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Jupiter 1, pencil sharpener.

 

Paul M: I did what you told me. I found a gauge plastic plate from LMS, not used for many years, and tested many screws. All fit in same line : N.F TPI.
So the 2 missing screws have to be there.
So is this correct: 100 years old Hamburg tool factory used
UTS.



Johannes Lavoll.

IMG_2899.JPG

 

It gives you an idea but it may not be totally accurate. I assume these screws thread into your gauge. Do they seem to fit fairly well with not too much play? If so, I would try a screw that should work in the holes where the missing screws go. You should be able to determine the correct size by the inside diameter of the holes as compared to your gage. It may be that not all the screws used in this item are fine threaded or even imperial. Hope this helps. Paul M
 

It is problem with old things over 120 years before standards on screws.
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American and UK you can go more. But need American or UK different thread shape.?
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Then two ways to go back to the day built or fin. Something close and re-tap hole and usd today's screws.
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Dave?
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On Fri, Jul 26, 2024 at 07:12 PM, Johannes wrote:

Paul M: I did what you told me. I found a gauge plastic plate from LMS, not used for many years, and tested many screws. All fit in same line : N.F TPI.
So the 2 missing screws have to be there.
So is this correct: 100 years old Hamburg tool factory used
UTS.



Johannes Lavoll.

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