Petromax 826/350 CP question

Discussion in 'Pressure Lamp Discussion Forum' started by Michel, Aug 3, 2020.

  1. Michel

    Michel Subscriber

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    I all
    I have been given this 826 PX which comes from Africa
    I had a look on the gallery but I didn't found any PX which could match
    Who could tell me the production's year of this old (?) beast ?

    the lamp seems to be complet but the glass
    the handle is very rusty but
    I should be able to have it running again

    IMG_9200.JPG IMG_9195.JPG IMG_9196.JPG IMG_9197.JPG IMG_9198.JPG
     
  2. MYN

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    Looks like one with the sicke tank from the mid-1950s. For 'legs' on the lantern frame/collar and four indentations on the fount to fit in.
    Probably 1954...56. Couldn't remember the exact year these were produced.
    They were not produced in great numbers.
     
  3. Alex Smith

    Alex Smith United Kingdom Subscriber

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    @Michel You have done well. It looks to be early 1950's (I am sure others will be better able to date/correct me).

    The base of the frame is from this period, and at first sight looks to be a "Sicke" tank (four legs at the base of the frame, with indents in the tank to fit the four legs into) that was produced early in the 1950's.

    I look forwards to seeing it running. Regards, Alex
     
  4. Michel

    Michel Subscriber

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    thank you all
    I found this post : Different Petromax 826
    I assume this lamp should be from 1954 to 1956 (??)
    for the instant, the fount bottom is far too oxyded to see anything ?

    One question ? What means "sicke tank"
     
  5. Michel

    Michel Subscriber

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    I also seen that no E on the PX logo should be pre 1953 :-k:-k:-k
     
  6. Mackburner

    Mackburner United Kingdom Founder Member Subscriber

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    The Sicke was patented from the 5th October 1952 DE925461 but was only made for maybe two or three years.

    No E in the logo is after 1952.

    ::Neil::
     
  7. LatMag49

    LatMag49 Germany Subscriber

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    Sicke is the German word for beading or indentation,
    French it's nervure.
    No E in G means post 1953.

    Matthias
     
  8. Michel

    Michel Subscriber

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    Ok, after 52/53 and perhaps for 2/3 years in 1954/56
    thank you all
    I will see if I found any number after cleaning the tank
     
  9. Michel

    Michel Subscriber

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    Hi
    there is absolutely not stamping nor scratching on the bottom :-k
     
  10. MYN

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    Sometimes the scratches are really faint and hard to see. Or the bottom might have been overly polished by a previous owner.
    On some of the lanterns from the 1950s, there might not even be any markings.
     
  11. Mackburner

    Mackburner United Kingdom Founder Member Subscriber

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    The G logo was registered 13th November 1953. For some reason I had 1952 in my mind but that was when the EG logo was registered to Graetz AG Hamburg. ::Neil::
     
  12. george

    george United States Subscriber

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    I don't believe the sicke Px lanterns have any numbers or scratch marks on the bottom. There was only a short time that they were made perhaps they didn't see any reason for the scratch dates on the bottom.
     
  13. MYN

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    Perhaps the Sicke was a transitional design change from the older oblong-slotted collar to the later one? Perhaps even experimental?
    I believe the production moved to the Altena factory for a few years before this was made. They might be doing away with scratches during the 50s. Only still no date stampings till the 60s and later.
     
  14. Reinhard

    Reinhard Germany Subscriber

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    I have two Petromax instructions from 1955 and 1956.At that time the lamps were shown as they looked on Petromax instructions for use. The lamps are clearly recognizable as Sicken.
    Regards Reinhard
    IMG_20200807_092750.jpg IMG_20200807_092815.jpg IMG_20200807_092850.jpg 15967866893925879754932963711036.jpg
     
  15. WimVe

    WimVe Subscriber

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    The idea behind the sicke are the feet.
    At this time the heat transfer to the tank was a problem to be solved. So three feet and an aircap was the solution fo that moment.
    Later on we see the ribbed globe cage. The shapes of the collar are well docuented in the German patent: DE1023431

    [​IMG]
    Source: www.petromax.nl
     
  16. Michel

    Michel Subscriber

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    HI Reinhard, thanks for the pictures
    It seems the 350 CP lamp was named 828 in those 55/56 papers, mine is named 826
    Could we assume the production to be only for a year, in 1954 ?

    IMG_91952.JPG
     
  17. Reinhard

    Reinhard Germany Subscriber

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    All 6 types 821,826,523 with spirit preheating and 827,828,829 with quick preheated were manufactured in 1954,1955 and 1956.
    Regards Reinhard 15967903391031625543458938072228.jpg
     
  18. MYN

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    828 is supposed to have a rapid preheater. 826 without it. The sicken design with smooth collar and 4 'legs' plus fount with 4 indentations can be for any of the models, I'd believe.
     
  19. Reinhard

    Reinhard Germany Subscriber

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    Yes quite right. There were 2 different operating instructions. An instruction manual for the models 821,826,523 without quick preheater.And another instruction manual for the models 827,828,829 with quick preheater. So there were six different lamps with the then futuristic design. @WimVe has already explained the purpose of the disign. According to my observation, these lamps occur as often as the lamps with a smooth support frame.
    Regards Reinhard
     
  20. george

    george United States Subscriber

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    I have an Aida 1250 with the sicke design. As stated, the purpose was for better air flow so the lantern wouldn't overheat.
     
  21. MYN

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    While I have an Aida 1350 with a smooth collar but not a sicke. No legs or indentations.
    It has the rectangular slots at the lower part of the collar just like the newer Petromax but without the horizontal cooling ribs. Another transition before the horizontal ribbed design?:D
     
  22. Reinhard

    Reinhard Germany Subscriber

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    @george
    This lamp is rare but not extremely rare. Petromax and Aida brands were manufactured in Altena during the same period. The lamps were identical except for the band names. Two brands but one manufacturer.
    @MYN
    Completely normal. These AIDA lamps with a smooth collar and horizontal ventilation slots were also manufactured in Altena during the same period as the Petromax lamps, which look the same. It's the transition design from the Sicke smooth collar and 4 feet to the ribbed collar. After world War 2 there were only four different collars.
    1950-1954 Vertical ventilation slots
    1954-1956 Sicke, smooth collar and four feet.
    1956-1958 Smooth collar and horizontal ventilation slots.
    1958-today Ribbed collar and horizontal ventilation slots.
    An exception is the small Petromax 830 previously Geniol 150cp with vertical ventilation slots and ribbed collar.

    Regards Reinhard
     
  23. MYN

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    Thanks for the info @Reinhard
    I couldn't find any scratch marks or any markings to indicate the date on the bottom of my Aida fount .
     
  24. Michel

    Michel Subscriber

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    Thank you all for all the informations :D/
     
  25. Michel

    Michel Subscriber

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    Here is the old lady
    I wonder about the great slot under the cage because the tank is very hot after one hour
    this could explain that Px changed the slot position and the size after 1956

    IMG_9222.JPG IMG_9205.JPG IMG_9223.JPG IMG_9224.JPG IMG_9225.JPG IMG_9226.JPG
     
  26. DittmannCz Czech Republic

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    Hello, any advice how to run this lamp? I have not found any i structions...
     
  27. Henry Plews

    Henry Plews Subscriber

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