A professional who controls continuous process equipment to age alkali cellulose for use in cellophane manufacture. Respnsibilities include:

• Takes wet and dry-bulb temperature readings in air ducts through which cellulose will pass on conveyor and calculates humidity in ducts, using graphs.
• Reads instruction tables to determine setting of conveyor screws and belts under existing humidity conditions.
• Turns screws to adjust conveyor speed to regulate length of aging cycle, and to set humidistat that maintains specified humidity in ducts.
• Records operating data.