What is this acetylene burner for?


Look at the tank and torch in the top right corner of this picture:
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This is a little acetylene tank, regulator and torch. This is clearly
something that was never meant to use oxygen.
My question is what is this item for? Weedburning? Does the tank look
like I can exchange it at the usual places?
i
Reply to
Ignoramus31989
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That's an air/acetylene torch , commonly used by plumbers to sweat solder copper pipe fittings . You don't really have anything in the photo for scale , but that looks like a "B" tank - note the male threads on the valve , most larger acet tanks have female , which just happens to be the same one used for propane tanks ...
Reply to
Snag
Plumber's torch. Used for soldering joints in copper pipe.
Pros don' fool 'round wit' no propane, man. d8-)
Reply to
Ed Huntress
Iggy:
You can look up "Turbo Torch", and that will give you some insight as to what that torch can be used for.
_kevin
Reply to
karchiba
Snag, the item for scale is a torch striker. Thanks, I have a better understanding of this now.
i
Reply to
Ignoramus31989
Iggy:
You can look up "Turbo Torch", and that will give you some insight as to what that torch can be used for.
_kevin
What Iggy has is called a Prestolite torch. The turbo torch has a different sort of mixer that allows it to produce a hotter flame but with less control.
The prestolite torch is plenty hot enough to melt small amounts (>1oz) of brass, gold, silver and has plenty of heat for silver brazing moderate size items. Bronze brazing would be pushing it on all but the smallest objects.
It is one of the common tools in the jewelery industry.
It will soft solder 3" copper pipe fittings without much trouble.
Paul K. Dickman
Reply to
Paul K. Dickman
Paul, not really knowing anything, besides some google searches, it looks a little bit different from prestolite torches. I will look at it closer tonight. In any case, a regular O/A set is better than this torch.
i
Reply to
Ignoramus31989
It's a fairly common "plumber's torch" ... it uses acetylene with plain air ... not much different than portable propane torch, but a bit hotter. Without bottled oxygen, or even compressed air, it can't generate the heat needed for welding. I've got one just like it in my shop at school. Dates from the 1950's at least, but still works fine. I see these same cylinders all the time at the welding supply getting refilled, so apparently they're still much in use.
At the bench I use a compressed air plus natural-gas torch for most heavy soldering and similar work ... I seem to have more control over the flame with that torch, but it's not portable. I've never compared the relative heating capacity of the two torches.
Dan Mitchell ============
Dan Mitchell ============
Reply to
danmitch
They have been making them for dogs years and there are several minor variations. The handle though, will be an inverted tear drop of red bakelite. The old ones had the valve at the top of the torch body. The new ones have the valve screwed on at the bottom of the handle.
An O/A rig will do more things than this, but there are times when the softer flame or the portability of one tank is useful.
Paul K. Dickman
Reply to
Paul K. Dickman
If you go back a lot more years, you will find this was used for acetylene headlights on motorcycles--hence it was called an "M tank." There was a smaller used for cycle headlights, called a "B tank."
Reply to
Leo Lichtman
You have them reversed. The "B" tank holds 40 cuft. The "MC" tank is the small one. It holds 10 cuft and has an angled connection.
Paul K. Dickman
Reply to
Paul K. Dickman
I thought B tanks were used on buses, and such.
i
Reply to
Ignoramus31989
My tank, which looks just like the one in the OP's photo, is stamp-labeled only "40 cu ft, TW-23-8, DOT-8", plus a serial number; and it has a stick-on label saying "Acetylene, Dissolved". It has a valve in the tank stem ahead of the regulator, and another on the torch itself.
I have it mounted in a wooden stand, still quite portable, that adds some stability to the vertical cylinder (our safety department doesn't like any unstabilzed cylinders). The stand's about a foot square.
The torch is a "Prest-O-Lite" with the typical teardrop shapped maroon plastic body. It has several interchangeable tips. The thing was here when I first came to the university in 1964, and it looked old then. It still works fine. I've had the cylinder refilled/exchanged a couple times in the last 30 years.
Dan Mitchell ============
Reply to
danmitch
It looks just like my Prestolite.
Reply to
Don Foreman
Don and Paul, this is exactly what you guys said it was, it is a Prestolite.
i
Reply to
Ignoramus31989
I use mine for soft soldering as well as silver brazing small parts.
Reply to
sparky
Many years ago, I bought a similar torch at a garage sale. It is very successful. The tips that came with, were too small to be useful. I got a turbo tip, which was much hotter. Since that time, I've found Mapp gas will do much of what I need to do. Mapp is also much more portable, and the self lighting feature is good.
That is a B tank, B for Buick. The smaller tank which I have, is MC tank, for Motor Cycle. Acetylene used to be used for headlamps.
It's a good torch, if a bit stone age technology. You can get a refilled tank for several dollars at a welding supply. I think my MC tank cost seven bucks or so, exchange.
Reply to
Stormin Mormon
Oxyacetylene will burn much hotter.
A Mapp torch for $40 from Home Depot will do much the same job, and a lot more convenient.
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$40 one has one flame size. The $65 one had adjustable flame. Both are good.
Mapp torches don't work when the tanks are cold. They also don't work right, when used upside down.
Reply to
Stormin Mormon
That looks like a brazing unit for compressor copper pipes - e.g. out side of the house - the input cold an output hot units. Interesting on mine - Heat pump. The hot line is small and bare. The cold one covered and big.
Odd - when they switch - I suppose (have to check this year) the hot is in the cold one and so on. Those pipes.
Martin
Martin H. Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net "Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal. NRA Second Amendment Task Force Charter Charter Founder IHMSA and NRA Metallic Silhouette maker & member. http://lufk> Look at the tank and torch in the top right corner of this picture: >
Reply to
Martin H. Eastburn
And in general thinking - you could heat metal with it. Expand rings or balls as needed.
Martin
Martin H. Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net "Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal. NRA Second Amendment Task Force Charter Charter Founder IHMSA and NRA Metallic Silhouette maker & member. http://lufk> Leo Lichtman wrote:
Reply to
Martin H. Eastburn

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