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Job Description:

  • 1) Fills, shapes, seals, and marks glass tubes to fabricate thermometers, using vacuum tank, micrometer, gas burners, and handtools: Places thermometer tubes in vacuum tank filled with colored liquid and secures tank lid.

  • 2) Turns handle to create vacuum in tank that causes fluid to fill tubes.

  • 3) Holds end of filled tube over gas flame until glass changes color.

  • 4) Inserts air bulb into unheated end of tube and squeezes air into tube to form thermometer bulb.

  • 5) Rotates bulb in preset micrometer to attain specified size.

  • 6) Holds open end of tube over flame to soften glass and seal tube.

  • 7) Immerses tube in temperature controlled hot and cold water tanks to determine reference point for calibrating tubes.

  • 8) Scribes marker at reference points, using file.

  • 9) Heats and cools water in tanks to specified temperatures, using heater, ice, and master thermometer.

  • 10) May blow and shape glass tubes used to make thermometers.




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End Of Job Description for: "THERMOMETER MAKER"
DOT:   710.681-026

Job Number: 11146