US2608218A - Thread-cutting temple for looms - Google Patents

Description

Aman-26,l 1952 G, F BAHAN 2,608,218

THREAD-CUTTING TEMPLE `FOR LOOMS Filed NOV. 24, 1950 2 SI-IEETS--Sl-IEET l INVENTORZ GEORGE E BAHAN.

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ATTORNEYS,

Aug- 26, 1952 G. F. BAHAN 2,608,218

THREAD-CUTTING TEMPLE FoP. Looms Fild Nov. 24, 195o 2 SHEETS-SHEET 2 yzo INVENTORI` GEORGE F BAHAN.

ATTORNEY S Patented Aug. 26, 1952 UNITED P'EENE y2,608,218 'THREAD-coruna TEMPLE Fon LooMs 'George FJBa'han, Greenville, S. C.

'ApplicationNovemher 24, 1950, Serial No. 197,327

both sides thereof, these vblades being adapted to move rearwardly and downwardly simultaneously, in an Aarcuate .path, upon a `beat-up stroke ,of the lay 4of the loom on account of v,bei-ng engaged by the lay. Thehool; portions of the Amovable vblades normally extend rearwardly beyond `the i rear 4facelof 'the templeand :the filling endswould be directed to theopenlower-.edge thereof foilowing a bobbin vtransfer operation.

However,as is -well Aknown 'to those vfamiliar with the art, .the-filling ends arexnot-'placed under y...tension following a .transfer operation and, as a result of the slack thereof, the `lilling Vends-quite often fall, .by.1gravity, outof engagement with ythe hook at the rear end of'theimovableblades -with the result that the iilling may not vbe severed adjacent the selvage of vthe fabric being woven, often resulting inthe loose ends being .drawn-back =into the fabric ,being woven.

`It is, therefore, an object of this invention ,to provide an improved.thread-cutting .temple which also has alstationary thread-cutting blade, the

rear edge of which is disposed substantiallyvflush with the enlarged reai-edge of .thetempleand a pair of lmovable bladesdisposedadjacentlopposed sides :of .the stationary blade, @these movable blades being movable Ain a ,substantially straight 'line' yrather than arcuate s o as nto substantially reduce the Wear inherent .in lthe `type of-:blade vheretofore described. 'The improvedhlades are an `integral part of a. thread-cutting member and veach 'has anupwardly,andinwardly turned pprtion at the free endpthereof deningwahoolrvportion, `this-hook portion in eachfof Vtheimovable 'blades being/ overlapped by a rearwardly projectingportionof the blade disposed*inlsubstantially 'closelyspaced relation to the upper edge v4of 'the portion-of theiblade which deiinesV a hook therevon, whereby, upon aibeat-up-stroke of the lay, @resulting =in the -movableblades being moved-forwardly pasti-the stationary blade,=following albobbin transfer operation,'lthe1lling` ends .ridefup the `outerfsurf ace Yof v.the vprojections "formingsai'd `hoolrportions Jand areipreven'ted from riding upwardly beyond azpredetermined point by the overlapping projections onitheblades. the'. blades fmove iorwardly, .by'zvirtuez of a-beat-.up :stroke of 1' fthe ,-lay, :the Vyarn :will be l'ensna'red ibythe upwardly 'projecting hook fportions :thus :insuring that the filling endsgwillbezpulledfbysthehook .portions past the stationary ibla'desato; be fsevered thereby 'although' ,the filling ien'ds-may not be r6.0 the lapin a back-center position;

8 ACIamS. (Cl. 139-303) under tension. "It is evident that the upturned hook portions will prevent the iilling ends from falling out of the hooks, by gravity, thus over.- coming one of the major defects in the operation of thread-cutting temples which have heretofore been in use.

.'It lis another object of ythis invention to provide an improved thread-cutting temple having an enlarged rear end portion provided with a forwardly and rearwardly extending slottherein and which slot is "loosely penetrated by a forwardly and rearwardly movable thread-cutting -member lhavingspring means associated therewithwhich normally urges the same rearwardly or outwardly @withrespeot to the enlarged-portion of the temple.` lThe .thread-cutting member has a longitudinally extending -slot therein which is loosely penetrated bya guide piper-substantially less diameter than `the width of the slot and, upon a-beat-upstroke of the lay, a downwardly projecting portion 1of l,the thread-cutting-,rnember is engaged bythe .lay and causes `the blades-thereon to move inwardly, and, asthe'bladesgmoveinwardlp the bladesare so mounted inthe temple that they willnoten- :gage the .guide pin vprojecting therethrough-during fitsmovementnor will they engage the lower wall ,of vthe `slotiin `,which they are horizontally mounted, since the -spring means will serve :to hold-the portion of the thread-cutting ,member fremote from :the -blades -thereowhich would 'be .of,substantiallyngreater thickness thantheblades thereon upwardly against .the upper wallof the :slot-in the enlargedportion of the temple threadcutter. Itiisevident that amor/.able thread-cutting ,blade ymounted. in this 4manner would have a.usefulpliie surpassing by far the useful life'rof .a .blade mounted in the manner ofthe conventional blade asheretofore described. n n

Some of thegobjects'of the invenjtionhaving ,been stated, otherrobjects'will appear as the description proceds when taken in connection with theaccompanyng drawings, in which- Figure l is a'topvplan view ofthe improved -thread-cutting temple disassociated` from "the loom;

Figure Zisanenlarged isometric View of the movable threadcutting member removed from -the item-ple @Figure 3 is anV enlarged 'fragmentary rear Aend elevation -of -theimproved thread-cutting temple and looking at the left-handv side of-Figure \1;

Figure 4 is a fragmentary.elevationlooking at 'the left-hand side of Figure andishowingthe blade por-tions of ythe improved thread-cutting r member in a4 protruding position .relative f to A' the 4temple;

:Figure 5 is a tview'partiallyzin longitudinalyer- ,tical cross-.section `looking -from a-Lmedial-portion of `4.the ,loom and ftoward :the :replenishing` iside, with f parts abroken away or omitted Yand ,showing Figure 6 is a vertical sectional view taken substantially along the line 6 6 in Figure 3;

Figure '1 is a vertical sectional view taken substantiallyalong the line 1--1 in Figure 3;

Figure 8 is an elevation looking substantially along the line 8 5 in Figure '1 and showing the movable thread-cutting member per se removed from the temple.

As the general operation and construction of an automatic iilling replenishing loom and of a temple are well known and familiar to those skilled in the art, it is only necessary to illustrate and describe in detail those parts directly concerned with the present invention.

The loom comprises the usual frame having side frames I, only one of which is shown, connected at the front by a breast beam I I. A supply of filled filling carriers or bobbins I 2 is maintained in a hopper I3 mounted at the replenishing side of thc loom. When'the filling in the running shuttle Il. is substantially exhausted, suitable conventional detecting mechanism actuate the usual filling replenishment mechanism to force a fresh bobbin I2 into the shuttle I4 and discharge the exhausted bobbin from the shuttle.

The filling replenishing mechanism is conventional and is clearly shown in the patent to Stimpson No. 1,552,016 of September l, 1925, and a further description thereof is thus deemed unnecessary. The shuttle I4 is adapted to be thrown across the race plate I5 of a lay I1 vby conventional means not shown. The lay I1 is suitably secured to a pair of swords 20, only one of which is shown, and which are oscillated t0- ward and from the breast beam by the usual pitman rods 2l, pivotally connected, as at 22, to the swords 20. The swords also support a reed cap 23 and a conventional reed 24 is supported between the reed cap 23' and the lay I1.

The temple, broadly designated at 25, comprises the usual stand 26 which is rigidly secured by a bracket 21 to the breast beam II. In this stand 26 is mounted a temple arm 30 having an enlarged rear end portion 3l integral therewith which carries the usual temple head 32, this temple head 32 being secured to the rear end portion 3I of the temple arm 30 by any suitable means suchas a screw 33 (Figure 7). The portion 32 also. has a lateral extension 3Ia integral therewith. A spring, not shown, in the temple stand 26 acts normally to project the temple rearwardly towards the lay and on each beat-up stroke of the lay, a heel portion 34 depending from the temple arm is struck by the lay and the temple is thus moved forwardly in the usual manner.

The temple head 32 is also held in proper relation to the enlarged rear portion 3| of the temple by means of a dovetail portion 36 which ts in a `slot 31 in the enlarged rear portion 3I of the temple arm 30. It will be noted that the enlarged portion 3l of the temple arm 30 is joined to the temple arm 30 by a neck portion 43 which is disposed forwardly from and in spaced relation to the temple head 32.

The portion 3I of the temple arm 3U and the temple head 32 are provided with coinciding forwardly and rearwardly extending grooves therein which are indicated at 4I and 42, respectively, and which define the lower and upper walls, respectively, of a slot 43 in which the improved temple-cutting member, to be presently described, is adapted to operate. The proximate surfaces of the lateral extension 3Ia of the armv 30 and the temple head 32 are concave and have disposed therebetween the usual temple roll 44 which is rotatably mounted on the reduced proximate end portions 45 and 46 of respective shoulder screws and 5I which threadably penetrate the opposed downwardly projecting ends 32a and 32h, respectively, of the temple head 32.v

The temple roll 44 has the usual spaced barbs 44a thereon which are used for the well known purpose of holding the fabric taut at the selvages thereof as the fabric is passed between the temple roll 44 and the concave upper surface of the lateral extension 3Ia, of the temple arm 30.

The parts of the loom heretofore described, as well as the parts of the temple heretofore described, are conventional and it is with these parts that the present invention is adapted to be associated.

The rear face of the enlarged portion 3I of the temple arm 30 has a vertically extending slot 54 therein, the inner wall of which is cut at an angle which extends downwardly and inwardly, as is clearly shown in Figures 6 and 7, and against which a dovetail portion 56 of a stationary thread-cutting blade 51 is secured by a screw 60, the head of which engages the rear surface of the dovetail portion 56 of the stationary blade 51 and which is threadably embedded in the enlarged portion 3l of the temple arm 3U. This insures that the rear or cutting edge of the cutter blade 51 will extend in a vertical plane substantially flush with the rear surface of the enlarged portion 3| of the temple arm 30 and at right angles to the path of travel of a movable threadcutting member designated broadly at 62.

This movable thread-cutting member 62 comprises a rearwardly extending portion 63 which is integral with a forwardly extending portion 64 disposed in vertical off-set relation to the portion 63 and from the front end of which an enlarged bunter portion 65 depends. The neck portion 40 of the temple arm 3i) is vertically slotted, as at 66 (see Figure 1) in such a manner as to form a substantially vertical wall 61 and a horizontal upper wall 68 in the neck 40 of the temple arm 3U and to also form an angularly disposed wall 1I on the laterally extending portion Sla of the temple arm 30.

The neck portion 40 of the temple arm 30 has a shoulder 12 thereon (Figure 4) against which one end of a torsion spring 13 is urged, this torsion spring having several convolutions disposed around a pin 14 projecting from the temple arm 3U adjacent the shoulder 12. This torsion spring 13 extends downwardly and has several convolutions disposed around a pin 15 projecting from the enlarged bunter portion 65 of the threadcutting member 62. This torsion spring 13 not only serves to normally urge the movable threadcutting member 62 rearwardly so the blade portions thereof, to be presently described, will protrude from the rear surface of the enlarged portion 3I of the temple arm 30, but also servesto urge the thread-cutting member 62 upwardly to where the upper surface of the portion 64 will bear against the horizontal wall 68 of the slot 66. Since the portion 64 of the thread-cutting member 62 is stepped downwardly relative to the portion63, shoulders 16 and 11 (Figures 6 and 7) are formed at the junction of the portionsI 64 and 63 of the thread-cutting member 62. Thus, the torsion spring 13 normally urges the shoulder 11 on the thread-cutting member 62 against the top edge of the wall 1I of the slot 66.

The rear portion 63 of the thread-cutting member 62 1s provided with a longitudinally extendupon the occurrence of alling replenishing operationlandto pull the lling end therewith upon beinginoved to retracted position .by the lay.

2. An improvement in a thread-cutting temple for looms, said loom having allingreplenishing. mechanism and also. having an oscillatable lay. adapted t ,engagethe temple in the course of a beat-.up lstrokezthereof, said4 improvement comprising said thread-cutting temple having a forwardly and rearwardly extending slot therein, atthreadp-cutting member mountedfor horizontal forward and rearwardmovementin the slot in thetemple, said thread-cutting-member having at least one blade on the rear end thereof, spring means. normally urging the blade to aprojected position rearwardly of 4the temple, said Aspring means'also serving to support the thread-cutting member so the blade von the thread-cutting member` will not engage the walls of the slot in which it is mounted, said blade, `having a transverse Slot inrits` rear end, the` rear end of theV transverse` slot being partially closed by an upwardly projecting hook portion on the blade, means on thegthread-eutting member engageable by the lay formoving the blade on the thread-cutting memberto a retracted position upon a beat-up stroke of the lay and said hook portion being so positioned that, in the course cfa beat-up stroke of the lay, the filling end resulting fromva, filling replenishing Aoperation will be ensnared by the hook portion of said blade and drawn therewith into the temple as the blade is moved to retracted position to thus severthe filling, end.

3. In a loom having a frame and a lay and a bobbinj transfer mechanism and a temple disposedjat the front of the lay, an improvement in. said temple for `severing filling ends which occur as a result of a bobbin transfer operation comprising a movable thread-cutting member mounted for movement in the temple in the direction of travel of the lay, tension means normally moving the thread-cutting member rearwardly in the temple, a thread-cutting blade on the rear end of the thread-cutting member and being provided with an upturned Yhook portion on the rear end thereof, a stationary cutterblade carried by the temple and disposed immediately adjacent the blade on thel thread-cutting member and means engageable by the lay in the course of a beat-up stroke thereof for moving the thread-cutting member forwardly whereby the filling ends resulting Afrom a bobbin transfer operation will be engaged and carried by the hook portion on, the rear end of the movable thread-cutting blade `past the stationary blade `to Vbe severed thereby upon abeat-up stroke of the lay. I f. 4. In an automatic filling replenishing loom having a lay and also-having auframe including a horizontal front frame member disposed forwardly of the lay, an element supported by said horizontal frame member and extending rearwardly therefrom and terminating at the beat-up point of the lay and adjacent the selvage of the fabric being woven and having a stationary thread-cutting element in the rear end thereof, an improved thread-cutting member adapted t0 cooperate with said stationary thread-cutting element for severing the lling ends resulting from a lling replenishing operation comprising a horizontally movable blade supported by said element secured to the frame and slidably engaging the stationary thread-cutting element at one side thereof, means normally causing said blade t0 protrude rearwardlyA ofthe stationary threadcutting element at apoint immediately above the lay, an .upwardly facing hook portion on the rear end of said movable blade and means responsive to a beat-up stroke of the lay for moving said movable blade forwardly past vthe stationary thread-cutting element whereby, in the course of a beat-up stroke, the lling ends resulting from a lling replenishing operation will beensnared by said hook portion on the rear end of the movable cutting blade to be carried thereby past the stationary thread-cutting element to be severed thereby simultaneously with the completion of a beat-up stroke of said lay.

5. In lan automatic filling replenishing-loom having a layand also having a frame including a horizontal front frame member disposed forwardly of the lay, an element supported by said horizontal frame member and extending rearwardly therefrom and terminating at the beat-up point-of the lay. and adjacent the selvage of the fabric being woven and having a stationary thread-cutting element in the rear end thereof. an improved thread-cutting member adapted to cooperate with said stationary thread-cutting element for severing the lling ends resulting from the filling replenishing operation comprising a horizontally movable blade supported by said element secured to the frame and slidably engaging the stationary thread-cutting element at, one side thereof, means normally causing said blade to protrude rearwardly of the stationary threadcutting element at a point immediately above the lay, and upwardly facing hook portion on the rear end of said movable blade, means responsive to a beat-up stroke of the lay for moving said movable blade forwardly past the stationary thread-cutting element whereby, in the course of a beat-up stroke, the filling ends resulting from a filling replenishing operation will be ensnared by saidA hook portion on the rear end of the movable cutting blade to be carried thereby past the stationary thread-cutting element to be severed thereby simultaneously with the completion oi.' a beat-up stroke of said lay, and a protuberance on said movable blade disposed above and in the same vertical plane as the hook portion thereon to assist in directing'said filling ends to the hook portion on the movable thread-cutting blade.

6. In an automatic lling replenishing loom having a lay and also having a frame including a horizontal front frame member disposed forwardly of the lay, an element supported by said horizontal frame member and extending rearwardly therefrom and terminating at thev beatup point of the lay and adjacent the selvage of the fabric being woven and having a stationary thread-cutting element in the rear end thereof, an improved thread-cutting member adapted to cooperate with saidV stationary thread-cutting element for severing the filling ends resulting from a filling replenishing operation comprising a horizontally movable blade supported by said element secured to the frame and slidably engaging the stationary thread-cutting element at one side thereof, means normally causing said blade to protrude rearwardly of the stationary thread-cutting element at a point immediately above the lay, an upwardly facing hook portion on the rear end of said movable blade, means responsive to a beat-up stroke of the lay for moving said movable blade forwardly past the stationary thread-cutting element whereby, in the course of a beat-up stroke, the, filling ends resulting fromV a filling replenishing operation will be ensnared by said hook portion on the rear end of the movable cutting blade to be carried thereby past the stationary theread-cutting element to be severed thereby simultaneously with the completion of a beat-up stroke of the lay, said element supported on the frame of the loom having a longitudinally extending slot therein in which said movable thread-cutting member is loosely mounted, said slot in the member supported on the frame of the loom being partially defined by an upper wall extending from a point forwardly of the blade on the movable thread-cutting member, the threadcutting member having an upper surface disposed substantially forwardly of the thjreadcutting blade carried thereby and spring means urging said upper surface of the thread-cutting member into engagement with said upper wall of the slot upon forward and rearward movement of the thread-cutting member, whereby said front upper portion of the thread-cutting member will move in sliding engagement with the upper wall of said slot thus obviating the necessity of the upper and lower surfaces of the blade of the thread-cutting member moving in sliding contact with any stationary part of the supporting means therefor.

7. In an automatic filling replenishing loom having a lay and also having a frame including a horizontal front frame member disposed forwardly of the lay, an element supported by said horizontal frame`member and extending rearwardly therefrom and terminating at the beat-up point of the lay and adjacent the selvage of the fabric being woven and having a stationary thread-cutting element in the rear end thereof, an improved thread-cutting member adapted to cooperate with said stationary thread-cutting element for severing the filling ends resulting from the lling replenishing operation comprising a horizontally movable blade supported by said element secured to the frame and slidably engaging the stationary threadcutting element at one side thereof, means normally causing said blade to protrude rearwardly of the stationary thread-cutting element at a point immediately above the lay, an upwardly facing hook portion on the rear end of said movable blade, means responsive to a beat-up stroke of the lay for moving said movable blade forwardly past the stationary thread-cutting element whereby, in the course of a beat-up stroke, the filling ends resulting from a lling replenishing operation will be ensnared by said hook portion on the rear end of the movable cutting blade to be carried thereby past the stationary thread-cutting element to be severed thereby simultaneously with the completion of a beat-up stroke of said lay, a protuberance on said movable blade disposed above and in the same vertical plane as the hook portion thereon to assist in directing said filling ends to the hook portion on the movable thread-cutting blade, said element supported on the frame of the loom having a longitudinally extending slot therein in which said movable thread-cutting member is loosely mounted, said slot in the member supported on the frame of the loom being partially defined by an upper wall extending from a point forwardly of the blade on the movable thread-cutting member, the threadcutting member having an upper surface disposed substantially forwardly of the threadcutting blade carried thereby and spring means urging said upper surface of the thread-cutting member into engagement with said upper wall of the slot upon forward and rearward movement of the thread-cutting member, whereby said front upper portion of the thread-cutting member will move in sliding engagement with the upper wall of said slot thus obviating the necessity of the upper and lower surfaces of the blade of the thread-cutting member moving in sliding contact with any stationary part of the supporting means therefor.

8. In an automatic filling replenishing loom having a lay and also having a temple which extends above the lay in close proximity thereto upon a beat-up stroke of the lay and said temple having a stationary thread-cutting blade at the rear surface thereof, an improved thread-cutting member loosely mounted in the temple for forward and rearward movement therein, said thread-cutting member having a longitudinally extending slot therein defining a pair of closely spaced relatively thin vertically extending blade portions at the rear end of the thread-cutting member and which closely straddle said stationary thread-cutting blade, the blade portions having coinciding upwardly facing hook portions on the lower rear edges thereof and also having coinciding overlapping upper portions disposed in vertically spaced relation to the hook portions, spring means normally causing said hook portions on the blades to protrude rearwardly beyond the rear face of the stationary threadcutting blade, said temple having a slot therein in which the thread-cutting member is mounted and the upper and lower walls of said slot adjacent the blade portions of the thread-cutting member being spaced from the corresponding upper and lower edges of the blade portions, said slot having a horizontal upper wall portion at the front end thereof, said spring means also serving to urge the upper surface of the front portion of the thread-cutting member against said front horizontal wall portion of the temple and means on the thread-cutting member engageable by the lay upon a beat-up stroke thereof to cause the lling ends resulting from a lling replenishing operation to be directed to and ensnared by the hook portions on the rear ends of the blades and to be pulled therewith past the stationary blade upon the completion of a beat-up stroke of the lay resulting in the filling ends being severed and whereby the relatively thin upper and lower edges of the bladeV portions of the thread-cutting member are prevented from engaging the upper and lower walls of the slot in which they are disposed.

GEORGE F. BA1-IAN.

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

'UNITED STATES PATENTS Number Name Date 1,128,440 Gerrard Feb. 16, 1915 1, '72,930 Hollins Feb. 16, 1926 2,226,279 Bahan Dec. 24, 1940 2,432,110 Lambach Dec. 9, 1947

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