conveyor vs escalator

conveyor

noun
  • Anything that conveys, transports or delivers. 

  • March 8 2023, Chris Howe, “Building the platform for Old Oak Common's platforms”, in RAIL, number 978, page 60 

  • A person that conveys, transports or delivers. 

  • A mechanical arrangement for transporting material or objects, generally over short or moderate distances, as from one part of a building to another.#* 

  • The 1.7 mile-long conveyor system was commissioned in November 2022, and will remove one million lorry movements from the roads around West London. 

escalator

noun
  • Anything that escalates. 

  • An escalator clause. 

  • A motor-driven mechanical device consisting of a continuous loop of steps that automatically conveys people from one floor to another. 

  • An upward or progressive course. 

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