How does a Chuck on a Lathe work?

I need some pics or some detailed answers on how it works for a project that im designing in dignified school can any one please help. it is overt for answers
Answers:
There are a couple of types, self centering and independent., and there are many variation of each. You might find this link practical: http://books.google.com/books?id=uiM56pD… In case the long link doesn't work, I be trying to link to page 8-54 in the preview (or explore the preview for "scroll chuck") of: http://books.google.com/books?id=uiM56pD…
It is not ideal, it is a preview of a book and the publisher would really like you to buy the intricate copy, so not all of the book is there, and the clarity of the scan are not ideal, but still, it hase some useful information on lathe chucks.

Related Questions:
What are the label on this lathe diagram?   We hold rock lathe and requirement to craft walls smooth?   Seaton Corp. is considering purchasing lathes from a supplier.?   Question on lathe electrical device?   A steel tube 42 mm outside diameter is turned on a lathe. The following notes be obtain :?  
  • What is mingy by dignified bring to a close lathe machines?
  • What is the difference between a contrivance center and a lathe?
  • How much is this metal lathe worth?
  • How to safe and sound a wine bottle to a wood Lathe?
  • What is the best turning tool used for carving out the inside of wooden bowls using a wood lathe? Tools pet name.?