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Miller Lock Company Combination Advice

Information about locks themselves. Questions, tips and lock diagram information should be posted here.

Miller Lock Company Combination Advice

Postby funkja » 28 May 2014 14:17

Hello!
First post, been lurking awhile.

Anywho I stopped by a garage sale the other day and saw (in my mind) this gorgeously awesome padlock that would look killer on my antique 'Hope' chest. It's a Miller Lock Co. Phila. USA combination lock and have been playing around with brute forcing it, parking, graphing etc etc.

G 241 on the clasp.

does anyone have any advice on figuring the combo for this lock?

Image

Image

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funkja
 
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Re: Miller Lock Company Combination Advice

Postby Mikeh727 » 28 May 2014 16:01

I'm guessing there isn't an 'easy' way to get into this lock. Manipulation is probably an option if you know how to do that although I'm not at all familiar with this particular lock. It seems you have some knowledge in manipulation from the sound of your post so I'd go that route.

Here's a link that seems to describe your lock at least in part. The other patents filed appear to have applied to the overall design but not this lock in particular.

http://www.google.com/patents/US977337? ... on+padlock

Either way, cool lock! Let us know if you get anything figured out.

-Mike
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Re: Miller Lock Company Combination Advice

Postby Raymond » 28 May 2014 22:46

Try 7-5-3
Nothing is foolproof to a talented fool. Wisdom is not just in determining how to do something, but also includes determining whether it should be done at all.
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Re: Miller Lock Company Combination Advice

Postby Mikeh727 » 29 May 2014 2:02

Funkja,

It looks like four numbers in the combination.

Based on the drawings and an opening sequence that I found, you might be able to brute force less than 40 combinations and get this thing open. That's a big might....I am not familiar with this lock but it might be worth a try.

The opening sequence I found on line was two times left to the first number, then right to the second, left to the third, and right to the fourth. Each of the second two numbers was contained within the first two. The combination on the one that I found was left 2X to 7,right to 11, left to 8, right to 9. So, 7 and 11 are 5 numbers apart, and the other numbers are all within those two numbers.

The diagrams on that link seem to support this type of combination. I would try picking two number that are 5 numbers apart as your starting point, such as 12 and 4. Go R 2X to 12, L4, R1, L2. Then try the same first two, but then R2, L3. Then the same first two and R1, L3.

With only 12 pairs of numbers to start with and three combinations per pair, that's 36 possible combinations to try.

It's a shot in the dark but if it were mine, that's how I would start.

Good luck, let us know how it goes!

-Mike
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