赔率bet

Movement 260
AnimatedOriginal 

260. A differential movement. The screw, C, works in a nut secured to the hub of the wheel, E, the nut being free to turn in a bearing in the shorter standard, but prevented by the bearing from any lateral motion. The screw-shaft is secured in the wheel, D. The driving-shaft, A, carries two pinions, F and B. If these pinions were of such size as to turn the two wheels, D and E, with an equal velocity, the screw would remain at rest; but the said wheels being driven at unequal velocities, the screw travels according to the difference of velocity.

10bet_bet36体育在线_bet007 bet007足球比分 bet36_12bet_bet356体育在线 118betbet16瑞丰乐投188bet手机客户端足球最新网址365bet