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Thread: O/T HO Scale 10-stamp Battery ('Mill')

  1. #1
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    Default O/T HO Scale 10-stamp Battery ('Mill')

    (Admins please remove if not appropriate: I couldn't find anywhere else to place it; it's a 'structure' but not 'N')

    AT LAST I'VE GOT ONE!! (A pair of Stamper Batteries that is)

    As some of the membership will know, for many years I have been using 1;148 ('British' N-scale) to model the local underground gold mining industry. This intention has resulted in the creation of several layouts based on that theme, the most recent being Te Kereru Mining and Investment Co. Ltd.; a layout which has made its appearance on this site at various times.

    The plant / machinery used to extract the gold (and sometimes silver; both metals co-exist in some situations) is very specialised and for years I have been trying to create a 1:148 scale example of the five-stamp batteries (Correctly 'Californian'-type stamper batteries') which is a major part of the process. These were prominent in New Zealand's underground gold mining industry for the 1852-1960 period.

    Stamper Batteries are actually quite complicated items and frustrating to try and 'hand-build' and after numerous unsuccessful attempts I eventually gave up and purchased a two-battery example from an American manufacturer.

    The new arrival was / is HO scale (1:87), so is somewhat larger than 'N', but ultimately that detail wasn't important, 'cos...

    I FINALLY HAVE ONE (ACTUALLY TWO )

    A long-held dream realised!!

    As built, the batteries in the model are based on American practices, so various modifications have been made to make them more in line with New Zealand practice (and no, I won't bore you with the details).

    They appear below, and, because this aspect of gold mining is largely incomprehensible to most, I have included an interpretative diagram alongside the photo of the model.

    BTW: These machines were designed to crush very hard quartz rock (think of the hardness of diamonds) in blocks of approximately basket ball shape / size and to turn it into talcum-powder-like fineness after-which chemicals were added to extract as much gold as possible.



    1. HO Scale 10-stamp California-type stamp battery and Mercury Amalgamation tables



    2. A 'Californian' type 5-stamp Battery ('Mill')







    Last edited by Komata; 5th Dec 2018 at 10:05 PM.
    Komata "TVR - serving the Northern Taranaki . . . "

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  3. #2
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    Keith, whilst the item itself may be HO, if you’re using it on your N layout, or even drawing inspiration from it, it’s on topic.

    Ive moved your thread to the the scenery forum.
    Bryan
    “Simplicity is the ultimate sophistication.” ~ Leonardo da Vinci (1452–1519)

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  5. #3
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    Thank you.
    Komata "TVR - serving the Northern Taranaki . . . "

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    Impressive model. I was wondering why you went with a much larger stamp rather than the Detail Associates N scale 5 stamp model? Was the NZ stamps larger than the US version?
    Just wondering as I'm starting a gold mining enterprise (but freelanced Colorado theme) and not conversant with machinery sizes and things as yet...
    Cheers,

    Russ

    CEO of Devil's Gate Mining Co.



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    Russ

    For some reason the Detail Associates kit didn't appear when I was doing a 'Google' search for 'Batteries' and until I read your post I wasn't aware of its existence; the HO scale one I eventually purchased seemed to be the only one available.

    Thank you for bringing it to my attention; I'll see if I can purchase some examples.

    FWIW: Full-sized stamper batteries in NZ (and Australia as well) were the same size as their US counterparts, but were modified slightly to suit local conditions and requirements (I won't bore you with the details).

    Again, thanks.
    Komata "TVR - serving the Northern Taranaki . . . "

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    Komata,

    I know how easily things can 'slip' past google just by a different word or spelling.
    Detail Associates make a range of mill equipment, I've listed them below (from the Republic locomotive Works catalogue, the can be sourced anywhere I think)

    DA 8439- 5 stamp crusher https://www.republiclocomotiveworks....tem.php?ID=117
    DA 8440- Ore & rock crusher https://www.republiclocomotiveworks....tem.php?ID=118
    DA 8441- Ore slurry pump https://www.republiclocomotiveworks....tem.php?ID=119
    DA 8442- Wilfrey table https://www.republiclocomotiveworks....tem.php?ID=120

    That's all the mill machinery they seem to produce. There are other items, like an ore cart, stationary boiler and mill engine.
    https://www.republiclocomotiveworks....at.php?catid=1

    I hope this helps...
    Cheers,

    Russ

    CEO of Devil's Gate Mining Co.



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