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Capital Adventures
April 11th, 2009
07:26 pm
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19th C tech.

Speaking of which, I'd quite like some steampunkish buttons for this coat I'm making. I found some today which were brass-coloured with screw-head designs on them, but they weren't really big enough. The pattern calls for 20mm buttons, and I'd consider going larger, but definitely not smaller.

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Date:April 11th, 2009 08:06 am (UTC)
Oh hey, spiral bevel gears! Really useful if you want to change the angle of rotation. Like, say, from a driveshaft to a wheel.
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Date:April 11th, 2009 01:51 pm (UTC)
I would just call those bevel gears. The spiral bevel gears I've seen have a curve in them, in addition to the bevel. Wikipedia has an article about them.

That aside, I'm overjoyed that you recognized them instantly. Also that Sarah took the picture.
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Date:April 11th, 2009 10:23 pm (UTC)
It's part of the floodgate mechanism on the upper Karori dam. It was completed in about 1906, but I stand by my title, as no doubt it was designed before the turn of the century.
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Date:April 11th, 2009 03:32 pm (UTC)
Very cool. Good luck finding buttons!
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