clothes iron vs smoothing iron

clothes iron

noun
  • A hand-held device with a heated flat metal base used to smooth out wrinkles in clothes; an iron. 

smoothing iron

noun
  • A heated appliance that is used to smooth clothing and other items after washing and (usually, partially) drying. 

How often have the words clothes iron and smoothing iron occurred in a corpus of books? (source: Google Ngram Viewer )