twertsy
Well-known member
Re: Possibly a 1892 pat. Lewis Tool Post Mount Swivel DYNAMIC JAW and Swivel Base.
I realize this is an extremely old post but I've been going through this thread systematically so here's the May 31, 1892 patent:
https://patents.google.com/patent/US475760A/en
The only markings on it that I can see at this point are "pat may 31 1892", but I believe this to be an error... I thinks it is actually supposed to read "Jan. 5 1892" referring to a Patent by M.G.Lewis, New York, New York. This Patent refers to the locking mechanism that holds/releases the SWIVELING DYNAMIC JAW, however the patenet drawing demonstrates it on the rear jaw, the mechanism is at issue, not the position, imo. This is a "post mount" bench style vise which also has a swivel base with a some what odd spring loaded pull-knob at the release/lock. The jaws are 4" wide and it weighs 56#'s...
All of the above is a guess and I would welcome any and all info, corections, statments and or B.S.!!! Thank you in advance, I love this site!
I realize this is an extremely old post but I've been going through this thread systematically so here's the May 31, 1892 patent:
https://patents.google.com/patent/US475760A/en











