Forum: British Patent Specifications

Gary, as usual you are correct on the 4 wheels. the reason i said 3 was because i have the 3 numbers for the combo. However i just checked and when i dial the first number, wheels one and two move at...

Chubb lock Identification

It is a 4 wheel not a 3 wheel 7L51 model number.

Chubb lock Identification

I was hoping someone could identify this Chubb combo lock for me. It is a 3 wheel combo. I am looking for a change key and hope to find a couple of new dials as well. Any help is always appreciated....

Chubb lock Identification

Thanks for the information, I ll try that tomorrow. I can make a larger screw on my lathe & tap the hinge with a larger thread afterwards.

Removing Milner door

Most unusual. Looks like it's a rivet in the middle. If so you could either drill it right through or just cut away the countersink on the outside and punch it in with the screws firmly in place to...

Removing Milner door

I still can’t see any sign of a screw head, it looks more like some sort of press fit pin. It is a very early Milner. The diameter on the outside looks much bigger than the other two.

Removing Milner door

Oh, I see that the middle screw goes in the opposite direction. Will the door then lift out of the bottom pivot without removing the hinge?

Removing Milner door

There are usually 3 screws on the hinge. Tap and scrape and it should be there.

Removing Milner door

Chubb lock Identification

Removing Milner door

Dartmoor Prison Door Lock

Dartmoor Prison Door

small pin tumbler push key padlocks