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  1. #21
    AgX
    AgX is online now

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    Bob,

    Those photos look like stills from some `weird professor´ movie. So, in case that emulsion thing won't work, there still is Hollywood...

    I like those filaments in the bulb.

  2. #22

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    Quote Originally Posted by AgX View Post
    I like those filaments in the bulb.
    Looks like the filaments are a heat-wire vacuum guage...

    Bob - there's no shame in failure. How better for us all to learn. And if I get around to working on silver electrode, I'd be happy to share my findings. Good or not so good.
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

  3. #23
    rmazzullo's Avatar
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    Quote Originally Posted by AgX View Post
    Bob,

    Those photos look like stills from some `weird professor´ movie. So, in case that emulsion thing won't work, there still is Hollywood...

    I like those filaments in the bulb.

    OK...I have to nip this in the bud before it gets out of hand.

    Sorry folks, those photos are indeed movie stills...I hope some of you picked up on the wink () the first time around. I couldn't resist the urge. Judging from the spike in hits to this thread, I should have done this on April 1st.

    ---------------

    Kirk,

    I have to study and understand more about electrochemistry before I can really contribute to these discussions.

    Bob M.

  4. #24

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    Bob - OK, feel free to ask. But I have to admit electrochemistry is not one of my strong points! But I do enjoy instrument design.
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

  5. #25

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    Bob and Kirk,
    Those stills actualy remind me of (my memory of) the Chem Lab for my freshman Q.A. course in 1966! Things were alot different back then!
    Bill

  6. #26

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    PE - do you have some example patents to recommend looking at for this methodology?
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

  7. #27
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    None whatsoever. Sorry.

    This, the Kodak kettle design and other arcana are deep dark manufacturing secrets.

    PE

  8. #28

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    Could you look at US 3505068 - it looks similar. It uses a "buried iodide emulsion"
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

  9. #29
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    The 1970 reference in that patent, and the names of the inventors tell me immediately that it is not a "modern" emulsion, but rather was just at the turning point of many of these techniques. For some reason I could not view the whole patent. I'll check later at the US patent office site.

    PE

  10. #30

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    There's another more recent one I think that uses "core shell" techniques. I'll see if I can find it.
    Kirk

    For up from the ashes, up from the ashes, grow the roses of success!

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