A professional who tends beaters and vats that prepare furnish for making paper, roofing felt, and related products. Respnsibilities include:

• Turns valves to charge vats with specified amounts of slush pulp, fillers, size, and liquid chemicals.
• Weighs and dumps dry ingredients into vat according to formula.
• Dips furnish sample from vat for laboratory testing.
• Removes plug of vat to dump furnish into beater chest or starts pump to transfer furnish from vat to storage.
• Observes vat and beater operation and notifies beater engineer of malfunction.
• Cleans vat with water and hose and scrapes out adhering matter.
• May truck materials from storage.
• May weigh, mix, and cook dyes.
• May chip rust, scale, and other deposits from machine rolls, using airhammer.
• May truck sheet pulp and other materials from stockroom.