Патент USA US2382795код для вставки
Aug. 14, 1945. J. J. KAUFMANN Loom HARNESS 2,382,795 , Filed Jan. 21, 1944 2 Sheets-Sheet 1 Aug. 14, 1945. J. J. KAUFMANN 2,382,795 LOOM HARNESS Filed Jan. 21, 1944 2 Sheets-Sheet 2 0 V , 7 E ,m w g m a a r/ 2mm w \PumW ?u ‘ Z ITI»v flwerdor i I ?lial-my ‘2,382,795 Patented Aug. 14, 1945 UNITED STATES PATENT OFFICE LOOM HARNESS John Jacob Kaufmann, Elkins Park, Pa., assignor to Steel Heddle Manufacturing Company, Philadelphia, Pa., a corporation of Pennsyl Vania Application January 21, 1944, Serial No. 519,102 5 Claims. (Cl. 139-96) with the accompanying drawings, forming part This invention relates to the loom harness, and it relates more particularly to the construction and arrangement of the heddles used in such harness for the purpose of separating the warp threads, to form successive sheds through which the shuttle is passed to eifect the weaving opera tion. hereof, in which: ~ Fig. l is a front elevation of a group of heddles embodying the main features of the present in vention, portions of the heddle rods on which they are mounted also being shown; Fig. 2 is a side elevation thereof, the‘ heddle ' rods being shown in section; The invention relates more ‘particularly to that type of heddles for loom harness which are made ' 3 is a view similar to Fig. '2, but illustrat from thin flat metal strips, and which are now 10 ing a modi?ed form of heddle; Figs. 4 and 5 are views similar to Figs. 1 and 2, almost universally used for weaving textile fab respectively, illustrating another modi?ed form; rics. Figs. 6 and 7 are views similar toFigs. 1 and 2, respectively, illustrating another modi?ed form; is to provide heddles made of thin flat strips Figs. 8 and 9 are views similar to Figs. 1 and 2, of metal,‘ such as steel, of such ‘construction and 15 respectively, illustrating another‘modi?ed form; arrangement that the same will have a certain and desired degree of resiliency in a vertical or‘lon Figs. 10 and 11 are views similar to Figs. 1 and gitudinal direction, whereby there will [be an eas 2, respectively, illustrating another modi?ed form. ing of the shock when reversals of movement of Referring now more particularly to Figs. 1 and the harness frames takes place during the shed 20 . The principal object of the present invention 2 of the drawings, the heddles 20 there shown are in the main of a common‘and well known A further object of the invention is to provide type, commonly used in the weaving of textile heddles of the character aforesaid in which the fabrics, the same preferably being made of thin heddles will be flexible longitudinally whereby there will be less tendency to break such of the 25 ?at strips of steel wire each provided at its re spective central portion with the usual warp‘ con warp threads as are tighter than the main body trolling eye 2|. At each end of each heddle of the warp.' 20 there is also provided a mortise 22 for mount , It is understood that hereto-fore attempts have ing the heddles on the heddle rods 23 which are been made in various ways to provide heddles hav -' ing a certain amount of ?exibility, but none of 30 suitably supported in the heddle frames (not shown). The method of formation of the warp the structures or devices for this purpose hereto ey-es 2| and mortises 22 is preferably that which fore suggested have proved to be practical, and is Well known and commonly practiced in the in particularly the same are not adaptable for use dustry. in connection with the high speed looms at pres In the form of the invention shown in Figs. 1 35 ent in common use. and 2 of the drawings there is provided, adjacent With the foregoing objects in view, the inven the upper heddle supporting rod 23, on each rtion contemplates the provision of heddles made heddle 20, a portion 24, bent in reverse curvature of thin flat met-a1, provided at their central por in a form or shape somewhat similar to an elon tions ‘with the usual warp controlling eyes, at their ends with mortises for mounting the same 40 gated. 8, parts of which are de?nitely disposed outside the plane of the main or body portion of on the heddle rods of the frames, and provided the heddle 20. At the place where the ‘bent out with means above or below the shed lines for im ding operations. portion 24 is provided, the heddle 20 may be left [the full width of the strip as shown in Fig. 3, but preferably the same is cut away at the sides, parting ?exibility longitudinally to the individual heddles, said means comprising the bending of a portion of the metal out of the main plane of the [body portion of the heddle, reducing the vcross’ sectional area. of the bent out portions, and pro viding the heddles, if desired, with spacing de vices either for use in connection with draw ing-in machines or to insure freedom of move as at 25, thereby to provide a reduced area of cross-section in the bent portion, and thus pro viding greater ?exibility when strain is imparted to the heddle in a longitudinal direction. ‘ 50 - In the form of the invention shown in Figs. 4 ment of the warp when the shedding takes place. The nature and characteristic features of the invention will be more readily understood from _ the following description taken in connection 56 and 5 of the drawings each of the heddles 20 is provided with bent out portions 24 at both the top and bottom, in each instance, however, being lo cated at a point where the same is disposed be yond the plane of the sheet of warp when the 2' .. 2,382,795 . shed is formed. Also in this form the reduction in the cross-sectional area of the bent out por tions 24 is effected by slotting the strip at this point as at 26. In the form of the invention shown in Figs. 6 and 7 of the drawings the bent out portion 24a is in the shape of a ?attened V. Hereagain, how ever, the reduction in the cross-sectional area is the plane of the main body portion of the heddle to provide longitudinal ?exibility, said bent out portions being disposed between said straight por tions and the end mortisesand being cut away to provide a reduced cross-section of said bent out portions. 2. In a loom harness,‘ a plurality of heddles for controlling the warp ends, rods i'or ‘supporting obtained by slotting the strip as at 26 at the point said heddles, each of said heddles being made of where the bent out portion 24a is provided. 1 310.. ae'thin ?at metal strip having a central warp eye In Figs. 8 and 9 of the drawings there is shown ' vand having mortises at each end for mounting another form of the invention somewhat similar said’ heddles on said rods, each of said heddles to that shown in Figs. 6 and '7~.-' In this ‘case, -how- - ‘ also having a straight portion extending above ever, the bent out portions ?aare provided at ‘ 7 and below the central warp eye to a point beyond both the top and bottom of the'hed'dIe‘s'ZO', ‘in each instance, however, being beyond the plane the shed line and having portions bent out of the plane of the main'body portion of the heddle to . provide longitudinal ?exibility, said bent out por of the sheet of warp when the shed is formed- , , . In Figs. 10 and 11 of the drawings there is tions being disposed between said straight portions shown still another modi?ed form of theinven ' and the end mortises, and certain of the heddles tion in which the heddle 204 is bent at the desired locatiornas at 241), vout‘ of the plane of the’ main having spacing projections adjacent said bent out body portionv of theheddle 20,‘ ‘continuing‘in a straight inclined 'dire‘ction'for'the desired [dis tance, and then being bent back to cause the end portions to be‘ disposed parallel ‘.to' that? of the '3. In a loom harness, a plurality of heddles for portions. and the bends arejprovided preferably at the' top , ' ' ‘If desired,‘ anyof'the various forms'mayv be which may'be‘formed, for example, asv described and shown in my‘ previous Letters ‘Patent No. 1,970,175,‘ which will serve not only to‘ assist in the manipulation of the heddle when the entering ’ ’ " " ’ ' ' ‘ and below the central warp eye to a point beyond ' the shed line and‘ having portions bent‘ out of the to provide a reduced’ cross-section of said bent out portions,‘ and certain of the heddles having spac ing projections adjacent said bent out portions. is done by means of a warp drawing-in machine, but will alsoinsure greater freedom of movement eration ofthe loom}. , plane of the main body portion of the heddle to provide longitudinal ?exibility, said bent out por tions being‘disposed between, said straight por tions and the end mortises and being cut away provided‘ with suitable spacing projections , 21 of the warp as the she'dding'takesplace in the op , a thin ?at metal strip having a central. warp eye the bent portion byisibttingthe stripes- at 26,‘ ‘ , ‘ and having mortises at each end for mounting said heddles on said rods, each of said heddles also having a‘ straight portion extending above is provided a reduction'jn‘ cross-sectional area ‘at ' ' controlling the Warp ends, rods‘ for supporting saidv heddles, each of said heddles being made of plane of the main body‘pofrtion. ' Here again there and bottom of eachlie'ddle. ‘ ‘ 4. In a loom harness, a plurality of heddles for J controlling the warp ends, rods for supporting it said heddles, each of‘said heddles being made of It will of course. beap'parent that the bent out . portion of vthe heddles in a particular frame will a thin ?at metalstrip having a central warp eye be disposedv at the same‘ longitudinal locations, said heddles on saidrods, each of said heddles also having a straight portion extending above and below the central warp,v eye to. a point beyond the shed line and having portions bent out of the plane ofv themain body portion of the heddle so that saidbent'out portions will readily nest with respect to each other. ' ., > ‘By ‘the construction and" arrangement inac cordance with the present inventibnthere ispro vided an improved type of, heddle which. will not and having mortises at each: end for mounting to provide longitudinal ?exibility, said bent out only serve to relieve the strain when the ‘shed is portions being disposed‘ ‘between said straight portions and the-end mortises and being ‘slotted to provide a reduced’ cross-section of said bent formed, but will! also operate effectively- to relieve the shocks caused, by. the inertia of the heddle masses when the reversal or movement takes place as'the heddle frames are raised and lowered -in;the, operation. of theloom. Heddles of this type ‘will ' also serve to relieve individually vthewtension of ' out portions. unduly tight Warp ends, andthus minimize break age of the same and the. consequent stoppages of said heddles, each of said heddles being made of a . p I i 5. In a loom harness, a plurality of heddles for controlling the warp. ends, rods 'for supporting thin ?at‘ metal strip having a ‘central warp’Teye and having'm'ortises at each end. for mounting said heddleson said rods, each of ‘said heddles the loom forthe purpose o'ftying up broken ends. 1. In a loom harness, a plurality of heddles for 60 also having, a'st‘raight portion ‘extending above and below the central warp eye and‘ having por controllingv the warp ends, rods for supporting said heddles, each of said heddlesbeingtmadeof tions bent out of the-‘plane, of the main body por tion of the heddle to provide longitudinal ?exi a thin ?at metal strip having a central warp eye and having mortises at eachv end for mounting said heddleson'said rods, each of said heddles also having a, straight portion- extending above and below the central warp eye toa point beyond the shed line, and having portions bentv out of bility, said bent out portions: being disposed be 65 tween said straight portions and the end mortises and being cut away to‘provide a reduced cross sectionofsaid bent out portions. ‘JOHN JACOB KAUFMANN.