Case Bose Collaboration Question

mlamb

mlamb

Joined
Feb 12, 2006
Messages
279
I'm sure someone can answer this? I have a Case Bose Ebony Coffin Jack, I noticed that the top and bottom handle pins are press fitted to the liners. My question is they appear to be hollow from the back side or are they solid like the center pin that holds the liners together?

Thanks,
 
Greetings,

The cover pins are likely hollowed out for just a short length, say maybe approx. 1/32 inch. This is to accommodate a pin spreading fixture that spreads the pin into a countersunk hole in the scale. I've done this on an arbor press but I'm not sure what method Case uses.

Eric
 
I suspect that ea42 is correct. You can upset a solid-ended pin, but it may not spread very well at the head and the body may crack the scale. Dishing or hollowing the end helps it spread uniformly and allows it to spread without applying so much force that the whole pin expands and cracks the scale.
 
Just an FYI, when I referred to "scale" I was referring to the liners. Scales and liners mean basically the same thing in the knife industry, handles are generally referred to as covers. I think at some point in the past there was a bit of a mix-up in collector terminology due to the fact that you can also put it another way by saying that the scales are what binds either side of the knife tang. This is why the covers on fixed blade hunting knives that are actually pinned to the tang (such as stag) are also referred to as scales. Nowadays many folks refer to pocket knife covers as scales, but if you were to go into any knife factory and ask what kind of "scales" they put on their trappers, you'd likely be met with a puzzled look and handed a pair of trapper liners :)
I hope I didn't just make things more confusing.

Eric
 
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