How the he...

[Lars Karlsson2942]

Hi! First thread but I think I've been here before?

It's about a door in an inner-city building in Stockholm. The passive door has sliding bolts at the top and bottom. The lower bolt is supposed to lock into a hole in the floor made of what I believe is granite? A large floor stone that extends partly outdoors and partly indoors. The hole for the bolt has been enlarged by maybe a hundred years of door slamming. The question is how to make the hole smaller in a smart and durable way? I've thought about fixing a pipe stub. Drill the hole to a suitable dimension and depth, then insert the pipe stub and fill between the pipe and stone with something. Alternatively, use flat iron and drill a hole for the bolt, attaching it to the floor under the door leaf. Provided there is space between the floor and the door leaf. Ideas and suggestions are gratefully received. Lasse

 

[Mats-S]

Drill the hole to the correct dimension and depth, then insert the pipe piece and fill between the pipe and stone with something.

There are several types of epoxy glue that should work.

- clean the drilled hole extremely thoroughly
- apply some epoxy to the bottom before inserting the pipe, so that the pipe is "cast" in place at the bottom
- insert the pipe
- preheat the pipe and stone with a heat gun
- fill all cavities outside the pipe with epoxy
- heat everything again with the heat gun (You might want to put a thin "plug" at the bottom of the pipe to prevent any epoxy from "leaking up" when heating)

But I think it's better to wait until it's a warmer and drier season, a greater chance of successful bonding then ;-)

 

[Lars Karlsson2942]

There are several types of epoxy adhesives that should work.

- clean the drilled hole extremely thoroughly
- apply some epoxy at the bottom before you insert the pipe, so that the pipe is "cast" into the bottom
- insert the pipe
- preheat the pipe and stone with a heat gun
- fill all gaps outside the pipe with epoxy
- heat everything again with the heat gun (You might want to put a thin "plug" at the bottom of the pipe to prevent any epoxy from "seeping up" when you heat)

But I think it's better to wait until a warmer and drier season, greater chance of success with the gluing then ;-)

Thanks!

 

[Timmermannen77]

It wouldn't have worked to add some welding to the espagnolette that goes down into the stone, to thicken it a bit.

 

[Lars Karlsson2942]

Wouldn't it have worked to add a little weld to the espagnolette that goes down into the stone, to thicken it a bit?

Yes, but then it has to go up as well I think the espagnolette is tight. It's probably been replaced a few times. But it's a good thought. I'll see if I dare to remove the fitting. Old slot screws in oak. You don't want the screws to break if you haven't found a solution to the problem.