erector vs schemer

erector

noun
  • A person who, or a device which erects. 

  • Any of several muscles that make parts of the body erect. 

  • A vehicle used to support a rocket for transportation and for placing the rocket in an upright position within a gantry scaffold. 

  • An attachment to a microscope, telescope, etc. for making the image erect instead of inverted. 

schemer

noun
  • One who is given to scheming. 

  • One who plots or schemes, who formulates plans. 

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