Berliner key

The key Berliner is a type of key of Serrure very particular and specific to the town of Berlin in Germany. Its characteristic comes owing to the fact that it has two Pannetons (left intended to actuate the bolt of the lock). After having unbolted the lock, it is necessary to recover the key of the other with dimensions of the door and to close again this one. Also called “Schließzwangschlüssel” or key to force with French closing. This key had indeed been invented to oblige the inhabitants of a housing to close again the door after having opened it. The mechanism is such as it is impossible to withdraw the key once the unbolted bolt, one is thus obliged to close the door in order to extract the key from it.

The key was invented by the Berliner metal worker Johann Schweiger and was developed by the company Albert Kerfin & Co as from 1912. Today this type of lock tends to disappear but remains however a very appreciated memory of the Berliners.

Bonds

the Berliner key presented in the emission Karambolage of Arte on March 26th, 2006

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