Converter dolly is an axle, or two, supporting a 5th Wheel, with a tow bar attached. For pulling a semi trailer behind a truck, or another trailer. It converts a semi-trailer to a full trailer.
Other Database Pages Exist for this Phrase:
Converter (Converter has to do with a part of the pen ...)
Trailer (Trailer a device that makes it possible to tow a ...)
Alternative Spellings (Synonyms): Converters