Need help locationg a part

[kcaz507]

Im trying to find a part for a Yankee Tools #230 Ratcheting Screwdriver, I found this along with other tools in my great grandfathers garage approx 20 years go, forgot about it and found it again recently. The problem is I finally got it apart and I heard a ting, ting and a piece fell out, and for some reason I cannot find it in my garage, Here is a picture of what I am looking for:

Here is a website that shows the patent drawings for the ratchet mechanism, the part is Fig 4, labeled with a D:

http://www.wkfinetools.com/hUS-borTools/NorthBros/patents/0,593,157/593,157-01.asp

Any help would be most appreciated.

 

[bc'z]

might try finding one that is complete enough to take the piece you want to make your grandfather's whole again.