US2406434A - Warp beam - Google Patents

Description

Aug. 27, 1946.

WAR? .BEAM

Filed March 13, 1945 o. v.l PAYNE l 2'406'434 Patented Aug. 27,V 1946 o ifuNr-rlgp STAT :Qscar E V. Payne, Leicesterj, ,"Mass.;A assigner to JCrompton JiaKnowles Loom "Works, Worcesten '-Mass., a'corporation of Massachusetts Application-.March .13, 1945 Serial No. 582,551

. ,l This'invention relates -to improvements in warp .beams :and itis Vthe vgeneralobjectof the inven- 9 claims.y `(C1. 242-1245) .-tion.to `construct -a beaminsuch 4away .that the .pressure .of the warp threads can be used tohold .the`.-beamheadinposition. A.

f 'IIihe warp for .looms ,is .generally wound on a beam having .a barrelfand adjustable heads between which the ywarp threads .are .wound `on the barrel. ',In the pastavariety .of devices have been .employed vto .hold .thebeam lheads in their adjusted position. along .the barrel, but noneof-.them Tsofar-.as I amawarehave,made'fuse ofthe warp litself Itohold the Yheadsfir'lposition. iAS Awarp is 'I-I ,adjustable along Lthebarrel Ito Vary vthe vlwidth ofthe warp space. ,Only one headisshownfbutlit is 'to'be understood 'that al'hea'dsuch asillustrated sleeve "S formed preferably 4oihthinV `sheet'meta'l Wound the 'inner layersleXertv considerable force on the barre'Landin the case of beams made of woodthisforce is sufficient to crush ordeform the barrels. 'It is an .importantobject of my present inventionto utilize thisforce exerted bythe warp threads to clamp a part .of the beam head onthe barreltightly enough to prevent endwise slipping. This result .can be .accomplished by providing ,the beam .head with a ,split sleeve extending ,over the barrelinsuch a .Way that the warp threads will compressthe sleeve and hold it frictionally` against the 'beam'.barrel.

'The aforesaid Sleeve Will ordinarily be made of thinsheet metal andwill adda negligible amount tothe windingdiameter of "that part of the. barrel adjacent to the beam head. Where the sleevesl are made of'thieker materialfhowever, it may be desirable to preserve a uniform winding diameter throughout the use d length of the barrel, and to effect this result Ait ,is a 'further object of mypresent invention 'to utilize ashellbetween thefsleeves of the heads and form theshell `and sleeves with overlapping ,parts which will in effect .provide a windingsurface of uniform diameter.

Withtheseand other objects in View which will appear as .the description proceeds, my invention resides in the combination andarrangement of parts hereinafter describedandset forth.

In the .accompanying drawing, wherein two forms of the inventionareset forth,

Fig. 1 isa vertical longitudinalsection through part of a, warp beam`A having my invention applied thereto, I t n Fig. 2 is a perspective view of the beam head and attached sleeve shown in Fig. 1, and

Fig. 3 is a View similar to Fig. 1 but showing a modied form of the invention.

Referring to the drawing,V the beamB comprises a cylindrical barrel I 0 provided with gudgeons l I one of which is shown in the drawing for support in winding machines and looms. Each end of the beam is provided Witha warp head and having lan `internal dia-meter only 'slightly greaterthant-he external vdiameter of the Mbarrel along itwherr the :head :is adjusted-lengthwise of the beam. l'-Ihehulo of the head lia-sa bore'Zllinto which the `sleeve -is driven, and' the -sleeve may "be turned outwardly to form aange 21' for-attachment as by welding or the like'to the outer-end ofthe'huhi' i v ltheir linner fendslandiat fthir outeren'ds terminate Aclose to theflange. "The particular f-form'o'f slot shown in Fig '2 is .not essential. The slots form vtwo resilient sections f21 and "28, "respectively, which are capable of movement toward eachother `under-'pressure of the warpdue tothe slots. "While I have :shown Aonly)T two slots, lyet Amy invention :is not necessarily thuslimited, sincesmore -fs`lots`1can begprovidedriffitiisjdesired .to provide additional resilient fsections. The inner rend lof .the @sleeve is preferably tapered ;as :at 2t9'to .favoidean abrupt shoulder between the" sleevel and .the barreL In operation, the heads Hwil1 be slid'along .the barrel to-define a warp space ofthe desired width, yafter'which'the setscrew l5 of each head is tightened toV hold the beamheads .in position.' The windingoperation is then startedrandfas theiirst wraps of warp are Wound on the beamzthepresg sure; which theyexert forcesfthe resilientsections of each,s1eeve very -rmlyfagainsttheebarrelnnd n 'holds the sleeveandfits flange or klieadV-.I-I against lsaid parts.

i v2. In a Warp beam'havin'g'a'barrel and a head y on Ysaid barrel,':"aplurality of circumferentiedl'y barrel may if desired be provided with a surface sufciently smooth to prevent abrasion of the warp threads but possessed of suicient frictional Y characteristics to hold the sleeve sections.

In the modified form ofthe invention shown in Fig. 3 the barrel and head may be as alreadyrdescribed, but the sleeve 35 will'be made of some- What thicker material. such ast tq .eect ,ag sub-3 stantialincrease in' diameter of the Winding surface of ythe beam adjacent tor-the head. This sleeve 35 Will be slotted in a manner similar to Y that described for the preferred form of the in- (Y vention, but in addition to the slots'will also-'be 1 provided with teeth 36 separated by slots v 3'1 which t Vindent the inner end of the sleevesl35. Surrounding the barrel is a shell 38 having teeth y39A to enter the indentations 31 in the sleeve 35 and having slots 40.to receive the teeth 36 on the sleeve 35:

I 4 connected to the head and capable of being forced into holding relationship with respect to the barrel by warp threads Wound around said meansV to prevent slipping of the head along the barrel, 3. In a Warp beam having a cylindrical barrel, a head mounted on said barrel, and compressible means extending along the barre1 and connected Ato the'head ,and having1 partsthereof which are 'forcedfintd holding relati'oh Ivvth respect to `the barrel by the force exerted by the Warp Wound Y f around said means to prevent slipping of the head along the barrel. Y

14. In a Warp beam having a cylindrical barrel, a head mounted on said barrel, a sleeve secured to the head vand having parts thereof extending along the barrel and so formed as to beforced into holding relation with the barrel by forces exerted by the warpthreads Wound around said The adjacent parts of the shell and sleeve-. arevfY` therefore constructed with overlapping parts which permit a limited longitudinal adjustment of the head along the barrel while presenting in yeffect a'substantially cylindrical Winding surface 'of uniform diameter extending between the head on the barrel. The shell may also be slotted as-V Y at 4I to `permit asyapplicationthereof Yto ,the

barrel. f The Shell Willdhave but one of these slotsV and lduring the Winding operation the slot will be narrowedjsomewhat andthe .shell Will be Corn- "pressed togrip the barrel tightly in a manner similar to that described for the sleeves of the vheadsi From'the'foregoingtvvll be seen that I'have provided `arQvvarpbeam having va head with which is associated al part vvhich` is forced against the barrel in holding, relationI with respect thereto by the Warp threads. It will further be seen that the sleeves on the heads,vvhile litting the barrel closely, permit longitudinal adjustment of the headalong the barreLand that the sleeves are provided lwith compressible sections defined by i slots Ynot necessarilyiopen as set forth hereinbut providing resilient parts connected to the AWarp head and compressible by the warp thread. In

that an' auxiliary .shell surrounds thebarrel to maintain a uniform winding diameterthrough- .out theeffective length of the beam and that'the shell has parts which-overlap similar parts on the sleeves to prevent the formation of an abrupt shoulder. Y Y

Havingthus described my invention it will be seen that'changes and modifications may be made therein by those skilled in the art Without departing from the spirit and scope ofthe inventionand I do notWish to be limited to thedetails herein disclosed, but what I claim is 1. Ina warp beam having a barrel and a warp head on said barrel, means connectedto said head and extending along said barrel and havingparts thereof spaced circumferentially and capable of being forced into holding relationship with respect'to the barrel by warp threads wound'around spaced Ineansdistributed around the barrel'and the modified form ofthe invention it willbeseen ing split parts, extending along the barrel and Vso constructed that the split parts can be forced against the lbarrel by warpr threads Wrapped around said parts forthe purpose of preventing slippage ofthe head'longitudinally ofthe barrel.

j '7. In a warp beam having a barrel and a Warp head, a sleeve connected to the head and extending along thev barrel' and having split portions the exterior diameterofvvhich is greater than the barrel diameter, said portions `being forced into holdingrelationwith respect to the barrel by :the 'pressure of the warp threads vWound around said .split parts,jand a split shell ofsubstantially the same exterior diameter as saidsplit portions surrounding said barrel, said sleeve and shell having overlapping parts on which Warp' threads' are wound. 5 v Y ..7

' 8. In a Warp beam havin'gabarrel and a warp head,` a sleeve connected to thehead and extending along the barrel and having split portions forced into holding vrelation with respect to the barrel by the pressure'of the warp threads Wound around said fSplit parts, and a split shell surrounding said barrel, ysaid sleeve and shell having overlappng'parts on which warp threads are Wound.

9. In avwarp beam having a barrel' and a head thereon, a sleeve 'onnectedto the head and having split parts extending along the barrel and so constructed that the splitpparts can be forced against the-'barrel by Warp threads Wrapped around said'parts `for thepurpose of preventing slippage of the head longitudinally of thebarrel, and a split shell surrounding the barrel said Ysleeve and shell khaving complementarily1 formed n overlappingl parts lonwhich 'the'warp its Wound.

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