C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
204/203
C25C 3/14 (2006.01) B25D 17/02 (2006.01)
Patent
CA 1150189
A B S T R A C T Device and method for breaking open the solidified crust of electrolyte on an electrolytic cell, in particular a cell for producing aluminum. At least one projection is provided on the lower part of the shaft of a chisel used on a crust breaker. After breaking through the crust, the chisel is lowered further at least until the lowest projection or projections reaches/ reach the lower half of the crust. - 1 -
359982
Arnold Erwin
Friedli Hans
Gut Edwin
Sherman
Swiss Aluminium Ltd.
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