Sievert unknown model

Discussion in 'Other Models' started by optipri, Feb 22, 2021 at 10:52 AM.

  1. optipri

    optipri Subscriber

    Offline
    Joined:
    Oct 28, 2005
    Messages:
    578
    This one is probably not the best for backpacking with a diameter of 32cm and a hight of 40cm. The tank capacity is 5-6 litre I guess. Compare it to the lamp converted Primus no 70 beside.
    I have never seen it in any catalogue so don't know the model number. This is the second I have ever seen, a frind of mine owns the other. Sievert made a lot och custom appliances so this is probably one. It has 4 feet and should obviously be fixed by them.

    Bo

    1613916113916.jpg IMG_20210221_142100.jpg IMG_20210221_142030.jpg IMG_20210221_142107.jpg IMG_20210221_142048.jpg
     
  2. Ian

    Ian Subscriber

    Offline
    Joined:
    Jul 26, 2004
    Messages:
    6,837
    Location:
    West Yorkshire
    I can't help you with the big Sievert, I'm afraid, but I'd be very grateful for more info re the Pri 70 lantern.
     
  3. Conny

    Offline
    Joined:
    Apr 20, 2008
    Messages:
    2
    Its the burner for Sievert 591

    Conny
     

    Attached Files:

  4. kerophile

    kerophile United Kingdom SotM Winner Subscriber

    Offline
    Joined:
    Sep 23, 2004
    Messages:
    12,561
    Location:
    Far North of Scotland
  5. optipri

    optipri Subscriber

    Offline
    Joined:
    Oct 28, 2005
    Messages:
    578
    Yes, of course it is. Why did I miss that? Too long ago since I was looking in the cataluges. Thank you Conny. So now "only" trying to find the rest of it.

    The Primus lantern is a customized one made by a collecting friend in Japan. No high light output but a cute little lamp.

    Bo
     
  6. presscall

    presscall United Kingdom SotM Winner SotY Winner Subscriber

    Offline
    Joined:
    Aug 25, 2009
    Messages:
    10,345
    Location:
    Lancashire, United Kingdom
    Cute indeed. Priming cup and self-pressurising. Looks like a Svea 123R valve installed in a Primus 70/early 71 tank. The absence of any self-pressurising naptha lanterns on the market does rather suggest it’s not an idea that designers saw had merit. A 0.32mm or even 0.23mm stove jet would overpower a mantle and reducing the jet orifice to an appropriate size would restrict thermal feedback and consequently self-pressurisation output. A mini-pump and cap could improve matters.

    Sorry, Bo, a digression from your stove subject, but placing that tasty morsel in the photo was tantalising.

    14969023-01FC-497C-994A-43C6BE5F83C9.jpeg

    John
     
  7. optipri

    optipri Subscriber

    Offline
    Joined:
    Oct 28, 2005
    Messages:
    578
    Of course I should have but a 70 stove beside instead, but I had the lamp available and easy to put there.
    Your assumptions about the design sounds sensible. The only one I know about is Tito-Landi but I have no experience from that brand.
    This one is not optimal in its design, maybe gives 50cp or so.

    Bo
     
  8. Tantra

    Tantra Subscriber

    Offline
    Joined:
    Mar 4, 2018
    Messages:
    361
    Location:
    China


    I catch your username in online trade website