contraption vs equipment

contraption

noun
  • Any object. 

  • A machine that is complicated and precarious. 

equipment

noun
  • Any items used in equipping something or someone, for example things needed for an expedition or voyage. 

  • The act of equipping, or the state of being equipped, as for a voyage or expedition. 

  • The male genitalia. 

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