Search International and National Patent Collections

1. (WO1978000015) RING TYPE CALIBRATING CAGE

Pub. No.:    WO/1978/000015    International Application No.:    PCT/US1978/000010
Publication Date: Fri Dec 22 00:59:59 CET 1978 International Filing Date: Sat Jun 03 00:59:59 CET 1978
IPC: B21D 51/26
B23K 11/06
Applicants:
Inventors:
Title: RING TYPE CALIBRATING CAGE
Abstract:
A ring type calibrating-cage (40) for confining a metal container shell (3) just prior to and during seam welding. The cage (40) comprises a series of strategically located rings (45, 47, 60) through which the can body (3) is fed. These rings are of narrow width reducing friction drag and being optimally positioned to accurately hold the can body in cylindrical shape with overlapped edge portions particularly when these edge portions enter into the welding nip (57).