Reply To: Hand Brace ratchet to handle thread
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Yes, but how was that hole drilled when the brace was being manufactured? There must be an entrance hole either below the visible hole, or, more likely, diagonally opposite the visible hole. Is there a shear pin, or the remains of one in the threaded part of the handle (the bow)?
Or is there a fracture surface on the end of the male thread?
You might also have a look at Brit’s page on Lumberjocks – The Humble Brace – A Beginners Guide to Restoring Owning and Using Part 2 – he renovates a brace with a similar type of mechanism, although he didn’t have to dis-assemble that part of the brace. It will give you some photos of what parts should be there. Look down the bottom of that particular page. I have attached a link but I’m not sure that links will go through the system. I’ll try anyway.
http://lumberjocks.com/Brit/blog/25110
If you can get access to a copy of Aldren Watson’s book – “Hand Tools – Their Ways and Workings” There are some useful sketches on pages 46-49 of this kind of brace mechanism but sadly not the threaded attachment of the bow to the cam ring. The pin referred to above as a shear pin is called the “stop pin” in Watson’s book.
Cheers
Mark