| Job Title |
Thermometer Maker |
| Job Description |
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. Turns Handle To Create
Vacuum In Tank That Causes Fluid To Fill Tubes. Holds End Of
Filled Tube Over Gas Flame Until Glass Changes Color. Inserts
Air Bulb Into Unheated End Of Tube And Squeezes Air Into Tube To
Form Thermometer Bulb. Rotates Bulb In Preset Micrometer To
Attain Specified Size. Holds Open End Of Tube Over Flame To
Soften Glass And Seal Tube. Immerses Tube In Temperature
Controlled Hot And Cold Water Tanks To Determine Reference Point
For Calibrating Tubes. Scribes Marker At Reference Points, Using
File. Heats And Cools Water In Tanks To Specified Temperatures,
Using Heater, Ice, And Master Thermometer. May Blow And Shape
Glass Tubes Used To Make Thermometers [glass Blower, Laboratory
Apparatus (glass Products; Inst. & App.) 772.281-010].
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