Last summer I cleaned out my grandfathers business, got a lot of great (and expensive) tools. He ran a forensic mechanical & electrical engineering company.
Took this nice Columbian 43 1/2 off of an old bench, didn't clean it off until today, nice straight main handle, but the swivel adjusting handle was bent pretty bad. Managed to take it off and get it almost perfectly straight. Not bad for a free vise!
Before taking it apart and re-assembling it I noticed that the front jaw, when not fully closed can move back and forth about 1/4" and when tightening or loosening the vise jaws, the jaws themselves don't move until the handle is turned about 1 1/2 times. I took some pictures of inside where the retaining washer rides in the groove at the start of the shaft, and when I push in the main shaft from the front, this is how much room I have behind that washer:
When the vise is open, and I push the jaw towards the body while holding the handle (not turning it), this is how much of a gap I have by the handle:
It doesn't really bother me that much, just wondering if this is how it would normally be.
Also picked this up from the cleanout last year as well, a small PanaVise with hard rubber jaws, no model number on it, the jaws are about 2 1/2" wide and it stands about 7" tall. Pretty awesome for small detail work.