US2924396A

US2924396A - Thread spool

Info

Publication number: US2924396A
Application number: US466409A
Authority: US
Inventors: Lionel L Phillips
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-11-02
Filing date: 1954-11-02
Publication date: 1960-02-09
Anticipated expiration: 1977-02-09

Description

Feb. 9, 1960 1 PH|L| |PS 2,924,396

THREAD SPOOL Filed Nov. 2, 1954 INVEN L/oNEL L. PH/ Ps United Stares-1anf0 2,924,396 THREAD sPooL n i Y Lienei L. Phinipe, New vork,'N.Y. p "Appli-cation November 2, 19h54, Serial No. 466,409

2 Claims. (Cl. 242-129.8)

This invention relates generally to improvements in spools, and more particularly to thread spools used for rayons, nylons, acetates and other synthetics, and has for its primary object they provision of a spool capable of delivering visibly knotless yarn, said spool having much larger knotless yarn yardage than spools having same base dimensions and which has strength and means to create a retarding friction opposed to the free rotation of the spool to prevent over running of the same as thread is drawn therefrom. Furthermore, where knots do occur, they can be brought to the top o'r apex of the package or spool and vbe made visible to the user, whereas in all other conventional packages and spools, especially those using a ange at both ends, knots must become embedded inside the wound package and cannot possibly be made visible to the'final operator before use.

A further feature of the invention relates to the advantage of delivering nylon either preshrunk and preset,.or -prestretched and preset as may be required by the user and so provides the only put-up yet devised that accomplishes this within the limited base dimensions.

Another further feature of the invention is to'provide a put-up device capable of delivering prestretched yarn such as nylon, and which is capable of withstanding the pressure or crush on the spool parts at the same time, which permits two or three times more yarn weight thereon for same base dimension of all conventional spools, which is rotatable for consumption, and which because of larger knotless yarn yardage saves final users sizeable costs in rethreading-in on the machines. The less the number of knots, the less costly the hand mending operations are for the user.

' Further objects of the invention reside in the provision of a spool of the above nature which reduces broken filaments to a minimum and wherein the reduced diameter of the spool core renders less friction to unwinding, insures smoother yarn delivery and less strain on the yarn at each stitch.

A further feature of the invention resides in the provision of a spool o'r put-up device which is simple in construction,economical to make and eicient in operation.

A further feature of the invention resides in the fact that the spool must be precision :driven wound whereby the yarn is placed and held in a given position during winding. This is oppo'sed to the friction wind method that is used in two ended packages or spools, such winding being subject to irregular placement of yarn within the finished package. This invention eliminates such disadvantage.

These objects and other incidental ends and advantages of the invention will hereinafter appear in the progress of the disclosure and as set forth in the appended claims.

Accompanying this specification is a drawing showing a preferred form of the invention wherein:

Figure 1 is a view in perspective showing the spool and yarn wound thereon when the spool is not engaged on a spindle or the like.

Figure 2 is a sectional view of Figure 1 showing the ice,

spool on a spindle coming from the cast iron frame of the machine. l

Figure 3 is a view in perspective of the spool per se. Figure 4 is an exploded view of the parts of the spo'ol construction.

In accordance with the invention and the preferred form shown in the drawing the spool consists of a cylindrical and tubular shank 10 serving as the axis therefor and is preferably formed of steel for nylon, and plastic for other types of yarn. Tube 10 because of its strength is of smaller diameter as compared with other spools made of paper and wood because of its inherenfstrength quality; and the small dimension of the tube permits increased weight and yardage of yarn to be wound thereon and reduces the frictional area with a spindle bearing thereby requiring less pull fo'r unwinding the spool with a consequent minimization of breaks.

Tube 10 is provided with a ange 11 at the base thereof for engaging the wall of a concentric recess 12 provided in the base of a frusto-conically shaped spool base member 13 having an axiall aperture 14 therein in alignment with tube 10. A rubber, liber or cork washer or disc 15 is adapted to sit inthe recess of base member 13 by frictional engagement and is further adapted to abut tube flange 11 so that when the bearing spindle element 16 engages tube 10 for rotation of the spool, the spool will be able to rotate but the action of the disc against flange 11 will provide a retarding friction opposed to free rotatio'n of the spool to prevent over-running of the same as thread is withdrawn therefrom. It is to be observed that the tube 10 isprevented further from rocking motion by engagement of flange 11 with disc 15. Spindle 16 proceeds from the top surface 17 of a cast iron frame of the machine indicated by numeral 18 and is secured thereto by a threaded projecting portion 19 and a nut 20.

The spool described has yarn 21 wound thereon in cross winding and under tension. Thus, catching of threads in the crossed winding of the preceding revolution is eliminated, the yarn cannot imbed itself in preceding layers nor can it bite against the conic surface of the base 13. l

In a structure of the device described, the weight of the yarn is doubled or trebled by virtue of the length and small diameter of tube 10 and the area of winding surface o'n the inclined walls of the base 13; and the energy required to unwind is less because there is less sliding friction. The spool is prevented from rocking on the spindle as has been mentioned and a structure is provided which allows winding thereon under tension of high yardage with no breakage and consequent knotting during feeding.

I wish it understood that minor changes and variatio'ns in the structure, location and integration'of parts may all be resorted to Without departing from the spirit of the invention and the scope of the appended claims.

I claim:

1. A yarn spool adapted to be rotated on a bearing spindle for yarn unwinding and having a central and elongated steel tubular member of relatively small out side diameter serving as an axis of rotation, a frustoconically shaped base member having an axial opening to receive said tubular member and having a concentric recess on the bottom wall, a ilat ange on the lower edge of said tubular member adapted to engage the base of said recess, and a centrally apertured resilient disc member frictionally engaged and lying in said recess and abutting said tubular flat flange on the underside for resistance to rotational movement and engaging the wall of said bearing spindle to prevent over-running of said spool during rotation thereof and to prevent rocking of the tubular member.

2. A yarn-spool adapted to be rotated on a bearing spindle for yam unwinding and having a central and conically shaped base member having an axial opening to receive said tubular member and having a concentric recess on the' bottom Wall, the said tubular memberhav# 5 ing a bottom at flange engaging the base-offsaid recess', and a'centrally apertured resilient disc member frictionallS/ fitted andlying vin' said recess abutting said tubular ange on the underside for resistance-toV ro'- tational movement and engaging the Wall of said bearing spindle to prevent over-running of said spool during rotation thereof and to prevent rocking of the tubular member.

" N'IEDfsTATs PATENTS lSmith Apr. 23, 1867 Gates Mar.v24, 1896 Wai-dwell Nov. 30, 1909 De,W01fx a; Feb. 20, 1917 Gobeille, June 13, 1933 sept.4 10, 1935 "Dun1ap;1 Feb. 9, 1937.