Anode lining system

In an aluminum reduction cell having a continuous selfbaking anode of substantially rectangular shape, permanent casing means for the anode, support means for the casing means, a plurality of side entry electrical contact pins entering the anode on opposite sides thereof through clearance holes in the support means and corresponding slots in the casing means, the slots being elongated vertically to allow for adjusting the anode position within the casing means, and an inner lining for achieving a slippage between the anode and the casing means when adjusting their relative positions, the lining being disposed between the anode and the casing means along each anode side and end and having the contact pins punched through the portions thereof along each anode side, the improvement wherein:

• the lining is formed from a plurality of strips of flexible sheet material which extend downwardly between the anode and the casing means, with adjacent strips in laterally overlapping relationship, there being a plurality of side strips for each anode side, at least one end strip for each anode end and one corner strip for each anode corner;
• and
• the lining is supplied in continuous lengths by a rotatably mounted roll of said sheet material for each of said strips, the rolls respectively associated with side and end strips being placed to provide for feeding adjacent strips along a common pass line with their edges overlapping, each roll associated with an anode corner strip being mounted for rotation on a diagonal axis and including means for folding said strips as it leaves said roll to form side and end portions of said strip which overlap the adjacent side and end strips.