>AND that little chain binder
It would appear that you were not the only fellow to lose the little thumbscrew, 2 years after that patent, is another patent for the same vise, but with a wedge dog to hold it in place, and surprise, the dog has a ring to keep it with the chain so you don't lose it!
Interestingly, Nye seems to have been very conservative, the same basic vise appears in 1946 with a bench mounting plate (can't lose an entire workbench) and again in 1961 with the classic fold up tripod....
Interesting evoloution of a basic tool..