A professional who operates machines to mold and cut composition rubber rollers used to coat or lithograph tinware. Respnsibilities include:

• Dumps cold rubber in melting reservoir of machine and turns steam valves to melt rubber.
• Starts agitator to stir melting rubber.
• Places core of roller in molding chamber of machine, using hoist.
• Bolts plates on ends of molding chamber, using wrench.
• Turns air valve to force melted rubber into mold, and turns water valves to cool mold.
• Removes molded roller and places it in chuck of cutting machine.
• Installs knives on cutting bar.
• Positions bar and turns crank to rotate chuck and cut circumference or end of roller.
• Replaces worn felt coverings on padding rollers.
• Slips felt jackets over roller core and sews end of felt around roll, using needle.
• Sorts and stacks rolls in rack.
• Records number and type of rolls, cores, and materials used, shipped, or received.