Method and equipment for making stranded ropes
First Claim
1. A method of making stranded ropes comprising assembling a plurality of strands and a core side-by-side;
- clamping all the strands and the core permanently together in a predetermined closed array at one, leading end;
securing all the strands and the core separately at the other, trailing end;
applying tension to each of the strands and to the core;
progressively guiding the strands intermediate the ends into the closed array through guiding means;
moving the aforesaid guiding means progressively from the leading end to the trailing end;
rotating the leading end progressively as the aforesaid guiding means moves progressively and with a predetermined relationship;
rotating the trailing ends of the strands and the core progressively in the same direction as the leading end and with a predetermined relationship;
permanently securing all the strands and the core together adjacent the trailing end of the closed array; and
releasing the trailing ends of the strands and the core and the tension applied thereto.
1 Assignment
0 Petitions
Accused Products
Abstract
A stranded rope (12) of large size is made by assembling a plurality of strands (10) and a core (11) side-by-side along a track (13); securing the leading ends in a clamp (14); securing the trailing ends in spaced anchorages (17, 18); applying tension to the strands (10) and core (11); guiding the strands (10) intermediate the clamp (14) and anchorages (17, 18) into the closed rope array round the core (11) by means of a closing die (20) on a trolley (19); moving the trolley (19) from the clamp (14) to the anchorages (17, 18); rotating the clamp (14) progressively as the trolley (19) moves progressively; rotating the trailing ends of the strands (10) and core (11) progressively in the same direction as the clamp (14); securing all the strands (10) and the core (11) together adjacent the trailing ends; and releasing the tension from the strands and the core.
4 Citations
13 Claims
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1. A method of making stranded ropes comprising assembling a plurality of strands and a core side-by-side;
- clamping all the strands and the core permanently together in a predetermined closed array at one, leading end;
securing all the strands and the core separately at the other, trailing end;
applying tension to each of the strands and to the core;
progressively guiding the strands intermediate the ends into the closed array through guiding means;
moving the aforesaid guiding means progressively from the leading end to the trailing end;
rotating the leading end progressively as the aforesaid guiding means moves progressively and with a predetermined relationship;
rotating the trailing ends of the strands and the core progressively in the same direction as the leading end and with a predetermined relationship;
permanently securing all the strands and the core together adjacent the trailing end of the closed array; and
releasing the trailing ends of the strands and the core and the tension applied thereto. - View Dependent Claims (2, 3)
- clamping all the strands and the core permanently together in a predetermined closed array at one, leading end;
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4. Equipment for making stranded ropes comprising an elongate track;
- a clamp at one, leading end of the track for clamping a predetermined closed array of a plurality of strands and a core forming the rope, and said clamp being rotatable about an axis parallel to the track;
anchor means restrained at a distance along the track from the clamp and having rotatable tensioning spaced anchorages for the trailing ends of the strands, which extend along the track from the clamp, the anchor means also having radially equidistant from the strand anchorages a central rotatable tensioning anchorage for the trailing end of the core, which also extends along the track from the clamp;
a trolley movable along the track between the clamp and the anchor means;
a forming die carried by the trolley for progressively closing the strands to the core in the predetermined closed rope array;
a lay plate carried by the trolley and having strand guide apertures spaced radially equidistant from a core guide aperture;
first drive means for moving the trolley along the track from the leading end;
second drive means for rotating the clamp at the leading end of the track with a predetermined relationship to movement of the trolley; and
third drive means for rotating the trailing ends of the strands and the core progressively in the same direction as the clamp at the leading end and with a predetermined relationship. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
- a clamp at one, leading end of the track for clamping a predetermined closed array of a plurality of strands and a core forming the rope, and said clamp being rotatable about an axis parallel to the track;
Specification