Re: mechanical riddle / soil sieve?

"Bob Hobden" <me@xxxxxxxxxxx> wrote in message

What we want is something that would break up the soil, pick it up,
sieve
it, and replace it, all in one operation, throwing the waste
straight into a
barrow. I wonder if there is such an animal? I'm sure there would be
many
applications for such a machine not least new houses with gardens
full of
builders rubble covered over with turf, as they do.

This may be a dumb, way off the wall suggestion, but I think it would
work. It'd require effort on your part but still should be easier
than a standard garden sieve. You'd need to build it so may not want
to go there, and it certainly wouldn't do all the things you want but
it would sieve the waste out.

Have you seen the gold cradles that were used in the gold rushes in
the "newer" bits of the world? They were built like a babies rocking
cradle and the action of rocking the thing from side to side sorted
the dirt from the nuggets. They had a number of riffles in them to
catch the gold as it went through and it was used by tossing water
into the top of it, but if it was made with just a rectaungular sieve
of square metal wire of the size you wanted to sort (and perhaps a
variety of sizes?) and which was placed right at the top of the
rocker, then it should work (assuming your soil is neither set like
concrete or is like mud).

Here's a Yankee gold rush one which of course would work if the soil
dropped straight on the ground.:
http://www.goldcradle.com/history.html




.

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