US2250564A - Spool - Google Patents

Description

July 29, 1941.

R. ATWOOD SPOOL Filed Jan. 12, 1940 m '2 llllllllllllll-llb" J INVENTOR KW JWMIZW Patented July 29, 1941 SPOOL Rawson Atwood, New York, N. Y., assignor to Decorated Metal Manufacturing Company, Inc., Brooklyn, N. Y., a corporation of New York Application January 12, 1940, Serial No. 313,486

4 Claims.

This invention relates to improvements in spools and more particularly in textile spools.

It is an object of the invention to provide improved means for fastening a spool barrel and ends together, minimizing the tendency, particularly in large spools, of the fiber wound thereon to spread or bow the end flanges away from the barrel.

It is a further object of the invention to provide, in conjunction with the improved fastening means, reinforcement for the barrel of a spool made of pasteboard and stamped metal, or similar materials.

A further object of the invention is to provide, by means of an improved end fastening construction, a spool which minimizes thread trapping. In this aspect the invention constitutes an improvement of the construction disclosed in my copending application Ser. No. 290,157, filed August 15, 1939.

With these and other objects 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 first be described in connection with the accompanying drawing and then pointed out more particularly in the appended claims.

In the drawing:

Fig. 1 is a side elevation of a spool embodying the invention in a preferred form and with parts progressively broken away to display the construction also in a central vertical section;

Fig. 2 is a plan view of the spool of Fig. 1 showing the and construction;

Fig. 3 is a cross section taken on the line 33 of Fig. 1;

Fig. 4 is an exploded view showing the parts prior to final assembly of the barrel and ends; and

Fig. 5 is an enlarged fragmentary view of a portion of Fig. 1.

Referring to Figs. 1 and 2, the spool comprises a barrel l of pasteboard or like material to which are fastened spool ends 2 and 3, preferably made of sheet steel, the latter being provided with anti-thread trapping liners 4 and 5 rolled into the barrel ends as at 6 and 1. The spool ends are formed with upset annular grooves 8 adapted to receive the ends of the barrel and also the ends of a metal fastening and reinforcing tube 9 positioned within the barrel. As best shown in Figs. 2, 4 and 5, the metal of the spool ends is pierced with apertures l0 spaced around the inner edges of the annular grooves 8 and the central fastening member 9 is formed with fastening tabs H (see Fig. 4) adapted to pass through the apertures l0 and to be bent over as shown in Figs. 1, 2 and 5 to secure the spool ends to the barrel. The fastening member 9 will normally take the form of a tube with a butt seam along the line I2 and the seam is preferably positioned so as to pass through one of the tabs H at each end so that these tabs, when passed through the respective apertures I ll, tend to hold the tube together at the seam l2. The groove 8 on each end, 2 or 3, is made wide enough to accommodate both the barrel I and fastening mem-' ber 9-and the compressing action of the groove upon the barrel is otherwise similar to that to be found in similar constructions not employing the fastening member 9.

The invention is illustrated as applied to a spool in which the end 3 is of considerably greater diameter than the other end 2, but is equally applicable to spool constructions in which the ends are of the same diameter. The invention is of greatest utility with relatively large spools having wide ends and used with relatively fine, smooth fibers which flow and generate considerable pressure against the spool ends. The tolerance in the traverse between ends of the spool is typically of the order of of an inch so that any substantial springing apart in the spool end is extremely undesirable. With heavy thread pressures upon'the flange and relatively wide flanges, it will be found that when it is attempted to fasten the ends upon the barrel with 'a central eyelet or rivet such as is illustrated by the abovementioned application, the thread pressing against the surface of the ends has a very considerable leverage, since the spool ends are held together only near their centers. By employing the fastening member of the present invention, however, I am able to fasten the ends to the barrel at a number of points spaced relatively far from the center of the ends and substantially in line with the barrel, thus reducing the leverage, or bending moment due to a given thread pressure and greatly reducing any springing of the ends away from the barrel.

With regard to thread trapping, the use of the liners 4 and 5 rolled into the barrel, as illus- I the slight telescoping of the liners along the barrel as the ends are sprung away from each other by the thread, yarn or fiber upon the spool. The fastening member of the invention, by reducing the springing of the ends under pressure, correspondingly reduces telescoping of the liners along the barrel and accordingly still further reduces thread trapping. The fastening member 9, of tubular form and fitting snugly within the barrel l, furnishes reinforcement of the barrel in addition to securing the ends thereto and the invention is, accordingly, in this respect an improvement upon that disclosed in my copending application directed to the tubular reinforcement of textile spools. The method of assembly of the present invention will be readily understood and involves bringing together the barrel assembly, including the fastening element 9 and barrel I as shown in Fig. 4, and end assemblies, including the ends 2 and 3 together with their liners 4 and 5. The ends are now firmly driven onto the barrel, compressing the barrel ends within the grooves 8 and bending the tabs I over into the position of Figs. 1, 2 and 5, so as to hold the ends and barrel securely together. The next operation involves rolling the liners into the barrel adjacent its ends, thus completing the assembly.

The spool illustrated is shown as having cen tral openings 13 in its ends formed by turning flanges or collars M in the material thereon and adapted to receive an arbor, spindle or the like, If desired, a central rivet or eyelet (not shown) may be employed similar to that shown in my above-mentioned application so as to provide a tubular member surrounding the central opening in the spool and serving as a guide for an arbor or similar member to assist in placing the spool upon the same.

What is claimed is:

1. In a textile spool, and in combination, a tubular barrel of pasteboard or like material, spool ends for said barrel, a tubular fastening member fitting within the said barrel and attached to said spool ends at points substantially in alinement with the inner surface of said barrel and a relatively thin anti-thread-trapping lining attached to each of the said spool ends and including a collar extending along the barrel from the said spool end and substantially flush therewith.

2. In a textile spool, and in combination, a tubular barrel of pasteboard or like material, spool ends for said barrel, the material thereof defining upset annular grooves in alinement with the said barrel, and a tubular fastening member fitting within the said barrel and attached to said spool ends at points substantially in alinement with the inner surface of said barrel, the said barrel and fastening member being received and compressed within the said grooves.

3. In a textile spool, and in combination, a tubular barrel of pasteboard or like material, spool ends for said barrel, the material thereof defining upset annular grooves in alinement with the said barrel, a tubular fastening member fitting within the said barrel and attached to said spool ends at points substantially in alinement with the inner surface of said barrel, the said barrel and fastening member being received and compressed within the said grooves, and a relatively thin anti-thread-trapping lining attached to each of the said spool ends and including a collar extending along the barrel from the said spool end and substantially flush therewith.

4. In a textile spool, and in combination, a tubular barrel of pasteboard or like material, spool ends for said barrel, a tubular fastening member fitting within the said barrel and attached to said spool ends in substantial alignment with the inner surface of said barrel and a relatively thin anti-thread-trapping lining attached to each of the said spool ends and including a collar extending along the barrel from the said spool end and substantially flush therewith.

RAWSON ATWOOD.

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