pneumatic gravers - if you like neat things

[cfellows]

This is the website of Lindsay Gravers, air powered, oscillating engraving tools. If you follow the links their are patent drawings which show you how these things work...

Chuck

http://www.airgraver.com/indexc.htm

 

[Powder keg]

That would be fun to learn, But I don't need a new hobby:O) I can't do all the stuff I want to do in this one:O)

Thanks for sharing, Wes

 

[Rog02]

Thanks for sharing that link, Chuck.

 

[cfellows]

To tell you the truth, I wasn't so much interested in engraving as I was the engravers. These are quite ingenious the way they work and may have something in common with steam / compressed air engines. The interesting part is that they are valveless. I'm wondering if the mechanism couldn't be adapted to a compressed air engine.

Chuck