A turning device for a wheel set includes a handle strut and an axle pipe. The handle strut comprises a connecting tube at the bottom. The connecting tube comprises swirl tubes at respective ends. Each swirl tube has restricting members. The axle pipe comprises a receiving base corresponding to the connecting...http://www.google.co.uk/patents/US7243931?utm_source=gb-gplus-sharePatent US7243931 - Turning device for a wheel set