Old castell padlock pat n 430168

[femurat]

I got this nice padlock some time ago and was going to make a key for it.

I found a key cut quite shallow that seemed a bit too big but could fit. Filed it until it entered the keyway. Then I blackened it with a candle and tried to impression it. Got not much luck because I couldn't find a way to put pressure to the pins to leave marks. Pulling the lock apart with my fingers was not enough, and I don't want to ruin this beauty so I'm not going to force it with tools that could leave marks. Does anybody have some hints on how to impression it?

I shimmed it open and analyzed the pins. The bittings seems very similar to a couple keys I found with an online search. The first pin long, the second one very short and the last two almost the same length as the first one. Is this padlock part of a big master key system?

Thanks :)

[Huw Eastwood]

that one had me guessing for a minute as 'castell' is Welsh for castle- interesting padlock and a name I hadn't heard of before.

[Timothy]

Nice Lock. This look like to me almost like all the push key padlock (Yale Model 803, 805 and other padlock). Look like you need to push pressure on the lock as per drawing A & B. Maybe using a rope or something to pull on the lock A & B to impression the key. I remember long time ago a guy came up a tool to pull the shackle while trying to pick the lock or impression the key also using a rope. Keep this in mind only use so much pressure to do this. I attached the PDF....Timothy....

[Timothy]

I was just thinking if you have some kind of small wood wedge to put between the lock part to add pressure to pull apart....Timothy...

[femurat]

MaxVaultage, castello means castle in italian. Our languages do share something after all.

Timothy, thanks a lot for the patent, I couldn't find it myself. I'll try some rope or some wooden wedges and see what happens.

Cheers :)

[Riyame]

I had one of those for a short period several years ago. They are a zipper/briefcase lock. Not sure how you would tension it though.