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Prairie Tool Co. Model 85 Grinder Restoration

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Blog series by Rick M. updated 592 days ago 3 parts 8166 reads 7 comments total

Part 1: Revitalizing a hand crank grinder

593 days ago by Rick M. | 3 comments »

This came in today, a hand crank grinder, model 85, from Prairie Tool Co. Prairie du Chien, WI.; made sometime after 1920. Auction photo. My pics. These are all before I took it apart, cleaned, oiled/greased. I’ll get new pics after dinner. For some reason my youtube video is not showing up. FIXED! The threads were in rough shape. After buying a 7/16×20 nut and filing the threads a bit I finally realized they were left handed… another trip to the har...

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Part 2: Elbow grease and regular grease, applied.

593 days ago by Rick M. | 4 comments »

After disassembling, cleaning, greasing, oiling and reassembling, I scraped and wire brushed the exterior then applied a coat of light coat of oil and wiped off the excess. She purrs like a kitten now. Better image of the unusual grease zerk. It can actually be seen now that I’ve removed about 1/16” of crud. Voila! This thing spins like a top, they sure knew how to make ‘em back in the day. It’ll outlast me. The original intent was to degrease...

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Part 3: Grinder tool rest

592 days ago by Rick M. | 0 comments »

Inspired by Rmac’s tool rest here: http://lumberjocks.com/projects/44468 After building the base I decided to simplify things a bit, eliminating the sliding piece on top as I won’t be needing it and using a single pivoting support under the tool bed allowing greater range of angles. I used 3/4” material instead of 1/2”. It’s not quite done, there is a 1/4” dowel acting as the pivot pin until I get to the store and buy a 1/4” carriage bolt and wingn...

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