What is "waldos"

Usage examples of "waldos".

Working the waldos from inside the Bug, the operator could do practically anything his own hands could do.

Then the damaged crystal had to be lifted out of its cradle using waldos manipulated by two people, carefully edged to the loading chute, eased into that, and dropped into the protective cartridge that would carry it away for disposal.

The replacement crystal had to be lifted into the core, boosted slowly into the catching manipulators of the waldos, and then gently maneuvered into the main cradle.