US2359604A - Textile spool - Google Patents

Description

R. ATWOOD TEXTILE SPOOL Oct. 3, 1944.

Filed June 2, 1945 INVENTOR. /An/.s'a/v Hna/aaa Patented Oct. 3, 1944 TEXTILE SPOOL Rawson Atwood, Garden City, N. Y., assignor to Decorated Metal Manufacturing Company,

Inc., Brooklyn, N. Y.,

a corporation of New York Application June 2, 1943, Serial No. 489,320

8 Claims.

This invention reates to improvements in textile spools and more particularly in Winding tubes or pirns.

It is an object of the invention to provide an improved drive end construction for a flangeless pi-rn or winding tube.

A further object of the invention is to provide an improved drive end construction in conjunction with a tubular pirn or windingv tube having a relatively thin wall.

A still further object of the invention is to provide an improved drive end construction in conjunction with suitable reinforcing structure for the tube barrel.

Another object of the invention is to provide an improved winding end construction for such a tube.

With the foregoing objects and others which will appear in the following full description in mind, the invention consists in the combinations and arrangements of parts and details of construction which Will now rst be fully described in connection with the accompanying drawing and then more particularly pointed out in the appended claims.

In the drawing:

Figure 1 is a central longitudinal section of a winding tube embodying the invention inpreferred form and showing the parts in an intermediate stage of assembly;

Figure 2 is a side View of a completed winding tube, with parts progressively broken away to show the interior structure at the ends in central longitudinal section;

Figure 3 is a top View of the tube of Figure 2;

Figures 4 and 5 are transverse sections taken respectively on the lines 4--v-4 and 5-5 of Figure 2;

Figure 6 is a lower end view of the tube of Figure 2;

Figure 7 is a central longitudinal section of the lower part of the tube of Figure 2 and is taken on the line 1-1 of Figure 2; and

Figure 8 is a view showing a modified upper or Winding end construction.

Referring now to Figures 1 and 2, the winding tube comprises the outer barrel I, preferably of pasteboard, within which is a reinforcement assembly including an outer split metal tube 2 and an inner split metal tube 3. These metal tubes are preferably arranged with the splits facing oppositely so as to preserve dynamic balance. The tubes 2 and 3 are forced outwardly against the inner surface of the barrel I by the cup-shaped brace members 4 and spindle bear- 66 ing members 5. The members into the inner tube 3 so as to 2 and 3 against the inner surface of the Pasteboard outer rbarrel I. As will be observed, the structure just described is generally similar to that disclosed in my applications, Serial Nos. 411,001 and 411,002 nled September 16, 1941, and the present invention constitutes in certain aspects an improvement thereon. The cup-shaped members 4 have central openings 6 to permit passage of a spindle and these openings are preferably of suiciently large diameter as to not engage the spindle. Each bearingl member 5 comprises a cylindrical skirt or longitudinal flange 'I which ts within the inner tube -3 and is contracted at 8 to form a tubular bearing adapted to receive and engage a spindle.

The parts thus far described are shown in assembled condition in Figure 1 and the assembly is completed by adding to the sub-assembly there shown the drive end 9 and winding end member Ill. The drive end member 3 comprises a generally cup-shaped or ferrule shaped sheet metal structure having a cylindrical ange wall II and being formed to seat upon a whorl and engage the lugs of the same. For this purpose a key-shaped 4 and 5 are driven opening is provided in the bottom of the member 9 and this extends upwardly into the ange Wall II as shown in Figures 1 and 7. The ycentral portion of the opening is preferably enlarged sufliciently so that it does not engage the spindle. The edges of the opening areformed with anges I2 which are turned axially inward, and with side fianges I3 and I4, which are turned transversely inward. These flanges serve as braring surfaces for engaging the whorl and also to strengthen and finish oil the edges of the opening. The outer paste'board barrel I is notched as at I5 (Figure 1) to accommodate the flanges I3, I4, so that the member 9 maybe driven onto the drive end of the winding tube. As will be seen from Figures l, 2 and 3, the reinforcement tubes 2 and 3 are spaced from the drive end of the barrel I by a distance substantially equal to the depth of the slot of the drive end member 9, so that the member 9' can seat against the end of the tube I and the flanges I4 be pressed down substantially ush against the bottoms of the notches I5. The drive end assembly is completed -by rolling the upper edge I6 of the flange wall II into the barrel I so as to hold the member 9 securely thereon and to provide a joint which will not trap the thread orber to be wound upon the tube. A bearing member 5 is preferably located adjacent this uppery edge I6 expand the tubes Y so as to back up -the barrel I and tubes 2 and, 3 and thus provide a solid construction.

The upper ends of the tubes 2 and 3 preferably stop short of the upper end of the barrel I and the top assembly may be completed by inserting the winding end member or end cap I and turning over and rolling in the flange I1 thereof as indicated in Figures 1, 2 and 3. The advantages of this construction, which is made possible by eliminating any spindle bearing function of the winding end member, are apparent. Winding end member In comprises a cylindrical portion Il which engages the pasteboard tube I and a further cylindrical portion I9 formed 'with nibs or projections 20 and which may receive an identification disk to be held down by the nibs. Member I0 preferably has an opening 2| to provide for access to the interior of the winding tube at the upper end when necessary, and leaving an annular flange for supporting the identification disk below the projections 20.

It is desirable to employ angeless winding tubes with spindles designed also for flanged tubes. In the case of a tube having a lower flange the thread or liber will be wound thereon so as to form a mass which extends out along the flange at its lower end but tapers toward the flangeless upper end. However.' when the fiber or thread is wound upon a flangeless tube, it must be wound with a taper at both ends, so that it is desirable to make the tube somewhat longer than a anged tube, and also to wind the thread or fiber as close to the lower end as possible. For this reason the upper bearing member 5 should be positioned within the tube at a low enough point to engage a spindle which will normally terminate considerably short of the upper end of the winding tube. This permits upward extension of the winding tube to the desired amount. At the lower end, the skirt I I need extend above the flange I4 or lug-engaging slot only sufficiently to furnish a secure fastening. In this way the maximum depth of winding 'upon the tube is provided for.

As will be noted the drive end member 9 seats longitudinally againstl the pasteboard barrel I and is positioned transversely with reference thereto. Inasmuch as this member does not engage the spindle but merely seats upon the whorl and engages its lugs, a sufilciently accurate positioning of the member is obtained. It will be noted that, while a pasteboard tube is relatively unsatisfactory as a support for holding a drive form a rounded nose or bearing surface.

The constructions illustrated are angeless pirns or winding tubes intended to be supported and driven at one end and to be left free at the other. Certain features of the invention are, however, applicable also to winding tubes which are driven or supported at both ends and also to pirns having a single flange at the drive end.

What is claimedis: A

1. In a flangeless textile winding tube and in combination, a pasteboard outer-barrel, a tubular reinforcement within said barrel, a spindle bearing within said reinforcement, and a ferruleshaped drive end member comprising a bottom seating against the end-of the said barrel and a flange wall tting ,over the end of said barrel and pressed into the same opposite said reinforcement member to fasten the drive end member to the barrel, the said drive end member having a drive slot formed therein.

2. In a flangeless textile winding tube and in combination, a pasteboard barrel having notches y at its drive end to accommodate 'the lugs of a whorl, a tubular reinforcement within said barrel and terminating short of said notches, and a ferrule-shaped drive end member comprising a bottom seating against the end of said barrel and a flange wall fittingv over the end of said barrel and pressed into the same opposite said reinforcement to fasten the drive end member to the barrel, the said drive end member having a drive slot formed in the bottom and flange wall thereof in alignment with the said notches.

3. A winding tube according to claim 2 in which the material of the said drive end member is formed into inwardly extending flanges surrounding said drive slot.

4. A winding tube according to claim 2, com prising also a spindle bearing with said reinforcement.

5. A winding tube according to claim 2, comprising also a spindle bearing within said reinforcement and in which the said drive slot includes an enlarged central portion of greater diameter than said spindle bearing to provide clearance around a spindle engaging said bearl ing.

6. In a pim, a tubular pasteboard barrel, a tubular reinforcement within said barrel, a drive end member for said barrel, spindle bearings within said reinforcement,` the said barrel extending beyond said reinforcement at its winding end, and a winding end cap attached to said barrel lbeyond said reinforcement.

'7. A pirn according to claim 6, in which thel said end cap comprises a cylindrical portion iltting within the said barrel, an annular flange below said cylindrical portion, and inward projections above said ange for holding an identiii-

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