Patent ID: 8302284
Filing Date: 2012-11-06
Classification: B21D,Y10T

Abstract:
1. An apparatus for securing at least one end cap including an end cap flange to a shell including a shell flange by forming a lip portion comprising the end cap flange and the shell flange into a lock seam portion in which the end cap flange and the shell flange are engaged with each other, the apparatus comprising: an elongate tool element at least partially defined by a central axis thereof and rotatable about the central axis, the tool element being adapted for receiving said at least one end cap thereon; said at least one end cap being adapted to receive at least part of the shell thereon to locate the shell flange in a predetermined position relative to the end cap flange; a plurality of roller subassemblies for forming the lip portion into the lock seam portion, each said roller subassembly comprising a forming roller engageable with the lip portion while the tool element rotates; each said roller subassembly additionally comprising an arm on which said forming roller thereof is rotatably mounted, and a support mechanism for positioning the arm to engage the forming roller with the lip portion; a hydraulic system comprising: