kissing gate vs wicket gate

kissing gate

noun
  • A small gate, used instead of a stile at the boundary of a field, that swings in a U- or V-shaped enclosure and touches (kisses) each of two gateposts, allowing one person at a time to pass through, but being too complex for livestock to operate. 

wicket gate

noun
  • A small gate or door, especially one built into a large one. 

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