File:1882 - HART MFG Co Tap and Die.JPG
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source:James Baur collection.
This was in the back of Ralph Baur's tool shelf. It is a HART MFG Co tap/die made in Cleaveland, OH. It was patented Aug 29th, 1882. It is the same type of tool Henry Ford used to build his quadricycle.
I believe Dad must have gotten it from Martin A. Jaus. It was often used with steam engines to thread the steel pipes. Martin's uncle Simon Jaus was a steam engine enthusiast and owned a steam grain mill. Martin had a steam operators license and used steam tractors on the farm.
According to the 1910 "The American Blacksmith" it is also used in blacksmithing.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:55, 2 June 2018 | | 4,608 × 3,456 (3.69 MB) | Jbaur (Talk | contribs) | {{subst:photo}} |
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