US2511822A - Loom harness - Google Patents

Description

LOOM HARNESS 2 Sheets-Sheet 1 Filed Aug. 21, 1945 M a a 1 w l! \N nu \\(L I. l| L a I II a m NM W L/ fi a HH fi/ mm q 1 a a w w June 13, 1950 J. J. KAUFMANN 2,511,822

- LOOM amass Filed Aug. 21, 1945 2 Sheets-Sheet 2 Ina-en Zor 9 0M JwoZZZzg'mwrzn,

Patented June 13, 1950 L001! HARNESS Application August :1, ms. serum; cums (on. m-ss) l s Chime.

The invention relates to loom harness. and it relates more particularly to that type of harnus whichisusedininstallationswherethewarp ends are entered or inserted through the heddle eyes by means of the automatic drawing-in machineswhicharenowinmoreorlesseommcn -usein'testllemills.

Asiswellknowminthoseinstallationsin which thewarp is entered or drawn in by means of automatic warp drawing-in machines, it is essential that the heddles have entire freedom of movement on the heddle rods from one end of the frame to the other. Hence, in such in-.

stailations. it is not possible to use heddle frames having means for supporting the heddle rods intermediate their ends of the type commonly referred to in the industry as "hooks," for the reason that it is not possible for the heddles to pass said "hooks." as is required in the automatic drawing-in operation. without first disensasins the heddle rods therefrom, and such action is impractical when the entering is done by means of the automatic machines.

The principal object of the present invention is to provide a novel and relatively inexpensive form of heddle frame, in which the means for supporting the heddle rods intermediate their endsissoconstructed and arrangedastooffer no obstruction to the free e of the heddies along the rods and past the supporting devices.

A further object of the invention is to rovide, in the heddle frames of loom harness. novel means for supporting the heddle rods intermediate their ends, so that deformations of the wooden rails. at the top and bottom of the heddle frames, due to working stresses or to climatic conditions, will not be transmitted to the heddle supporting rods and thereby deflect the same out of parallelism and cause the heddles to bind on said rods.

A further object of the invention is to provide, in heddle frames of the type in which an auxiliary bar forms part of the means for supporting the heddle rods intermediate their ends. novel means for securing said auxiliary bars in the heddle frames.

The nature and characteristic features of the 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 loom frame em y l the main features of the present invention, the same 2 adaptedforuseininstallationsinwhichanautomatic warp drawing-in machine is used for enterinsthewarpintheeyesoftheheddles;

Pig. 2 is an enlarged vertical section thereof. tahen'approximately on theline 2-2 of Fig. i;

Fig. 8 is a fragmentary perspective view illustrating parts of the means for supporting the heddle rods intermediate the ends thereof. and illustratinstheend portionsofscln ofthepreferred form of heddles employed in e frame;

Fig.4isaperspectivevtewoftheportlonof the structure shown in Fig. 3. but looking from the other side thereof: and

Pig. 5 is a fragmentary perspective view of one end of an auxiliary bar forming part of the structure for supporting the heddle rods inter mediate the ends thereof.

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

Referring to the drawings, the heddle frame proper may he of any preferred construction. For example. as shown. the same may comprise top and bottom rails ill. connected at their ends by end struts ii. The heddle supportin'gi rods II are preferably made of strips of flat bar metal. extendingfromendtoendoftheframaand each having its end portions extending through siotsintheendstruts ll'oftheframeinthe usual and customary manner.

Each of the projecting end portions of each heddle rod I! may also be provided with the usual aperture If. engaged by the hooked end ll of a spring retaining member I! mounted in one of the end struts I l of the frame.

It will, of course. be readily understood that various other forms of retaining means. at the ends of the heddle rods it may be used if desired. although it has been found that the spring members It of the character shown. are quite satlsfactory for the purpose.

Eachofthetopandbottomraiis lIlsprovided. along its inner edge portion. with a groove or recess II in which a bar-Ibis mounted. The bar 2| vis preferably made of flat bar metal slightly heavier than the heddle supporting rods II. Thebarllhaaateachenmataperedsiot or notch 22 (see Fig. 5). which eruraseain each instance. the inner end of a member If which meyheanextensionfromoneofthememhers of one of the end struts ii. However. the memheing shown provided with heddies which are llbersltmay.ifdesired.beseparatemembersseof inserted in its intheendstrut ii of theheddleframe,after the entire structure of the heddle rod, with parts carried thereby. is then slid lengthwise. the ends of the heddle rod being finally mounted inthe slots inthe endstruts ll. Whentheheddie rod is slid lengthwise the-proper distance, theapertures iiintheheddlerods Ilareenmed by the hooked ench ll of the spring retaining members II. I

The heddles 3i may be substantially similar to those shown in Figs. 2 and 3 of my previous Letters Patent No. 2,047,511, being made from thin flat strips of metal of a width corresponding to the widest portion of the heddle. However, the metal of each heddle II is preferably left the full width of the strip from end to end and the central portion of each heddle Si is provided with the usual punched and formed warp eye 32, the shanksofwhichmay,ifdesired,beformedin bowed conformation out of the plane of the beddle proper to facilitate the entrance of the needle of the drawing-in machine, as well also to afford greater freedom in the passage of the warp as the shedding takes place during the weaving operation.

It should, of course. be understood that the number of the devices required for supporting the heddle rods intermediate their ends will dependinalargemeasureuponthewidthofthe harness frame. A plurality of such supports will usually be provided, both at the top and bottom, although but one is shown in the drawing at the top and another at the bottom.

It will be noted that. by the foregoing arrangement, there is provided a novel form of heddle framewhichissocomtraetedandarrsngedthat the fromtheinneredgeoftheraiLandthemovisicn. at each location. of a bracket member carried by andiixedlysecuredtotherodandextendingfrom one side face thereof and said bracket member 2. In a loom harness including a heddle frame having top and bottom rails, heddle supporting rods comprising thin iiat metallic strips mounted insaidframe, andheddlesmountedonsaidrods and adapted to be freely movable on said rods without obstruction, the means for supporting said rods intermediate the ends thereof comprisinganauxiliarybaradiacenteachofsaidheddle rodsandhavingaportionextendinginwardly from the inner edge of the rail, and the provision, at each location. of a longitudinal slot in said inwardly extending portion of said auxiliary bar. a bracket member carried by and fixedly securedtotherodandextendingfromoneside face thereof, and a member carried by said bracket member detachabiy engasins the slot in said auxiliary bar, said auxiliary bar extending substantially the full length of the frame and being secured thereto only at points adiacent the ends thereof 8. In a loom harness including a heddle frame having top and bottom rails, heddle supporting rods comprising thin fiat metallic strips mounted in said frame, and heddles mounted on said rods and adapted to be freely movable on said rods without obstruction. the means for supporting said rods intermediate the ends thereof comprising an auxiliary bar adjacent each of said heddle rods and having a portion extending inwardly from the inner edge of the rail, and the provision, at each location, of a longitudinal slot in said inwardly extending portion of said auxiliary bar. a bracket member carried by and fixedly secured to the rod and extending from one side face thereof, and a member carried by said bracket member detachably engaging the slot in said auxiliary bar. said auxiliary bar extending substantially the full lensth of the frame and being secured thereto only at points adiaeent the 5 ends thereof and each of the heddles being made of a strip of material having a slot in each end portion for mounting the heddle on the supporting rods, the metal on one side of each of said slots, having an opening to permit the heddle to pass the bracket members.

4. In a loom harness including a heddle frame having top and bottom rails, heddle supporting rods comprising thin fiat metallic strips mounted in said frame, and heddles mounted on said rods and adapted to be freely movable on said rods without obstruction, the means for supporting said rods intermediate the ends thereof comprising an auxiliary bar adjacent each of said heddle rods and having a portion extending inwardly from the inner edge of the rail, and the provision, at each location, of a longitudinal slot in said inwardly extending portion of said auxiliary bar, a bracket member carried by and fixedly secured to the heddle rod and extending from one side face thereof, and a member carried by said bracket member detachably engaging the slot in said auxiliary bar, said auxiliary bars extending substantially the full length of the frame and also being positioned in recesses in the top and bottom rails and being secured to the top and bottom rails at their end portions only.

5. In a loom harness including a heddle frame having top and bottom rails, heddle supporting rods comprising thin fiat metallic strips mounted in said frame, and heddles mounted on said rods and adapted to be freely 'movable on said rods without obstruction, the means for supporting said rods intermediate the ends thereof comprising an auxiliary bar adjacent each of said heddle rods and having a portion extending inwardly from the inner edge of the rail, and the provision, at each location, of a, longitudinal slot in said inwardly extending portion of said auxiliary bar, a bracket member carried by and fixedly secured to the rod and extending from one side face thereof, and a member carried by said bracket member detachably engaging th slot in said auxiliary bar, said auxiliary bars also having portions positioned in recesses in the top and bottom rails and extending substantially the full length of the frame and also being secured to the top and bottom rails at their end portions ,only, and each of the heddles being made of a strip of metal having a. slot in each end portion for mounting the heddle on the supporting rods, the metal on one side of each of said slots having an opening to permit the heddle to pass the bracket members. I

6. In a loom harness including a heddle frame having top and bottom rails, heddle supporting rods comprising thin flat metallic strips mounted in said frame, and heddles mounted on said rods. the means for supporting said rods intermediate the ends thereof comprising an auxiliary bar adiacent each of said'heddle rods, and the provision, at each location, of means for detachably connecting said heddle rods to said auxiliary bars, said auxiliary bars being positioned in recesses in the top and bottom rails and having tapered notches at their end portions and members fixedly secured to the end portions of the rails and engaging said notches.

7. In a loom harness including a heddle frame having top and bottom rails, heddle supporting rods comprising thin fiat metallic strips mounted in said frame, and heddles mounted on said rods, the means for supporting said rods intermediate the ends thereof comprising an auxiliary bar ad- Jacent each of said heddle rods and having a portion extending inwardly from the inner edge of the rail, and the provision, at each location, of means for detachably connecting said heddle rods to said auxiliary bars comprising a, longitudinal slot in the inwardly extending portion of said auxiliary bar, a bracket member carried by and fixedly secured to the heddle rod, and a part carried by said bracket member engaging said slot, said auxiliary bar extending substantially the full length of the frame and being secured thereto only at points adjacent the ends thereof.

8. In a loom harness including a heddle frame having top and bottom rails, heddle suuporting rods comprising thin flat metallic strips mounted in said frame, and heddles mounted on said rods, the means for supportin said rods intermediate the ends thereof comprising an auxiliary bar adjacent each of said heddle rods and having a portion extending inwardly from the inner edge of the rail, and the provision, at each location, of means fixedly secured to the heddle rod for detachably connecting said heddle rod to the auxiliary bar, said auxiliary bars extending substantially the full length of the frame and being secured in the frame at their ends only and also having portions positioned in recesses in the top and bottom rails.

JOHN JACOB KAUFMANN.

REFERENCES CITED The following references are of record in the die of this patent:

UNITED STATES PATENTS Number Name Date 2,047,511 Kaufmann July 14, 1936 2,082,480 Carr June 1, 1937 2,209,857 Spencer July 30, 1940 2,216,882 Zucher Oct. 1, 1943 2,386,690 Kaufmann Oct. 9, 1945 FOREIGN PATENTS Number Country Date 474,861 .Great Britain Nov. 9, 1937 514,375 France Nov. 13, 1920

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