A professional who sets up and operates automatic machine to form bulbs and other products from molten glass. Respnsibilities include:

• Installs molds, forming devices, and orifice plates, following specifications.
• Positions forming mechanisms between forehearth and lehr.
• Turns controls to regulate temperatures and pressures in forehearth and forming molds and flow of coolant on rollers.
• Verifies temperature of molten glass in forehearth, using optical pyrometer.
• Raises plunger forehearth orifice to start flow of molten glass through machine units.
• Adjusts rollers to control glass thickness, using handtools and measuring devices.
• Monitors gauges, such as temperature, pressure, machine speed, and rate of glass flow.
• Examines for variations from processing standards, using templates and gauges.