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what is it?

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Topic: what is it?
Posted By: ac hunter
Subject: what is it?
Date Posted: 12 Jan 2021 at 4:01pm
Found this in some of my father's old stuff and have no idea what it was used for. Has a file in it and an adjusting screw. Maybe something to do with sharpening a hand saw?



Replies:
Posted By: shameless dude
Date Posted: 12 Jan 2021 at 7:39pm
i've seen those...but never paid any attention to them


Posted By: Grayray
Date Posted: 12 Jan 2021 at 8:39pm
AC, you are correct.  When you mention about sharpening hand saws, I thought you were thinking of a saw jointer, but this doesn't look like the ones I've seen, close, but not the same.  I did a quick search for saw jointers, and found several like your picture, and they were called raker gauges.

https://www.ebay.com/itm/Vintage-Crosscut-Saw-Sharpening-Tool-Raker-Gauge-Excellent-READ-TO-THE-END/114611850778?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D837acd21dc3c4b468caa78500f0d7226%26pid%3D100675%26rk%3D1%26rkt%3D4%26mehot%3Dnone%26sd%3D114611850778%26itm%3D114611850778%26pmt%3D1%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3Af97862d0-5546-11eb-924b-5ad343e0c2bb%7Cparentrq%3Af99261061760a9ca261360a7ffc1113b%7Ciid%3A1" rel="nofollow - Vintage Crosscut Saw Sharpening Tool - Raker Gauge - Excellent READ TO THE END | eBay


This would not be used for a carpenters hand saw, but for a tree cutting or lumber jacks saw.  For cutting live wood, a saw has a few regular crosscut teeth, then something called rakers which remove the saw dust and chips.  These rakers need to be a few thousandths shorter than the regular teeth so they do not touch the bottom of the saw kerf.  This gauge would be used after sharpening the teeth to file the rakers down the couple of thousandths

The odd double teeth in this picture are the rakers:   https://images.ffx.co.uk/tools/ROU66842.JPG?w=1280&h=960&scale=both" rel="nofollow - https://images.ffx.co.uk/tools/ROU66842.JPG?w=1280&h=960&scale=both





Posted By: DonBC
Date Posted: 13 Jan 2021 at 1:22am
You have to do the same with a chainsaw if you have filled the teeth down a lot.

-------------
Jack of all trades, master of none


Posted By: ac hunter
Date Posted: 13 Jan 2021 at 6:47am
Grayray, Shameless,
      Thanks for the identification. I have a couple of cross cut saws that came from dad and probably belonged to my grandfather. 
     Grayray, I see you are from Ambridge, Pa. My parents met at the ship building company that was located there during WW II. Mom worked in the Navy office and Dad was a welding inspector in the Navy. They built LST's there. Probably nothing  left of all that facility now.
     Thanks, Russell.
     



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