whatever is known, but not from the Internet, which I already
searched, about the Artifice of Juanelo Turriano, built in the XVI
century in Toledo, Spain

Whenever a question seeks information from sources other than the
Internet, additional time will be required in the research. If a
Researcher is going to make a personal visit to a library or other
repository of reference material, I think it would be appropriate to
offer a substantially larger fee than $5. This kind of project may
take several hours.

Don't give up on the web yet:
http://home.worldonline.es/agallar/
http://centros5.pntic.mec.es/ies.juanelo.turriano/ELARTIF.htm
http://www.uh.edu/engines/epi246.htm
http://www.blackbird.vcu.edu/v1n1/nonfiction/king_e/prayer_4.htm
http://www.du.edu/~jcalvert/tech/fluids/turbine.htm
http://www.amazon.com/gp/reader/0801872480/ref=sib_dp_pt/103-8674283-2599804#reader-link

The 21 books have been translated:
"A. G. Keller, ed and trans., The twenty-one books of engineering and
machines of Juanelo Turriano [c. 1590-1600] (Madrid, 1999)."
A Spanish edition sells for Euro 750 or 900, depending on the source.

This site has a book about him (under J), but it may concentrate on
his clocks and automats:
http://www.trantiques.com/techrepair.html