Big Ben vs timer

Big Ben

name
  • The hour bell in the Elizabeth Tower (formerly known as the Clock Tower), adjacent to the Houses of Parliament in Westminster, London, United Kingdom. 

  • The clock tower itself. 

timer

noun
  • Any electronic function that causes a device to be able to do something automatically after a preset amount of time. 

  • A device used to measure amounts of time. 

  • A person who records the time elapsed in a sporting event. 

  • One who has done something a certain number of times. 

  • One characterized by a certain time or time frame, such as their work hours. 

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