Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Page 2 of 2 FirstFirst 12
Results 16 to 22 of 22

Thread: Kero blow lamps

  1. #16
    Join Date
    Mar 2009
    Location
    Brisbane
    Posts
    356

    Default Primus 849 Unit

    Hi again Steve,

    is there any pump attached to the unit that we cannot see in the photo?
    What do you think the perforated cylindrical (steel?) tube is for? to take a missing handle?
    How do you think the unit works ?

    This unit may not actually be a blowtorch, but rather an alcohol (methyl alcohol) fueled blowtorch pre-heater, or similar.
    Or it may be a jewellery torch, meant to have a little flame, but utilised a mouthpiece and mouth blown air to generate a tiny blowtorch flame. We used to make these in the old days from a wick in a Vegemite jar full of metho, and plastic tubing and a glass tubing "drawn" to a point.
    But as i recall, you could buy manufactured burners.
    Caution on the quality of alcohol.
    Read up on this on the web.

    I would still think it is probably alcohol fueled, but i could be wrong.
    Read Zangobobs article on mini-torches.
    These mini torches and particularly alcohol torches suffer badly from nipple fouling due to the additives or contaminants, including water, in the fuel.
    My Optimus 99 camp stove (Shellite) was great until it got a bit cloggy (technical term).
    The unit had a pricker built in to the fuel adjustment, so that you could clear it by using the fuel adjuster, then turn the heat back up immediately. Great design. Absolutely fantastic stove; but I now use a Kovea micro hiker, and butane/propane!

    I would be emailing one of the collector's associations to get actual information on the exact unit, and use the correct fuel.
    This may take a while, but someone out there, as on this website (there are some very knowledgeable sleepers out there), has probably come across this unit before, and has the information.
    Try an email to Classic Camp Stoves, Zangobob, or Blowlamps Unlimited, or Fogas, or the French sites.
    As a very last resort, ask Primus.SE, who may refer you to some resource!

    You have us all curious now.

    Good luck
    cheerio, mike

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. #17
    Join Date
    Oct 2001
    Location
    ACT
    Posts
    455

    Default

    THanks for the saftey advice Ian, there are plenty of horror stories of these things around, so Iam pretty careful and I don't want to add to them - and I already have a gas torch....I just like old school stuff, and why I am partial to hand tools.

    Mike - I probaby should have taken a few more pics. however basically what you see is what you get. there's no pumps or anything else, just a filler cap, tube out the top of the tanks with jet at the top. it also has a small well at the base of the tube for preheating. The tube/burner Cap screws on to the top (connected by chain) and I understand to extinguish/seal it you need to put the cap on and let pressure out of the tank. The brass perforated (shroud) bit slides off a retaining pin and it fits snugly on the top of the tube to form the burner.

    Will have to try a few more web sites, thanks for the suggestions.

    Its in pretty good condition overall, and I like your idea of a jewlers torch - but could be a bit big for that, certainly with the shroud in place. It has a very fine jet which also fits with the theory that its a alcohol or maybe shellite torch (or at least some type of fuel that has a higher volatility than kero).

    As for cleaning jets in a couple of my larger kero torches I found a brass wire brush with fine wire that I had in a box and it did a good job cleaning the jets on those.

    Regards
    Steve

  4. #18
    Join Date
    Feb 2003
    Location
    back in Alberta for a while
    Age
    68
    Posts
    12,006

    Default

    Quote Originally Posted by Zsteve View Post
    Mike - I probaby should have taken a few more pics. however basically what you see is what you get. there's no pumps or anything else, just a filler cap, tube out the top of the tanks with jet at the top. it also has a small well at the base of the tube for preheating. The tube/burner Cap screws on to the top (connected by chain) and I understand to extinguish/seal it you need to put the cap on and let pressure out of the tank. The brass perforated (shroud) bit slides off a retaining pin and it fits snugly on the top of the tube to form the burner.

    Will have to try a few more web sites, thanks for the suggestions.

    Its in pretty good condition overall, and I like your idea of a jewlers torch - but could be a bit big for that, certainly with the shroud in place. It has a very fine jet which also fits with the theory that its a alcohol or maybe shellite torch (or at least some type of fuel that has a higher volatility than kero).

    As for cleaning jets in a couple of my larger kero torches I found a brass wire brush with fine wire that I had in a box and it did a good job cleaning the jets on those.

    Regards
    Steve
    Steve
    your torch is almost certainly designed for shellite, the small well is the giveaway.

    just be aware that the jet is sized for the fuel the torch is supposed to use.
    for example, kero jets need a larger orifice compared to shellite jets
    regards from Alberta, Canada

    ian

  5. #19
    Join Date
    Mar 2009
    Location
    Brisbane
    Posts
    356

    Default

    I am a bit curious as to why it has no handle.
    And I cannot see any fuel adjusting knob.
    So , it still may be an alcohol unit, but the three air holes suggests Shellite or white petrol.
    The outlet screw on cap also suggests alcohol.

    If the top feed tube was vertical ie without a bend, it could be a bunsen burner.
    Barthel and others made these.
    I wonder if someone has bent it off vertical?

    Anyway, a very nice Primus to have.
    Please put us out of our curiosity misery.

    cheerio, Mike

  6. #20
    Join Date
    Oct 2001
    Location
    ACT
    Posts
    455

    Default

    A couple more pics. So you should be able to see how it would be with everything in the right place. Internally it has wicking that helps draw the fuel up to the tip.

    HAve now tried it with metho a couple of times and it generates plenty of pressure and sends a stream of gas out but it will not light til the stream has almost died down. Possibly these are finicky to get going but maybe its not the right fuel.

    Will try and track down some shellite sometime and see how it goes.

    thanks
    Steve

  7. #21
    Join Date
    Mar 2009
    Location
    Brisbane
    Posts
    356

    Default

    Hi Steve,

    Klas Jaederfeldt from Sweden suggests that this may be a ski-wax lamp, and probably uses petrol.

    " every lamps in Primus 800 series is for Benzin (petrol) and I think the small ones is for skivax. i haven any drawings for this lamp"


    Cheerio, Mike

  8. #22
    Join Date
    Oct 2001
    Location
    ACT
    Posts
    455

    Default

    thanks Mike.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Log lamps
    By Zarguld in forum WOODWORK PICS
    Replies: 1
    Last Post: 3rd April 2009, 07:11 PM
  2. Standard Lamps
    By boydy=number1 in forum WOODTURNING - GENERAL
    Replies: 6
    Last Post: 3rd November 2008, 11:03 AM
  3. Old Household Kero tanks
    By smidsy in forum NOTHING AT ALL TO DO WITH WOODWORK
    Replies: 14
    Last Post: 7th April 2005, 10:37 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •