Jim, The blacksmith's leg vice is made from forgings,and is usually made
in wrought iron. This gives it the toughness needed to absorb the shocks
involved in hammering metal. Ordinary fitters bench vices are usually
manufactured in cast iron. Whilst these are fit for their intended purpose, if
they are subjected to a shock load, or overtightened by using an extension tube
on the tommy bar, they can fracture across the neck of the moveable jaw.
Regards
John Duggan,
Wales, UK
--- On Wed, 12/10/11, Jim Nichols <jhnichols@xxxxxxxxxxxxx> wrote:
From: Jim Nichols <jhnichols@xxxxxxxxxxxxx>
Subject: [OM] IMG: Another Relic From the Past
To: "LUG@xxxxxxxxxxxxxxx" <lug@xxxxxxxxxxxxxxx>
Cc: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Date: Wednesday, 12 October, 2011, 19:37
Attached to the end of my cluttered workbench is a post vise that goes back at
least three generations in my family. I first recall seeing it as a part of an
outdoor blacksmith shop on our farm, in the 1930s, under a large sweet gum
tree, where plows were sharpened and general repairs were accomplished. I
suspect it dates back to my great-grandfather, but can't confirm this.
The post vise mounts to the bench and is supported by an iron post, in my case
anchored by an oak log:
http://gallery.leica-users.org/v/OldNick/Vise+78.jpg.html
The vise is powered by an encased Acme screw thread:
http://gallery.leica-users.org/v/OldNick/Vise+83.jpg.html
Many of the parts appear to be crudely forged or stamped:
http://gallery.leica-users.org/v/OldNick/Forging+Details+81.jpg.html
Fuji Finepix F10, ISO 800, Flash
Comments and critiques welcomed.
Jim Nichols
Tullahoma, TN USA
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