Patents Assigned to Officine Meccaniche Riva S.r.l.
  • Patent number: 5992790
    Abstract: A method of finishing a reel of wound yarn with a tail end of yarn hanging from the reel can prevent the tail end from becoming caught up and thus unwinding considerable lengths of yarn from the reel and comprises the steps of unwinding a predetermined length of yarn including the tail end, folding the length forming an eye by means of a connection of distinct points on the predetermined length of yarn adjacent the cylindrical surface of the reel, rotating the reel to form at least one rewound turn of yarn including the first connection of points and connecting the eye projecting from the rewound turn to a point of the predetermined length of yarn which is not rewound so as to form a second connection.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: November 30, 1999
    Assignee: Officine Meccaniche Riva S.r.l.
    Inventor: Armando D'Agnolo
  • Patent number: 4894982
    Abstract: A twisting machine, which yields a twisted thread at an unusually constant twist value, comprises within a main frame first and second yarn paths converging toward a gathering point of respective yarns from a first reel carried on the main frame and a second reel carried on a spindle, a twisted thread path extending from the gathering point to a take-up reel driven rotatively by a roller, a flyer journalled in the main frame at the gathering point, and a capstan placed along the twisted thread path, and a positive mechanical drive for interconnecting rotatively the flyer, capstan, and roller directly with the spindle.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: January 23, 1990
    Assignee: Officine Meccaniche Riva S.r.l.
    Inventor: Franco Bianchi