US2315796A

US2315796A - Loom harness

Info

Publication number: US2315796A
Application number: US403302A
Authority: US
Inventors: Kaufmann John Jacob
Original assignee: Steel Heddle Manufacturing Co
Current assignee: Steel Heddle Manufacturing Co
Priority date: 1939-12-29
Filing date: 1941-07-21
Publication date: 1943-04-06
Anticipated expiration: 1960-04-06

Description

Patented Apr. 6, 1943 LOOM HARNESS John Jacob Kaufmann, Elkins Park, Pa.assigl1,0r to Steel Heddle Manufacturing Company,rPhil adelphia, Pa., a corporation -of Pennsylvania.

Original application December 29, 1939, ISerial No. 311,455. Divided and this application July 21, 1941, Serial No. 403,302

12 Claims.

This invention relates to loom harness and it relates more particularly to improved means for mounting, in a loom, groups of heddles for controlling the warp ends of the selvage, although it should of course be lunderstood that the harness may be used for other purposes, forexample, as Weaving stripes in a fabric in which the Warp ends thereof are manipulated independently of the ends controlled by the main harness frames.

Heretofore various types of devices have been suggested for controlling the Warp ends of a selvage, but in such devices it Was usual to use heddles of much greater length than the heddles in the main harness frames to prevent fouling of the selvage heddles and their supporting parts with the parts of the main harness frames. The heddles customarily used were of a length sufcient to extend from the top of an elevated harness frame to the bottom of an adjacent harness frame when the shed is formed in the loom.

However, in the use of selvage harness of the type in Which the heddles are of greater length, as aforesaid, diinculty arises when a set of harness is removed from the loom, either for reentering the Warp therein or for storage purposes, by reason of the selvage harness projecting a considerable distance above and below the main harness frames. It, therefore, was customary, when a set of harness was removed from the loom, to withdraw from their heddles the Warp ends controlled by the selvage harness, and to separate the selvage harness from the main frames. This involves complications when the harness is replaced in the loom, by reason of the necessity to rearrange the selvage harness with respect to the main frames, and also by reason of the necessity to draw in the selvage Warp separately after the harness is replaced in the loom.

The principal object of the present invention is to provide a selvage harness in which heddles of standard length are employed, which heddles are so mounted that there will be no interference with the free shedding of the main harness frames, and which selvage harness is vso constructed and arranged that the entire set of harness may be readily removed from the loom with the selvage harness left in the proper relationship to the other frames.

A further object of the invention is to provide selvage harness in which the short rods, upon which the heddles are mounted, will always be maintained in their proper horizontal positions, thereby to insure proper freedom of action, and

t'o eliminate crowding of th'eheddles Ytovvardxone end of the rod fas usually occurs when the rod iis tilted.

A further object of the invention is to provide .a selvage harness which maybe inexpensively constructed, but 'Which will be durable and eiiicieni-l in its operation. y

A further object of the invention is to provide improved means for connect-ing the selvage :harness to the actuating straps which will permit the selvage harness to be readily and expeditiously removed from the loom when desired.

'Other objects vand advantages "of the invention will be readily apparent to those familiar with this type of apparatus.

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

Figure 1 is a front elevational View of a selvage harness embodying the main features of 'the present invention;

Fig'. 2 is an enlargediff-ragmentary elevational View ofthe upper portion of vthe Astructure shown in Fig'. 1;

Fig. 3 is a side elevation, vpartly broken aW-ay, of the portion of the structure lshown izFig. l2; and

Fig. 4 is a perspective vieW illustrating in del tached relationship certain of the parts of the structure. Y

It will, of course, be understood that `the description and drawing 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 drawing, in the particular embodiment of the invention therein shown, the heddles i0 may be of any preferred type, but preferably are of the kind shown, being 'made of thin, 'flat lstrips of metal or Wire in which central Warp eyes Il of the kordinary type are provided. The heddles Tl 0 are mounted on the'heddle supporting bars I2 in the lordinary manner. The heddles llil are preferably of the standard length Ysuch. as are used vin the main harness frames, as it is not necessary, in the Vpresent selvage harness, to use extra long heddles, as has heretofore been customary.

The heddle supporting bars I2 Aconsist of relatively short members punche'd and formed from a metallic strip. The end portions of each heddle supporting b'ar 'i2 are .reduced in Width,

as at I3, thereby providing shoulders I4 for a purpose to be presently explained.

One heddle supporting bar I2 is provided at the top of the heddles III, and another at the bottom of the heddles I0, and connecting said bars I2 are side members I5 also made of thin, flat strips of metal or Wire, preferably somewhat stiffer and heavier, however, than the strips from which the heddles I are formed. In each end of each of the side members I5 there is provided a slot I6 complemental to a reduced end portion I3 of the bar I2 upon which it is mounted.

The arrangement is such that when the side members I5 are mounted with the slots I6 thereof engaging the reduced end portions I3 of the bars I2, the inner faces of said side members I5, adjacent the slots I6, Will abut against the shoulders I4 of said bars.

The side members I5 are initially maintained on the bars I2 by means of U-shaped members I'I, each comprising a horizontal portion I8 and vertical portions I9. The vertical portions I9 of each of said U-shaped members I`| are slotted, as at 20, complemental to the reduced end portions |3 of the bar I2, for mounting the same thereon. After the heddles I0 and the side members I5 are assembled on the bars I2, the side legs I9 of said U-shaped members II are sprung open to enable the same to be placed upon the bars I2.

It should be understood, however, that the U-shaped members I'| are not absolutely essential, and in some instances the same may be omitted; but said U-shaped members assist materially in the initial assembling of the selvage harness, serving to retain the heddles III and side strips I5 on the bars I2 until the other parts, to be hereinafter described, are assembled with respect to said bars.

Each of the bars I2 is provided with a bail member 2|, having a relatively Wide horizontal portion 22 and tWo vertical legs 23. This bail member 2| is preferably made from round wire having its ends flattened and spread to a width corresponding to the width of the side members l5, and in the flattened parts of the vertical extensions 23 of the bail members 2|, there are provided vslots 24 complemental to the end portions I3 of the bars I2, upon which the heddles |0` are mounted.

The bail members 2| are preferably made of relatively stiff or hardened material having suflicient resiliency and under such tension as to cause the' vertically extending legs 23 thereof to spring inwardly toward each other, thereby to hold the various parts assembled upon the bars I2.

The horizontally extending portion 22 of each of the bail members 2| is mounted in a connector 25, the main body portion 2B of Which is made from a thin, ilat and relatively Wide strip of metal, preferably spring steel, bent around at one end to form a hook 21 for the reception of the horizontally extending portion 22 of the bail member 2|, the hook 2`|- having a portion 2'Ia extending a short distance toward the other end. The connector 25 is provided With a closure plate 28, also made 'from a thin, at strip of metal, preferably spring steel, which preferably extends the full length of the connector 25, the end portion 253a extending across the opening of the hook portion 2'I, serving to prevent the selvage harness from fouling on the adjacent frames in the loom When the shedding occurs. The endportion 28a of the closure plate 28 also extends in engagement with the outer face of the hook 2'| around the hook 21 of the main portion to a medial point where it is provided with projecting tab 29 normally lying in an intermediate plane of the structure, the purpose of which is to facilitate the insertion of the bail member 2| in the hook portion 2'| of the connector 25 by movement of the resiliently impelled end portion 28a away from the opening of the hook portion 21.

The spring closure plate 28 is preferably secured to the main plate 26 of the connector 25 by means of tubular rivets 30, one of said rivets being located at the end of the connector 25 remote from the hook portion thereof, the arrangement being suoh that the opening of said tubular rivet `3|) may be utilized for the attachment of a hook member 3| which engages the actuating strap (not shown) of the harness. This hook member 3| may comprise a single piece of Wire Yhaving a loop end portion 32 which engages the opening provided by the tubular rivet 3|). The other end of the hook member 3| is shaped in the usual hook formation, as at 33, for engagement in one of the apertures usually provided in an actuating strap (not shown) of the harness.

It will be seen that by the foregoing arrangement, there is provided a no-vel form of harness for mounting small groups of heddles in the loom such, for example, as are employed for weaving the selvage in certain types of fabrics, or in some instances for Weaving stripes therein.

It Will be noted that in the present form of harness, heddles of standard lengths may be employed, nevertheless the arrangement is such that there will be no interference with the free shedding of the harness frames. Furthermore, when it is necessary to remove a set of harness from the loom, the selvage harness may be left in its proper relationship therein, by reason of the fact that the bail members 2| may be readily disconnected from the connectors 25, and when so disconnected, the overall height of the selvage heddle assembly will not exceed that of the main frames.

Hence, the entire set of harness may be readily removed from the loom Without requiring the Withdrawal of the Warp ends from the selvage harness, and considerable time and labor are avoided when the harness is replaced in the loom.

This application is a division of my prior application for Letters Patent for improvements in Loom harness, filed December 29, 1939, Serial No. 311,455.

I claim:

l. In a loom harness for supporting small groups of heddles, heddle supporting bars upon which said heddles are mounted, bail members each made of a single piece of relatively stiii material and each having a relatively Wide horizontal portion and elongated vertical leg portions the ends of which are in engagement With the end portions of the supporting bars, and thin ilat and Wide steel connectors each having a hook portion engaging the horizontal portion of a. bail member over the greater portion of its Width.

2. In a loom harness for supporting small groups of heddles, heddle supporting bars upon which said heddles are mounted, bail members each made of a single piece of relatively stiff material and each having a relatively wide horizontal portion and elongated vertical leg portions the ends of which are in engagement with the end portions of the supporting bars, thin ilat and Wide steel connectors each having a hook portion engaging the horizontal portion of a bail member over the greater portion of its Width, and closure means extending over the opening of the hook portion.

3. In a loom harness for supporting small groups of heddles, heddle supporting bars upon which said heddles are mounted, bail members each made of a single piece of relatively stiff material and each having a relatively Wide horizontal portion and elongated vertical leg portions the ends of which are in engagement with the end portions of the supporting bars, thin at and Wide steel connectors each having a hook portion detachably engaging the horizontal portion of a bail member over the greater portion of its width, and said connectors each having a closure Plate extending over the opening of the hook portion.

4. In a loom harness for supporting small groups of heddles, heddle supporting bars upon which said heddles are mounted, one piece bail members each having a horizontal portion and elongated vertical leg portions the ends 0f which are in engagement with the end portions of the supporting bars, thin nat and wide steel connectors each having a hook portion detachably engaging the horizontal portion of a bail member over the greater portion of its Width, said connector-s each having a closure plate extending over the opening o the hook portion and around said hoo-k portion to a medial plane and provided with a projecting tab at its free end.

5. In loom harness, a bail member made of a single piece of relatively sti round, wire and having a relatively Wide horizontal portion and harness engaging portions extending therefrom, and a thin flat and Wide steel connector having a hoo portion detachably engaging the horizontal portion of the bail member over the greater' portion of its Width, said hook portion having a vertically extending lip.

6. In loom harness, a bail member made of a single piece of relatively stiff round Wire and having a relatively wide horizontal portion and harness engaging portions extending therefrom, a thin iiat and Wide steel connector having a hook portion detachably engaging the horizontal portion of the bail member over the greater portion of its Width, said hook portion having a vertically extending lip and closure means extending over the opening of the hook portion.

'7. In loom harness, a bail member made of a single piece of relatively stii round wire and having a relatively Wide horizontal portion and harness engaging portions extending therefrom, a thin at and Wide steel connector having a hook portion detachably engaging the horizontal portion of the bail member over the greater portion of its Width, said hook portion having a vertically extending lip and said connector having a closure plate extending over the opening of the hook portion.

8. In loom harness, a one piece bail member having a horizontal portion and harness engaging portions extending therefrom, a thin flat and wide steel connector having a hook portion detachably engaging the horizontal portion of the bail member over the greater portion of its width, said connector having a closure plate extending over the opening of the hook portion and around said hook portion to a medial Vplane and pro-vided with a projecting tab at its free end.

9. In a harness connector for looms, harness engaging means comprising a single piece bail member made of relatively stii round Wire and having a relatively wide horizontal portion, a thin flat and wide steel connector having a hook portion detachably engaging said horizontal portion over the greater portion of its Width, said hook portion having a vertically extending lip and an externally disposed closure plate extending over the opening of the hook portion and resiliently impelled to a position for closing said opening.

l0. In a harness connector for looms, harness engaging means comprising a single piece bail member made of relatively stiff round Wire and having a relatively wide horizontal portion, a thin flat and wide steel connector having a, hook portion detachably .engaging said horizontal portion over the greater portion of its Width, said hook portion having a vertically extending lip and an externally disposed closure plate of substantially the same Width as the hook portion extending over the opening of the hook portion and resiliently impelled to a position for closing said opening.

l1. In a harness connector for looms, harness engaging means comprising a single piece bail member made of relatively stiff round Wire and having a horizontal portion, a thin flat and Wide steel connector having a hook portion at one end detachably engaging said horizontal portion over the greater portion of its Width, said hook portion having a vertically extending lip, an externally disposed closure plate extending over the opening of the hook portion and resiliently impelled to a position for closing said opening, and strap attaching means at the other end of said connector.

12. In a harness connector for looms, harness engaging means comprising a single piece bail member made of relatively stiff round Wire and having a horizontal portion, a connector of thin flat and wide strip steel and having one strip portion of hook formation at the end thereof detachably engaging said horizontal portion of the bail member over the greater portion of its Width, said hook portion including a lip portion extending vertically at the free end of the hook, and another strip portion of thin flat and Wide strip steel disposed along said rst strip portion, said other strip portion extending externally at one end thereof over the opening of the hook portion and resiliently impelled into engagement with said hook portion.

JOHN JACOB KAUFMANN.