Iodine/bromine box spring

[phuphuphnik]

I am not sure what you mean. There is no contact of the iodine crystals to the plate. They are 3-4 cm (or more) from the plate, and the fumes act upon the plate. The spring you ask about may be to hold the plate in place.

[dragos]

Maybe I didn’t explain well, I’ll try to be shorter.

As far as I understand this is a modern improvement for the sensitizing boxes:
(from the bottom upwards, interior of the box)

– bottom of the wooden sensitizing box;
– spring(s?) that pushes up the glass tray;
– glass tray;
– upper part of the box that holds the plate.

[dragos]

Actually since yesterday I started to read through all this forum.
And I got to this post https://cdags.org/forums/topic/another-dag-box-ques-from-ty/
…which kind of explains my question. At least the theory.
I still don’t understand what happents with the tray (dish) when you pull out the glass slider: it goes up? Pushing what? The frame of the box or the frame that holds the plate? Logical answer is the first, but then, how do you put the slider back, with the dish covering the sliding level?!

Thank you.

[phuphuphnik]

I see what you mean. I’ll start from the top. There is a lid, the spring blade holds it in place. below that, the sliding part is like a drawer, it has a hole in it that the plate sits in. below this is the top of the glass or plastic tray that holds the iodine.

[phuphuphnik]

The box I posted is for iodine and bromine, hence the two sides. not seen are the glass containers that hold the halides.

[dragos]

Thank you for your answers and images, phuphuphnik, I found another thread in this forum with the exact same question, here:

Fuming Box Questions.

Specifically is about limiting the extension of the spring that pushes the dish up. Another solution would be not to draw the slider all the way out, let it always sit on a side of the dish. Both solutions seem technically approximative, though Mike’s boxes are so beautiful, and sure functional.

I’ll dig some more and if/when I come with a better solution, I’ll post it here.

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