So far, my trip into the physics of applied forces hasn't been met with anything that even slightly resembles a, "I say there, Mitchell, I think you might have it, sir". In truth, my plans have pretty much garnered a, "Cute, but it won't bloody work you moron."
So I do what I do best...I do more research.
For my vice idea, I only had to cruise as far as the Popular Woodworking site to discover one of Christopher Schwarz's articles on vices, one of many, an article entitled, "Meet the Etaux from Old Salem's Shop".
An "Etaux" is an add-on to a vice and is used for specialty work, much like Moxon's Twin Screw Bench Vice. The one Chris was discussing is basically a miniature leg vice.
Chris had a couple of images of this vice that were small and showed less than ideal detail. I went off and searched for better ones, but couldn't come up with any, so I did a little work with Chris' to get some of the detail between the uprights to display. If nothing else, these adjusted images will show you why you can't enlarge digital image files - they fall apart.
Bad images aside, the design of this vice results in the question..."Why the hell will this old French guy's design work and mine won't?"
|The inset is the original in its original size and the black and white image|
is the adjusted one, like I had to explain that one to you :0)
|There is no glide connecting these two uprights to keep them|
parallel. None, nada, zip. The only parts are a large screw at
the top, and a smaller one at the bottom. Now where did
I see that design before?
Oh ya. It was mine!
|Two examples from an early 20th-century tool catalogue, La Forge Royale.|
While I have never seen this vice before, I couldn't help but notice that even the bottom, lighter screw comes at things from the back.
While I can't see it in the photos, the bottom screw may be connected to the front upright in some way. I have emailed Chris and asked him about this. I'll let you know his answer once I receive it.