US1706371A - Loom - Google Patents

Description

' March 19, 1929. G. B. AMBLER 1,706,371

LOOM

Filed Feb. 24, 1927 2 Sheets-Sheet 1' lnveniow': 660729617. flmieic March 19, 1929. AMBLER 157063071 LOOM Filed Feb. 24. 1927 2 Sheets-Sheet 2 lnvewv: lleoi'gefl Mien 4 Patented Mar. 19, 1929.

UNITED STATES VPATENTHQEFFICE.

GEORGE B. -AMBLER, OF LEOMINSTER, JWASSACI-IUSETIS, ASSIGNOR T F. 'A. WHITNEY CARRIAGE COMIPA'N Y, OFlL'IEQMINSTER, MASSACHUSETTS, A CORPORATION OF MAS- SACHUSETTS.

LOOM.

Application filed-February 24, 1927. Serial No.-170,493.

This invention relates to looms and in particular to looms for weavingrelatively bulk-y or stiff material which is not well adapted for handling by the ordinary missile shuttle; ;As an example of such materialI may mention so-called fiber or artificial reed fabrics which are extensively used in the manufacture of:baby carriages and furniture. The loom which I here disclose as an example of my invention is in some respects similar to that'disclosedfin the patent to Arrouquier 618,820, Feb 7, 1889, and from one point of view maybe considered as an improvement oniaaloom of the type shown in that patent and one providing for particularly rapidand accurate weaving.

My inventioni-will be wellunderstood by reference to the following description of an illustrative embodiment. thereof, such parts as are necessary for an understanding thereof beingshown in the accompanying drawings, wherein Fig. 1 isa fragmentary and brokenfront' elevation of theloom reed and the feeding means for the filling. strand;

Fig. 2 is a sectionon the line 22 of Fig. 1 ona larger scale;

Fig. 3 isa fragmentary end elevation of the filling feedingmcans and various driving trains;

Fig. 4 is .an enlarged vertical section through one of the reed dents and cooperating parts; and v Fig. 5 is a horizontal section showing a detail to be referred to.

In the accompanying drawings I have shown onlyso much of a loom mechanism as is necessary to provide a clear understand ing of the invention. It will be understood that the =warps arel-ed from suitable let-off v mechanismand pass through the reed about to be described, and that the finished fabric may pass over abreast beam to suitable take-v up mechanism. ,Any suitable shedding mcans, -as, for instance, harnesses, are employed to form a shed as indicated in Fig.2. All these parts may be of any suitable or conventional character and-it is not necessary here to illustrate them. I

Referring now to Figs. 1 and 2 of the drawings, I have there shown a suitable reed 7 having a series of. upstandingdents 9 between which pass the warps and which are adaptedto beat up. the filling. Thereedis reciproeated and preferably is, arranged r to move rectilinearly, herein being shown assliding at its ends on the frames 11 at the sides of theloo-m and guided thereon by suitable gibs 18. The reciprocating motion of-the reed is preferably incessant. In other words, while, of course, in the example shown the reed comes to a dead stop at its forward and rearmost positions respectively, there is. no dwell or cessation of motion during which time the pick takes'place. Thus, for example, eccentrics 15 on shaft 17 may -move the reed incessantly with a simple harmonic motion. 1 Among other advantages of. this construction it may be noted that as the reedmoves forward toward the fell of the cloth to beat up'the filling, while the motion as a whole may be rapid, it is relatively slow at this portion of the cycle so that the filling is pushed powerfully and gently into the fell of the cloth without danger of its being thrown too far or of its rebounding. v I

Referring nmvtoFig. -1, theend of the filling strand is projected forward in a manner hereinafter more fully to be described by means of-one or more pairs of feed rolls ,(two being here shown) which may embody an upper driven roll ,19 and a 'cooperating'lower driven roll 21., these rolls being mounted at'the-side of the loom in a fixed position as regards the motion of the reed. Suitable guiding means on the reed, herein shown as fingers 23 cooperating with the dents 9,.receive the end ofthe strand and prevent it from buckling or twisting and guide it through the shed to provide a pick .or shot of filling. The. fingers 23 (see Fig. .4) are here shown as grooved adjacent their lower ends along oneiside thereof as indicated at 25, these grooved side portions being presented to the dents 9 of the loom while the filling is being inserted to form guide eyes and the grooves may be somewhat flared onithe receiving side as shown to facilitate the passage of the strand therethrough. As the reed moves'to its forward position, toward the right in'Fig. 2, the ;fingers23 may be swung to the dotted line .position of F ig. 2 to release the pick of filling which is deposited therefrom and beaten up by the dents 9 into the fell of the cloth. Then as the reedretreats, the fingers are closed again to the full, line position of Fig. :2 or the position of Fig. 4 ready to receive the new pick of filling.

facing wall of this groove and are secured in position by lock nuts 35. Suitable springs may be provided to hold the set screws against the wall of the groove 33 and I have herein shown the main body of each finger as cored out to accommodate helical spring 37, a suitable cross-bar 39 being provided for securing one end of the spring while the other may be detacha'bly hooked to pin 41 projecting from the forward face of the corresponding reed dent 9. The arrangein ent shown permits individual adjustment of the fingers relatively to the shaft so that the grooved ends thereof close snugly against the cooperating faces of the reed dents. The construction is also such that the spring 37 may be unhooked and the entire finger swung counterclockwise, viewing Figs. 2 or 4-, out of the way. Thus, for instance, if it were desired to weave a narrower fabric on a loom of given construction some of the fingers at the right of the reed, viewing Fig. 2, could be thus temporarily thrown out of operation.

The rock shaft is actuated during the forward portion of the travel of the reed and I have herein shown lever arms 43 extending upwardly from the ends thereof and carrying cam followers 45 working in the cam slots 47 in plates 49 bolted to the loom sides. It will be apparent from Fig. 2 that as the reed moves forward from the full line position shown, the follower 45 will strike the forward vertical. wall of the slot and travel. downwardly in contact therewith, rocking the shaft and swinging the fingers 23 to the dotted line position shown, thus releasing the strand of filling which is beaten up into the fell of the cloth by the dents 9. The feeding rolls previously referred to are driven in accurately timed relation to the moven'ient of the reed, the shaft 17 which reciprocates the latter herein, being shown as taking its motion through the bevel gears 51 and a gear train 53 from a power shaft 55. This power shaft 55 through a gear train 57 may drive countershaft 59 to which is geared the shaft 61 of the feed roll 19 and also, through a universal-joint 63, the shaft 65 of the feed roll 21, this shaft being mounted. in a sliding box 67 to permit the roll 21 either to be pressed upwardly toward the roll 19 to pinch the filling strand f between. them and feed the same forwardly or to be dropped downward ly to interrupt the feeding of the strand. This motion is effected by suitable edge cams 69cooperating with suitable follower surfaces on'the sliding boxes 67 to reciprocate the latter and the shafts of these cams 69 are herein shownas driven through a suitable train 70 including a driving gear 72 which is in effect formed as a part of the hub of one of the bevel gears 51. The shafts of cams 69 and the eccentric shaft 17 are thus operated in accurately timed relation.

The cycle of-operation is such that, assuming the reed in the position of Fig. 2and moving'rearwardly or toward the left, the harnesses have operated to change the shed and the fingers 23 have swung downwardly to the full line positionto present a series of guiding eyes throughout the length of the reed. The cams 69 then raise the lower feed rolls 21 which grip the filling and start feeding it forwardly through these eyes and this motion may continue during the retreating movement of the reed and during the first part of its forward movement, the reed not being stopped while the pick of filling is inserted. The length of time during which this feeding action iscarried on and its speed will depend. to some extent upon the width of the fabric being woven. The cams then permit the rolls 21 to be moved downwardly to interrupt this feeding II1OV61116]1t,'1)l16 filling, which preferably has been drawn forward from a large supply coil, is severed at the intake side of the reed and as the reed moves forward the fingers 23 are swung to the dotted line position of Fig. 2, releasing the pick of filling which is beaten up into the fell of the cloth as the reed reaches its forward center position. The cutter for severing the filling is preferably located on the reed and I have herein indicated at 71 (Fig. 1) its position at the inner side of an apertured upright 73 at the end of the reed nearer the feed rolls. As the particular construction of this cutter forms no part of the invention herein claimed and as it may take widely varying forms, I have deemed it unnecessary to illustrate it in detail. It may, if desired, be operated in the forward part of the reed movement by means similar to those utilized for operating rock shaft 25.

In the preferred embodiment of the invention shown the feed rolls are stationary at the side of the loom while the reed reciprocates' constantly and I preferably pro vide means for carrying or guiding the strand between the rolls and the reed. I have herein shown (see Fig. a swinging guide 7 5, conveniently in the form of a tube fitting the filling sufficiently close to prevent any buckling of the same, interposed'betweena' fixed guide 77 at. the bite of the feed rolls and the apertured upright 73 at the end of the reed having an opening in alignment with the eyes thereon, Th guide invention.

tube 75 is mounted to swing in a horizontal plane as the reed reciprocates and for this purpose one of the elements between which it extends, herein the fixed. guide'77 adjacent the feed rolls, is recessed or socketed and the end of tube 75 works therein in a manner somewhat like a 'ball and socket joint. The opposite end of the tube may be provided with a shoulder '79 while the upright 73 on the. reed has an opposing shoulder 81 and about these shoulders is placed a helical compression spring 83 which suspends the right hand end of the tube, holds the left hand end (see Fig. 5) seated in the socket on guide 77 and permits a swinging movement thereof as inclicat-ed by the dotted line in Fig. 5. The construction also permits the 'ready removal of the guide tube which is of considerable advantage in the case of any stoppage or breakage of the filling. To permit it to be removed it need only be pressed toward the right in Fig 5, compressing spring 83 until theleft hand end is freedfrom the socket in which it works, and'the-tube may then be lifted out.

I have described. in detail the particular embodiment of my invention shown by way of example in the accompanying drawings.

The detailed character of the description has had for its'object to make clear what is there shown and it isnot to be understood as definitive of or limiting the. scope of the Obviously the construction might be widely varied without departing from the spiritv of the invention.

What I claimas new and desire to secure by Letters Patent I shall express in the following claims.

1. In a loom, in combination, a reed reciprocating with an incessant uniform motion, elements cooperating with reed dents to provide guide eyes for a shot of filling, means for moving said elements'to open the eyes to release the filling at about the forward position of the reed, and feeding means for a filling strand located at the loom side and relatively stationary-as regards the movement of the reed, operating intermittently on the filling to feed the same during a part of the motion of the reed while said eyes are closed and in itself by said operation effective to traverse the filling completely across the fabric.

2. In a loom, in combination, a reed reciprocating with an incessant uniform motion, elements cooperating with reed dents to provide guide eyes for a shot of filling, means for moving said elements to open the eyes to release the filling at about the forward position of the reed, feeding means for afilling strand. located at the loom side and relatively stationary as regards the movement of the reed, operating intermittently on the filling to feed the same during a partof the motion of the reed while said eyes are closed and m itselfby said operation effective to traverse .the filling completely across the fabric, and a device inj terposed between said feeding means and thereed adapted to maintain a continuous guiding control of the filling between said elements during its projection.

3. In a loom, in combination, an incessantly reciprocating reed, elements cooperintermittently thereon during a part of the' motion of the reed while said eyes are closed, and a swinging guide for the filling strand connecting said means and the reed.

4. In a loom, in. combination, an incessantly rectilinearly reciprocatingreed, elements cooperating with reed dents to provide guide eyes for the filling strand, means for moving said elements to open. said eyes to release the filling at about the forward position of the reed, means at the loom side for projecting a filling strand in the plane in which the eyes move, a swinging guide for the strand'interposed between said projecting means and the reed and means for operating the projecting means during av part of the motion of the reed while said eyes are closed.

5. In a loom ofthe' class described a reciprocating reed,ua'rock shaft extending therealong, fingers carried by the rock shaft having recessed portions opposing the dents of the reed, an arm on the'shaft and a fixed cam adjacent thereedcooperating with said arm.

6. In a loom, oi the class described a reciprocating reed, a rock shaft extending therealong,- fingers individually adjustable angularly about the shaft having recessed portions opposing the dents of the reed, an arm on the shaft and a. fixedcam adjacent the reed cooperating with said arm.

7. In a loom of the class described a reciprocating reed, a rock shaft extending therealong, fingers having recessed. portions cooperating with the dents of the reed and engaged with said rock shaft to be lifted thereby away from said dents and normally individually springpressed toward the same. and means for intermittently rocking the shaft.

8. In a loom of the class described a reciprocating reed, a rock shaft extending therealong, :fingers having recessed portions cooperating with the dents of the reed, set screws adjustably engaging the fingers individually with the shaft to be lifted thereby away from the dents, said fingers being normally spring pressed toward the same, and

means for intermittently rocking the shaft.

9. In a loom of the class described a reciprocating reed, a rock shaft extending therea-long, fingers having hubs on the rock shaft, set screws engaging said hubs individually therewith, said lingers having recessed portions cooperating with the dents of the reed and means for intermittently rocking the shaft.

l a pivotally mounted guide tube between said guides.

ll. in a loom, in combination with a reciprocating reed which provides a guideway through the shed for supper-ti the filling during its insertion and including guide at one end of the reed, mean the loom side for feeding the filling strand inclridinga guide through which. the filling passes, and a removable guide tube extwiding between said guides and connected .e eto for swinging movement, the connection at one end comprising a spring.

12. In a loom, in combination with a reciprocating reed which provides a guideway through the shed for supporting the filling during its'insertion and including a guide at one end of the reed, means at the loom side for feeding the filling-strand including a guide through which the filling passes, one of said guides having a socket and the other a, shoulder, a tube having one end working in the socket and at the other end a cooperatlng shoulder and a compression sprlng be tween the shoulders.

13. In a loom, in combination with means providing'a guideway through the shed for supporting the filling during its insert-ion, the feeding means for the filling comprising cooperating feed wheels therefor, one of said wheels being mounted in sliding box, means for synchronously rotating said wheels including a universal joint to said one wheel, and a cam for reciprocating said box.

let- The filling guiding element having a hub and an extension therefrom provided at its end with a groove along one side, the intermediate portion being cored out to accommodate a spring and having provision for anchoring an end of the spring.

15. In. a loom, in combination, an incessantly reciprocating reed, elements cooperating with reed dents to provide guide eyes for a shotof filling, means for moving said elements to open said eyes to release the filling at the forward position of the reed, means at the loom side for projectinga filling strand through the eyes operating intermittently thereon during a part of the motion of the reed while said eyes are closed, a I

carried by the reed at-the end thereof adjacent the projecting means through which the filling passes and means for severing the filling inwardlyi of said member.

16. In a loom, in combination, an inces santly reciprocating reed, element-s cooperating with reed dents to provide guide eyes for a shotfilling, means for moving said elements to open said eyes to release the filling at the forward position of the reed,

means at the loom side for projecting a filling strand through the eyes operating intermittently thereon during a part of the motion of the reed while said eyes are closed, a member on the end; ofthe reed ad acentthe projecting means through which the filling passes, a device providing a continuously effective guide between said means and said inwardly oft said member.

17. In a loom, in combination, eating reed, elements cooperating with reed dents to provide guide eyes for .a shot of filling, means for moving said elements to open said eyes to release the filling at'the forward position of the reed, means at the loom side for )rojecting the end of a filling strand through said eyes while they are closed, a member carried by the reed at the end thereof adjacent the projecting means through which the filling passes and means for severing the filling inwardly" of said member.

In testimony whereof, I have signed my name to this specification.

GEORGE B. Anemia.

member and means for severing the filling a recipro-

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