Been lurkin around on here for a bit now.... After going through every page of this thread over the past few nights I got inspired to dig out one of my "extra vises" and clean it up. I can't find much info on it... only markings read "No. 345a, b, c, and Made in USA". It appears to have the swivel static jaw but I can't get the "pin" out of it to save my life. I'd love any info y'all could provide.
The castings on that vise appear to be the Reed make, or possibly Hollands. Presumably, that vise would have been made on contract for some sales firm who put their own brand logo sticker on it. (like the Wilton vises sold by the Snap-On dealers, and marked 'Snap-On' for example)
If so, the taper hole for the back jaw pin will be 'through' to the inside area of the back jaw. After removing the main nut, use little scraps of steel as may be needed to set up a little planer jack in the area under the taper pin, with the pressure screw of the planer jack co-planar with the taper pin.
Use a little scrap of round steel which will enter the hole below the taper pin, and bear on the bottom end of the pin.
Tighten the planer jack as much as you are reasonably able, and then 'rap' the top surface of the swivel back jaw alongside the jaw pin, using a copper drift and a 4lb, or so, hand hammer.
A few good 'whacks' should free up the taper pin.
If that doesn't free up the taper pin, set the back jaw assembly up in a Bridgeport class mill, and dial the pin in concentric with the spindle.
Drill/tap the taper pin 5/16-18, 1/2 to 3/4" dp., and run a short 5/16" stud into the pin.
Make up a short steel ring which will just clear the O. D. of the pin, and is 1/8" or so longer than the pin protrusion from the jaw casting. Add a few suitable washers, and wind down a nut on the stud, making a de-facto puller. Remember to use a graphite/oil mix on the threads.
Take care, as the pin may 'jump' with surprising velocity when it breaks loose, so you don't want to have your face in line with it.
That will surely remove the stuck pin.
If you have to tap the taper pin to remove it, find a 5/16"-18 forged eye-bolt, and thread that into the pin. Run a nice smooth bead of weld to secure the eye-bolt, and tell anyone who asks that its an original feature, so that the pin, if it sticks again, can be removed easily by twisting it with any suitable bar, and also so that the pin can be hung up on a convenient nail when not in use, to avoid mis-placing it.
(yes, I've 'been there, done that'........ : ) )
cheers
Carla