US2472772A - Loom harness - Google Patents

Description

June 7, 1949. I J. J. KAUFMANN 2,472,772

LOOM HARNESS Filed Sept. 27, 19.47 I 2 Shets-Sheet 1 FIG. I

,;?35 I as g INVEN TOR. JOHN JACOB KAUFMANN ATTORNEY.

June 7, 1949. J. .1. KAUFMANN 7 LOOM mmmss Filed Sept. 27, 1947 2 Sheets-Sheet 2 FIG.2 34 32 303i 33 N 1 45 "MINIMU (o @omof I 3.9

FIG. 4 35 35 l9 l2 2| (K h' n W 1' 38 38 25 26 la 25 18 U) l2 INVENTOR.

JOHN JACOB KAU FMANN ATTORNEY.

Patented June 7, 1949 UNITED STATES PATENT OFFICE LOOM HARNESS:

John J acob Kaufmann, Elkins Park, 2a., .assignor to' Steel Heddle Manufacturing: Company,- Philadelphia, Pa;, a corporation of Pennsylvania Application September 27, 19.47; Serial No. 776,431.

.6 Claims.

This inventionv relates to loom harness, and it'relates more particularly to that type of harness which, while of general application, is particularly useful in installations where the warp ends'are inserted through the heddles by means of the automatic warp drawing-in machines vided whereby two sets'of heddles are mountedin the same frame on separate pairs of supportin rods.

When it was attemptedto apply the principle shown in my previous Letters Patent No. 2,386,- 690 to the duplex arrangement, certain difiiculties arose which, however, have-been overcome by the arrangement shown and described herein.

The principal object of the presentinventionis to provid'eta heddle'frame of the'character aforesaid, in which" two sets of heddles are mounted on separate pairs of supporting rods, either pair of. which may be detached from the frame without disturbing the other, or, either pair of which may be shifted longitudinallygto an intermediate position for the purpose of removing heddles therefrom or for addingv heddles thereto, as is required in. changing over for the weaving of' fabrics. of different count.

Thenature and characteristic features of the presentinvention will be more readily understood illustrating the construction and arrangement of the means for supporting the heddle rods in termediate their ends;

Fig. 3'is a vertical section taken approximately on the line 3-3 of Fig. 2; and

Fig; 4 is a horizontal section taken. approxi-- mately '011 the; line ie-4: of Fig. 2.

It should of course. beunderstood that the des'cription and drawings: herein are illustrative 2; merely, and" that various modifications and changesmay be made inthe structure disclosed withoutdepartingjfrom the spirit of the invention.

Referring to the' drawings; the heddle frame proper may beof any preferred construction; Forexample; asshown, the samemaycomprise the usualtop and bottom rails l0 connected at their'ends by end struts I IL The heddle supportin'grods' I2 'are made of strips of fiat bar metal and extendfrom end to endof the frame. Each rod IZhas its end portions mounted in slots in the end struts I I of-the' frame in the" usual and customary manner. Each of the-projecting end portiens of "each-heddle rod 12 may also be provided with the usual aperture-l5, engaged by the hooked end" of a'spring'retaining member l6 mounted in member" is is interposed between the. heddle rod l2 and the plate member I! in a manner-similar tothat shown in my previous'LettersPatent hereinbefore referred to;

Itshould be" noted, however, that at each location theplate'member H" which is secured toone of the upper-heddle bars is spaced longitudinally from the plate member IT which is secured to the otherof the upper-bars, and the samearran-gement'is also used'in connection with the lower'heddle bars;

Each of the plate-members l1 extends toward the frame rail III- from which the heddle rod i2 is supported, and each-ofsaid'plate members is.

provided near the edge thereof with a longitudinal slot 20'. The slot Zll'of each plate member llis engaged by a," horizontal lug 2 I provided by bend-- ingj over the end portion of a" vertical extension 23 of abracket'z l;

Eachppl'ate' member Fl is also provided with a tonguelportion. 25'1which extends from one of the end margins of plate member I! and is bent around and engages one face of the vertical extension 23; of the bracket. It shouldbe noted however that the tongue portion 25"of the plate member. H. which supports one of the heddle rods from a particular bracket is in each instance connectedto the said plate member. at'the' endthereof. most remote: fromthe other adjacent plate. member.

It should also be noted that the tongue portions of the plate members I! supported by a particular bracket are disposed in the same plane. The foregoing arrangement is provided so that the respective heddle rods may be freed from their supporting bracket by sliding the same longitudinally, but in opposite directions.

It should also be noted that the bent around tongue portion 25 of the plate member I1 in each instance terminates at such point as to permit the bent around lug portion 2| of the vertical extension 23 of bracket 24 to be disengaged from the slot 20 of the plate member I! when the heddle supporting rod has its end portions disengaged from the retaining hooks and is slid endwise a sufiicient distance.

The bracket 24 has a body portion 26 extending parallel to the heddle bars I2, which is seated in a recess in the inner edge portion of the rail Ill. The horizontal body portion 26 of the bracket member 24 is fixedly secured to the inner end of a bolt member 21 which is provided at its outer end with a threaded portion 28. The threaded portion 28 of the bolt member 21 is engaged by a complementally threaded sleeve 29.

The sleeve 29 is provided with a flange 30 near its outer end and is also provided with a head portion 3!, having a transverse slot for adjustment of the bracket member by means of an ordinary screwdriver. The flange 30 of the sleeve 29 is confined between an inner plate member 32 and an outer plate member 33, which are secured in the rail ID by means of screws 34.

The sleeve 29, mounted on the threaded end of the bolt, permits an adjustment of the bolt 21 in the frame thereby to maintain the heddle supporting rods l2 in the frame at the proper distances apart, and in proper parallelism.

The heddles 35 may be substantially the same as those shown in my previous Letters Patent hereinbefore referred to, being preferably made from thin fiat strips of metal of a width corresponding to the widest portion of the heddle. The central portion 36 of each heddle 35 is preferably left the full width of the strip, as is also each end portion 31 thereof, but the parts 38 of each heddle, between the central portion 36 and the respective end portions 31, are preferably cut down to a considerably narrower width to reduce the weight of the installation, and to permit each heddle 35 to be twisted as required for the functioning of the warp drawing-in machine during the entering operation.

The central portion 36 of each heddle 35 is provided with the usual punched and formed warp eye 39, the shanks of which may, if desired, be formed in bowed conformation out of the main plane of the heddle proper.

Each of the end portions 31 of each of the heddles 35 shown is left the full Width of the strip from which the heddle is formed, is punched out to provide a slot 4| for mounting the heddles on the rods l2, and one side portion thereof is cut away as at 42, substantially midway the extension of the slot 4|, so that when the heddles are slid sidewise on the rods l2, during the enterin operation, they will pass freely without being obstructed by the spacing members I9 which are disposed between the heddle rods l2 and the plate members I! each forming part of the supporting means for the rods intermediate the ends.

It should be noted that the open sides of the end portions 31 of the heddles are disposed inwardly, as is shown in Fig. 3 of the drawings.

By the foregoing arrangement there is provided a duplex harness frame which is particularly adaptable for use in connection with installations in which warp drawing-in machines are used for the purpose of entering the warp.

It will be apparent that whenever it is desired to add heddles on a particular pair of supporting rods it is only necessary to release the proper hook members at the ends and then slide the heddle rods a short distance to free the ends thereof from the struts of the frame.

When, however, it is desired to entirely remove the heddle supporting rods on one face of the frame, the heddle rods will be slid to a greater extent whereby the plate members ll carried by the particular rods will be brought to such position as to cause the ends of the tongues 25 to clear the coacting portions 23 of the bracket member 24.

It will, of course, be apparent that the heddle supporting rods, On one face of the frame may have heddles added thereto or removed therefrom, or the rods and the heddles thereon may be entirely removed from the frame without disturbing the heddles carried by the heddle supporting rods on the other face of the frame.

I claim:

1. In loom harness including a heddle frame having top and bottom rails and a pair of heddle supporting rods at the top and at the bottom. adjacent said rails, said heddle supporting rods comprising thin flat metallic strips removably mounted in said frame, the means for supporting said rods intermediate the ends thereof comprising, at each location, a bracket mounted in the rail, a member secured to each rod, and said members being spaced longitudinally of said rods, said members detachably engaging said bracket, and means for normally maintaining said members in locked engagement with the bracket.

2. In loom harness including a heddle frame having top and bottom rails and a pair of heddle supporting rods at the top and at the bottom adjacent said rails, said heddle supporting rods comprising thin flat metallic strips mounted in said frame and being removable therefrom by sliding lengthwise, the means for supporting said rods intermediate the ends thereof comprising, at each location, a plate member secured to each rod, the plate member secured to one of the rods being spaced longitudinally of said rods with respect to the plate member secured to the other of said rods, a bracket mounted in the rail, said plate members being in locked engagement with the bracket member, and means for normally maintaining the locked engagement of said members.

3. In loom harness including a heddle frame having top and bottom rails and a pair of heddle supporting rods at the top and at the bottom adjacent said rails, said heddle supporting rods comprising thin fiat metallic strips mounted in said frame and being removable therefrom by sliding lengthwise, the means for supporting said rods intermediate the ends thereof comprising, at each location, a plate member secured to each rod, the plate member secured to one of the rods being spaced longitudinally of said rods with respect to the plate member secured to the other of said rods, a bracket member mounted in the rail, said plate members being in locked engagement with the bracket member, said plate member being separable from the bracket member upon sliding the rod lengthwise, and tongue members for norm-ally maintaining the locked engagement of said members.

4. In loom harness including a heddle frame having top and bottom rails and a pair of heddle supporting rods at the top and at the bottom adjacent said rails, said heddle supporting rods comprising thin fiat metallic strips mounted in said frame and being removable therefrom by sliding lengthwise, the means for supporting said rods intermediate the ends thereof comprising, at each location, a plate member secured to each rod, the plate member secured to one of the rods being spaced longitudinally of said rods with respect to the plate member secured to the other of said rods, a bracket member mounted in the rail, one of said members being slotted and the other of said members having a portion engaging the slot to secure said members in locked engagement with each other, said plate member being separable from the bracket member upon sliding the rod lengthwise, and means for normally maintaining the locked engagement of said members.

5. In loom harness including a heddle frame having top and bottom rails and a pair of heddle supporting rods at the top and at the bottom adjacent said rails, said heddle supporting rods comprising thin flat metallic strips mounted in said frame and being removable therefrom by sliding lengthwise, the means for supporting said rods intermediate the ends thereof comprising, at each location, a plate member secured to each rod, the plate member secured to one of the rods being spaced longitudinally of said rods with respect to the plate member secured to the other of said rods, a bracket member mounted in the rail, said plate members each being slotted and the bracket member having portions engaging the slots to secure said members in looked engagement with each other, said plate members being separable from the bracket member upon sliding the rods lengthwise, and means for normally maintaining the locked engagement of said members.

6. In loom harness including a heddle frame having top and bottom rails and a pair of heddle supporting rods at the top and at the bottom adjacent said rails, said heddle supporting rods comprising thin fiat metallic strips mounted in said frame and being removable therefrom by sliding lengthwise, the means for supporting said rods intermediate the ends thereof comprising, at each location, a plate member secured to each rod, the plate member secured to one of the rods being spaced longitudinally of said rods with respect to the plate member secured to the other of said rods, a bracket member mounted in the rail, said plate members each being slotted and the bracket member having portions engaging the slots to secure said members in locked engagement with each other, said plate members being separable from the bracket member upon sliding the rod lengthwise, and tongues for normally maintaining the locked engagement of said members.

JOHN JACOB KAUFMANN.

REFERENCES CITED The following referenlces are of record in the file of this patent:

UNITED STATES PATENTS

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