US1293443A - Spool. - Google Patents

Description

E. J. HUBBARD.

SPOOL.

APPLICATION FILED APR. 11. ms.

' 1 ,,%93A%& Patented Feb. 4, 1919.

' IN V EN TOR.

m fiTTORNEYS.

EBER J'. HUBBARD, OF BERWYN, ILLINOIS.

SPOOL.

Specification of Letters Patent.

Application filed April 17, 1918. Serial No. 229,002.

To all tii hom it may concern.-

of Illinois, have invented certain nevi and useful Improvements in Spools, of which the following is a specification.

My invention relates to spools, particularly to sheet etal spools useful in cotton and Woolen mills for holding yarn.

The object of the invention is to produce a sheet metal spool which is light, strong and rigid, and whose ends are so constructed and arranged that the spool can operate efficiently during unwinding of the yarn therefrom, and the spool can be readily inserted in a lathe or other winding machine to be refilled with yarn.

The various features of my invention are fully disclosed on the accompanying drawing in which' Figure l is a side elevational view with V one end in vertical diametral section,

' on plane 3-3, Fig. 2.

The core 5 of the spool is cylindrical and is formed by' rolling up. a rectangular piece of sheet metal whose edges have respectively the dove-tail extensions 6 and the correspondingly shaped notches 7, the tongues fitting into the notches to hold the core edges intimately and securely together. At the ends of the core are the tongues 8 which extend through the slots 9 formed in the-spool heads 10 and 11. After insertion ofirthese tongues through these slots they a e/turned over outwardly and against the 0 'er faces of the heads 10 and 11 and are preferably spotwelded to the heads. The heads are further connected together by the axially extending tube 12- whose ends 13 extend through the openings 14 in the heads and are 7 cap has a central opening 19 in line with the tube 12, and between the central .opening and the outer edge of the cap one or more slots 20 are provided -To fill in the space between the head flanges 15 and the respective cap frame I preferably utilize a filler 21 of mill board, paper, wood, or some composition, this filler being applied before the flanges 15 are formed, the filler being then intimately held in place by the flanges. The filler may be'treated by soaking in moisture protective material, such as shellac.

A spool constructed as above is light yet very strong and rigid, the formed up ends having the strength of solid heads. When a full spool is to be used it is slipped over a' spindle extending from a support, the spindle being received through the opening 19 of one cap, and the tube 12 guiding the spindle end accurately through the opening 19 of the opposite cap. If the spool supporting base is wider than the diameter of.

the spool ends then it will be engaged by the outer end of the metal flange 15. Ordinarily, however, friction contact is desired in order that the unwinding of the yarn will Patented Feb. 41, 1919.

be more or less braked or retarded. The

supporting base for the spool is then of less diameter than the spool ends so that the filler 21 only will engage with the base, and

where a wood, paper, or composition filler .engages with a metal supporting base, the

friction will efliciently retard the spool dur ing the unwinding operation. It will be noted that the outer faces of the caps are slightly within the outer faces of the fillers so as not tointerfere with the frictional engagement of the fillers with the supportingbases.

The central openings 19 of the caps serve to receive the centering points of the lathe or other winding machine and the slots 20 receive the projections or pins on the lathe for turning the spool after centering thereof.

1 do notdesire to be limited to the exact construction and arrangement shown and described as changes and modifications are no doubt possible which would still come within the scope of the invention.

I claim as follows:

1. In a spool, the combination of a cylindrical core, sheet metal ends secured to said core and having their peripheral edges" deflected outwardly and inwardly to form rounded flanges, sheet metal caps secured to the outer faces of said ends and having censtrengthening flanges, sheet metal caps se-' .cured against the outer faces of said ends .10

tral openings for receiving spindles for receiving lathe centering points, and filler ma- 7 terial between said-caps and end flanges.

2. In a spool, the combination of a cylindrical core, sheet metal ends secured to the core and having their peripheral sections deflected outwardly and inwardly to form caps being inwardly a distance from the outer faces ofsaid filler material.

3. In a spool, the combination of a sheet metal cylindrical core, sheet metal ends having slots therethrough, tongues at the ends of said core extendin through said slots and deflected outwar ly and spot welded against the outer faces of said ends, a tube extending axially through said core, said ends having central openings for receiving said' ends being deflected outwardly and inwardly to form peripheral flanges, and filler material between said flanges and cap frames.

4. In a spool, the combination of a cylindrical sheet metal core, sheet metal ends secured to said core and having their peripheral edges deflected outwardly and inwardly to form flanges, filler material held against said-ends by said flanges and having openings therethrough in axial alinement with said core, and sheet metal frames in said openings, said frameshavi-ng' passageways therethrough in alinement with the. core axis for receiving lathe centering points.

In witness whereof I hereunto subscribe my name this 12th da of April, A. D. 1918.

' EB R J. HUBBARD.

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