Cuff's inertial propulsion system.

Cuff's inertial propulsion is an eight weights propulsion system and geometry is similar to my eight roller propulsion system which was presented already earlier on this blog with the difference generally based on the system of caring the weights on the internal edge of external rim.

Cuff has designed the eight ball bearings conjoined with eight weights by extending rods with sliding sleeves. I have solved the system slightly different where ball bearings were used on each side of the rollers and I have used the telescopic caring system for rollers.

From my calculations is implicating that system is really working producing useful force. My calculations were made with assumption of 500 rpm rotational speed and it is highly recommended to increase this speed so the result force can be stronger. My calculations didn't predict quantity of rollers and they were made for only two oppositely located rollers moving with different speed, what was implicated from the geometry of the device. In Cuff's device system is consisting of extending ball bearings. They have less mass that is located maximally outside the center of rotation, so result force should be weaker than in my concept, but generally system is much simpler and easier to made than my solution. On the picture I presented on top of this post I assume that application of linear bearings will be not possible so I apply the sliding sleeves and all will be working only on lubrication, because assumed system is so small. It should be suitable to fit to Proxxon MF-70 milling machine table KT-70. Presented here Cuff's system of propulsion is not only solution of that kind although only very few device was made in reality as a working prototype.