The 26-year-old has been brought in as cover initially for three months after Mark McMillan suffered a serious knee injury.
Fury, who won two caps for his country on the 2008 tour of South Africa, has previously played for Wasps, London Irish and Leeds Carnegie
Bath rugby director Sir Ian McGeechan, who worked with Fury at Wasps, said: "With Mark McMillan suffering a relatively long-term knee injury, we felt we needed to bring in another scrum-half to give us a bit more depth.
"Warren has fitted in very well in his short time here so far, and will be a good asset to the squad going forward."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.