US941595A - Bobbin-holder. - Google Patents

Description

W. WARDWELL.

BOBBIN HOLDER APPLICATION ,I-ILED O0'l.28, 19013.

9%L595i Patented Nov. 30, 1909.

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specification.

T he purpose ofniy UNITED srArnsrr gnnr oFFIon,

SIMON W. .WARDWELL, OF rnovtnlancn,

KNITTING BoBBmcoMPANY, oFfieoRT A 'BOBBIN-HOLDER} T 0 "a l W mitmqy 9 I git knejvn that L'SI'i o lV Rnwnr a. citizen of'the' United States, residing: at

Prmdenc, in the county of Providence and State'lofBhode Island, have invented cerbin-iIIolders, of which the following :is .a

My iijivention relates to improvements in tubes "or holders for bobbins or yarn packages.

improvement is to pro-. vide'a sectional, telescopic tube which, when extendednto its full length, providesa suitablelsupport on which to wind bobbins of ,yarnor other textile materlals,

"when the yarn is unwound therefrom, autoand which matic ally' closes up andv is shortened in length so that the yarn may deliver freely without dragging on the holder. 4

My improvement also provides a much. lighter holder than those now. in general use, and one'which can be compacted in much less space, so that it. is more convenient in handling and more econ omical for shipment.

invention is fullyset forth in the following specification illustrated by the accompanying drawings, in which g 8a longitudinal I sectional view showing the holder extended, and illustrating'fthe form of the bobbinwound thereon by dot-and-dash linesjand Fig. 2, a longitudinal, sectional view showing the holder a contracted after wound. v a Y My improved holder is particularly adaptthe bobbin is partly uned foruse in supporting yarn wound into the form shownby dot-and-dash lines in 'Fig. l in which -the bobbin has a substantially flat base, a cylindrical body and a ta-,, pered nose orde'livery end :This form of bobbin is generally wound on wooden holders having frusto-conical bases and comparas' tively. plong v shanks extending therefrom. Theyarnis laid in conical-layers starting on aw ding continues the .path; of vtraverse b af the holde and a pointedfnoi, the c taperas that.

of the' ba sei Siieh bobbiiis'areealledknit-,-

ting bobbins and are usedto deliver yarn to tain new and useful Improvements in Bobthe butt.

lines is adapted'to be usedtwitlr bobbinsw s ueh fl as described in myl,."pending applicants the tapered surface ofthe base with atrav- -e1"se equal to the length ofithe taper; and-as ND, MAINE, A c'onrona'rro'nio'ii, uhitn improved form 4 further improvement by providingrfor; scoping the tube portion oftthe holde form traverse.- to this latter formof bobbin; ai base-oi -the" through thiscontracted;openings?' y b thea-section b is formedinvithtwozannularwf nnonn ISLAND, ssteitbxi T. f

Specification of Letters'Patent." Patented n ic t onmed o tob'" 1 23, 1308. Serial No. 459,2e5s. 1

. knitting machines where it is @essentiarthat the yarn be unwound very freely;without? hitch or drag which wouldabe lai'aibl'e te -break" the needles and injure the fabric,- In my 432,450, filed May 12, 1908, li-haveishown an of bobbiri'in which the balkyg "5 heavy, wooden holder is dispensed with and a light tube substitutedxwitlr'ionly" a tam parat-ively small butt or fornlr at-its "base end- Vith this form of bobbin. a much greater amount of material can be coinpacted-in'the same space andthe excessiwe' ..weightand ex pense of the wooden holderai'sdone away wit-h. In the present inventionlI now show- Fig. 1 shows the tubea i tnmade parts a, b and 0, but itwill .be'iobvio hat it might be constructed 1 :of fany nuinber "offl sections. The lower or baseise tiorr iw has a' butt or form (Z which may :be'of'any suitable material such as wood or -fiber'.-=5izThe butt is fastened to the tube-sectionrby ranyfysuitable means, such, for instance, saswhewshoeingwith the tube flanged outvatz'i'tsiend'and hen-t over to indent and engagesthe-materiali-of The form of butt(shown by 'full' above referred to; in which therbase bf th bobbin is composed principallyisof'yarn built up in layers of diit'erent lengthswhich overlap each other and iorm a conicai'heelf on which subsequent layers of uniform trav- 0 erse. are laid. With the -previouslyi lknown P and used form of bobbin.F'the rwinding; is initiated on a butt or form havinga=diam6- ter at its base equal to the full'sdiameter of the bobbin and all of the layers a re fofruni To adapt ther reseI-it tube M dimensions illustrated by t-he dash lines 12 might be substituted, but the smaller butt i enlargements or ringsiwhichzzfit the'v i t erior of the main; ,portmnaof thez section a PWI't-h a: l

slight clearance. The ring 6 serves as a 119 pending application S erialit 0. 60

12 to provide bearing points within the section a so that the section 6, while sliding freely, will be held in proper alineinent with the section a.

The section Z) is contracted at its upper end with a converging rim 6?, similar to the rim a on the section a, and the section 0 is fitted to slide in this contracted opening in the-same manner as the section 5 slides in the section a. The section 0 also has two annular enlargements c and 0 which provide a bearing against the interior of the section b and prevent its removal from the section b. The upper end of the section 0 also has its rim turned in at 0 to provide a smooth edge for the yarn to draw across.

The section Z1 is slightly shorter than the section a and its lower end is formed inward in the flange 6* so that the section 0 cannot drop down through the section b, but will project slightly through the top when the. tube is contracted as shown in Fig. 2. For the same purpose the section a is longer than either of the -other two sections and is :formed with an internal, annuwr prij'ection or stop a to prevent-the SCl0I1FJ b and c from sliding down through the base. It

will be seen from reference to Fig. 2 that 1, the tube is held from telescoping.

the seveir-al sections project slightly, one above another, when the tube is telescoped, so that their ends may be grasped by the fingers in extending the tube.

Having now described the structure of the device its mode of operation in use will next be explained: The tube is extended to its full length and applied to the spindle of the winding machine. lVhen used with the small vbutt (Z, shown by full lines, the yarn is wound on to the conical face of the butt.

starting with a traverse equal to the length of the taper of the latter.- As the yarn is built up on the base of the tube the traverse of the guide which lays the yarn is gradually increased until't'iie predetermined maximum diameter of the bobbin is reached. Thismethod of increasing the traverse as the winding proceeds will cause the layers to overlap each other-and the yarn will be built up in frusto-conical form. After the conical heel is completed the winding continues with all layers uniform in length and with the path of traverse of the yarn guide advancing gradually along the length of the tube. As the yarn is built up along the tube the coils of winding formv a bond between the different sections of the tube, so that when the bobbin is completed to the dimensions illustrated by dot-and-dash lines, F iIg. 11 other words, the mass of yarn wound tightly around the several sections of the tube hold the latter in their extended positions in rel tion to each other, making a practically rigid internal core or support.

In delivering the material to the knitting or other machine the bobbin is stood on its base endand the yarn unwound from the pointed delivery nose. As the yarn unwinds down the tube it will release the several sections of the latter, one after another, and as the yarn comes off of each section it will drop down into the next lower section. For illustration: when the yarn has been unwound down to the point f, shown by broken lines Fig. 2, the section 0 will be completely uncovered without any coils extending around itfrom the section 7). There being no bond to hold the section c raised out of the seetionb, gravity will cause it to drop down or telescope into the lower section I), where it is held by the rim 7)". After the yarn has been unwound down to the pointy the section Z) will be-uncovered and will drop down into the section a carrying with it the section 0. The stop a prevents the sections 1) and 0 from dropping clear through the sec tion a, as previously explained. It will thus be seen that the tube is automatically shortened as the yarn is unwound. the object being to prevent the delivering yarn from wrapping around the tube in unwinding or from dragging across its end. With the holders and tubes now in use, as the yarn is unwound it leaves the support projecting upward and there is a decided tendency ot the yarn to wrap around. this shank or tube and cause undue drag and resistance to the unwinding. It will be seen that-the more yarn there is unwound, the greaten the length of support there is left extending,

and the greater will be the drag or resist ance to the delivery. It is very desirable that the tension on the delivering yarn be maintained uniform from start to finish of unwinding so that the fabric produced by the machine will not be afiected to vary its character.

My new improvement provides for automatically shortening the bobbingtube or support at intervals of the unwinding, so that the yarn is prevented from dragging on the tube and therefore the tension of delivery will remain practically constant.

It will also be seen that my new holder is much lighter than the Wooden holders now in general use and is of considerably less bulk when telescoped.

of boxing and freight will be greatly reduced on account of the saving in bulk and weight.

Having now described my device in detail, without limiting myself to the exact con struction and arrangement shown, what I claimiszy g 1 i In a holder for bobbins, the combination of a plurality of tube-sections arranged to telescope, one within another, with means to limit the movement of the sections in relation to each other to prevent their separation.

2. In a holder for bobbins, the combination of a sectional, telescopic tube with means to limit the movement of the sections in relation to each other to prevent their separation and a butt secured to one of the sectit, as.

3. 'n a holder for bobbins, the combination with a plurality of tube-sections of gran ated diameters arranged to telescope, one ithin another, and a frusto-conical butt c 1 the section of largest diameter.

4. 1i. bobbin holder, the combination with a tube formed in sections adapted to telescope, one within another, of a butt secured to the section of largest diameter, and means to limit the movement of each section in relation to the next section.

In a bobbin holder, the combination of a plurality of tube-sections of graduated diameters arranged to slide, one with another, with means to limit the movement of the sections in relation to each other, so that when the sections are telescoped each suc ceeding section will project slightly beyond the end of its adjacent section.

6. The combination in a bobbin holder, of a telescopic tube formed with sections arranged to slide one within another, each section having one end contracted, with the next inclosed section projecting through the contracted opening, and the sections formed with stops to prevent their ends from sliding out beyond the openings in the inclosing sections.

7. The combination in a bobbin holder, of a telescopic tube having sections with contracted openingsfwith one section fitted to the contracted opening of the next section, and annular projections on each inclosed section adapted to prevent the removal of one section from the next surrounding section.

8. The combination in a bobbin holder, of a telescopic tube having sections a, b and a, each section. having a contracted opening at one end, the section 6 having an outside diameter adapting it to slide through the opening inthe section a, and the section 0 adapted to slide through the opening in the section b; both sections 12 and 0 having annular enlargemei'its adapted to the internal diametors of the sections in which they slide 'Jthe section 6 having a rim 6 to prevent thencetion 0 from dropping down through it, and the section a having a stop a on its interior to prevent the section through.

9. The combination in a bobbin holder having a plurality of sections adapted to telescope one within another, each section having a bearing in its surrounding section which allows it to slide freely, and means to limit the movement of one section in relation to its inclosing section so that when the sections are" withdrawn asuiticient length of bearing contact is provided between each 6 from dropping .two sections to hold the several sections in alinement. or

In testimony whereof I afiix my signature in presence of two witnesses.

' SIMON \V. \VARDVVELL. Vitnesses:

JOHN V. DEAN, -DANIEL MCNIVEN.

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