Patent ID: 8267346

Claim:
A sheet-metal spool assembly for containing a stranded material, comprising: a cylindrical barrel having a pair of opposite ends and a longitudinal seam having a width and opposite ends formed thereon extending from one end of the barrel to the other end, a shallow V-cut formed in each end of the barrel at the seam, said V-cut having a width substantially equal to the width of the seam, a circular outer flange attached to each end of the barrel, each said circular outer flange having a central circular hub opening for receiving an end of the barrel therein at a juncture thereof, a core flange, having an arbor aperture, extending radially inwardly from the hub opening at the juncture, and a curl joint at each juncture for joining the outer flange and the flange core to each barrel end, whereby a portion only of the end of the seam at each end of the barrel is gripped in the curl joint between the end of the barrel, the flange core portion and the flange, to key the flange core portion and the outer flange to the end of the barrel to prevent circumferential movement of the flange core portion and flange on the barrel.