Test tubes for airplane tires.
What does a Tube Balancer do?
Tests tubes for airplane tires to ensure conformance to balance specifications and glues patch to tube to equalize weight: Inflates tube with airhose, and fits it over hub of gravity balance wheel to locate heavy area. Determines overweight and selects balance patch to equalize weight. Hand buffs and brushes cement on area to which patch is applied. Bonds patch to area, using hand roller.