US1542611A - Spool - Google Patents

Description

R. K. CLARK Jun 16, 1925.

SPOOL Filed Nov. 19, 1924 INVENTOR FP. K CA/PK Patented June 16, 1925.

UNITED s'i'ATsI 1,4z,611 PATENT "oi -F1CE.

ROBERT K. CLA'BK, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNO'R TO THE AMERICAN lTHItEAD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

steel..`

Applicationnled November 19, 1924. Serial No. 750,798.

To all witam t may ao'ncern:

Be it known that I, ROBERT K, CLARK, a citizen of the United States, residing at S ringfield, coun'ty of Hampden, State of assachusetts, have invented a certain new and useful Improve'ment in S'pools, of which the following is a full, clear, and exact description.

My invention relates to spools, and has special reference to an article of this chatracter that is particularly adapted to receive a universal winding of thread. The object of the invention is to provide a device for securing a head to the shank or core of a spool, which is of simple and cheap construction and may be easily applied, and which when applied firmly secures the head on the core.

The following is adeseription of my invention reference being had to the accompanying drawings, in which,

Figure 1 is a vertical sectional view, partly in elevation, of -a spool embodying the invention in its prefei'red form with a mass of thread wound thereon;

Fig. 2 is. a Vertical sectional view of the lower portion of the spool with the head and securing device thei'efor shown assembled on the spool core, previous to the device be'- ing acted upon to cause it to secure th'e head lto the core;

Fig. 3 is a similar view but with the device shown in securing position;

Fig. 4 is a sectional plan view, taken on the line 4-4 of Fig. 1;

Fig; 5 is a plan view of the blank from which the securing device may be formed; and

Fig. 6 is a view in perspective of the securing device. n

The present application is a continuation in part of my earlier application Serial No.- 7 05,810, filed April 11, 1924.

The spool illustrated in the drawings is provided with a cylindrical tube or core 2, usually made of paper or other fibrous material on which the thread is wound, and heads 4 secured on the ends of the tube. As shown each head 4 is made of a relatively thin annular disk of fiber or other suitable material having its central aperture of substantially the same' diameter .as the interior of the core 2. The inner face of each head 4 is preferably covered by an annular disk 6 of felt or similar material to insure a close eter of the annular portion 10 is slihtly greater than the inner diameter of the ead 4 and tube 2, and the lugs 12 are each'provided with an arrow-shaped inner end-forming lateral projections or teeth 14 on its longitudinal edges. The lugs 12 are bent upwardly on lines 16, spaced a slight distance inwardly from the inner periphery of the annular portion 10, to a position so that.

each of them is inclined inwardly at an obtuse angle to the plane of the portion 10, and the projections or teeth 14 are bent outwardly, the teeth 14 of each lug 12 being inclined slightly away from each other. The lower edges 18 of the teeth 14 of each *lug 12 are arranged substantially perpendicular to the plane of the lug, and the upper edges of the teeth are inclined downwardly and outwardly to the lower edges so as to provide sharp pointed ends. Also in the illustrated construction the Aannular portion 10 is formed with a series of four equally spaced V-shaped teeth 20 adjacent its outer edge which are bent upwardly.

In securing each head 4 to the core 2, the head is placed over the lower end of the core, and then the securing device is applied by passing the lgs 12 through the central aperture in the head and into the lower end of the core, so as to position the annular portion 10 of the securing device against the lower outer margin of the central aperture of the head. A cylindrical tool or mandrel of substantially the diameter of the Vinterior of the core, is then passed through the annular portion 10 of the device and forced a distance into the lower end of the core I of the cgre, and cause the teeth 1a to be firmly embedded or pressed into the material: of the core. By having the inner diameter of the anunlar portion 10 slightly larger than the inner diameter of the head 'tand core 2, and by the use of a tool that will f closely fit the interior of the core 2, the lugs are brought tightly over the inner edge of the head 4 and are forced tightly and in fact embedded in the inner surface of the core. The shape and relative inclination of the teeth of each lug causes them to be firmly anchored inthe material of the core-.f

When a head has thus been applied to the core, the lugs 12 and their teeth 14 cooperate With the .annular portion 10 to securely and firmly hold the head on the' end of the core, and the teeth 20 on the annular portion to firmly hold the head from any tu'rning movement on the core.

In certain cases it is desirable to insert a flanged plug 22 in either one or both ends of the core. As shown this plug is provided with a; slightly tapering shank 24 and a flange 26. The shank of the plug is of a suitable diameter to permit it to be forced p into' and tightly engage the end of the spool core-,with the flange extending over and tightly engaging the annular portion 10'` of the securing device. The plug may be permanently held in place by glue and by a. nail or tack 28 driven through the core .and into the shank of the plug. The lu in addition to strengthening the end o the core and serving as a support for the spool, firmly holds the lugs 12 and their projecting teeth in place, and the annular portion 10 and the head of the spool against the end of the core.

As will be evident to those skilled in the art, my invention permits of various other modifications without departing from the` spirit thereof or the scope of the appended claims.

What I claim is:

1. A spool comprising a tube, a head for one end of the tube compnising an annular disk, and means for securing the disk to said end of the tube in fixed position relatively thereto comprising a member having an annular portion having a plurality of lugs projecting upwardly from its inner periphery, each of said lugs having an outward projection adjacent its end embedded in the inner surface of said tube, the ends of said lugs bein passed through said annular disk, inserte in said end of the tube, and then pressed outwardly against the inner surface of said tube to cause said projection to be pressed into said inner surface said member engaging said disk so as to hold it-fixed relatively. to said tube.

2. Aspool com rising a tube, a head for one end of the tu comprising an annular ldisk, land means for. securing the 130 said end of the tube in fixed position relatively thereto comprising a member formed from sheet metal having an annular portion having its inner periphery of greater diameter than the inner diameters of the disk and tube, and a plurality of lugs rojecting upwardly from the inner perip ery of said annular portion, each havingoutwardly extending tooth-like projections on its longitudinal edges adjacent its end and embedded in the inner surface of said tube, the ends of said lugs being passed through said annular disk,,inserted in said end of the tube, and then spread outwardly soas to cause said projections to be embedded in the inner surface of said tube said member engaging said disk so as to hold it fixed rel'- atively to said tube.

3. A spool comprising a tube, a head for one end of the tube comprising an annular disk, and means for securing the disk to said end of the tube in fixed position relative thereto comprising a member formcd from sheet metal having an annularportion having its outer periphery of greater diameter than the inner diamet-er of the tube, and a plurality of lugs projecting up- 'Wardly from the inner annular portion, each having outwardly extending tooth-like projections on its longitudinal edges adjacent its end and embedded in the inner surface of said tube, the

g ends of said lugs being passed through said annular disk,'inserted in said end of the tube, and then spread outwardly so as to cause said projections to be embedded in the inner surface of said tube, said annular periphery of said member having teeth engaging said head i and held in engagement therewith by said tooth-like Irojections.

4. A spool comprising a tube, a head for one end of the tube comprising an annular disk, and means for securing the disk to said end of the tube in fixed position relative thereto comprisin va member formed from Sheet metal having an annular portion having its inner periphery of greater diameter than the inner diameters of the disk and tube, and a plurality of lugs projecting upwardly from the inner periphery of said annular portion, at 'least oneof said lugs having an outward projection adjacent its end and embedded in the inner surface of said tube, the ends of said lugs being passed through said annular disk, inserted in said end of the tube, and then spread outwardly against the inner surface of said tube, said projection being pressed into said surface, and a tubular plug enterin 'the end of said tube and engaging sai lugs so as to hold said projections in engagement With said tube.

'5. A spool comprising a tube, a' head for one end of the tube comprising an annular disk, and means for securing the disk to said end of the tube in fixed position relative thereto comprising a member formed from Sheet metal havin an annular portion having its outer perip ery of greater diameter than the inner diameter of the tube, and a plurality of lugs projecting upwardly from the inner periphery of said annular portion, each having 'outwardl extendin tooth-like projeetions on its ongitudina edges adjacent its end and embedded in the inner surface of said tube, the ends of said lugs being passed throu h said annular disk, inserted in said end o the tube, and then spread outwardly so as to cause said projections to be embedded in the inner surface of said' tube, and a tubular plug entering the end of said tube and engaging said lugs so as to hold said projections in engagement with said tube, said plug having an enlargement and said annular member havin teeth held in engagement with said head y said enlargement. a

. 6, A spool com rising a tube, a head for one end of the tu comprising an annular disk, and means for securing the disk to said end of the tube in fixed position relative thereto eomprising a member having an annular portion engaging the outer surface of the disk, and a portion projecting from the inner ed e of said annular portion, passed throug said disk and inserted in and attached to said end of the tube, said annular portion having a projection pressed into the outer surface of said disk and held in engagement therewith by said projecting portlon.

ROBERT K. CLARK.

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