US 766175 A
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No. 766,175. PATENTED AUG. 2, 1904.
G. W. FOSTER.
APPLICATION FILED DEC. 26, 1902.
lwenfoz attoumiga UNITED STATES Patented August 2, 1904.
SPECIFICATION forming part of Letters Patent No. 766,17 5, dated August 2, 1904.
Application. filed December 26, 1902. Serial No. 136,725. (No motlelfi T0 (til who? it may concern:
Be it known that I, G EORGE W.Fos'rna,a citizen of the United States, residing at Westfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Yarn -Packages, of which the following is a specification.
My invention relates to that class of pack-- ages of yarn, thread, cord, &c.,- hereinafter included within the term yarn, which are conical in shape, the mass of thread being wound in reverse coils upon a conical core or tube driven by contact with a drum, as in the well-known Foster cones or Broadbent produced on machines, such as shown in Letters Patents Nos. 92,613 or 535,616. It has been found that when the yarn is so laid upon the core that the coils or spirals of yarn are nearly uniformthat is, with the coils the same distance apart and each adjacent portion of the coil practically parallel except a slight increase of angle toward the apexthere is more or less resistance to the uncoiling of the yarn drawn from the top of the cone, and this resistance increases as the yarn is uncoiled from the upper end of the cone and is withdrawn from near the base.
My invention consists in so laying the coils of yarn in the body of the cop as to overcome this objection, and to this end I wind each coil with a gradually increasing pitch from the base to the end at an angle greater than normal, as fully set forth hereinafter and as illustrated in the accompanying drawings, in which- Figure 1 is a diagram illustrating the manner in which the coils are laid in building up my improved yarn-package, and Fig. 2 is a perspective view of the said package.
The body of the yarn B is laid upon the core or tube O in any suitable manner-as, for instance, by means of a winding roll or drum against which the core C is placed, so as to be rotated thereby as the yarn is passed between the two and wound onto the core. The
yarn is so guided and placed onto the core,
however, that instead of being laid in coils the the turns of which are the same distance apart it is laid in coils which are much more open toward the upper end of the conethat is, with a graduallyincreasing angle, as indicated by the line a a", diagram Fig. 1-- the angle of the reverse coils gradually decreasing toward the base. As the result of thus laying the yarn, if the tension is properly regulated the body of yarn is denser and thicker at the base of the cone than at the point or opposite end, and it has been found asa result that the yarn will deliver more freely and with a much more uniform resistance than from those cones where the coils are of uniform pitch throughout.
\Vhile of course in the ordinary conical cop there is a slight increase of angle toward the narrow end or apex, which results as a consequence of the decreased diameter toward this end, my improved cop has this angle greatly increased over that which results merely from the decrease in diameter.
ithout limiting myself to any specilic arrangement of coils other than specified, I claim I 1. An improved yarn-package consisting of a body of yarn wound in crossed coils about a conical tube or core, the angle of each of said coils increasing from the base to the opposite end of the package to a degree in excess of that resulting from the decreased diameter toward the apex, substantially as set forth. a.
2. An improved yarn-package consisting of a body of yarn wound in crossed coils about a conical tube or 'core, the angle of each of said coils increasing from the base to the opposite end of the package to a degree in excess of that resulting from the decreased diameter toward the apex, the body of yarn being thicker at the base than at the opposite end of the package, substantially as set forth.
3. An improved yarn-package consisting of a body of yarn wound in crossed coils about a conical tube or core, the angle of each of said coils increasing from the base to the op- In testimony whereofIhave signed my name posite end of the package to a degree in exto this specification in the presence of two sub cess of that resulting from the decreased discribing Witnesses.
ameter toward the apex, the body of yarn GEORGE W. FOSTER. 5 being thicker and more compact or dense at Witnesses:
the base than at the other end of the package, FRED A. VVILDE,
substantially as set forth. J OHN E. GANNING.