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I Forge Iron

Nakedanvil - Grant Sarver

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Posts posted by Nakedanvil - Grant Sarver


  1. The " Novelty Ironworks" Hammer on Ebay is interesting. I just sold one last year. The Novelty Iron works folks only made 300 of these hammers. Their claim to fame was that the company made and installed the iron sides on "Old Ironsides".
    The power hammers were meant to be set up with four pieces of pipe for the stand. They were made to be portable so they could be packed in to mining camps on the back of a mule. Odd: With only three hundred made, I know of three here in Western Oregon.

    Sorry Eric, that story is incorrect. The U.S.S. Constitution (Old Ironsides) was planked with eastern live oak and got her nick name when English cannon ball bounced off her in the War of 1812..........fifty years before iron-clad ships. I had the honor of outfitting the crew that re-calked her around fifteen years ago.

  2. I'm wondering how well this work when translated into hydraulics with oil in it ? How would you get around the viscous oil slowing down the air ram ? Could you get away with huge ports and check valves ? Its a neat idea for sure.

    Good question indeed. Yes, I think porting would help, also a larger steam/air cylinder would probably be enough to overcome the extra resistance too.
  3. Three ways actually. Differential heating, differential quenching and differential tempering. Of the three I have a preference for differential tempering in most things. This allows you to make the softer part a high strength, just lower hardness.

    Differential heating is most easily done with induction or a torch.

  4. I sold a power hack saw once that had what was known as a "Johnson-bar" drive. The had two jaws so it always centered in the same spot and there was a linkage from the vise to the crank that changed the stroke of the saw. So, if you had a 2 inch part in the saw it might take a 12" stroke, but if you had a 12" part in the saw it only took a 2" stroke! This allowed all the teeth to be used, many hack-saws only wear out the teeth at the back end while the rest of the blade is like new!


  5. The nuts on the tee bolts are used to adjust the spring tension. the most common method of locking them is put 2 nuts on each bolt then hold the nut closest to the arm with a wrench and jam the second nut up against the first with another wrench.

    Sounds like you got the picture better than I did, If that is the nuts that are coming loose, you just need to jam them tight. You can also put a lock-washer between them.



  6. Measure how many amps the motor pulling under full load (FLA) . FLA is typically stamped on the motor tag. Or if you can't put your hand on it after running it for say 5-10 min you're overheating.......If you can smell it or see smoke it's a no brainer.............The motor could be overheating because the machine is not running freely or isn't lubed...........

    Don't be fooled by running it without work in it. Hot iron soaks up the energy of the blow. Pounding on nothing just compresses the spring and returns some of the energy.
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