Practical concrete was created by the Romans and in use from around 600BCE.
Scott
On Monday, May 22, 2023 at 05:37:46 PM CDT, BRIAN GLACKIN
<glackin.br...@gmail.com> wrote:
Thanks Andy
The articles I knew of were of much more recent vintage.
This article confirms the design was originally for “shell” lathes where
they could manufacture a lathe in place and have it operational in 30ish
days. I was surprised it was WW1 as the cement technology at the time was
rapidly evolving.
By
On Mon, May 22, 2023 at 4:28 AM andy pugh <bodge...@gmail.com> wrote:
> On Sun, 21 May 2023 at 23:57, BRIAN GLACKIN <glackin.br...@gmail.com>
> wrote:
>
> > During ww2 they made lathes bodies out of concrete with imbedded steel
> > parts that were jigged in form or line bored for the spindle and tail
> > stock.
>
> More info here:
>
> https://flowxrgdotcom.files.wordpress.com/2011/07/new-method-of-building-lathes.pdf
>
> (and it was actually WW1, the article is from1916)
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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