I believe the Wilton brand of vise I've used in Britain had a quick change for to open and close the jaw, it was located near the portion of the slip through for the handle, you squeezed the trigger or projection to the screw portion then the jaw was free to be quickly adjusted open or closed. Even very heavy models had the same feature, as at first it would appear to weaken the system but I never saw or knew one fail with this feature. I left Britain, (For Good, and it turned out Very GOOD) in 1954 but I believe they were Wilton.
All woodworking vices of all makes had the quick open-close feature, but I was surprised to see it on heavy large steel vices used in engineering shops when I saw them for the first time, where large 20 pound sledge hammers were used to coax reluctant steel into shape.
Also when working in engineering plants in the US I was surprised that the average shop size drill presses did not have the automatic feed system as I only saw them on the large radial drill presses. Even the common shop utility drill presses in Britain had the self feed system, in operation you brought the turning drill bit to the workpiece, start drilling and if satisfied push the operation handle into the direction of the drill then you were free to walk away, the drilling would continue until it reached the end of the run, which was also adjustable.