1912 Primus 1008 (1005) harp lamp

Discussion in '1005' started by Conny C, Feb 3, 2016.

  1. Conny C

    Conny C Sweden Subscriber

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    Hi all,

    Here is my example of the Primus 1005 lamp. This version with a harp and glass globe shade, is designated as Primus 1008 in the catalogues; and mine is marked B, therefore made in 1912.
    This lamp came to me in extraordinary good condition. Just had to wipe dust off with a cloth and it was ready for lighting. I spend a lot of time and effort though for finding someone who could reproduce the cracked globe shade that came with this lamp.
    Eventually I found two glass workers that made a batch of this globe, that also suited the Lux DH lamps. Kind of historic moment for me to fetch these globe shades at Bergdala glassworks, probably only miles from where the original had been made, at least 103 years before.

    As said before a Lux type of burner giving 200 - 300 CP output, depending on how much pressure is applied (according to a 1913 catalogue). A very well built lamp and a good runner.

    /Conny

    1454529506-Primus_1008_lamp.jpg


    1454529506-Primus_1008_lamp.jpg 1454531965-Primus_1008_lamp_1913_catal.jpg 1454529694-Primus_1008_lamp_lit_mantle.jpg 1454529711-Primus_1008_lamp_lit.jpg 1454529856-Primus_1008_lamp_parts.jpg 1454529934-Primus_1008_lamp_without_harp_shade_and_mantle.jpg 1454529984-Primus_1008_lamp_burner.jpg 1454530067-Primus_1008_lamp_pre_heater_cup__jet_shield_and_lower_part_of_the_flame_spreader.jpg 1454530095-Primus_1008_lamp_pre_heater_cup.jpg 1454530132-Primus_1008_lamp_jet_and_jet_shield.jpg 1454530189-Primus_1008_lamp_manometer.jpg 1454530225-Primus_1008_lamp_fuel_filler_cap_with_pump_threads_and_air_release_screw.jpg 1454530267-Primus_1008_lamp_logo.jpg 1454530289-Primus_1008_lamp_Primus_logo_1.jpg 1454530310-Primus_1008_lamp_Primus_logo_2.jpg 1454530365-Primus_1008_lamp_burner_flame_spreader_1.jpg 1454530386-Primus_1008_lamp_burner_flame_spreader_2.jpg 1454530657-Primus_1008_lamp_unllit_mantle.jpg 1454530411-Primus_1008_lamp_pre_heating_flame.jpg 1454530721-Primus_1008_lamp_burner_bunsen_flame.jpg
     
    Last edited by a moderator: Apr 1, 2017
  2. joakim.stromberg

    joakim.stromberg Subscriber

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    Absolutely fantastic Conny
    Joakim
     
  3. Michel

    Michel Subscriber

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    Magnifique really
     
  4. Conny C

    Conny C Sweden Subscriber

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    Thanks guys, Yes I agree, a "really fantastic" lamp :) !

    /Conny
     
  5. Claus C

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    Stunning nice lamp. I like that type of burner a lot :thumbup:

    Claus C
     
  6. Nils Stephenson

    Nils Stephenson Founder Member

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    Very nice to see Conny. I like the way Primus still kept the same ideas for the frame 20 years later when they made their 'new' frames.

    A couple of questions about running the lamp.

    What mantle do you use? I havn't had any success getting a mantle to work with my 1005.

    What pressure are you running in the flame shot you show? I think my jet must be totally worn out, as it gives too much flame at virtually no pressure. Also, do you have any idea what the jet hole size should be?
     
  7. Conny C

    Conny C Sweden Subscriber

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    Hi Nils,

    I used a 0,25 mm needle for the jet orifice and it just made it, so I think it might be the same as on the Lux burner. In the image with the unlit mantle I used a E&G wick burner mantle.
    Too short and a bit too wide. In the lighting try I used a 500 CP soft mantle and put that on a upper ceramic holder from an Aladdin upright gas mantle.
    It shrank too much and was too slim to pass over the flame spreader but I used only low pressure and it worked okay for a "money shot" anyway.
    Probably one can use 800 CP soft mantles to fit?
    The pressure used in the Bunsen image was just above 0,5 kg/cm2, and below that when using the mantle. My experience with the Lux DH burner is also that you only need pretty low pressure to get it going.

    /Conny
     
  8. JEFF JOHNSON

    JEFF JOHNSON United Kingdom Subscriber

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    An excellent example! :thumbup:
     
  9. phaedrus42

    phaedrus42 Subscriber

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    A beautiful and fascinating lamp. The burner design is reminiscent of the silent stove burner.
     
  10. Tony Press

    Tony Press Australia Subscriber

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    What a beautiful lamp! :mrgreen:
     
  11. Pod Bros

    Pod Bros Subscriber

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    Hi Connie!
    That is a lovely Lamp indeed! 1912!.. :shock: .. Goodness me!!..Well done!.. :)
    I am still amazed by the design of all Lamps and looking at yours also by the simplicity of the working parts...
    ....Do you have to use an external pump to add pressure?.... Also the small elliptical object hovering above the mantle/burner area, I am assuming that is the generator?.. If so then what might it look like in there and how does it mix and work??.. :-k ..Your photos are presented with a lot of care and detail but also the right order for curious Lamp hungry eyes, that is the only reason I am able to ask these questions!.. :) ...All this is very new to me and will be for some time to come, so all I can do is wonder...and Ask!!!.. :)
     
  12. Carlsson

    Carlsson Sweden Admin/Founder Member

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    PodBros, not Connie!
    That's a girls name, isn't it? [-( ;)

    Regarding the vapouriser/generator, you are correct.
    Primus copied the Lux burner, and you can see how it is constructed in a sectional drawing a bit further down in
    The liguid fuel transform into vapour in the thicker feeding tube and in the ball (which is oval in the Primus lamps), and then travel along in the thinner tube which end in the jet just below the burner which is a very brilliant and simple device. That's where the mixing take part.
     
  13. Pod Bros

    Pod Bros Subscriber

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    ... :oops: ..Sorry Conny!.. :) ... Thankyou Mr. Christer for pulling me up short on that one..You are familiar with some of my foibles?.. ;) ..
    ...Ah, :idea: ingeniously simple when you see it laid out, and the sealed air tube is the masterstroke, ..Hmmm.. :-k
    ....How much earlier is the Lux design then?
     
  14. Conny C

    Conny C Sweden Subscriber

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    Hi PodBros,

    The Y-ending is important in Sweden and indicate a male name ;) !
    The Lux burner was at least present in lamps in 1902 (seen in a Lux 1902 catalogue). In this [url=http://0flo.com/index.php?threads/8971 you can see it present on a Lux DH lamp of mine.

    /Conny
     
  15. David Shouksmith

    David Shouksmith United Kingdom Founder Member

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    Similar thing when someone is called 'David' and people immediately assume your name is 'Dave'. :rage:

    No, if it was Dave, I'd have written Dave... :whistle: ](*,)
     
    Last edited by a moderator: Mar 31, 2017
  16. Pod Bros

    Pod Bros Subscriber

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    Yeah, I've probably done that as well.. :roll: ..
    ...Ok, off to the naughty corner again... :whistle:
     
  17. Carlsson

    Carlsson Sweden Admin/Founder Member

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    Lux presented this burner in 1901, so about ten years before Primus tried their first lamp.
    However, I'm not sure we know exactly when Primus first sold these lamps with their version of the Lux burner.
    The 1005 lamps Conny and Nils have in here are both dated 1912.
    But mine doesn't have the date stamp, and since Primus started with the dating of their products in 1911, it's possible that mine and other un-stamped are before this.

    Regarding your question about an external pump, the answer is yes. They use an external pump.
    It attach to the un-plugged tube at the filling lid.
    It's similar to an old Coleman lamp, i.e. the lid has a simple NRV in the form of a loose check ball, and it is sealed "for real" with the air screw once pumped up.
    A regular bicycle pump works fine:

    1454690088-1005.jpg
     

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