machinery vs machinist

machinery

noun
  • The machines constituting a production apparatus, in a plant etc., collectively. 

  • The collective parts of something which allow it to function. 

  • The working parts of a machine as a group. 

  • The literary devices used in a work, notably for dramatic effect 

machinist

noun
  • A constructor of machines and engines; one versed in the principles of machines. 

  • One skilled in the use of machine tools for fashioning metal parts or tools out of metal. 

  • A person who operates machinery. 

  • A person employed to shift scenery in a theater. 

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