1. 
   Yale lock
   (from the article `lock`) In 1848 a far-reaching contribution was made by an American, Linus Yale, who patented a pin tumbler lock working on an adaptation of the ancient ... American inventor and designer of the compact cylinder pin-tumbler lock that bears his name.[2 related articles]
   Found op http://www.britannica.com/eb/a-z/y/2
   
   
2. 
   yalelock
   1) Security device since 1851
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/yalelock/1
   
   

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