US2840114A - Loom harness - Google Patents

Description

E. E. SIDES LOOM HARNESS Filed Sept. 1, 1955 {SI Lil) (I) 0) 15 A 165 2 14% ill June 24, 1958 VENTOR i Jz'des ATTORNEY U LOOM Everett E. Sids,'Greenv'ille, S:-C.', assignor to SteeFHeddle Manufacturing Company, Philadelphia, Pa., a corporation-of Pennsylvania Application September 1, .1955, Serial.-No. 532,009

4'ClaimS. (Cl. "139-'-'96)- This invention relates .to loomharness, and it relates more particularly .togthat .typeof loom harness inthe use of which the warp is enteredibymeans :ofautomatic drawing-in machines. 7

When automatic. drawingdn machines are used. for entering the warp, the heddles are commonly provided, adjacent the warp eyes, with keyhole shaped slots adapted to be engaged bythe selector. mechanism ;of the drawingin machine, which separates the heddles, successively whereby the same may each be'brought to the proper position for the passage of the entering needle of the drawing-in machine through-the v'varp eye of each heddle.

The keyhole slotsin the heddles are punchedwith the narrow portions alternately-disposed upwardly and downwardly in the central-portions o'fthe heddles adjacent the warp eyes, this being necessary by reasonof the peculiar action of the selector mechanism of the drawing-in machine.

However, it sometimes happens that two or more heddles with the narrow portions of their keyhole slots disposed in the same direction will be improperly placed, side by side, so that the action of the selector mechanism of the drawing-in machine is interfered with, and damage usually results to the mechanism, to the harness, and sometimes to the warp.

The principal object of the present invention is to pro vide a set of heddles of the character aforesaid with means for visually indicating when the heddles are improperly paired on their supporting rods, that is, whenever two or more heddles are disposed side by side with the narrow portions of their keyhole selector slots extending in the same direction, either upwardly or downwardly.

A further object of the invention is to provide means of the character and for the purpose aforesaid, which will be simple and inexpensive, in that no appreciable additional cost will be incurred in the production of the heddles provided with such means. a

The nature and characteristic features of the present 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 elevation of a loomharness frame of a conventional type in which heddles embodying the main features of the present invention may be mounted;

Fig. 2 is a fragmentary perspective view illustrating the upper portions of a series of heddles embodying the present invention, the same being shown mounted on a heddle rod;

Fig. 3 is an enlarged side elevation of one of the heddles shown in Fig. 2, the upper portion thereof having indicating means of the present invention; and

Fig. 4 is a View similar to Fig. 2, but showing a modified form of the indicator means for the heddles.

It should, of course, be understood that the description and drawing herein are illustrative merely, and that various modifications and changes may be made in the 2 devices shown and described without departingifromthe spirit of the invention.

Referring to the .drawing, in the particular embodimentof'the invention therein shown, ,the heddles of the.

present inventionare adapted to be used in conventional. heddle frames, of which .the form shown in Fig. 1, is a I typical example.

The heddles may be of the type shown in Fig s .2..and and3 of the .drawing'of the Kaufmann patent, No. 2,047,-

511, datedJuly 14, 1936, and in the Kaufmann patent,

No. 2,38'6,690, dated October 9, 1945. 7

Such heddles are used in conventional frames, such as are shown in Fig. 1 of the drawing and. whichcomprise topand bottom rails 10, connected by end struts; 11, and heddle supporting rods, llextend in the frame. from end to end thereof and are supported therein many.-

preferredmanner.

' The heddles 13 are mounted on the rods 12 in suchv manner 'as to befreely slidable thereon from end .to end of the frame, such complete freedomof movement being necessary by reason of the action of the drawing-in.

are circular and from which a narrower slot 16 and:

16 respectively'extends upwardly, and downwardly in each alternate heddle. The 'positioningof the narrow portions of the keyhole slots as aforesaid .is necessary.

for the proper functioning of the selector device (not shown.) .of the drawing-inma'chine, as iswell understood;

by those familiar with this art.

The heddles 13 are each provided, at each end, with V mortises each comprising a slot 17 through which the heddle rod 12 passes. On one side of each slot 17, substantially midway thereof, the metal is cut away at the side as at 18 so that when the heddles aremoved on the rods 12, during the. entering of the warp, they will pass freely without being obstructed by the devices used for supporting the heddle rods intermediate the ends thereof.

In the mounting of the heddles on the rods, it sometimes occurs that heddles are improperly disposed with keyhole slots of the same kind immediately adjacent each other and, when the selector needle of the drawing-in machine engages the keyhole slot of a heddle in which the narrow portion of the slot is in the wrong direction, the heddles not being disposed in the proper alternate sequence, the needle which enters the warp in the warp eye will be fouled, and damage of various kinds may 'thus be caused. V v

The purpose of the present invention is to provide simple and effective means whereby it will be readily apparent whenever the heddles are improperly mounted with two or more heddles in a sequence disposed in the frame with the narrow portions of their keyhole slots extending in the same direction. 7

In Figs. 2 and 3 of thedrawing there is shown an indicator of one form which consists in punching a seg ment of the material from a portion of one end of each alternate heddle, thus providing a distinctive recess 19 therein. This segment would be punched only at the ends of those heddles in which the narrow portions of the keyholeslots extend in the same direciton.

The same effect may be obtained by providing alternate heddles, in which the narrow portions of their keyhole slots extend in the same direction, with an extending part 20 atone end of each of said alternate heddles. The extensions 20 in each instance in the end portion of the heddles are provided so that end portions .of properly disposed alternate heddles will be differently shaped.

7 That is, all of the heddles in which the narrow portions Patented June. 24, .1958,

of the keyhole slot extendin one portions of a certain shape, and the other alternate heddles, in which the narrow portions of the keyhole slots extend in the other direction, will have their end,

portions of another and ditierentshape, i

It has been found that by thus making the heddlesiof for separating the heddles step by step, and in which loom harness the heddles are alternately of different forms in their proper disposition for the separation of the heddles by the separating means of the drawing-in machines, the

means for visually indicating improper pairing of the heddles whichcomprises having, other than 'the form differences which are provided for the separation of the heddles, a visible end portion of each of the heddles of one form of a ditferent shape from that of the corresponding end portion of each of the heddles of the other form. r q

2; In loom harness, in the/use of which the entering is done by automatic drawing-in machines having means for separating the heddles step by step, and in which loom harness the heddles, are alternately of different forms in their proper'disposition for the separation of the heddles by the separating means of thedrawing in machines, the means for visually indicating improper pairing of theheddles which comprises having an end portion of each of the heddles of one form of a different shapefrom that of the corresponding end portion of each of the heddles of the other form.

use, of which the entering direction will have end 3. In loom harness, in the use of which the entering is done by automatic drawing-in machines having means for separating the heddles step by step, and in which loom harness the alternate heddles are provided with means for the separation of the heddles by the separating means of the drawing-in machines, the means for visually indicating improper pairing of the heddles which comprises having anvend portion of each of the heddles of one form of a different shape/from that of the corresponding end portion, of each of the heddles of the other form'., l t 4. In loom harness, in the use of whichthe entering is done by automatic drawing-in machines having means for separating the heddles step by step, and in which loom harness the heddles are provided with keyhole shaped slots the narrow portions of which are disposed upwardly and downwardly in alternate heddles for the separation of the heddles by the separating means of the drawing-in machines, means for visually indicating improper pairing of the heddles which comprises having one end portion ofeach'of the heddles of one form of keyhole slot of a ditferent shape from that'of the corresponding end portion-of each of the heddles of the i other form of keyhole slot. 7

References Cited in the file of this patent UNITED STATES PATENTS 1 1,116,003 Ashton Nov. 3, 1914 1,970,175 Kaufmann Aug. 14, 1934 2,047,511 Kaufmann July 14, 1936 2,426,456 Kaufmann Aug. 26, 1947 2,529,555 Kahmann:, Nov. 14, 1950 2,552,487 Kahfmann May 8, 1951

Images