Triple-Piston Pneumatic Circular Saw [Restoration]
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- Опубліковано 8 лис 2022
- This restoration is on a 1920s Model B12 "Safety Saw" pneumatic circular saw made by the Ingersoll-Rand Co.. The "Safety Saw" name was in reference to the patented design of the retractable blade guard, one of the first of its kind. This saw runs off of a triple-piston "Little David" motor that Ingersoll-Rand seemed to use in a number of their larger pneumatic tools.
Unfortunately, I could not find any mention of this saw in the literature and therefore it is only an educated guess on how much compressed air this saw need to run.
The saw had many previous repairs that all needed some new attention. The main issue with this item was the completely seized throttle valve and the extra crusty and old grease that had hardened over time.
Once cleaned of grease, repaired, and reassembled the saw would idle when I applied a bit of compressed air from my air compressor which can only put out 90 psi @ 20cfm. The idling is either due to the low flow of air not providing enough force on some valve to completely seal it, or there is a leak somewhere within the saw. Either way, I decided not to fix that issue because an idling pneumatic circular saw sounds AMAZING and I could listen to it all day.
Despite the reduced air flow, the saw still cut just fine and definitely had tons of torque. I'll be sure to use this next time I need to cut a thick wood beam with the most ironically named tool I've restored.
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I launched a new perfect handle smaller screwdriver for sale on the website. Some might even say it's an actual usable size this time....www.handtoolrescue.com
Useful size? What is this heresy?
Давление побольше надо !
I purchased one as a present for my son. It's freaking awesome!!
I do so very much enjoy your restoration videos.
Thank you for posting
Bro, for how long have you had that Evaporust barrel? THat water look almost black like oil.
Easily one of my top five favorite triple-piston pneumatic circular saw restoration videos!
to ruin the joke
HOW MANY TRIPLE PISTON PNEUMATIC CIRCULAR SAW RESTORATION VIDEOS ARE THERE??!
@@dimitar4y at least one?
@@frogz 😂😂
Never thought it even existed
Naa !!! You need to be more specific. This is the B12 model which has been done to death. I've seen at least five better ones !!
I think it is "idling" because the removed corrosion in the trigger valve assembly has resulted in too much clearance and thus the valve is slightly leaking. I imagine if you plated the spool valve with electrolysis it might take up the lost clearance.
I think the idling sounds kind of cool. It would give you rhythm like a metronome if it was used in the field on repetitive cuts.
Chugga chugga.
@@paedahe4975 That's the pleasing beat of the extra safety overflowing. Those old tools had too much safety for their own good, that's all.
I wonder if there were o-rings on the control valve at one point
@@ericpaul4575 Prob too old for O-rings, if you notice, it's all Regular slotted screws, too old for Allens and Phillips too - My 1946 and earlier stull is all slots screws, no "Modern Headed" fasteners?
It's supposed to do that... I Walter Mitty designed it!
These heavy duty pneumatic tools probably saw a lot of use in the mining industry. Many mines were not electrified, and usage of pneumatic tools would also reduce risk of sparks unlike electric motors. Also these pneumatic motors were light and compact for their power at the time. Drills and hammers were already using pneumatic air, so the piping and large compressors were there, and I think saws like this would come handy when timbering the mine. The standing pneumatic grinder you mentioned, lot of the larger mines had workshops down the levels, so running those workshop tools from the air line makes perfect sense too. Very interesting restoration as always!
There was probably more than a couple of job sites out in the bush that might have had a petrol powered compressor on site but no electricity hooked up yet this would have suited. Thinking with the right diamond wheel, enough water and no sense of self preservation it'd be bloody good for cutting marble
Oh! Good point! I wonder if the lack of sparks from a brushed electric motor is why it's a "Safety" saw.
@@wbfaulk No, safety because the guard is spring biased so that it dropping will not cut you, you need deliberate force to expose the blade from the guard.
Yes mines have a lot of pneumatic tools down shaft, all for safety, and no sparking, though a lot of them also have hydraulic tooling there as well, powered by water, as after all you do not need a compressor for them, merely the main shaft depth and that column of water. Dump the water to both cool the rock and keep dust down, and in any case you need to pump large volumes of dirty water out, so you have the sumps and pumps there, and as well that water often contains useful amounts of ore, so it also gets run through a centrifuge to get rock out, which then is treated like ore, and the rest is filtered and treated before discharge, though a lot also goes back down after that as clean process water.
Agreed. It's primary use is in mining. Compressed air was used not just for drilling but also underground winches - this saw would run on the same source of air.
i was told that air tools are also often used when you expect super long run times on the tools. they don't heat up or wear out like motor driven tools do, and they can often get a lot more torque. i have an air ratchet set meant for a racing pit crew, and they are torque monsters despite not being even rated for torqueing bolts
Awesome! I remember seeing the Craigslist ad and thinking "HandTool Rescue needs this death machine, I mean this "Safety Saw", in his life." Great restoration, especially great job on that aluminum repair! And thanks for sharing the unique engineering of this dastardly thing with us, I love the triple piston arrangement, and the brilliant way they kept the size small by "overlapping" all of the connecting rods! I also just LOVE the personality that thing has, the way it idles. Brilliant :)
Thank you again for sending this my way! Couldn't have done it without you.
@@HandToolRescue literally!
Awesome. :)
Wow. That’s a generous gift, to all of us. Cheers.
Liz, I think I can say this without any worry of not speaking for any of the viewers of this channel, thank you, you let us see a piece of history!
At first I was a bit sceptical about this saw. But then it started idling, and the sound it makes when it's cutting, it's freaking AWESOME!
Tools made before the days of workplace safety are always so freaking cool!
Yeah, but once they taste blood, they want more!
Your vocalizations were priceless when that spring bit you
Awesome restoration as usual! Can't wait for the pneumatic quintupel piston oscillating cake frosting applicator, I think Milwaukee made one back in the 50's. My granddad had one, brought it in for a warranty repair back in 64. They said it should be ready by next week.
I am amazed at how you can take this apart clean, restore, make repairs an then remember where they all go, as an Airforce Vet we had manuals that helped us, an you don't have, amazing job by an amazing guy.
I think he uses the videos to look back and see how everything was assembled, and that's how the channel got started in the first place!
I've never noticed how much closed captions enhances watching these videos until just now.
My month has been made now. Thank you for blessing the people once again
The sound of that "idle" is amazing!
I wouldn't think it's supposed to but way cooler.
I love this kind of shit. Getting to see old tools of the past restored and demonstrated how they were in their prime.
Closed Caption is my favorite UA-cam option!!!
Thank you as always!
-CYC
THIS IS *MADNESS.* WHAT KIND OF OVERLY-GLORIOUS MACHINE IS THIS!?
The tools you restore will never cease to amaze me.
You are a god damned national treasure. Someone should find a way to get you a platform of some kind where you could just make video content for all of us to marvel at and enjoy on a semi-regular basis.
Any mechanic does repairs, but only someone who has a love for tools does an excellent job like you. This is the best repair channel on all of UA-cam. Lots of information, very relaxing and you are so much fun too.
This HAS to be the COOLEST project you have done to date, EVER !!! WoW !!! And that rhythm it has ...... Thanks for a great video! 👍
As a child I always love taking things apart because I wanted to see how they worked. And I think this is what has led me to restoring tools and different things. To this day I'm still curious how everything works that I take apart. FABULOUS work on this restoration it works and looks wonderful !! 👍👍👍
I absolutely love that you use tools you've restored in previous videos.
He makes those old throw-back Screw drivers and wrenches and sells them - they only LOOK old- theyre brand new
Asbestos gaskets, lead-based paints, radium dials... Working with old equipment shore is fun!
This is a tool you seek out to own not because it is practical or better than your existing tools...but because of the amazing sounds it makes.
This thing is AMAZING I'm always in awe of the uniqueness of the items you find and restore!
Yours is an intro I never tire of watching. Makes me laugh every time. Reminds me of so many childhood 80s shows 😂
Brilliant restoration for an awesome saw. The guys who earned their living with these tools deserve much respect. Best from the UK where the adjustable HTR spanner is now in use. Thank you.
Well...Certainly a big saw. SICK restoration as always. GREAT WORK !!!!!!!!!!!!!!!!!!!!!!!!!
Got my perfect handle small screwdriver this week. Just the right size. Carry and use it everyday. Thanks.
I love the quotes around "Safety Saw", if they had the winking emoji back then I think they would have added that as well.
Yeah, I thought the same thing. You look at the saw and think "that looks totally safe"
"Safety" Saw is probably more accurate.
Safety is relative.
I like that this was named a "safety saw". It's no wonder tools like this don't exist anymore. Where do you find these death traps? They're awesome!
Safety saw in that it both had a spring guard that kept the blade away from contact, and also you needed force to retract the guard, a big upgrade over the older ones which had only a cover to keep the chips from hitting you, and no other blade protection, basically a bare spinning wheel of death.
These saws were made for underground mines with methane or other explosive gasses.
I had a pneumatic chainsaw and a pneumatic arc welder that i used underground
@@anned8634 'Pneumatic arc welder' seems like it may be closing the barn door after the horses are out.
A viewer named Liz Matzelle saw it on Cragslist and sent it in.
@@anned8634 pneumatic arc welder???
I love it! I've never actually heard a tool go "tah-pock-ah-ta" before. That thing rates right up there with the swing saw as a scary whirling blade flesh-mangler.
i love the old heavy duty air tools. there is essentially an air tool version of every single moving tool you can think of, and they are usually pretty interesting
This is now one of my favorite restorations you have done. Really nice work. Thanks for the videos! Stay well.
I'll second that. Nice name, by the way.
Every time I see your restorations, it blows my mind how well made they are for when they were invented. My education has unfortunately taught me mainly the bad side of history so seeing these incredible creations gives me a more hopeful outlook.
Forbidden, Nutella looks good lol good video I like watching you take old tools and making them look brand new again and they probably work a lot better than they did when they were brand new.
It's very satisfying to see the old tools being beautifully finished.
I LOVE THIS THING!!!! WHAT A BEAST!!!! Oh I see now it's from the 1920's ..... I was gonna guess the 1930's but it's even more awesome that this monster was was around even earlier!!!
I've watched a couple of color and speed/frame-rate restored films from the 1920's (I can't remember the name of the channel, but they also add some sounds to it just to give you the atmosphere of where they were filmed) and seeing what was around back then it's hard to believe this was the high tech back then, AND that you managed to get it working with very little work (well... I mean very little work as in it was mostly cleaning with only a few small repairs)
GREAT JOB!!!!
Holy Kadoodle HTR, cant believe your 90psi @20cfm wasn't enough for this Timber Beast, but then again the size of the 3 pistons was very impressive let alone the trick bearings. Great Job keeping it real with the restoration and repairs! Thanks Much for another @y@ Popping Rescue!
As a rule of thumb, an air motor needs 8hp driving the compressor for every 1hp delivered by the air motor. They are impressive in many respects, but efficient use of air is not one of them. A Mack truck air starter motor (vane type, very noisy, also made by Ingersoll Rand) uses about 750 cfm. Luckily it spins the engine so powerfully it only has to do it for a couple of seconds. So the air brake tanks, provided they haven't leaked down, will supply enough air. If not, Mack supplied hoses so you could couple up the tyres! Start the diesel engine, fill up the brake tank(s), then refill the tyres and you're off...
Turbine starters (eg Austart) are more efficient and quieter than vane type. But they still use a lot of air.
Your description of the smell of old, dried grease (Nutella) is so spot on. I can still remember the smell from working on ancient machines back in the day. The memory of the smell is somehow nostalgic... but... in all the wrong ways .
Love your videos btw :)
Thank you for helping me appreciate modern tool design!
Great resto buddy!
I love the old-world look!
With the proper compressor, that thing would be scary! LOL
I may have said this before, but seeing that intro and opening music with the clip, your face... It is better than drugs man, it brings a tear to my eye... I duuno why, is it because you remind me of a friend from a long ago, is it the nostalgic series opening from decades ago when times were better... You are a gift of God to mankind my friend...
P.s. a bloody nice saw... I was first thinking it would be a diesel 2 stroke, but when i saw the pneu valve trigger, i was not disappointed, as i didnt read the info... I see your vid, i like and fullscreen, then i read the desc... Either way, yeah, no wonder its got torque for days, that thing with a proper compressor and a 400 liter tank would be able to much through anything... Hell, this thing could only suffer from overheating of the main bearing, as from what i can hear, despite it cooling itself by air constantly, the idle speed increases slowly, which kinda points toward grease being heated up... The pistons and the walls should be getting cooled and contracted equally as one seems to be steel and other cast iron, so no differential shrink rate there, which only leaves the grease churning as the obvious source of heat, which doesnt seem to really be a great thing... I dont know anything about this saw, maybe it likes to warm up the grease and idle at higher speeds, but im not sure at which point of continuous duty does it want a break...
A beast of a saw!
I love the hardware on it! The bolt heads on this saw are gorgeous!
Thanks for sharing 🇨🇦
One of your best Eric, fantastic subject to start with, I found myself watching twice; once for your "narrative" and once to see the form of this amazing thing. I will keep this in my achieve. The engineering is so unique and imaginative. You did credit to the character of this almost unbelievable tool with great workmanship.
-How much air you need to run this?
-Yes
Watching a restoration and drinking afternoon tea. Nothing better.
As usual, interesting tool and nice placement of your humor throughout the restoration process. Thanks for sharing!
Hope you try it on a compressor with enough air one day. I'd guess it needs a diesel unit like they use with pneumatic jackhammers to run how it should.
Looking at the original inlet piping (0:24) it seems to be at least 3/4", so this thing will need quite some air to run at full beans.
Wow, that is awesome how you restored that triple-piston pneumatic circular saw. I have never seen one like that before. It looks much better and works like a charm as well. Great work.
I tip my hat to you sir, you're one of the few people I've actually seen get an easy out to work!
What a beast! The saw is pretty good too I guess.
I find it unbearably funny that the word "Safety" is within the quotation marks of the nameplate lol.
Safety from that era is like flat earth now; a joke laughed at by most, but still believe in by a shocking amount, unlike flat earth, however, safety is reasonable.
Who would have thought that a pneumatic three piston/cylinder saw would be a good idea? And than to look at how it was designed, manufactured and run is another amazing feat. And with all that stated, you find such a saw to refurbish is yet another amazing feat as well... Thumbs Up!
I really like the humorous moments that surprise me while I focus on the work technique.
You already have two talents.
Humor and technical.
Big fan.
The craftsmanship and production value of the parts is incredible. I'm a timber fabricator and we byrn through a few plastic crappt drills every year. I can't help but think that's planned out when I see what kind of rigidity and skookum casing these older tools had.
I’m always impressed by how you keep everything straight and you know how to reassemble
When you record a disassemble it's easy to reassemble.
I felt that spring lol nice job as always
With how many saws and chainsaws you restored that didn't had a shred of safety features this feels like the safest thing you ever handled
All your restorations are perfect, and your videos are great and with a great sense of humor, thank you very much for sharing them with us, I send you a big hug from southern Argentina.
I can listen the whole day to That idle. Sounds verry nice. Great work. Nice tool
I cant tell if I prefer your rougher style of resto, or My Mechanic's perfect restos. I dont wanna choose, so im just gonna watch the both of ya lmao. Much love from Michigan!
That idle is to die for.
Another master restoration on an extraordinary hand tool. I would never get to see these tools if it wasn't for your channel, Eric. Cheers.
Everything was so overbuilt back-in-the-day...and I love it.👊💗😊
I don't know if I should get excited when you produce a new video, but I do. Great job, looks beautiful.
Hiya Eric. It was here, then it was gone, now it's back. Glad the video is back.
Love that idle. I'm keen to see it run at full pressure. Cool resto!
The Angelic sounds and lighting when you smacked the saw blade with a hammer. Awesome.
That thing is awesome!!!!!! I absolutely love what you do Eric!!!!!!!
The noise of the saw motor, and the cutting blade, and the air compressor big enough to run it, makes this most ear-splitting power saw ever.
you keep finding these insane contraptions and that's why your channel is the best of the resto's :D
that and your charm and sense of humor
I felt that spring recoil in my SOUL lol.
Also, that first nut you had to properly bust free was a gods-damned miracle (coming from another denizen of the rust belt)
Love the restoration. That beast needs a plaque that says "I havent had lunch yet. TAG youre it". Thanks for another great video. 👍🏻
My new favorite restoration video. What a beast! 👍 😃
Dude I’d leave that thing chilling on my shelf running, that’s a bad ass conversation starter.
I dont watch this channel to see the right tool used for the right job. I watch because its interesting to see how you are going to use what you have to make the rescue work out in the end. 🍻
That's quite the saw! I'm speechless! WOW!
I Love the tickover sound on that what a cool old tool!
I want to give a big shout out to the hand tool rescue wrench and flat blade screwdriver. I bought them because I thought they were a cool thing to use as a decoration with no real intention of using them. I have more expensive wrenches and screwdrivers that are my go to tools.
I have never owned a better made tool than these two. The wrench is amazing. When everything else was twisting out on a square head that thing held fast and saved an impossible to get part on a vintage car. I use it all the time. I will be ordering a couple more of them. On big screws the screw driver is great, it fits in my hand, does not slip. As I said these are well made tools that are far better than any other brand including snap on.
Hard to believe this beauty was engineered in the 1920s.
My wife said that's the first time she's ever heard you in a video 😆
Really crazy how things were made back in the day
This has got to be one of the kewlest tools done so far.😎😎🏆🏆
Like your videos. I’ve been a welder for 35 years, I will have nightmares watching you weld aluminum, lol
Great job!!! Always a pleasure watching your videos!!! Thanks!!!
I love doing weld repairs on old aluminum castings like this one! Aluminum wheels area also pretty fun, then again, this old cripple really loves to weld lol. Gotta do something with my free time, when my wrecked back will allow.
Great video.....I am spoiled with modern tools! Thanks!
Holy Crap! when you had removed the first bolt I was shocked how BIG the saw was! Great Video!
That was just over-the-top awesome. Thank you!
I FELT each of those spring slips
Thank you for the latest installment of Nightmare Tools !
Looks and sounds like a beast.
Well done mate !
I have the CC's on and I am hooting and hollering. I love you, man. Good, good stuff.
As always, fantastic video. Very satisfying to watch you complete a restoration, especially with the CC on. Do you ever release any with a voice over? Like your own director's cut, kinda lol. Keep up the great work brother, 1M subs is closing in :)
Thanks! Yes, narrated videos are on Patreon.
@@HandToolRescue cool business model
the intro to your videos always makes me smile man haha well played
Every-time I see one of these restorations I can't imagine another one that good or interesting coming along. Great job. Makes me even more glad I came along after these kinds of tools were extinct. A sawyer would go deaf in a week after using this contraption.
Where you keep finding these rarities baffles me. Another great restoration
Very unique saw,have never seen one before.for the age it appears to be quite in Detail of how it was made,seems advanced for the age.your killing it of course on the restoration.great video as always.nice piece.keep it up 😎😎😎👍👍👍
So steampunk and over-dangerous. I definitely love this tool.
I must say I really enjoyed watching your work ❤❤❤