US1991435A

US1991435A - Metallic spool

Info

Publication number: US1991435A
Application number: US685913A
Authority: US
Inventors: George F Walter
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1933-08-19
Filing date: 1933-08-19
Publication date: 1935-02-19
Anticipated expiration: 1952-02-19

Description

Feb. 19, 1935. F, ALTER 1,991,435

METALLIC SPOOL Filed Aug. 19, 1933 ATTORNEYS head then :being performed with arsimple spin- Patented Feb. 1 9, 1935 ICE i i George F;

"3 v g I Walton-Brooklyn, N. Y., assignor to 1 v "American can CompanmNe-w York, N. Y., a

- corporaiionof-Newjersey I Y AnnlicationffAugust t, rose, Serial No. 685,913

6 Claims. 4011242 4123) n present invention relates to metallic spools tor. adhesive tape, medicinal bandages and the I likaand has for its object :the improvement and simplification of their construction, such-metal- 5 spools comprising generally a mainbody or core partland a pair of end pieces or heads secured to the ends ofthe. core. t

The present invention. contemplates utilizing struck out spacing members orridgesin theeore ofthe spool as backing up or :folding elements .tor the spool heads and the side seamof'the .core part may also beutilizedin this capacity. The principal object of the present invention isthe provision of a spool core. .andspool heads poi simplified construction, :the core wall having projecting s acing members. or rridges andrthe ,more longitudinal ridges v16 struck outwardly ends of these ridges providinghabutments for rthespool heads thus making a :rigid .and "simple holding construction forsthe spool parts. 1 t

v V The present invention lhasior .a further object the provision of a spool assembly which maybe imaded with a wound .reel. of tape or1 other suitable material-priorto the: final; attachment of one of the spool heads, this final attachment of ning-cor .bending operation. V g a Theprojecti-ng ridges of the spool besides providing for the .rigid holdingsconstruction of parts strengthen the core and also present .antiefrictional supports for thereel of tape; thusfaci-li- #:tatingits unwindingrfo-r tuse. .1 o v if:

Numerous other objects and advantages of the invention will .be apparent as it is better understood from the following description, which,

sta'ken .in' connection, with the accompanying drawing ,1 discloses :a preferred embodiment there- Figure l islanv exploded, perspective view of an incompleted spool embodying the present invention and also showing a reel of material in position for assembly;

Fig. 2 is a longitudinal sectional view taken through the loaded spool, showing one of the spool heads firmly fixed to the spool core and the other head in position for final attachment;

Fig. 3 is a View similar to Fig. 2 partly broken away and illustrating the core and head after final attachment;

Fig. 4 is a transverse sectional view of the core taken substantially along the line 4-4 in Fig. 3;

Fig. 5 is an enlarged, fragmentary, sectional view taken through one end of the core and illustrating the loaded reel on the core and the 5 head in position preparatory to final attach- 5 ment; and

Fig.4 6 ,isa, view similar to Fig. illustrating the head interlocked in. its final engagement with the core. r g

As illustrated in the-drawing the embodiment of; the present invention comprises a tubular or cylindrical core 11 which may be formedfrom a metal blank having its ends securedto ether in aside seam 12. This side seam comprises a central spacing section or look seam portion 13 which is pressed outwardly beyond the ,sur-

faceof the core as bestshown in Figs. 1 and 4.

The ends of the side seam comprise-flush portions 14 and the ends of the lock seam part '13 constitute-abutting edges 15 which .are a short I distance: from the ends of the core l5 The core 11 may alsobeprovided 'thlone or i from its. cylindrical wall. These ridges are the same length and-extend substantially in-the same manner as the lock seam part 130i; the

side seam.;- The ends of the ridges constitute abutting edges 17 which are in the same transverse plane as the abutting edges 15 of the side adjacent eachaperture 23 is turned outward into an axially extending flange 24 which is merged into an annular outwardly pressed portion 25 .in the head wallas best illustrated in Figs. 5 and 6.

In forming the spool one of the heads21isfirst positioned on one end of the core ll, thepore-end extending into. the aperture 23. The head is pushed back on the coreuntil the wall of the annular part 25 is broughtinto engagement with t e. abutt .ends-1. ..;l. 9i theg d s am an spacing ridges. The outer end of the core is then curled over or bent back over the projecting flange 24 of the head as at 26 in Fig. 2.

This interengagement of the end of the core with the flange of the head provides an interlocked joint or seam 2'? for the one head of the spool. This much of the assembled spool is illustrated onthe left of Fig. 1. The tape. or other material for which the spool is designed has previously been wound in reel form 31 (Figs. 1 and 2) in the usual manner as over a fibre tube 32.

The tube 32 is of inner diameter slightly greater than the outside diameter of an imaginary circle passing through the outer surface of the projecting parts of the side seam 12 and of the 5 ridges 16. The reel 31 is pushed over the free end of the core and the inner tube 32 encircles the projecting side seam and the ridges.

The opposite head 21 is then slipped over the free end of the core 11 (Figs. 2 and 5) with its flange 24 extending outwardly over the end of the core. of the annular part 25 is in engagement with the abutting edges 15, 17. of the

parts

12, 16. The outer end of the core need then be only curled over or spun back as at 33 (Figs. 3 and 6) to provide an interlocked seam joint 34 which holds the head wall solidly against the abutting spool ridge edges. 7 a

This construction of core and head thus pro vides for a rigid yet simple form of support for the heads which rest at all times against the edges of the side seam and the spacing ridges. The

interlocked seams

27, 34 of the spool are simple to make being a mere spinning of the core ends. The spacing ridges and these spun core ends prevent any sliding movement of the heads relative to the core.

The reel 31 is free to turn on the core 11, the outer engaged surfaces of the

parts

12, 16 against the inner wall of the tube 32 being of sufiicient extent to hold the reel in rotating position within the epool but not large enough to present frictional resistance against the free turning of the tube on the core. The tape and tube are of slightly less width than the distance between the spool heads held by the spacing members for this purpose.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will beapparent that various changes may be made in the form,

"construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim: I 1. A metallic spool, comprising a core having longitudinal struck out spacing ridges extending I for substantially the length of the coreand terminating short of an end of the core, and a spool head positioned on the end of said core'and abutting the edges of said ridges, the end of said core being interlocked with said head to hold it firmly I against the said ridge edges. i

the adjacent ends of said core being interlocked In this position the head wall at the basewith the said heads and holding them firmly against the edges of said core ridges.

3. A'metallic spool, comprising a cylindrical core having a side seam formed with a central locked portion and two end flush portions, the former extending out beyond the cylindrical wall of said core and terminating in abutting shoulders located adjacent to but short of the core ends, and spool heads positioned on the ends of said core and resting against the said abutting shoulders, the ends of said core being interlocked with said heads to hold the parts in fixed relation.

4. A metallic spool, comprising a cylindrical core-having a side seam formed with a central locked portion and two end flush portions, the former extending out beyond the cylindrical wall of said core and terminating in abutting shoulders located adjacent to but short of the core ends, said core also having longitudinal struck out spacing ridges also extending out beyond the cylindrical wall of said core and "terminating in abutting edges, and spool heads located on the ends of said core and resting against the v abutting shoulders of said side seam and against the abuttingedges of said longitudinal ridges, the ends of said core being interlocked with-said heads to hold the parts in fixed relation.

5. A metallic spool, comprising a core having longitudinal struck out spacing ridges extending from one spool head to the other so as to form supports for a reel tube and terminating short of the ends of the core, and spool heads having central apertures surrounded by right angled H fiangespositioned on the ends of said core with the said flanges resting on the core and the heads abutting'the end edges of the ridges, the ends of said core extending beyond said heads and being curledback and over the said flanges for holding'short of its ends, and also having a side seam "formed with a central locked portion and two end flush portions, the locked portion also terminating short of the ends of the core, and spool heads having inner flanges and adjacent annular outwardly pressed parts and located on the ends of said core with said flanges in engagement therewith, the abutting end edges of said ridges and said lock seam portion-resting in said outwardly pressed parts, the ends of said core being bent said ridges and the lock portion of the said side seam.

GEORGE F. WALTER.