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Old 04-02-2013, 11:57 PM
  #23  
qazimoto
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Default RE: ST G20 15D

ORIGINAL: Recycled Flyer


ORIGINAL: qazimoto

I'm a gessin that that's the one with the piston made out of 100 y/o cast iron.

It comes out of 100 y/o timber window frames.

They're from the cast iron counterweights that the rope connects to so when you open them they stay in the same position you left them.

It's good stuff and all you need to do is keep running it like you have been.



Hi Ray,
(I think that this has been covered before but) why would 100 year old cast iron be classed as 'good stuff' when it was originally tasked for the lowly job of being a 'weight?'

Usually the unspecified dross from the furnace makes its way into such non structural things.

Has it been chanced upon as being good?

Thanks.




While it's difficult to determine the foundry practices of 100 years ago,

I'd guess that each one would have had some steel molds which would have been

the recipient of whatever cast iron melt was left over from the days pour.

Window weights would have been an ideal product for this excess material.

Leastwise that's how I would have organized things.

The stuff has a fine grain and turns nicely. It wouldn't have these properties if it wasn't a high grade cast iron.

Ray