US2697454A - Loom harness - Google Patents

Description

Dec'Zl, 1954 v, Q HASSOLD 2,697,454

IN V EN TOR.

I2? 27: VICTOR o. HAssoLn ATTORNEY.

Dec. 2l, i954 v. c. HAssoLD LOOM HARNESS 2 Sheets-Sheet 2 Filed Dec. 23, 1949 FIG. 4

FIG.6

HVVENTUR. VICTOR C. HASSOLD ATTORNEY.

United States Patent O LooM HARNESS Victor C. Hassold, Philadelphia, Pa., assignor to Steel Heddle Manufacturing Company, Philadelphia, Pa., a corporation of Pennsylvania Application December 23, 1949, Serial No. 134,710

14 Claims. (Cl. 139-92) This invention relates to loom harness, and it relates more particularly to the construction and arrangement of the frames which are used for supporting the heddles which separate the warp ends in successive sheds for the passage of the shuttle therebetween to effect the weaving operation.

Heretofore, in most of the frames used in looms, for supporting the heddles, the top and bottom rails or shafts were made of wood connected at their ends by side struts usually made of thin at metal strips having their end portions bent over and secured to the end portions of the top and bottom rails or shafts.

The light metal alloys of aluminum and the like are now available for use in the formation of the top and bottom rails or shafts, the same being extruded through dies of the desired shape in cross-section, and such metallic rails oishafts are usually made hollow and have portions provided for the mounting of steel rods or bars which serve to support slide hooks, which in turn serve to support, intermediate their ends, the rods upon which the heddles are mounted.

Heretofore considerable difficulty has occurred in connection with the mounting of the rods or bars for the slide hooks on the inwardly extending portions of the top and bottom rails which are provided for that purpose.

When it was attempted to secure the rods or bars by means of ordinary rivets it was almost impossible, under ordinary shop conditions, to obtain exact register of the rivet holes in the rods or bars with those in the portion of the heddle frame rails to which they were attached.

When such frames were in use with the steel rods riveted in the ordinary manner to the inwardly extending portions of the top and bottom rails, trouble was encountered by reason of the difference in the rate of contraction and expansion of the dissimilar metals whenever temperature changes took place.

Also, in such construction, it is necessary to remove the slide hooks from their supporting rods oi' bars whenever the heddles, and the rods or bars upon which the heddles are mounted, are removed from the frame for rearrangement, and this must be taken into account and provision made for such removal and subsequent replacement.

The principal object of the present invention is to provide a novel and efficient form of heddle frame in which the top and bottom rails or shafts may be made of extruded metal shapes which are so constructed as to provide improved means for attaching thereto the rods or bars upon which are mounted the slide hooks which are employed for supporting intermediate their ends the rods or bars upon which the heddles are mounted.

A further object of the invention is to provide an improved form of slide hook so that the movement thereof on the supporting rods will at all times be free and smooth.

A further object of the invention is to provide a device, of the character aforesaid, with means for permitting the removal of the slide hooks from their supporting rods or bars whenever it becomes necessary to do so.

One of the principal advantages of the present invention is that it provides a heddle frame construction in which the heddles of the ordinary type, having mortises at the tops and bottoms thereof for mounting the same on the supporting rods, may be employed in connection with the drawing-in machines which are now in common use in many mills for the purpose of automatically eritering the warp ends in the harness.

The nature and characteristic features of the present 2,697,454 Patented Dec. 21, 1954 ICC 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 of a loom harness frame embodying the main features of the present invention;

Fig. 2 is a fragmentary perspective view of a portion of one of the rails illustrating certain of the parts for securing thereto one of the rods or bars employed for supporting the slide hooks in the frame.

Fig. 3 is a fragmentary elevational view, enlarged, of a portion of the structure shown in Fig. 1, illustrating more in detail the manner of and means for securing the rods or bars for mounting the slide hooks thereon, and also illustrating one of the slide hooks and showing the manner of supporting the rods upon which the heddles are mounted.

Fig. 4 is an enlarged transverse sectional view, taken on the line 4 4 of Fig. l;

Fig. 5 is a view, partly in section, and partly an underneath plan view of a portion of a top rail and certain of the parts carried thereby, the place at which the view is taken being indicated by the line 5-5 of 1; and

Fig. 6 is a fragmentary perspective view of a portion of the structure, illustrating still further certain of the details of construction and arrangement.

lt should, of course, be understood that the description and drawings herein 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 drawings, in the particular embodiment of the invention therein shown, the top and bottom rails 10 of the frame are connected at their ends by means of side struts 11 which may be of any preferred construction. For example, the same may be made of two strips secured to each other and having their respective ends bent at right angles, as at 12 and 13, and secured on the inner and outer edge portions of the ends of the top and bottom rails or shafts 10 by means of bolts 14.

The top and bottom rails or shafts 10 are made of extruded metal shapes, preferably hollow, whereby they are provided with relatively thin side walls 15, and edge portions 16 and 17, each somewhat thicker than the side walls 15.

The present invention is not particularly concerned with the shape of the outer marginal portion 16 of each of the top and bottom rails, but the same may each be provided with a V-shaped groove 18 extending from end to end of the rail and exteriorly disposed 'so that there is thus provided a drill point guide for drilling through the portion 16 at any required location in the length thereof, whenever it may be desired to mount a hook (not shown) for connecting the actuating cords or straps (not shown) which are used for raising and lowering the frames in the loom in the usual and customary manner.

Extending inwardly from the inner marginal portion 17 of each rail or shaft 10 is a longitudinal flange 19, one face of which is preferably ush with one of the side faces of the main or body portion of the rail 10, and on the other face of which there is provided a longitudinal rib 2i), spaced from the inner marginal edge of the angc 19 as shown in the drawings. f

A bar or rod 21 for supporting slide hooks 22 'thereon is secured to each rib 20, being fastened thereto at desired locations in the length of the frame by means of suitable fastening means, as hereinafter more particularly set forth. The bars or rods 21 are preferably made of material, such as steel, which is harder than the metal of the rails or shafts 10, and which are of a width somewhat greater than the width of the rib 20 carried by the ange 19 which extends inwardly from one side of the rail 10.

At suitable spaced locations the bars or rods 21 are provided with elongated openings 34 which are adapted to be engaged by complementally located proiections 35 which extend from the face ofthe rib 20 being formed thereon by displacing the metal of the ange and rib from the opposite face of the ange 19 by means of suitable punches and dies not shown.

The longitudinal extension of the projecting portion 35 1is preferably somewhat yless than that of the openings 34 in .the bar 21 for .the two-fold `purpose of permitting the bar 21 to be readily positioned notwithstanding any slight difference in register of the holes 34 1n the bar 21 with the projections 35 on the rib v2f) ofthe flange 19, and also to permit the differential expansion and contraction of ythe metals with respect to leach other by reason of temperature changes.

After the bar 21 is positioned von the rib 20, the portions of the projections which extend beyond the outer face of the bar 21 are peened over or otherwise upset at the .sides to hold the bar 21'securely in place.

Each of the bars 21 serves to support a series of hook members 22 slidably mounted thereon and retained by .means of lip portions 24, which are bent over and disposed within the spaces provided by the rib 20, which .spaces are located between the internal face of the flange 19 and the bar 21.

The slide hooks 22 are provided with inwardly extending hook portions 25 in which the heddle rods 26 are supported intermediate their ends.

The heddles 27 are slidably mounted on the rods 26 in the usual manner.

The main or body portion 4of each hook member 22 is preferably vbowed outwardly as at 28 so as to be spaced on the inner portion thereof from the outer face of the bar 21 and extending longitudinally for the purpose of clearing the heads of the projections which have been peened over to retain the bar 21 on the rib 20 of the flange 19.

The bars 21 upon which the slide hooks are mounted are preferably of a length somewhat less than that of the frame and the slide hooks are normally prevented from becoming detached at the ends thereof by means of spring members 30 secured to the rib 20 by means of one of the integral projections 31, similar to the projections hereinbefore described, which are used for the purpose of securing the bars 21 on the ribs 20.

Each of the spring members 30 has a tongue portion 32 extending toward the end of the bar 21 and having adjacent thereto a bent-up portion 33 constituting a depressible obstruction which normally prevents the slide hook 22 from leaving the end of the bar 21, but which may be depressed when suf'licient force is exerted on the slide hook 22 to cause the same to pass over the bent-up A portion 33 of the tongue 32 of the spring retaining rnember 30.

It will be noted that by the foregoing arrangement ordinary heddles of the type made of thin flat metal slotted and swaged at the several locations where the mortises are located for mounting the heddles on the supporting rods may be used in installations in which the warp is entered by automatic drawing-in machines. Of course, other types or styles of heddles may be employed, as desired, in frames made in accordance with this invention, for example, heddles of the type shown in the Kaufmann Patent No. 2,047,511 may be used and mounted directly on the bars 21 without employing the heddle rods 27, and the slide hooks 22 for supporting said heddle rods intermediate their ends.

I claim:

l. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, and bars secured to said ribs, the means for securing said bars to said ribs comprising the provision at spaced intervals in said bars of a series of elongated openings, and complementally located projections integral with said ribs and formed from the metal of the flanges and ribs, said projections extending through said openings in the bars and having portions extending over said bars to secure said bars to said ribs.

. 2. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, and bars secured to said ribs, the means for securing said bars to said ribs comprising the provision at spaced intervals in said bars of a series of elongated openings, and complementally located projections integral with said ribs and formed from the metal of the flanges and ribs, said projections extending through said openings and upset to secure said bars Ito lsaid ribs.

3. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, and bars secured to said ribs, the means for securing said bars to said ribs comprising the provision at spaced intervals in said bars of a series of elongated openings, and complementally located projections integral with said ribs and formed from the metal of the flanges land ribs, said projections extending through said openings and peened over on the exposed faces of said bars thereby to Vsecure the same to said ribs.

4. In a loom yharness frame -comprishing hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of cach flange, and bars secured to said ribs, the means for securing said -bars to said ribs comprising the provision at spaced intervals in said bars of a series of elongated openings, and complementally located projections integral with said ribs and formed from the metal of the flanges and ribs, lsaid projections extending through said openings and upset to secure said bars to said ribs, the openings in the bars being of greater longitudinal extent than that of the projections.

5. ln a loom harness frame comprising hollow metallic top and ybottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, and bars secured to said ribs, the means for securing said bars to said ribs comprising the provision at spaced intervals in said bars of a series -of elongated openings, and complementally located projections integral with said ribs and formed from the metal -of the flanges and ribs, said projections extending through said openings and peened over on the exposed faces of said bars thereby to secure the same to said ribs, the openings in the bars being of greater longitudinal extent than that of the projections.

6. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame and having one face substantially flush with one yof the side faces of the main or body portion of the rail, a rib formed on t-he other face of each flange, and bars secured to said ribs, the means for securing said bars to said ribs comprising the provision at spaced intervals inrf said bars of a series of elongated openings, and complementally located projections integral with said ribs and formed from the metal of the flanges and ribs, said projections extending through said openings and peened over on the exposed faces of said bars thereby to secure the same to said ribs, the openings in the bars being of greater longitudinal extent than that of the projections.

7. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, bars secured to said ribs, and slide hooks mounted on said bars, each of said slide hooks having an elongated body portion provided at each end with a pair of lips extending over and partly around the bar, said lips being disposed within the spaces between the bars and the flange like portions of the rail and the ends of each pair of said lips being spaced ya distance greater than the width of the ribs, the body portion of each slide hook having a hook portion extending therefrom, heddle rods supported intermediate their ends by sail slide hooks, and heddles mounted on said heddle ro s.

8. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, bars secured to said ribs, and slide hooks mounted on said bars for supporting the heddle rods intermediate their ends, each of said slide hooks having an elongated body portion provided at each end with a pair of lips extending over and partly around the bar; said lips being disposed within the spaces between the bars and the tlange like portions of the rail and the ends of each pair of said lips being spaced a distance greater than the width of the ribs, the body portion having a hook portion extending therefrom and engaging a heddle rod.

9. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a ange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, bars secured to said ribs, and slide hooks mounted on said bars for supporting the heddle rods intermediate their ends, each of said slide hooks having a body portion provided with a pair of lips extending over and partly around the bar, said lips being disposed within the spaces between the bars and the ange like portions of the rail and the ends of each pair of said lips being spaced a distance greater than the width of the ribs, the body portion having a hoak portion extending therefrom and engaging a heddle ro l0. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, bars secured to said ribs, and slide hooks mounted on said bars for supporting the heddle rods intermediate their ends, each of said slide hooks having a body portion provided with lips extending over and partly around the bar, the body portion having a hook portion extending therefrom for engaging the heddle rod, and means for normally re taining the slide hooks on their bars comprising depressible obstructions mounted on the flange like portions of the rails at the ends of the bars on which the slide hooks are mounted.

11. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a flange like portion extending inwardly toward the center of the frame, a rib formed on one face of each flange, bars secured to said ribs, and slide hooks mounted on said bars for supporting the heddle bars intermediate their ends, each of said slide hooks having a body portion provided with lips extending over and partly around the bar, the body portion having a hook portion extending therefrom for supporting the heddle rod, and means for normally retaining the slide hooks on their bars comprising spring members secured on the flange like portions of the rails at the ends of the bars on which the slide hooks are mounted, said spring members having depressible obstructions disposed in the path of the slide hooks.

12. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a ange like portion extending inwardly toward the center of the frame, bars secured thereto, and slide hooks mounted on said bars for supporting the heddle rods intermediate their ends, each of said slide hooks having a body portion provided with lips extending over and partly around the bar, the body portion having a hook portion extending therefrom for engaging the heddle rod, and means for normally retaining the slide hooks on their bars comprising depressible obstructions disposed in the path of the slide hooks.

13. in a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having a ange like portion extending inwardly toward the center of the frame, bars secured thereto, and slide hooks mounted on said bars for supporting the heddle rods intermediate their ends, each of said slide hooks having a body portion provided with lips extending over and partly around the bar, the body portion having a hook portion extending therefrom for engaging the heddle rod, and means for normally retaining the slide hooks on their bars comprising spring members secured on the flange like portions of the rails at the ends of the bars on which the slide hooks are mounted, said spring members having depressible obstructions disposed in the path of the slide hooks.

14. In a loom harness frame comprising hollow metallic top and bottom rails connected at their ends by side struts, each of said rails having means for supporting a bar, slide hooks mounted on said bars for supporting the heddle rods intermediate their ends, each of said slide hooks having a body portion provided with lips extending over and partly around the bar, the body portion having a hook portion extending therefrom for engaging the heddle rod and means for normally retaining the slide hooks on their bars comprising spring members secured to portions of the rails adjacent the ends of the bars on which the slide hooks are mounted, said spring members providing depressible obstructions disposed in the path of the slide hooks.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 1,686,073 Colman Oct. 2, 1928 2,070,164 Gloor et al. Feb. 9, 1937 2,206,844 Kaufmann July 2, 1940 2,216,682 Zurcher et al. Oct. 1, 1940 2,252,183 Kaufmann Aug. 12, 1941 2,287,739 Johnston June 23, 1942 2,625,958 Kaufmann Jan. 20, 1953 FOREIGN PATENTS Number Country Date 765,370 France May 19, 1934

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