Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16HGEARING

F16H15/00Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members

F16H15/01characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members F16H15/02without members having orbital motion F16H15/04Gearings providing a continuous range of gear ratios F16H15/06in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B F16H15/08in which the member B is a disc with a flat or approximately flat friction surface F16H15/10in which the axes of the two members cross or intersect F16H15/12in which one or each member is duplicated F16H15/14in which the axes of the members are parallel or approximately parallel F16H15/16in which the member B has a conical friction surface F16H15/18externally F16H15/20co-operating with the outer rim of the member A, which is perpendicular or nearly perpendicular to the friction surface of the member B F16H15/22the axes of the members being parallel or approximately parallel F16H15/24internally F16H15/26in which the member B has a spherical friction surface centered on its axis of revolution F16H15/28with external friction surface F16H15/30with internal friction surface F16H15/32in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line F16H15/34with convex friction surface F16H15/36with concave friction surface F16H15/38with two members B having hollow toroid surface opposite to each other, the member or members A being adjustably mounted between the surfaces F16H15/40in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts F16H15/42in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first mentioned members F16H15/44in which two members of non-uniform effective diameter directly co-operate with one another F16H15/46Gearings providing a discontinuous or stepped range of gear ratios F16H15/48with members having orbital motion F16H15/50Gearings providing a continuous range of gear ratios F16H15/503in which two members co-operate by means of balls or rollers of uniform effective diameter, not mounted on shafts F16H15/506in which two members of non-uniform effective diameter directly co-operate with one another F16H15/52in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member F16H15/54in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first-mentionned members F16H15/56Gearings providing a discontinuous or stepped range of gear ratios