US1656897A - Warp beam - Google Patents

Description

Jan. 24, 1.928.

A. BALTHASAR WARP BEAM Filed March 29, 1925 351 flotom t become warped on the surface;

Patented Jan. 24, 1928.

UNIT-ED STA ARTHUR IBALTHASAR, OF 'MQNTCLAIR, NEW JERSEY.

WARP BEAM.

, Application filed March 29, 1923. Serial No. 628,448.

My present invention relates more particularly to supply reels of the type known as warp beams, although certain features of the invention are applicable in other relations.

5 In some respects the invention is related to my prior Patent No. 1,416,931, granted May 23, 1922. For instance, my present invention has among its objects to provide a warp beam with readily adjustable heads m having such true and accurate fit upon the roll and the roll itself being so accurate, that the heads have their plane, warp retaining surfaces always parallel with each other and at right angles to the axis of the roll, without the necessity of truing them as a part of the adjusting operation; also so that the seam at the sliding joint between the head and roll is so fine as to preclude the possibility of having fibres of the warp thread become caught therein.

In prior devices of this type, the-roll ofthe warp beam has usually been made of light,- well seasoned, carefully selected wood; but, however carefully selected, woo'd rolls also they sag so that the heads thereof, though at right angles to the axis of the beam at the point where they are secured, are yet not parallel with each other, and the surface of the roll, being no longer a true cylinder, wobbles or has an undulating motion when rotated, thereby alternately increasing and relaxing the tension on the warp threads as they are being wound on, or drawn off the beam. In order to avoid these difiiculties my invention includes providing a relatively thin-walled metal tube and preferably a steel boiler tube which obviously, from the mode of manufacture, will be of strictly accurate and uniform diameter both internally and externally from end to end, and which being hollow and thinwalled is comparatively light. Moreover, the final gross weight of mybeam when loaded with warp thread may be approximately the same as that of the old wooden beams that were wound with paper to hold the warpthreads in place.

Another feature of my invention is having the adjustable loom heads telescoped over the metallic roll, the inner circumference of the loom heads being true cylinders snugly fitting the roll. The roll being of metal from end to end, the loom heads may be provided with integral split clam ing hubs 68 which can be drawn together to tightly grip substantially true the roll at any part of the length thereof,

Y and without any danger of injury thereto.

inward puts the bolt tube under tension and concurrently puts the roll under compress1on.

Another feature is the use of anchoring hooks for the warp threads rigidly fixed within the interior of the metal roll, said hooks being preferably attached at uniform intervals to a bar or cleat'fixed in'theinterior of the hollow roll and freely accessible for mounting and demounting of the warp threads through corresponding openings arranged longitudinally of the roll.

The above and other objects of my invention may be more fully understood from the following description in connection with the drawingsfin wh1ch- Fig. 1 is a view in elevation of a complete warp beam partly in section,

Fig. 2 is a sectional view taken along the line 2-2, Fig. 1, and

Fig. 3 is a fragmentary sectional view taken along the line 3-3, Fig. 1.

Similar reference characters refer to similar parts throughout the several views of the drawings.

In Fig. 1 of the drawings, the various parts at the ends of the roll are shown in proportions and the actual sizes of the parts for'one type of warp beam may be scaled from the diameter of the heads. which in this particular case, measures between 9 and 10 inches. In the drawing, all of the central portion of the roll WhlCll may be very long, is broken away, the portion not'shown being a continuation of and identicalwith the portions that are shown on either side thereof.

The beam comprises a hollow cylindrical metal tube 10 preferably a relatively largegauge steel boiler tube, which as will followasanecessaryco mode of manufacture, is o strictly uniform external and internal diameter from end to end. Preferably its diameter is about 4 inches andthe thickness of its walls about mc Fitted at the ends of the tube 10 are drums D, each preferably comprising a hub.

11 telescoped snugly into the roll and having an annular groove 12 at the inner sideof its end face 13, havin an inwardly directed cone face for snu y engaging a cor-- responding outwardly irected cone face formed on the end of the roll 10. The drums D may be secured or fixed. with rewhich may be a length of steel .boiler. tubev extending axially through the length of the roll and through axial ores 15 in the hubs 11 of the drums. The hubs are preferably elongated as at 16 to more securely en age the tube 14 to which they are threads tothat as at 17. In assembly, after one of e drums D is threaded onto the end of the tension bolt 14 the latter is inserted through the roll 10, w 'ch is telescoped at one end over the drum hub. The opposite drum is thereupon threaded onto the o pos ts, end of the tension bolt,- concurren telescopocmg into the corresponding end of t e roll. nuts 18'at opposite ends are threaded upon the free protruding ends of the boltand a taper pin is inserted to ri 'dly secure tother parts 19, 14 and 18. t will be seen t as the drums are tightenui, thecentral bolt 14 is placed under tension, while the 7 roll is concurrently placed under compression, forcingthe cone engaging surfaces to accurate fit and thereby centering and truing both of them. By making the radial on the cone surface takeefiect outwardly on the drum groove and inwardly on the roll wall, much eater stress can be apfilied without possib 'ty of splitting the re end. Where two or more vnon axial" clamping bolts are provided, not only does the assembly take longer, but the uniform distribution of the stresses is rendered more rm It g The arbors 19 and 20 are snugly fitted into the hollow open ends of the tensionbolt 14 and may be 6f as t l as required, even extending tosubstantia y the center of the wargobeam, if desired. Of course, the

uence the mounting o ration to bore axiall therethrough, for t e entire length thereo for which reason such constructions do not easily .admit of the convenient and effective combination .of

the tension bolt and the arbors, in the de-v face 22- snugly en aging the corresponding inner surface of t e roll 10, and securedin 3 position thereagainst as by screws 23 a plied from the exterior of the roll.' cured to the cleat are a succession of anchoring hooks 24 for the warp threads, said is afforded to the anchoring hooks 26 for and demounting the warp threads. The warp threads are knotted together at their inner ends in as many groups as there are anchoring hooks 26, exposed between the loom heads H, each knotted sheaf being anchored at the corres nding hook, with the knot within the re The warp threads are then adjusted for uniform distribution upon the roll, whereupon the beamin is effected in the usual manner.

To a apt the war beam for weaving fab and radial ribs 30, which add to the stiff-- ness thereof and has also formed as an integral part thereof, a split clampin hub 31 of considerablelen h, projectin em one side thereof. As s own, the sti ening ribs 30 are. only of small thicknessmergin integrally with the base of the hub, am? one of the ribs 30 similarly merges with one of the lugs .32 of the split hub, the other lug 33 of which is relatively free. The inner diameter of the plate28 1s machined accurately rpendicular to the exterior diameter of t e roll 10 so as to snugl engage the same and the hub 31 prefers lyprovides only minute clearance whichis taken up completely when the clamping screw 34 through t e two lugs 32 and 33 1s tightened. Thus, the loom head will'be right angles-to the surface of the ro regardless of the position in which it it clamped thereon, and without the need for accuratel at hollow and light. tively light and special truing operation. The simple construction of the metal loom head, is particularly effective in combination with the metal roll to which it is clamped directly without the danger of forming grooves, constrictions or other injury, which would be incurred if a similar element were clamped about a wooden warp beam.

If desired, the ends of the roll 10 may be threaded and the loom heads correspondingly modified to provide a connection similar to that shown in my prior patent above referred to. My present construction is, however, preferred. It is also understood that my presentloom head may be substituted for that shown in my prior patent.

In the present embodiment, as shown, the rim 36 of each drum D extends inward from its end or head 13 to provide a concavity therebetween and the end of the roll, into which concavity the hub 31 ofthe adjacent loom head may telescope at least partly, so that a fabric of the maximum width may be produced with a warp beam of overall length shorter and lighter than in constructions which do not admit of the telescoping action or its equivalent.

From the foregoing it will be seen that my warp-beam is, in all parts, made of light metal, except the cleat 21 which is a piece of light wood. The roll of the beam is unusually'short, but amply long for a fabric of maximum Width. The tension bolt is The heads are comparastrong. The drums are construction and cooperathe roll and bolt make for simplicity and effectiveness. Consequently, the beam as a whole is strong, durable, light, not liable to injury or wear, and is BCOIlOIIll cally constructed and assembled and dislight and, their tive relation to 'mantled. There is practically no joint, slit,

crack or seam throughout the length of the roll because of the true cooperative surfaces of the roll and heads which are so close and tight that no thread or fiber can become caught or snagged. For some purposes the roll 10 can be used without the" heads. When so used, paper sheets are inserted between certain spiral layers of warp threads to prevent the warp threads at the edges from slipping as they are wound upon the roll.

I claim: 7

1. In a warp beam, in combination, a long thin-walled metal tube of diameter uniform from end to end, drums at the ends of the said tube, means securing said drums at the respective ends of said tube, said tube having a succession of openings therein between said drums, a cleat secured within the tube adjacentthe openings, and thread anchoring hooks secured to the cleat one at each opening and accessible respectively through said openings. I

limiting heads snugly cooperating with said roll, tension drums titted over the ends of said roll, bolt means extending through said roll and clamping said drums against the end thereof, and independent arbors coaxial with said roll protruding beyond said drums. Y

ll. In a warp beam, in combination, a

hollow boiler tube of strictly uniform diaineter from end to end, limiting heads snugly cooperating with said roll, drums contacting the extreme ends of the tube and securing .means extending longitudinally through the tube and threaded to said drums, whereby tension will be exerted on said securing means and concurrently therewith a compressive stra n upon said tube.

5. In a warp beam, in combination, a

hollow cylindrical boiler tube of uniform diameter throughout and having its ends beveled, drums having hubs telescoped into the ends of said tube and flanges grooved to accommodate the beveled ends of said tube, a tension bolt member extending axially through the length of said tube and threaded into corresponding axial bores in the drum hubs to place the bolt member under tension and concurrently therewith exert compressivlge strain through said drums upon said tu e.

6. The combination set forth in claim 5, in which the bolt comprises a hollow smallgauge boiler tube and in which removable supporting arbors are fitted in the open ends of said tube,

7. In a warp beam in combination, a cylindrical hollow roll of diameter strictly uniform from end to end, drums at the ends of 7 said roll and secured thereto, each drum having an end flange and a rim, the rims of the drums extending toward each other and oppositely facing limiting heads slidably mounted on said roll, said heads having hubs adapted in extreme outer position to telescope into the spaces between the ends of the roll and the drum rims.

8. A warp-beam formed of a boiler tube of uniform diameter throughout, heads mounted on the beam between its ends, tension drums mounted on the beam at its oppo site ends, a tension bolt extending through the beam and having means on the ends thereof en ging the formed of "metal.

and means on the en of the bolt for engagmg the drums-and locking the same in position onthe bolt and beam, and all the partsbemg 9. Awarp-beam formed .ofa boiler tube ofuniform diameter throughout, heads mounted'on the. beam-between its ends, tension drums mounted on the beam at its op ite ends, said drums each havin a ho ow hub fitting within the beam, a ho ow and smooth from end to end, limit tension bolt extending through the beam and having means on its ends engaging the hubs of the drum,-a'nd means also onthe ends of the bolt for locking the drums in position on the-bolt and beam, and all the parts being formed of metal. g

all its parts 10. A warp-beam ha made of metal, and the re being hollow heads snugly fitted upon the roll between 1ts ends and means for sec the heads to the roll, tension drums app ied to the ends "of the roll and each having an axial hub fitted within the adjacent end of the roll, and

tension means threaded into said hubs and j also engaging the latterto hold the drums to the re] Y 11.'A hollow warp-beam of uniform dl; ameter from end to end and having its entire circumference smooth, limiting heads snugly fitted upon the roll between its ends and means for securing the heads to the roll;

. tension applied to the ends of the roll and each having a hub with interior threads, 35

a hollow tension bolt extending through the roll and havingits ends threaded into the hubs, and nuts on the bolt to lock the drums 13. A warp-beam comprising a hollow rolln of uniform diameter from end to end, and havin its eir'cumferenee smooth from end to end, s having rims overhan ing the roll and axial hubs entering the rofi, means for clamping'the drums to the roll, and loom heads snugly fitted to the roll provided with clamping collars adaptedto slide within the rims.

14. A warp-beam comprising a hollow roll of uniform diameter from end to end and havin its circumference smooth from end .to en drums having central hubs fitting smoothly in the roll, a tubular @tension bolt threaded throughjthe axis of the-hubs, nuts threaded on the bolt and engaging the hubs to hold the drumsendwise against the roll.

Signed atNew York in the county of New York and State of New York this 27th day of March, A. D. 1923.

BiALTHASAB.

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