Junkunc: Difference between revisions
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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. | =Junkunc= | ||
'''John Junkunc''' was a railroad employee who had a habit of losing keys. He then designed and made a [[combination |combination lock]] so he could avoid the problem of losing keys. | |||
One of his early versions next to a quarter for scale: | One of his early versions next to a quarter for scale: | ||
<center><gallery> | |||
File:Junkunc small combination padlock 1.JPG| Locked | |||
File:Junkunc small combination padlock 2.JPG| Unlocked | |||
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. | |||
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). | |||
==See Also== | |||
* [https://patents.google.com/patent/US1607758A/en Patent US1607758A] | |||
[[ | [[Category:American Lock]] | ||
[[Category:Combination locks]] | |||
[[Category:Lock Manufacturers]] | |||
[[Category:Padlocks]] | |||
[[Category:People]] | |||
Latest revision as of 12:06, 25 March 2021
Junkunc
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:
Locked
Unlocked
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).
