Junkunc: Difference between revisions

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One of his early versions next to a quarter for scale:
One of his early versions next to a quarter for scale:


[[File:Junkunc small combination padlock 1.JPG]]
<center><gallery>
 
File:Junkunc small combination padlock 1.JPG| Locked
[[File:Junkunc small combination padlock 2.JPG]]
File:Junkunc small combination padlock 2.JPG| Unlocked
 
File:Junkunc small combination padlock 3.JPG
[[File:Junkunc small combination padlock 3.JPG]]
</gallery></center>


These early Junkunc combination padlocks had gates that lined up directly with the shackle.  If someone were to try decoding the combination like a modern lock by pulling the shackle while dialing, the 'wheels' would become deformed as well as the shackle.   
These early Junkunc combination padlocks had gates that lined up directly with the shackle.  If someone were to try decoding the combination like a modern lock by pulling the shackle while dialing, the 'wheels' would become deformed as well as the shackle.   


Normally, this problem can be identified by a dial that binds and is very hard to turn at a certain point, but turns freely for the rest of the dial rotation.  (Similar to a bent spindle on a safe lock).
Normally, this problem can be identified by a dial that binds and is very hard to turn at a certain point, but turns freely for the rest of the dial rotation.  (Similar to a bent spindle on a safe lock).

Revision as of 21:04, 29 January 2015

John Junkunc was a railroad employee who had a habit of losing keys. He then designed and made a combination lock so he could avoid the problem of losing keys.

One of his early versions next to a quarter for scale:

These early Junkunc combination padlocks had gates that lined up directly with the shackle. If someone were to try decoding the combination like a modern lock by pulling the shackle while dialing, the 'wheels' would become deformed as well as the shackle.

Normally, this problem can be identified by a dial that binds and is very hard to turn at a certain point, but turns freely for the rest of the dial rotation. (Similar to a bent spindle on a safe lock).