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Post by Peruano on Nov 27, 2013 18:45:31 GMT -5
I stumbled on this saw and decided it needed to be rescued from oblivion. My challenge is to see it run. While it has some rock dust and scale on it, it should clean up easily. Nelson Machine Works - Portland Oregon LD 12 Serial Number 44. This is no light weight. The vice and sled assembly weighed in at 33 lbs, and the saw total is probably more than twice that amount. Here's a view of the saw sans vice. The sled rides on one triangular rail and one round one, gravity feed with a nifty hook to hold the sled back until ready to release it against the blade. My brief research shows that Rockoonz,Beefjello, Azrockgeek, Roy, and Orygone and possibly one other regular here (sorry I'm writing off the top of my head) have this saw but in various states of use or restoration. Alas the frame that the saw should set in was not with it and I'll probably take some time designing one. These photos are for the historical record and your collective amusement (hopefully). Tom
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Post by catmandewe on Nov 27, 2013 18:48:35 GMT -5
Most of these had a one legged stand under them. Kind of cool looking. I love old saws.
Tony
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Post by deb193redux on Nov 27, 2013 19:02:14 GMT -5
will you build a box?
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The Dad_Ohs
fully equipped rock polisher
Take me to your Labradorite!!
Member since September 2012
Posts: 1,860
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Post by The Dad_Ohs on Nov 27, 2013 21:01:42 GMT -5
very cool... water cooled too I believe.
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Post by Hard Rock Cafe on Nov 27, 2013 22:56:21 GMT -5
Yeah, Mario, it must have been water cooled; there's no sump.
Chuck
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Post by jakesrocks on Nov 27, 2013 23:00:05 GMT -5
Cool find. Looks like I'm not the only one with winter restoration projects. Keep us up to date with your progress.
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Post by Peruano on Nov 28, 2013 17:05:51 GMT -5
The collective comments prompted me to look closer at my find. I was assuming water cooled because it has a relatively small narrow catch basin(sump) under the saw and an obvious drain from that. Yes Tony, it had a strange stand - a tripod with one support attachment at the vice end of the saw, and a double support at the other end. Alas I did not get the stand. It seems to beg for a tank to be built for it to rest in, but lets see whether my or my friend's creative welding will stand the pressure. Curiously, it has two pens (adjustable and set screw secured) at the opening of the blade hood that presumably cause/help the blade to be centered (too much deflection would rub the pens). How many saws have such a feature? There is also a pivot point at the 4:00 position relative to the blade if viewed from the non-bearing side. No idea what attached to that one. I'm starting to search out photos of similar saws and somewhat confident it can be made to run and run like a champion. Alas its restoration may be delayed by a 10" Raytech purchased at the same time. Can you have too many saws? Tom Just found this photo of an 18 inch Nelson mentioned from Puget sound Knappers site and am trying to insert it . www.pugetsoundknappers.com/how_to/Rock_Clamp/Finished%20Rock%20Sawb.jpg
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Post by Rockoonz on Nov 29, 2013 1:42:35 GMT -5
Tom, No, it is not possible to have too many saws.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,179
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Post by jamesp on Nov 29, 2013 6:20:04 GMT -5
Heavy duty rascal. Looks like a fine saw. And a vintage beauty.
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Post by 1dave on Dec 1, 2013 10:24:07 GMT -5
Please share the photos as you find them.
Dave
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GeorgeStoneStore
starting to spend too much on rocks
Member since November 2011
Posts: 168
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Post by GeorgeStoneStore on Dec 1, 2013 11:35:49 GMT -5
It would be good for me such a machine... I restored , to preserve its original beauty. Old great engineers ...
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The Dad_Ohs
fully equipped rock polisher
Take me to your Labradorite!!
Member since September 2012
Posts: 1,860
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Post by The Dad_Ohs on Dec 3, 2013 23:24:49 GMT -5
If you are going to build a box for this saw I would advise keeping a sloping bottom to it with a 1 inch opening to allow the saw to drain into a bucket if in a building or straight onto the ground.
I have also seen where the sump is placed in a large bucket about 1/3 the way up from the bottom so that the rock snot will settle and not get picked up by the sump pump.
I would recommend a dual bucket setup where the 1st bucket is the catch bucket and the second bucket catches the overfolw of water from the 1st bucket thus allowing the water to settle out must of the muck and the cleaner water to be available for the saw.
This would require 2 buckets with a pipe/hose connecting them at about 2/3 from the top and the pump in the second bucket with a brick or something to keep it about 1/4 - 1/3 from the bottom, just in case. fill the first bucket until the water flows through the hose into the second bucket, then fill the second bucket about 3/4 full, this way you will have enough water available for use so that you can cut for awhile.
Just have to check on water level and the amount of grit in the first bucket but that will probably take more than a few hours before it would need to be emptied and refilled.
This si how I plan to setup my next saw, a 10 inch slab/trim saw, because disassembling a saw to muck out the bottom of the sump is time consuming and whan I get a rhythm going with my cutting I hate to stop to clean out a saw.
Just an idea, but one I plan to put into practice.... I hope to use 2 fountain pumps if I can't get a regular pump with enough pressure.
Either way ... Good Luck with it and please post pics as it progresses along !!!
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