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After a while, I got down to the bare casting. The chain leads to a large counterweight hanging
inside the central column, and was still flexible even after more than a decade out in the weather.
The text on the right-hand arm reads "Rockford Drilling Machine Co. Rockford Ill. U.S.A."
The text on the lower left arm reads "Pat'd Oct. 15 1900". The cross arm at the top says "20 Drill"





All text, photos and graphics Copyright 1998- 2015, Doc's Machine & Airsmith Services. All Rights Reserved.
Information contained in these pages is for reference and entertainment purposes only.  Our methods are not always the best,
quickest, safest, or even the correct ones. It's up to you to know how to use your own machines and tools.
Keep your fingers away from the spinny blades o' death and you should be all right.