Inventors:
William R. Smith - Rockdale TX
Assignee:
Aluminum Company of America - Pittsburgh PA
International Classification:
B22D 4300
Abstract:
An improved and simplified device for removal of deposits on furnace walls is disclosed which can be operated by a single individual. The device is characterized by rotating scrapers driven by internally-contained air-powered motors. The horizontally opposed scrapers are journalled on each end to pairs of arms which are connected together at a pivot spaced from the journals. Air cylinders, powered from a common source with the air motors, spread the arms apart simultaneously with activation of the air motors to bring the rotating scrapers in contact with the furnace walls.