Tends oil-fired kettles that melt and fume antimony to make antimony oxide: Charges antimony crystals into melting kettle with hoist, and fires burners.
Regulates temperature according to thermometer readings and color and appearance of metal. Skims slag from surface of kettle. Connects trough from melting to fuming kettle, and pours metal into trough by tilting kettle. Heats metal to specified temperature to vaporize antimony which is drawn to baghouse and condensed as oxide dust. Fills buggy with antimony oxide from hoppers, and weighs filled buggy on floor scale. Empties buggy onto conveyor leading to rotating drum in which oxides from different charges are blended. Transfers blended dust to conveyor leading to automatic bagging machine. Determines antimony content by casting sample into rod of specified size, weighing it, and referring to standard chart.
