Bialaddin 310

Discussion in 'Pressure Lamp Discussion Forum' started by Captain Slog, Oct 31, 2025.

  1. Captain Slog Romania

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    I was gifted this Bialaddin 310 today. It had been hanging above a workbench for over 20 years and was still half full of stinking Paraffin.
    It looks complete, and the glass is intact. The hood has suffered from some damage to the Enamel.

    The painted tank is a different shade of green to the hood which seems strange, it may have faded down over the years.

    I've cleaned it up and stripped it down as I am going to purchase a seal kit and mantle for it.

    Can anyone tell me how to open up the tiny hole in the end of the needle tube? (please see photo)

    Should I leave the tank as-is or try to find some paint to match the hood?

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  2. Henry Plews

    Henry Plews Subscriber

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    Nice lantern. Look after that original globe, repro replacements aren't cheap.

    If turning the control knob doesn't work, it's probably the end of the cleaning needle which has broken off the rest of the wire and is blocking the hole in the vapouriser. A new wire, available from base-camp will do the job.
    In the meantime, you could try heating the end, then holding the vapouriser vertically, tap it sideways against something solid like a vice.
     
  3. JEFF JOHNSON

    JEFF JOHNSON United Kingdom Subscriber

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    Welcome aboard!:thumbup:
     
  4. Captain Slog Romania

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    Thanks for your kind welcome.
     
  5. steerpike451

    steerpike451 United Kingdom Subscriber

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    You have a very nice all original 310 from the first two years of production (1954-56), including (as @Henry Plews said) the correct, original and nowadays rather rare glass.
    That strange slightly metallic sage green is the correct original colour, only used on this model. It never did match the hood. 20240826_105421.jpg
    For comparison- the 310 on the right (dated 1957) showing the original paint: the one on the left('56-'57) has been repainted. s-l1600-7.jpg
    An earlier shot of the 310 on the left, showing why it was repainted... again original colour under the flaky black.
    The paint on yours looks to be in good condition- I personally would't refinish it.
     
  6. Captain Slog Romania

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    I've managed to open up the tiny hole at the end of the vaporizer tube.

    Is the end of the needle supposed to protrude through the hole when fully inserted? And is the needle tapered at the tip?

    Does the needle seen here seem correct?

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  7. Henry Plews

    Henry Plews Subscriber

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    Idealy, the needle should protrude up to about 0.5mm.

    According to the patent drawing, the "needle" is not tapered.
    Willis & Bates vapouriser.jpg
     
  8. Captain Slog Romania

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    Got my Bialaddin 310 working today after some light restoration work and a full seal kit replacement.

    One small problem has been found, even though I have replaced all the seals fuel is getting into the pumping chamber presumably past the none return valve

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  9. podbros

    podbros United Kingdom Subscriber

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    Looking good :thumbup:

    the nrv on these can take a while to bed in ; the viton ones are a little bit firmer?

    if you stretch the spring to try and help it seal then do it carefully or a little at a time ? best not to if you can help it.
    you will have to empty the tank of fuel but then you can do a dunk test in a bucket of water and look for bubbles:thumbup:

    regards
    pb
     
  10. MYN

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    That's a good looking one after the restoration. Making a heirloom lantern run again after all these decades must have given a real satisfaction.
     

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