US2155505A - Yarn holder - Google Patents

Description

F. w. PAFFEN I 2,155,505

YARN HOLDER April 25, 1939.

Filed Dec. 11, 1936 I2 INVENTOR F1627 14 P/f/ff/V Patented Apr. 25

UNITED STATES PATENT OFFICE YARN )HOLDER.

Fred W. Pafien, Forest Hills, N. Y., assignor to Celanese Corporation of America, a corporation of Delaware This invention relates to yarn holders for use in looms and more particularly to an attachment adapted to hold cop tubes whereby said cop tubes may be used in a larger variety of looms, especially in automatic bobbin-changing looms.

The yarn for use in non-automatic looms is normally wound on small tubes or cones which are made of vulcanized fiber, pressed paper, cardboard and the like, and which have a thin metal ferrule, provided with a flange pressed thereon to form the base ofthe tube or cone. These tubes or cones are called cop tubes or pirns and are not only relatively inexpensive but are also easily wound with yarn. For automatic bobbin-change ing looms, however, a special yarn holder, called a quill, is required. Quills used in automatic bobbin-changing looms are generally made of wood, the base being sometimes reinforced with metal, and have rings of heavy wire encircling the base, by which rings the quill is held by the spring holding jaws of the shuttle in the automatic bobbin-changing loom. These quills, by virtue of their construction, are much more expensive than cop tubes and require special machinery, including larger than normal spindles,

when yarn is wound thereon.

It is an object of this invention, therefore, to provide a novel, emcient and inexpensive device which may be quickly and effectively attached to a cop tube so that the same may be used as a quill in an automatic bobbin-changing loom. With the device of the instant invention it is necessary for the manufacturer of fabric to wind the yarn on cop tubes only, for .use in looms of 36 all types. By winding yarn on cop tubes, not only is the amount of reserve stock required by the manufacturer kept to a minimum, but alsoa smaller number of winding machines, and all- 'of them of a'substantially single type, is required. 40 Moreover, the spindles on such winding machines may be of one size, or at least of a single type, which factor also makes for economy.

, Other objects of this invention, together with certain details of construction and combinations 5 of parts, will be described in the specification and pointed out in the appended claim.

In the accompanying drawing: Figure 1 is varview of a cop tube afllxed to the attachment of the invention, said view being so partly in cross-section to show the construction of said attachment,

Figure 2 is an elevational view of the attachment itself,

Figure 3 is an elevational view of the bottom so of the attachment, and

Figure 4 is a view similar to Figure 1, showing a modified form of attachment. v

The cop tubes or pirns normally employed in non-automatic looms comprise a cone shaped hollow core I made of any suitable material, such 5 as vulcanized fiber, pressed paper, cardboard or similar material and may have a metal ferrule 2 pressed over one end or base of the same. The metal ferrule is normally provided with a flange 3 and grooves 4 to prevent the yarn from slipping 1o off the core. The attachment or adapter which forms the subject matter of the instant invention comprises a base, generally indicated by reference numeral 5, of any suitable material, but it is preferably formed of metal. The base is counter- 16 sunk at 6 to form a, shoulder I. Extending from shoulder l and integral with the base is a hollow spindle 8 of a diameter to readily slip within thehollow core of the'cop tube. The spindle is split, at one or more places, for a substantial distance along the vertical axis as is shown at 9, for 8.

- purpose which will hereinafter be pointed out. A

screw threaded opening II extends through the base and through ,the lower portion of the spindle, which opening is adapted to receive a screw as I2 having an integral extension or shaft l3 surmounted by a ball ll. The'base is also provided with annular ribs l5, or, instead of ribs, rings of heavy wire may be employed as is well understood in the art. A cop tube may be quickly and easily to transformed into a quill for use in an automatic bobbin-changing loom by slipping the cop tube over the spindle 8 until thr flange 3 rests on shoulder I of the base. Th; screw I2 is then rotated by means of a clock key or any suitable 86 device which would fit over winding stem I6 of the screw. The screw is rotated in such a manner that the ball H on shaft I3 is pulled downwardly against the sloping wall ll of the spindle. As will be seen from the drawing, the wall converges co downwardly so that as the ball is pulled down by the rotation of screw l2, the ball forces the split wall of the spindle outwardly, thus firmly locking the cop tube in position on the attachment. The base 5 is also counter-sunk as shown at I8 46 in order that the winding stem l6 should not extend below the lower edge of the device.

In Figure 4 there is shown a modification of the device shown in Figure 1. In this modification the extension. or shaft I2 is providedwith a so I conical tip which cooperates with the sloping wall of the spindle to lock the cop into position on the attachment. As will be seen from Figure 4, the sloping inner wall of the spindle converges upwardly. Therefore, in order to lock the cop in position on the attachment, the screw it is turned may be made therein without departing from the spirit of my invention.

Having described my invention, what I desir 10 to secure by Letters Patent is:

An attachment for .cop tubes or pirns comprising a base. a split hollow spindle integral therewith and having a tapering inner wall, said base and spindle being screw threaded, a shaft, having a conical tip, threaded in said base and spindle and means on said shaft for imparting movement'theretorelative to said spindle, the conicaltip on said shaft cooperating with the tapering inner wall for expanding said hollow spindle so as to lock the cop tube or pim in position ,on said attachment.

FRED W. PAFFEN.

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