capacity to take care of all of the warp ends required to be wound on the beam for use in the loom.

In the formation of a lease in the warp, it is important that the separation or the threads be accurately done and that there be no fouling of. any of the threads which would cause the same to be raised when they should be lowered in the lease, or Vice Versa. This is quite apt to occur, particularly when the count is high and the dents in the leasing comb or reed are relatively close tov each other.

The principal object of the present invention is to provide a novel form of leasing comb or reed, 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. It should be understood, however, that the apparatus'is equally adapted for use when the warp is preliminarily wound on an even number of section beams, and that it is also adapted for the formation of pin leases in the warp.

A further object of the invention isy to provide a novel form of leasing comb or reed by means of which the lease may be more readily and ex- 1938, Serial No. 226,215

(Cl. .2S- 54) peditiously taken than is possible with the hook reeds at present in common use.

A further object of the invention is to provide a novel form of leasing comb or reed in the use of which likelihood of misplaced threads in the lease will be reduced to a minimum.

A further object of the invention is to provide a novel form of leasing comb or reed which is so constructed and arranged that in the event any of the warp ends be: improperly caught when the lease is taken, the same will be readily apparent to the operator, so that correction can be made before the lease is completed.

A further object of the invention is to provide a leasing comb or reed with a novel form of device for maintaining the upper or free ends of the dents in proper spaced relationship.

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

Figure l is a front elevation, partly broken away, of a leasing comb embodying the main features: of the present invention;

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

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

Fig. 4 is a perspective View of the hook or warp engaging portion of one of the dents of the comb, the dents with this formation being disposed alternately therein;

Fig. 5 is; a. similar view of the adjacent portion of one of the other dents which are disposed between the hook or warp engaging dents; and

Fig. 6 is a perspective View of the upper end portion of. one of the dents, illustrating the preferred form of spacing means employed.

It should, of course, be understood that the drawing and the description herein contained are illustrative merely, and that various modifications and changes may be made in the structure disclosed without departing from the spirit of the invention.

Referring to the drawing, there is there shown a preferred form of construction of a leasing reed or comb I0 embodying the principal features of the present invention. Said device comprises a suitable frame I I having side struts I2, and having disposed between said struts I2 the vertically disposed dents I3 and I4, which are suitably spaced and rigidly secured at their lower ends in the frame II in the usual manner of construction of soldered reeds. The dents I3 and I4 are preferably made by punching and forming the same from thin fiat strips of metal.

Each alternate dent I3 is provided intermediate its extremities with two warp engaging hooks I5 and I6. The hooks I5 and I6 are formed by punching and pressing the metal, adjacent the respective edges of the dent, out of the main plane thereof, the hook I5 being pressed out from one face of the dent I3, and the hook I6 being pressed out from the other face thereof, so that the said hook I5 extends into the space on one side of said dent, and the other hook IS extends into the space on the other side thereof. Said hooks I5 and I6 preferably are open in the same direction, being shown in the drawing as being open toward the bottom, so that when a section or sheet of warp is raised, and at the same time the individual threads thereof are stressed sidewise across the faces of the dents on one side thereof, the threads in. alternate dent spaces will be engaged by said hooks, whereas the threads in the other alternate dent spaces will be permitted to pass upwardly therein.

It should here be noted that the hook I5, which projects on one face of each dent I3, is spaced longitudinally a sho-rt distance from the hook I5 which extends from the other face of said dent I3. By this: arrangement, the requisite strength at the places where the warp engaging hooks are located may be obtained, without making the dents of such a width that the weight of the reed would be inordinately increased. Furthermore, when the hooks I5 and I6 are so arranged, should any of the threads, which are in,- tended to be raised above said hooks, be im.- properly caught therein, this will be readily apparent to the operator, as will be hereinafter more fully set forth.

Each of the other alternate dents I4, which is not provided with warp engaging hooks, is however provided with indents or recesses I'I and I8 in the respective edges thereof. These indents or recesses I'I and I8 match, in longitudinal location, the positions of the hooks I5 and I6 in the dents I3. The provision of the indents or recesses I'I and I8, in the alternate dents I4, insures greater freedom in the manipulation of the warp and minimizes the likelihood of improper engagement of warp ends which are intended to be raised above the hook portions of the dents I3.

Each of the hooks I 5 and I6 extends out of the plane of the dent I3, in which it is formed, a distance approximately equal to one-half the width of the dent space. However, it sometimes occurs that the dents will become bent or distorted, either temporarily or permanently, which might result in a hook I5 or IS in one dent space extending through an indent or recess I'I or I8 in the adjacent dent I4, whereby it might improperly engage a warp end in an adjacent dent space, and to prevent this from happening, each of the dents I3 and I4 is provided, adjacent the hook portions of the dents I3 and the recessed portions of the dents I4, with embossed teats or projections I9 and 20 which extend part way into the dent spaces and serve to limit the amount of displacement of each dent with respect to the adjacent dents on either side thereof. The teats or projections I9 of the hook dents I3 are located at different longitudinal positions with respect to the teats or projections 20 of the recessed dents I4, thereby preventing nesting of said projections in the recesses which result from the embossing of the same from at metal.

As hereinbefore stated, the dents I3 and I4 are rigidly and iixedly secured at their lower ends in the frame of the structure, and there is provided, at the upper ends of the dents, improved means for maintaining said upper or free ends of the dents in proper spaced relationship. The preferred spacing means comprises the provision, in each alternate dent, of offsets on each side thereof, which are lformed by slitting the metal of the dent into at least three strips, the central strip 2| being then pressed in a V-shape, extending outwardly on one face of the dent, and the two side strips 22 being also pressed in a V shape, but extending outwardly on the other face thereof. v

Preferably two sets of spacing devices are provided, the same being longitudinally separated, thus serving to eliminate any tendency of the individual dents to rock about the points where the spacing devices are located. As shown in the drawing, each alternate dent is provided with two spacing devices, but, of course, it will be readily understood that the spacing devices at one longitudinal location may be provided in one set of alternate dents, and the spacing device at theother longitudinal location may be provided in the other set of alternate dents.

The device may be, if desired, and preferably is, provided with a cap member 30 to limit the upward movement in the dent spaces of the free warp ends, thereby preventing the same from becoming disarranged with respect to the comb. The cap member 30 preferably extends downwardly on each face of the comb a distance suflicient to prevent the free warp ends in the dent spaces from being raised to 'a point where the same might foul with the spacing devices.

If desired, the comb may be provided with blocks 3|, of solder or other metal, disposed in alternate dent spaces near the bottom of the comb in a manner similar to that of the ordinary hook reeds, whereby the lower portion of the comb may be utilized in the usual manner for the formation of pin leases.

On the other hand, if desired, the comb may be made double-acting with an additional set of warp engaging hooks, near the lower ends of the dents thereof, with their openings disposed upwardly in a manner similar to that shown and described in my previous application for Letters Patent filed February 28, 1936, Serial No. 82,163. Likewise, it will be understood that various other modifications and arrangements of the structure may be made in the utilization of the present invention.

The operation of the device and the manner of its use will be readily apparent to those skilled in the art, it being thought that it Will be merely suiiicient to point out that when the sheet of warp is raised by the manipulation of a section rod, or otherwise, the reed having been shifted sidewise with respect to the entire body of the warp, the threads thereof which are positioned in alternate dent spaces will be caught by one set of the hooks, and the warp threads which are disposed in the other alternate dent spaces will be permitted to pass freely upward in their dent spaces, thus permitting a single end lease to be taken where a plurality of sheets of warps are successively manipulated, and this without regard to whether the number of sections be odd or even.

It will be apparent to those skilled in the art that the warp may be manipulated in various Ways to form the particular type of lease defio sired. For instance, when a single end lease is wanted, the warp or the combv will necessarily be shifted sidewise, first in one direction and then in the other as the several sections of the warp are successively raised.

The apparatus may also be used for the formation of pin leases by always causing all of the Warp threads to bear against the same side of the faces of the dents as the sheets of Warp are elevated. However, it `may bel preferred to utilize the structure shown at the lower part of the comb'for the formation of pin leases, as the same will be more certain-in its action and involves less complication in the manipulation.

It will be apparent that in the use of the comb or reed, all of the warp ends which are intended to be engaged by the hooks will lie in a single sheet. If, however, one of the warp ends which is intended to pass upwardly in its dent space should inadvertently become caught in the hook extending into its dent space, this will be readily apparent to the operator by reason of said warp end being positioned in a different plane from that in which the other ends, which are properly engaged by the hooks, will be disposed. Hence, the operator may disengage the improperly caught warp end before the lease rod or cord is inserted, and thus improper displacement of any of the threads in the lease may be obviated.

I claim:

l. 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 extending respectively into the dent spaces on each side thereof, said hooks being longitudinally spaced from each other and being open in the same direction.

2. 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 extending respectively into the dent spaces on each side thereof, said hooks being longitudinally spaced from each other, and the other alternate dents each having recesses in their edges longitudinally located in register with the Warp engaging hooks on the first mentioned dents.

3. 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 extending respectively into the dent spaces on each side thereof, said hooks being longitudinally spaced from each other and being open in the same direction, and the other alternate dents each having recesses in their edges longitudinally located in register with the warp eng-aging hooks on the first mentioned dents.

4. A warp leasing device comprising a frame, a series of dents 4mounted 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 extending respectively into the d-ent spaces on each side thereof, said hooks being longitudinally spaced from each other and being open in the same direction, and the other alternate dents each having recesses in their edges longitudinally located in register with the Warp engaging hooks on the first mentioned dents, each of the dents being flxedly and permanently secured to the frame at one end thereof, means for spacing the other ends of the dents, and each of the dents having means for limiting deflection thereof with respect to an adjacent dent comprising a projection extending from the dent into the dent space on one side thereof.

5. 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, certain of said dents having warp engaging hooks extending into adjacent dent spaces, and the dents adjacent those dents which are provided with said hooks having recesses longitudinally located in register with said hooks, and means for limiting deflection of a dent intermediate its ends with respect to an adjacent dent comprising a proljection extending from the dent into the dent space on one side thereof.

6. 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, certain of said dents having warp engaging hooks extending into adjacent dent spaces, and the dents adjacent those dents which are provided with said hooks having recesses longitudinally located in r-egister with said hooks, each of the dents being fixedly and permanently secured to the frame at one end thereof, means for spacing the other ends of the dents, and means for limiting deiiection of a dent with respect to an adjacent dent comprising a projection extending from the dent into the dent space on one side thereof.

7. 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, certain of said dents having warp engaging hooks extending into adjacent dent spaces, and the dents adjacent those dents which are provided with said hooks having recesses longitudinally located in register with said hooks, each of the dents being xedly and permanently secured to the frame at one end thereof, means for spacing the other ends of the dents, and means for limiting deflection of a dent with respect to an adjacent dent comprising a projection extending from the dent into the dent space on one side thereof, said projections being located adjacent the warp engaging hooks.

8. In a warp comb or reed including a series of dents spaced from each other to provide dent spaces therebetween in which the warp is disposed, the means for spacing the ends of the dents, comprising the provision near said ends of two rows of spacing devices, each of said spacing devices consisting of a central strip offset from the main plane of the dent on one face thereof and two side strips offset from the main plane of the dent on the other face thereof, said spacing devices being provided in alternate dents only in each row.

9. A warp comb or reed 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 of the dents being xedly and permanently secured to the frame at one end thereof, and means for spacing the other ends of the dents comprising `the provision near the ends of said dents of two rows of spacing devices, each of said spacing devices consisting of a central strip offset from the main plane of th-e dent on one face thereof and two side strips oifset from the main plane of the dent on the other face thereof, said spacing devices having provided in alternate dents only in each row.

10. A warp comb or reed 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 of the dents being xedly and permanently secured to the frame at one end thereof, and means for spacing the other ends of the dents comprising the provision near the ends of said dents of two rows of spacing devices, each of said spacing devices consisting of a central strip offset from the main plane of the dent on one face thereof and two side strips offset from the main plane of th-e dent on the other face thereof, said spacing devices being provided in alternate dents only in each row.

11. 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, certain of said dents having warp engaging hooks extending into the adjacent dent spaces, and each of the dents being xedly and permanently secured to the frame at one end thereof, and means for spacing the other ends of the dents comprising the provision near the ends of said dents of two rows of spacing devices, each of said spacing devices consisting of a central strip offset from the main plane of the dent on one face thereof and two side strips offset from the main plane of the dent on the other face 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, certain of said dents having warp engaging hooks extending into the adjacent dent spaces, and each of the dents being fixedly and permanently secured to the frame at one end thereof, and means for spacing the other ends of the dents comprising the provision near the ends of said dents of two rows of spacing devices, each of said spacing devices consisting of a central strip offset from the main plane of the dent on one face thereof and two side strips offset from the main plane of the dent on the other face thereof, said spacing devices being provided in alternate dents Ionly in each row.

FRANK H. KAUFMANN.