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Posted 15 months, 23 days ago
walksoftly
(75 items)
I was given this knife, but I have no idea how it opens up, the one pin appears to move in the track around the other. To do so it seems that you would have to push the blade down, any ideas?
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When I was a boy (1950's) I had a pair of knifes similar to this. It was in a magic kit. There were two of them. One had white plastic handles on both sides and the other had one side white and the other black. They opened by pressing the blade in.
This released the pin at the swivel point of the blade so it would spring out enough so you could open it up. Hope this might help in your search.
I've tried pushing the blade in, and I've tried pulling the pin out, neither works. If you look closely ( jewelers loupe) you can see a rub mark from the pin rubbing on the edge of the track.
This looks to be an early version of the Axis or Arc lock. Keep playing with it until you get it opened, the tang stamp will tell us the rest of the story.
The knife appears to have a spring back lock as the right hand end ( pivot end) is free to move, and does so when you push down on the blade. The blade has no groove in it to pull it open. The placement of the pin in the slot requires that it move in a CCW roation, if the right pin is the pivot then the blade would have to pass through the body of the knife.
while pushing down on the butt of the blade, try to move the pin in the slot CCW. If it won't move, try first to depress it and secondly, pull it out slightly. You might also try gripping the blade and sliding the whole blade back toward the pivot. Conversly, try sliding the blade forward and following the above instructions.
Savoy has it right, depress the blade enough to take pressure off of the sliding pin, when released, the backspring should force the blade up enough to finger pinch it. If none of this works, the mechanism is froze up.
I don't think the mechanism is seized as it moves in freely, I have tried pushing down and back but that doesn't work. There isn't enough room on the heel of the blade to allow that much movement. How do I research the patent date, could be British, Canadian or U S.
I should rephrase that, it moves down into the body of the knife freely, and you can see the heel of the blade move and the back spring move out.
Mystery solved I found the patent and drawing, it's easy to open up when you know how. Here is a link to the drawing.
http://patimg2.uspto.gov/.piw?docid=00338251&SectionNum=2&IDKey=BA8F331A91BF&HomeUrl=http://patft.uspto.gov/netacgi/nph-Parser?
There is no manufacturer info on the knife.
Thanks for the love Bellin
Thanks for the love, PeterN.