Anvil hardy clasp

[Seamus]

Good idea Mr. Davies!

Here's some things which might help the thought process

scroll down to Chapter 3

The Project Gutenberg eBook of The Young Mechanic, by James Lukin.

and here's a steel industrial version

https://patents.google.com/patent/US328102A/en

https://www.facebook.com/groups/7998...71766286278928

The principle is the same - the more you push into the "vise"
the tighter it clamps...even though the second one is oriented vertically