Disston Rip Saw Restoration

mardi 20 mai 2014

Hi all,

I seem to have chased another rabbit down a hole.



I was ripping some nicely figured firewood (don't ask) into boards with a modern "universal" hard point saw when I decided I needed a rip saw. I do have a Japanese ryoba saw, but decided after one board that they are not meant for gnarly red gum 100mm thick (though it did give a nice finish, I couldn't keep it on line and it was very slow going).



I have and old Disston rip saw, bought for about one dollar at a closing down sale at a local joinery. So, in a moment of madness, I thought "why not restore the rip saw I have?"



It's in a shocking state. The pictures below show the state after some work (I din't think to take photos before starting). The photo's are also in a shocking state - they were taken with my crap phone.



The blade was red with rust, and after some work I can see some steel. There is some pitting, mostly smaller than 1mm. It needs a serious jointing, the rake on the teeth is about 30 degrees - I wouldn't be surprised if some of the teeth were formed with the corner of a rectangular file!



The handle is much abused also. It has all the nuts, but has several breaks that have been repaired by attaching a strip of metal along the bottom (saw_handle_1.jpg), and by a screw in the top (saw_handle_3.jpg). Without these repairs the handle would be in several pieces (and nearly came apart removing it from the blade).



So, my questions are:



1) Is it worth it, or is it too far gone?

2) Will the pitting on the blade affect cutting performance

3) Is the handle repairable? (I've never made a handle before).

4) How do I remove the verdigris and other grime from the handle, if it is to be repaired? If, say, I use turps, will it affect gluing up afterward?

5) The highest teeth are under the handle, once jointed they will almost disappear - should I reform them or ignore them as they're never used (by me, anyway)?



The blade is just over 26 inches, and I have included a very fuzzy picture of the medallion for those interested in the model of saw.



Thanks in advance,

Chris.


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