jury-rig vs oil rig

jury-rig

noun
  • An improvised rigging. 

verb
  • To make an improvised rigging or assembly from whatever is available. 

  • To create a makeshift, ad hoc solution from resources at hand. 

  • To rig a jury; to engage in jury rigging (that is, jury tampering); to improperly influence jurors, or the selection of jurors, such that they return a certain result. 

oil rig

noun
  • A rig, consisting of platform and machinery, used to drill for oil and other petroleum products like natural gas. 

How often have the words jury-rig and oil rig occurred in a corpus of books? (source: Google Ngram Viewer )