Improvised Op.111/7 windshield

Discussion in 'Fettling Forum' started by kerophile, Feb 5, 2014.

  1. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Hi, there has been some recent correspondence about Optimus 111 silent burner windshields:

    https://classiccampstoves.com/threads/26567

    One of the designs described is a "short" model windshield fabricated from seamless brass tubing approx. 70mm ( 2.75in) diameter and about 30mm (1 and 3/16in.) deep.

    Here are some photos of the windshield as fitted to an ex-military Op.111/7 stove:

    1391616917-St.293-WSield-1.jpg 1391616926-St.293-WSield-2.jpg 1391616935-St.293-WSield-3.jpg 1391616946-St.293-WSield-4.jpg 1391616957-St.293-WSield-5.jpg

    I decided to try to make a replacement windshield of this design. I saw a likely starting point in a local Charity (Thrift) shop. It was a small sugar bowl made from 18/8 stainless steel, and priced at £0.39 (US $0.60).

    1391616966-St.293-WSield-6.jpg
    1391616975-St.293-WSield-7.jpg


    The dimensions were about right at 70mm O.D. with a wall thickness of 0.9mm. The height was around 46mm and there was rolled top finish.

    I cut up the sugar bowl with a hacksaw and produced a new windshield and spare spirit-cup:

    1391616991-St.293-WSield-8.jpg

    1391617011-St.293-WSield-9.jpg

    Here are a series of photos showing the improvised windshield fitted on the Op.111:


    1391617029-St.293-WSield-10.jpg 1391617042-St.293-WSield-11.jpg 1391617055-St.293-WSield-12.jpg 1391617083-St.293-WSield-14.jpg

    Best Regards,
    Kerophile.
     
    Last edited by a moderator: Jul 2, 2015
  2. Doc Mark

    Doc Mark SotM Winner Subscriber

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    Hi, George,

    Excellent and very elegant solution to creating a new windscreen for the 111T!! Great job, and many thanks for sharing it! Take care, and God Bless!

    Every Good Wish,
    Mark
     
  3. shagratork

    shagratork United Kingdom Moderator, R.I.P. Subscriber

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    Hello George

    Great idea and a great job.
    Sugar bowls will be on my list when I am next at a car-boot sale.
     
  4. itchy

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    Perfect fit, you got a good eye (or two).
     
  5. Rick b

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    Great job George. You've come up with some pretty good thrift store finds. And this one you got a two for one. Perfect.
     
  6. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Hi, I have done some additional research.

    This windshield has operated well, outdoors in a fresh S. wind, on two different silent Op.111 stoves.

    I have also been able to track down a couple of new sugar bowls at £1.37 (US $2.24) each.

    These are marked up as 140ml / 5oz. stainless steel sugar bowls. One is branded "Sunnex", the other "Catering Classics" but both probably came from the same Chinese factory.

    This "fix" offers an economic way of providing a windshield for a silent Op.111.

    Best Regards
    Kerophile.
     
  7. Chef BC

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    Very good and excellent job. Too bad it is necessary to sacrifice an otherwise useful item. My attempt with an aluminum can just really didn't turn out right. :?
     
  8. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Good Day, I can assure our readers that no "sacrifices" were involved in the successful completion of this Project.
    Informed consent is the key principle behind our re- purposing programme. No utensil is accepted on the function re-assignment programme without first receiving extensive information and counselling about their future role.
    Independent research has shown that many bowls relish the prospect of a new life as a stove windshield, with its prospects of excitement and foreign travel, compared with their current life as a receptacle for empty calories.
    Yours sincerely
    Kerophile.
    Programme Director.
     
  9. SMolson

    SMolson Subscriber

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    Nice work on the draughtshield, the spare spirit dish would make a great sugar bowl for 1, lol.

    The bowl's shape appears to cover (rise up) further above the burner than the original brass design, providing improved protection of the outer cap.

    lol Chef - try a Friskies cat food can (368 g) if you can't source a sugar bowl, they fit beautifully over the rim of these burners (due to horizontal lip inside perimeter). Your cat will thank you too.
     
  10. loco7stove

    loco7stove Subscriber

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    Hi George

    Nicely done :D/ :D/ :thumbup:

    Excellent inspirational work & looks the buisness too :clap: :clap: :clap: 8) :thumbup:

    Stu :D :thumbup: .
     
  11. snwcmpr

    snwcmpr SotM Winner Subscriber

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    Great work George, and as Programme Director you have an inspired dedication towards the re-introduction of re-used goods.
    Well done and well said.
    An inspiration to say the least.

    Ken in NC