A professional who tends mule-spinning frame that spins roving into yarn and winds yarn onto bobbins. Responsibilities include:

• Creels machine and threads roving through guides, between feed rollers, and onto bobbins.
• Starts machine and patrols work area to detect breaks in roving.
• Stops machine and pieces up broken roving ends.
• Turns crank to increase or decrease tension of faller wires on yarn according to fullness of bobbins.
• Doffs full bobbins from machine and replaces them with empty bobbins.