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Posted by David Sherman [24.32.202.83] on Wednesday, January 06, 2010 at 03:01:06 :
In Reply to: O.T. Found some interesting old letters posted by David Sherman [24.32.202.83] on Wednesday, January 06, 2010 at 02:42:55 :
Trenton Iron Works. Note that Trenton is quoting a Bleichert tramway, whereas Roebling says they have a cheaper model, but can also build a Bleichert. The Bleichert tramway is the type most popular with the mines back then. It's not clear whether they were quoting on the famous tramway at the Bunker Hill mine that ran across Wardner, or at one of the smaller mines in this area.
I was surprised how expensive the 500 HP compressor was -- close to a million dollars in today's money -- and it's not clear if that even includes the prime mover which was most likely a Pelton wheel.
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