[SEL] Prentiss Vise update

[Germoamer at aol.com]

Here are a couple of pictures of my vise after painting.  The pipe  jaws 
are removable and reversible. The face jaws are held on with an oversize  
1/4-20 flat head countersunk machine screw.  By oversize  the  thread diameter 
measures .264, which I think may have equate to a #14-20, a now  obsolete 
thread. One of the screws was broken and so I found a socket head cap  screw 
that had the same head diameter as the original screw. The taper is  also 
unusual in that it is 140 degrees included.  Longer screw is the cap  screw I 
machined. 
 
Wonder what the 181-191 means on it?
 
 
 
_http://www.oldengine.org/members/schmutz/images/vise2.jpg_ 
(http://www.oldengine.org/members/schmutz/images/vise2.jpg) 
 
_http://www.oldengine.org/members/schmutz/images/vise3.jpg_ 
(http://www.oldengine.org/members/schmutz/images/vise3.jpg) 
 
 
_http://www.oldengine.org/members/schmutz/images/vise4.jpg   

Tom  Schmutz
Concord,  Va.
germoamer at AOL.com
_ (http://www.oldengine.org/members/schmutz/images/vise4.jpg)