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  1. #1
    Join Date
    Jul 2014
    Posts
    268
    Country: Germany

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    Thanks. Grille gate of a vault or something like a private property?

    I assume that this is intended as a 4-lever lock deceiving the customer. The talon is the full width of the bolt and so it is the longest bit in the middle of the bolt which is actually throwing the bolt.

  2. #2
    Join Date
    Sep 2004
    Location
    Devon UK
    Posts
    3,123
    Country: UK

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    Quote Originally Posted by Cepasaccus View Post
    Thanks. Grille gate of a vault or something like a private property?

    I assume that this is intended as a 4-lever lock deceiving the customer. The talon is the full width of the bolt and so it is the longest bit in the middle of the bolt which is actually throwing the bolt.
    Maybe there was another lock which used all the bittings and another key without the extra bittings.
    one key would open both locks but one key would only open YOUR lock.

  3. #3
    Join Date
    Jun 2009
    Location
    Edinburgh
    Posts
    287
    Country: UK

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    I have a Hobbs double-sided grilegate custodial lock masterkeyed with compound levers. The belly has 2 different radii, each half the thickness of the lever, i.e. two different points on which the key step can bear. (Similar idea to masterkeyed wafers, but more difficult and expensive to make the levers, and cut the master and servant keys.) Sadly I only have one key for my lock, no way of knowing which it is.
    Mine probably dates from 1930's when the prison was built. The patent dates from 1922, according to UNION Encyc of locks.

  4. #4
    Join Date
    Jul 2014
    Posts
    268
    Country: Germany

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    Quote Originally Posted by Tom Gordon View Post
    Maybe there was another lock which used all the bittings and another key without the extra bittings.
    one key would open both locks but one key would only open YOUR lock.
    That makes sense!

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