Swagable wire rope ferrule

Claim 2

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swageable metal body having a forward nose section and a rearward, open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a plurality of circumferentially arranged ridges, d. the ridges being defined by leading and trailing surfaces meeting at an angle of not more than about 90* , e. the ridges providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface of each ridge thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess, and opposing withdrawal of the rope upon applying a pulling stress thereto, g. the exterior surface of the body being substantially cylindrical in outline for swaging by a two-part cylindrical cavity die, the cylindrical exterior surface of the body having parallel relief flats on diametrically opposed portions arranged opposite the meeting surfaces of the die parts, the distance between the flats being substantially the same as the closed diameter of the die.

Claim 3

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swagable metAl body having a forward nose section and a rearward open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a continuous thread the inner diameter of which is less than the diameter of the rope by an amount predetermined to enable self-threading of the rope into the ferrule. d. the thread being defined by leading and trailing surfaces meeting at an angle of not more than about 90* , e. the surfaces providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface of the thread thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess and opposing withdrawal of the rope upon applying a pulling stress thereto.

Claim 4

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swagable metAl body having a forward nose section and a rearward open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a continuous thread the inner diameter of which is less than the diameter of the rope by an amount predetermined to enable self-threading of the rope into the ferrule. d. the thread being defined by leading and trailing surfaces meeting at an angle of not more than about 90* , e. the surfaces providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface of the thread thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess and opposing withdrawal of the rope upon applying a pulling stress thereto.

Claim 5

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swagable metal body having a forward nose section and a rearward, open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a plurality of circumferentially arranged ridges, d. each ridge being defined by a leading surface disposed substantially perpendicular to the axis of the bore, and a trailing surface having a leading section meeting with the leading surface at an angle of not more than about 90* and a trailing section sloping from the leading section to the base of the next trailing leading surface, e. the trailing sections providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface of each ridge thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess and opposing withdrawal of the rope upon applying a pulling stress thereto.

Claim 6

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swagable metal body having a forward nose section and a rearward, open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a plurality of circumferentially arranged ridges, d. each ridge being defined by a leading surface disposed substantially perpendicular to the axis of the bore, and a trailing surface having a leading section meeting with the leading surface at an angle of not more than about 90* and a trailing section sloping from the leading section to the base of the next trailing leading surface, e. the trailing sections providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface of each ridge thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess and opposing withdrawal of the rope upon applying a pulling stress thereto.

Claim 7

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swagable metal body having a forward nose section and a rearward, open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a continuous thread the inner diameter of which is less than the diameter of the rope by an amount predetermined to enable self-threading the rope into the ferrule, d. the thread being defined by a leading surface disposed substantially perpendicular to the axis of the bore, and a trailing surface having a leading section meeting with the leading surface at an angle of not more than about 90* and a trailing section sloping from the leading section to the base of the next trailing leading surface, e. the trailing sections providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess and opposing withdrawal of the rope upon applying a pulling stress thereto, g. the exterior surface of the body being substantially cylindrical in outline for swaging by a two-part cylindrical cavity die, the cylindrical exterior surface of the body having parallel relief flats on diametrically opposed portions arranged opposite the meeting surface of the die parts, the distance between the flats being substantially the same as the closed diameter of the die.

Claim 8

A ferrule for use on the end of a wire rope, the ferrule comprising a. a swagable metal body having a forward nose section and a rearward, open terminal section, b. the body having longitudinally therethrough a bore communicating with the rearward terminal section, c. the bore being provided with a continuous thread the inner diameter of which is less than the diameter of the rope by an amount predetermined to enable self-threading the rope into the ferrule, d. the thread being defined by a leading surface disposed substantially perpendicular to the axis of the bore, and a trailing surface having a leading section meeting with the leading surface at an angle of not more than about 90* and a trailing section sloping from the leading section to the base of the next trailing leading surface, e. the trailing sections providing intermediate recesses adapted to receive metal displaced from the rope upon swaging of the metal body, f. the leading surface thereupon forming a buttress, backing up the metal displaced from the rope into the associated recess and opposing withdrawal of the rope upon applying a pulling stress thereto, g. the exterior surface of the body being substantially cylindrical in outline for swaging by a two-part cylindrical cavity die, the cylindrical exterior surface of the body having parallel relief flats on diametrically opposed portions arranged opposite the meeting surface of the die parts, the distance between the flats being substantially the same as the closed diameter of the die.