US1994286A - Heddle bar supporting means - Google Patents

Description

March 12, 1935; R. RAGAN 1,994,286

HEDDLE BAR SUPPORTING MEANS Filed Dec. 6, 1932 Patented Mar. 12 1935 uNirEo STATES HEDDLE A SUPPORTING MEANS Ralph Ragan, Atlanta, Ga, assignor to Steel Heddle Manufacturing Company, Philadelphia, Pa.,

a corporation of Pennsylvania Application December 6, 16 Claims.

This invention relates to supports for the' heddle bars of the heddle frames of looms.

One, of the principal objects of the invention is to provide a support and locking means for the heddle bars which is simpleand inexpensive, and which at the same time will be eflicient in operation.

. Another object of the invention is to provide a support and locking means in which a pronged washer is used for locking the heddle bars in position, the construction and arrangement being such that the pressure applied. on the prongs of the washer when the latter is in position for locking the bars, forces the bars inwardly against the heddle support so as to maintain them jammed, against the latter throughout their width. 1

A further object of the invention is to provide a spring pressed locking device in conjunction with a locking nut, the spring acting not only to normally maintain the heddle bars in locked position, but also to bind the nut in position for locking the bars in place against the support.

Another object is to provide a heddle bar support and locking means in which the spring which normally maintains the bars iii-locked position also holds the center brace in position against the support.

Further objects of'the invention will hereinafter appear as the description proceeds.

.In the drawing, in which I have shown for illustrative purposes one of-the forms that the invention. may take; and. modifications thereof;

Fig. 1 represents a'fragmentary View in elevation, partly in section of a portion of a heddle frame showingmy invention applied thereto,

some of the heddles being shown in position on the heddle bars. and the locking nut being shown in open'or raised position. 7 V

Fig. 2 represents a similar view, the heddles being omitted for vclearness of illustration, the locking nut being shown in closed or lowered position. i

Fig. 3 represents a sectional'view at right angles to Fig. 1 taken on the line '3-'3 thereof looking in the direction indicated by thearrows, the

heddles being omitted.

Fig. 4 represents a view in section taken on the line 44 of Fig. 1 looking in the direction of the arrows, the heddles and the center brace being omitted. r r Fig. 5 represents a plan View of the spring.

Fig. 6 represents a horizontal sectional View. on the line 6-6 of Fig. 4.

. Fig. '7 represents a view similar to Fig. 4 of 1932, Serial No. 645,904

a modified form of the invention, the locking nut being shown in lowered position.

Fig. 8 represents a view similar to Fig. 4 of a form of the invention thatmay beutilized in connection with a lock for a single heddle bar support. r V x 7 Figs. 9 and. 10 are views similar to Fig. 1, of modifications.

Referring more particularly to the drawing, I have illustrated the invention assembled in conjunction with the top rail of a heddle frame, it being understood that a similar arrangement may be used in connection with the lower rail except that it is in reversed position. The rail is indicated at 5, the heddle bars at 6, the upper ends of a number of heddles at 7. the center brace at 8, and the heddle bar support at 9. The latter may be in the form ofabolt flattened at its in ner end and provided with beveled. shoulders 10' against which the imier or lower edges of the heddle bars 6 rest when the bars are in position on the support. The inclination of the shoulders is such as to wedge or cam the bars against through ,a metalplate 11 attached byv means of screws 12 to the inner face ofthe rail,;may pass through an opening in the rail, and on the upper face thereof may receive a winged. nut 13 for tightening it in position and preventing it from turning in the plate 11. The nut may bear against a suitable Washer 14 which may be in the form of a lock washer if desired.

Slidable longitudinally of the support 9 is a washer 15 having the prongs or'arms 16 depending therefrom. The lower ends of the prongs are bent inwardly into alignment with the shoulders 10 and into'close association with the edges of the flattened portion of the bolt, so that while .the washer isfree to slide up and down on the bolt, it cannot turn thereon to any great extent since the clearance between the lower ends of the prongs and the edges of the flattened portion of the bolt is so small (see Fig. 7) that the prongs will bind against the bolt before the washer turns to any considerable extent. 1

The lower ends of the prongs are recessed as at 17, and the curvatureof the inner ends of the recesses is the same as the curvature of the natural rolled edges of the heddle bars, so that the lower ends. of the prongs fit the heddle bars very snugly.

Similarly the shoulders 10 at their junction with the support are likewise rounded to accord with the natural rolled edges of the heddle bars. It will be observed that due to the a'ngularity of the prongsof the washer, any pressure'tending to move the washerdownwardly when the bars are in position on the support, will also tend to flex the arms and force their lower ends inwardly toward the edges of the support, and thus bind the bars against such edges. It will also .be noted that by having thelocking arms or prongs of the washer in the same vertical plane as the locking shoulders of the support, the lateral width of the bearing surface of the flattened portion of the support, and of the prongs and shoulders can .be

. relatively great without unduly increasing the disr the center brace 8 so as to maintain such brace tance that. separates the heddles adjacent the heddle bar support. In other words maximum supporting area for the heddle bars with minimum width of such area is obtained. This isof importance, when it is understood that if the width between the heddles adjacent the lockis too great the heddles willbe separated so much. that.

reed marks will result in the cloth.

[In order to maintain the" locking washer normally in position'to hold thebars in place, I utilize a leaf springlS anchored at its upperend to the platell by one of the screws 12. At its lower end the spring is forked at '19'so as to straddle} the support 9, and rest upon the upper face of the pronged washer 15. i The spring thus constantly urges the washer downwardly; A center prong 20 is also formed on the spring and extends downwardly to engage against the upper end of against the support 9; The brace is recessed'to receive the heddle bars 6 and itwill be understood that while only the upper end of the ,bracefis shown, the other or lower end be similarly for-med. The forked end of the spring, in addi-.

tion to urging thelocking washer downwardly, by

straddling the support 9, keeps the spring from' shifting sidewise and thus prevents fouling an adjacent frame.

While the spring may, particularly in light frames, be sufiiciently strongto maintain the locking washer inlocking'engagement with the heddle bars I may, especially in heavy frames, use additional means for positively binding the locking washer: in position. This meanstakes the form of 1 alocking nut 21 which is threaded on the support or bolt 9 above the locking washer and the forked end of the spring. By turning-the nut downwardly into the position indicated in Fig. 2, for instance, the locking'washer is forced downwardlyto bring the prongs 16 thereof into tight binding engagement with the bars 6 so as to rigidly hold'th'e latter throughout their width against the bearing faces of the support. This movement of the nut will flex the spring lg substantially as indicated in Fig. 2 so that the latter willbind the nut and act as a locking means to prevent accidental unscrewing thereof. Thus the bars will be rigidly locked in position so that they cannot vibrate,

wear will be prevented, and crystallization or weakening of the metal of the bars will be pre-' vented since they will be held immovable against the support. Furthermore V the action of the prongs in binding the bars throughout theirwidth against the support will add the strength of the cross sectional area of the barsto the frame members to thus-additionally brace the frame; i

It will be noted that the plate '11 not only strengthens the frame at the point where the supportis mounted, but acts as a means for adjusting' the'vertical positionof the support, and in conjunction with the Wing nut locks the support in position.

.When, it. is. desired .to .release the heddlebars,

' If desired a spiral spring such-as 22 maybe;

the nut is unscrewed to: move it'upwardly on the support, whereupon the washer may be moved upwardly against the tension of the spring until the lower ends of the prongs clear the bars, then the latter may be moved out of engagement with the shoulders 10 and away from the'support so as to allow the heddles to be shifted along the bars;

In Fig. Iihave, shown amodification of the invention whichis applicable to a support irrwhich the bars are held in staggered relation. In this 10" form of the invention one of the shoulders 1'0 is lower than the opposite shoulder 10 and one of theprongs 15 of the locking washer 15 is length ened so astobring it into"engagement with the upper edge of the lower heddle bar 6 The same :15

formationlof spring and locking'nut, 18 and 21' respectively, may be usedasbefore.

I have shown the" invention as applied to a double'heddle bar support, but itwill be .under- ,stood that it can be applied equally as well to a single heddle bar support. In the' latter event the locking washe'r'm'ay be supplied with onlyone prong instead of two, and the support'ma'y. have one shoulder for receiving'the heddle bar' instead of two. 'Suchanarrang'ement isshown in Fig. 8;"in'which 15 is the washer having the? single prong 16", 9 is the support having the single shoulder 10,--and 6 is the-heddle bar. The same spring and locking nut may be used as before.

15 and beneath the spring, asin Fig; 1'0 ,tliesec- 0nd washer having a-lip 24 adapted-toretain ithei center brace in position. Itwill beunderstoode: 7 that eitherof these constructions maybe usedwith the double-'heddle bar support, whether staggered.

or not,- and also with the single heddle ham-Sup The foregoing description hasbeen giventfon purposes of clearness of understanding of' the invention and of the particular embodimentsthere of chosenfor illustrativepurposes; but no undue limitations should be deduced therefrom asthef claims should be construed as broadlyas -permi ssible in view of the prior art n 1';

I claim: r "v 1. In a loom heddle frame,a heddle-bar upon;

which the heddles are mountedya supportffor the heddlebar intermediate its-ends; saidzisup port having a shoulder for: receiving. the heddle 1 and having a prong-adapted to enga'gdthe'heddle? bar, a washer slidably mounted on .the "s'upport bar thereby to hold it in pcsitio'nlon the: sup port, and positive locking means" on the support? adaptedto hold the washer in position :to cause the p'rongthereof to. 'bind the. -'heddle bar'posi;

tively in fixedposition.

2. In a loom'heddle frame;=.a he ddle.

which the heddles are d? avsupportafbr I the .he'ddle bar intermediate its.;ends,i saidlsupa'r.

porthavinga shoulder for receiving the heddles. bar, a washer slidably mounted on-.-the; supp.ortand having. a prong adapted toengageeth'eheddlev bar thereby to hold...it: irf-position onigithesupport, and a locking nut. ,threaded Ion .the:s'upi-.:-

porti and. adapted tozlbe; advanced ttherieonz ito tively in fixed position. 4. In a loom heddle frame, a heddle bar upon the heddle bar'intermediate its ends, said :sup-

port havinga shoulder for receiving the heddle bar, a washer slidably mounted on the support and having a prong adapted to engage theheddle bar thereby to hold it in position'on the support, a spring having a portion bearing against the washer to urge it toward the heddle bar, and positive locking means on the support adapted to hold the washer in position to cause the prong thereof to bind the heddle bar posiwhich the heddles are mounted, a support for the heddle bar intermediate its ends, said'support having a shoulder for receiving the heddle bar, a washer slidably mounted on the support and having a prong adapted'to engage the heddle bar thereby to hold it in'position on the support, a spring having a portion bearing against the washer to urge it toward the heddle bar, and

a locking nut threaded on the support, and

adapted to be advanced thereon to holdthe washer in position to cause the prong thereof to bind the heddle bar positively in fixed position.

5. In a loom heddle frame, a heddle bar upon which the heddles are mounted, a support for the heddle bar having a shoulder for receiving the heddle bar, a washer slidably mounted on the support and having a prong adapted to engage the heddle bar thereby to hold it in position on the support, a'leaf spring secured at one end to a fixed portion of the frame and having itsother end forked and straddling the support, said forked end bearin against the washer to urge it toward the heddle bar, and a locking nut threaded on the support and adapted to be advanced thereon to hold the washer in position to cause the prong thereof to bind the heddle bar positively. p

6. In a loom heddle frame, a heddle bar upon which the heddles are mounted, a center brace, a support for the heddle bar having a shoulder for receiving the heddle bar, a washer slidably mounted on'the support and having a prong adapted to engage the heddle bar thereby to hold it in position on the supoprt, and a spring having a portion bearing against the washer to urge it toward the heddle bar, one of the members having a depending prong engaging the center brace to hold it in position adjacent the support. V

'7. In a loom heddle frame, a heddle bar upon which the heddles are mounted, a center brace,

, a support for the heddle bar having a shoulder for receiving the heddle bar, a washer slidably mounted on the support and having a prong adapted to engage the heddle barthereby to hold it in position on the support, a spring having a portion bearing against the washer to urge it toward the heddle bar, one of the members having a depending prong engaging the center brace to hold it in position adjacent the support, and locking means on the support adapted to hold the washer in position to cause the prong thereof to bind the heddle bar positively.

8. In a loom heddle frame, a heddle bar upon which the heddles are mounted, a center brace, a support for the heddle bar having a shoulder for receiving the heddle bar, a washer slidably mounted on the support and having a prong 1 adapted to engage the heddlebar thereby to hold it in position on the support, a springhaving a portionbearing against the washer to urge it?- toward the heddle bar, one of the membersrhava ing a'depending prongengaging thecenterbrace to hold it in position adjacent the support, and a locking nut threaded on the support and adapted I tobe advanced'th'ereon tozhold-the washerin position tocause :the prong thereof to bindthe heddle. bar positively.

9. In a'- loom'heddleframe,a heddle bar upon which the 'heddles are mounted; a center brace, a"

supportfor the heddle bar having a shoulder, for

receiving the heddle bar, a washer slidably mounted on the support and having a prong adapted to engage the heddle bar thereby to hold it in position onthe support, a leaf spring secured at one end to arfixed portion of the frame and having its other end bearing against the washer to urge it toward the heddle bar, one of the members having a depending prong engaging the center brace to hold it in position adjacent the support, and a locking nut threaded on the support and adapted to be advanced thereon to hold the washer in position to cause the prong thereof to bind the heddle bar positively.

10. In a loom heddle frame, a heddle barupon which the heddles are mounted, a center brace, a support for the heddle bar having a shoulder for receiving the heddle bar, a washer slidably'mounted on the support and having a prong adapted to engage the heddle bar thereby to hold it in posi- V tion on the support, a spring having a portion bearing against the washer to urge it toward the heddle bar, said spring also having an extension engaging the center brace to hold it in position adjacent the support, and a locking nut threaded end to a fixed portion of the frame and having its other end forked and straddling the support, said forked end bearing against the washer to urge it toward the heddle bar, said spring also having a depending prong engaging-the center brace to hold it in position adjacent the support, and'a looking nut threaded on the support and adapted to be advanced thereon to hold the washer in position to cause the prong thereof to bind the heddle bar positively.

12. In a loom heddle frame, a heddle bar upon which the heddles are mounted; a support for the heddle bar intermediate its ends, said support having a shoulder for receiving the heddle'bar,

of its length, and a lock nut movable on said threaded portion for holding said heddle bar in positive locked position against said shoulder.

13. In aloom heddle frame, a heddle bar upon which the heddles aremounted, a support for the heddle bar intermediate its ends, said support the said support being threaded over a portion having a shoulder for receiving the heddle bar, a

member movable on said support having a portion bearing against the heddle bar, and a lock 'nut bearing against said movable member for holding said heddle bar in positive locked position against said shoulder.

14; In a 100m heddle frame, a heddle bar upon which the heddles, arefimounted; a suppoi-t=forthe hedd1e%=-barzintermediate its ends; saidsupport havingia shoulder forvrreceivinggthei heddle bar', means *for holding: saidhedd1e-bar in I contact" .with said shoulder, and a locking member'mo'vable along said. support to maintain said holding-means in fixed position.

15. In a 100mv heddleiramaaheddle barxupon which the heddles are mountedg a support; for.- the heddle bar intermediatev its ends; said." support having -a shoulder for 7 receiving athe' heddIe bar,

the said support beingithreadedover'a pqrtionof' its length-rand means; forlocking saiduheddiebar:

esa-2am: V i r. H

inmontact=with5=said shouldminel-udingg flg ka nut qnovable=-=oim=saidihreaded portion: Y r

16. In a'loom heddle frame, a heddle banupom'; which the heddles' are 'mountei 'a support. forqthe heddle bar intermediate its -ends',- I said suppontw 5' having :-a shoulder: for receiving: the;-hedd1e'- bar and meansi for clamping .said heddle-bar injpqsi tive -1ocked=position in contactwith said'shoulder, i said means including-+- a non-resilient I member;

said clamping:

movable along 'saidsup'port to a 'positiomto-efiecfi zmii V v

Images