Am I right? Petromax 827 hood.

Discussion in 'Pressure Lamp Discussion Forum' started by Tony Press, Jul 20, 2024.

  1. Tony Press

    Tony Press Australia Subscriber

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    Am I correct in thinking that this 1937 Petromax 827 hood should not look like this, and that it has been squashed?


    IMG_2151.jpeg

    IMG_2264.jpeg

    Also the case with the hood on this Petromax 900:

    Petromax 900 Little Baby Lantern (incomplete)



    Cheers

    Tony
     
  2. Reinhard

    Reinhard Germany Subscriber

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    The hood is deformed but it is 100% part of the lamp.This is what my 827 from 1937 looks like too.
     
  3. Tony Press

    Tony Press Australia Subscriber

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    I wonder whether it makes a difference to the way it burns? I should try to straighten it, I suppose.

    Tony
     
  4. Martin K.

    Martin K. Subscriber

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    The hood can be straightened by inserting a suitable glass bottle and carefully rolling it back and forth on a hard surface until the posts have straightened. First, you can also use the bottle upside down with the hood over it to stretch it carefully by hand by simply holding the hood by the curved part and pressing it down.
    I have done this several times with good results, even with hoods where some of the posts were broken. Perhaps it would be necessary to heat the posts first to soften the metal. But from my experience this should already be sufficiently the case due to the previous use.
     
  5. Tony Press

    Tony Press Australia Subscriber

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    Thanks, Martin.

    Yet another fettling technique using a bottle!

    I shall give it a go.


    Cheers

    Tony
     
  6. WimVe

    WimVe Subscriber

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    You can also first put a round object in a vice, then put the outer hood over it and press down. This will straiten the first part.
    Then roll it or use some matching pliers to straiten, not stretching, the rest.
     
  7. Reinhard

    Reinhard Germany Subscriber

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    There were 3 different hood caps for this Petromax 827 with Drehrapid. First nickel plated with the Petromax mark, then completely red-enamelled and finally red-enamelled with a chrome-plated cover plate.

    IMG_20240720_134302.jpg IMG_20240720_134310.jpg IMG_20221017_143838.jpg
     
  8. Tony Press

    Tony Press Australia Subscriber

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    @Reinhard

    The cap on mine is the all red enamel (with a few more missing patches).

    I need to do a repair to the top piece of the hood to which the cap fits directly. I will do that before straightening the hood.

    IMG_2267.jpeg

    Cheers

    Tony
     
  9. JEFF JOHNSON

    JEFF JOHNSON United Kingdom Subscriber

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    That looks repairable.
     
  10. Tony Press

    Tony Press Australia Subscriber

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    I decided that the least intrusive and straightforward way to overcome the corroded holes in the hood was to make a brass plate that would sit on top, under the cap and sandwich the hood when the cap screws were used to affix the cap.

    I used brass from a wrecked Tilley X246B tank:

    IMG_2272.jpeg

    I hand cut and sanded the brass using the reinforcing plate (Verstärkungsplatte, part 116) as the template and drilled two 3mm holes for the screws.

    IMG_2273.jpeg


    This will work well, and it has the “T” of the Tilley to denote its origin.


    Cheers

    Tony
     
  11. Tony Press

    Tony Press Australia Subscriber

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    Hood now straightened and back together.

    IMG_3016.jpeg

    IMG_3017.jpeg

    IMG_3018.jpeg


    Cheers

    Tony
     
  12. Reinhard

    Reinhard Germany Subscriber

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    @Tony Press
    Well done :thumbup::thumbup:

    Could you show a picture of all your Petromax that are equipped with "Drehrapid" ?
    From the front and from above and if still visible the tank scratches ?
     
  13. Tony Press

    Tony Press Australia Subscriber

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    @Reinhard

    I will put photos of this lantern in the Reference Gallery later this week (I will do the photographs tomorrow).

    I’ve already posted one in the Reference Gallery (Petromax "Rapid" 828 (1938)) and I think the only other “Drehrapid” I have is a “5 8” 882 (Petromax 882 “Rapid”), but I’ll check.


    Tony
     
  14. Reinhard

    Reinhard Germany Subscriber

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    @Tony Press

    Ok,thank you.
    Was there previously an exclusive Petromax dealer in Australia ?
    Maybe with their own nameplates ?
     
  15. Tony Press

    Tony Press Australia Subscriber

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    @Reinhard

    I’ve never come across an Australian nameplate on a Petromax.

    Unlike the UK, Aladdin Industries (Australia) did not have a relationship with Petromax in the pre-WWII period. Rather, they had a relationship with Radius for the supply of Aladdin-branded pressure lamps.

    Prior to WWII a company called “Danks” in Sydney marketed Petromax quite heavily so they may have been the Australian agent.

    I’ve not looked in detail at the post WWII period, but again, Aladdin Australia did not market Petromax, and Petromax were being sold retail by Nettlefold in Melbourne (who were the “N” in KN—> Kayen).

    Tony
     
  16. Reinhard

    Reinhard Germany Subscriber

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    @Tony Press

    Quite interesting information.

    Thank you again.
     
  17. Tony Press

    Tony Press Australia Subscriber

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  18. ColinG United Kingdom

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    Grand job you've done on the hood, Tony.
     

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