Rope pulling device

Abstract

My invention is a device for pulling and securing rope. It includes a power driven disk with annular groove having a V-shaped cross section. Bearing surfaces are transversally spaced around the periphery of the inner faces of the grooves. Gripping, without slippage occurs when a taut rope wedges into the groove and against the bearing surfaces.

What is claimed is: 
     
       1. In a rope pulling device the combination of: (a) a disk member, and,   (b) an annular groove with a V-shaped cross section provided on the periphery of the disk member, and,   (c) a plurality of ribs and troughs transversally disposed at regular intervals on the inner lateral face of said groove, and,   (d) a lineal pull rope operatively mounted in said groove whereby its strands .Iadd.operatively .Iaddend.mesh with .[.lateral surfaces of the ribs, and,.]. .Iadd.the troughs, the troughs have straight edges, are uniform in size and shape and are equally laterally spaced with respect to each other to form the ribs between the edges of adjacent troughs, .Iaddend.   (e) a power source which is operatively connected to the disk member, and,   (f) a support upon which the disk member is rotatably mounted.   
     
     
       2. The claim according to claim 1 above wherein the .[.crests of one ring of.]. ribs .Iadd.on one lateral face of the groove .Iaddend..[.is.]. .Iadd.are .Iaddend.aligned with the troughs of an oppositely disposed .Iadd.lateral face of the groove.Iaddend..[.ring of ribs.].. 
     
     
       3. The claim according to claim 1 above wherein a rope retainer is mounted for contact with the rope as it recedes from engagement. 
     
     
       4. The claim according to claim 1 above wherein a rope guide is provided in association with the disk member to cause unmating of the rope and .[.ribs.]. .Iadd.troughs.Iaddend.. .Iadd. 
     
     
       5.  In a rope pulling device for use with a power source, the combination comprising: (a) a disk member having an axis of rotation and including an annular groove extending around the entire periphery thereof,   (b) said annular groove including opposed inner lateral faces and a V-shaped cross-section having a bottom,   (c) a plurality of ribs and troughs transversely disposed at regular intervals on an inner lateral face of said groove,   (d) the troughs have substantially straight edges and extend in a direction that is at an angle with respect to the radius of the disk, the edges of adjacent troughs are laterally spaced with respect to each other to form said ribs between the adjacent troughs on portions of said inner lateral face,   (e) a lineal pull rope having a plurality of strands operatively mounted in said groove for meshing said strands with the troughs,   (f) support means which rotatably supports said disk member, and   (g) drive means for rotating the disk member to cause said rope to mesh with the troughs upon approaching the disk member. .Iaddend. .Iadd.   
     
     
       6.  The combination as defined in claim 5 wherein the groove has a sufficient depth and the lateral faces have a sufficient angle with respect to a plane normal to said axis of rotation so the rope does not contact the bottom thereof during operation of said combination. .Iaddend. .Iadd. 
     
     
       7.  The combination as defined in claim 6 wherein said angle of the lateral faces is 15 degrees to said plane. .Iaddend. .Iadd.8. The combination as defined in claim 5 wherein the ribs and troughs are on only one of the lateral faces and the other inner lateral face is smooth. .Iaddend. .Iadd.9. In a rope pulling device for use with a power source, the combination comprising: (a) a disk member having an axis of rotation and including an annular groove extending around the entire periphery thereof,   (b) said annular groove including opposed inner lateral faces and a V-shaped cross-section having a bottom,   (c) a plurality of ribs and troughs transversely disposed at regular intervals on an inner lateral face of said groove,   (d) the ribs and troughs being substantially straight and extending in a direction that is at an angle with respect to the radius of the disk, said troughs are involute and have parallel straight edges,   (e) a lineal pull rope having a plurality of strands operatively mounted in said groove for meshing said strands with the troughs,   (f) support means which rotatably supports said disk member, and   (g) drive means for rotating the disk member to cause said rope to mesh with the ribs and troughs upon approaching the disk member. .Iaddend. .Iadd.10. The combination as defined in claim 9 wherein said involute   
     
     
        troughs have a concave shape in cross-section. .Iaddend. .Iadd.11.  In a rope pulling device for use with a power source, the combination comprising: (a) a disk member having an axis of rotation and including an annular groove extending around the entire periphery thereof,   (b) said annular groove including opposed inner lateral faces and a V-shaped cross-section having a bottom,   (c) a plurality of ribs and troughs transversely disposed at regular intervals on an inner lateral face of said groove,   (d) the ribs and troughs being substantially straight and extending in a direction that is at an angle with respect to the radius of the disk, the troughs extend at an angle of 45 degrees with respect to the radius of the disk member,   (e) a lineal pull rope having a plurality of strands operatively mounted in said groove for meshing said strands with the troughs,   (f) support means which rotatably supports said disk member, and   (g) drive means for rotating the disk member to cause said rope to mesh with the ribs and troughs upon approaching the disk member. .Iaddend.   
     
     
        .Iadd.12.  In a rope pulling device for use with a power source, the combination comprising: (a) a disk member having an axis of rotation and including an annular groove extending around the entire periphery thereof,   (b) said annular groove including opposed inner lateral faces and a V-shaped cross-section having a bottom,   (c) a plurality of ribs and troughs transversely disposed at regular intervals on an inner lateral face of said groove,   (d) the ribs and troughs being substantially straight and in a direction that is at an angle with respect to the radius of the disk, said troughs have parallel straight edges and are laterally spaced with respect to each other to form said ribs on the portions of the inner lateral face between the troughs,   (e) a lineal pull rope having a plurality of strands operatively mounted in said groove for meshing said strands with the troughs,   (f) support means which rotatably supports said disk member, and   (g) drive means for rotating the disk member to cause said rope to mesh   
     
     
        with the troughs upon approaching the disk member. .Iaddend. .Iadd.13. The combination as defined in claim 12 wherein the ribs comprise flattened crests. .Iaddend. .Iadd.14. The combination as defined in claim 5 wherein the ribs and troughs are on both lateral faces,   the ribs on one of the lateral faces are aligned with the troughs on the opposed lateral face to effect a positive, non-slip abutment of the strands of the rope therebetween. .Iaddend. .Iadd.15. The combination as defined in claim 14 wherein the troughs have parallel straight edges and   
     
     
        the ribs comprise flattened crests. .Iaddend. .Iadd.16.  The combination as defined in claim 15 wherein a rope guide extends into the annular groove to cause unmating of the rope   
     
     
        from the troughs as the disk member rotates. .Iaddend. .Iadd.17.  In a rope pulling device operatively connected with a power source and a linear pull rope having a plurality of strands, the combination comprising: (a) a disk member having an axis of rotation, rotated by said power source and including an annular groove extending around the entire periphery thereof,   (b) said annular groove including opposed inner lateral faces and a V-shaped cross-section having a bottom,   (c) a plurality of ribs and troughs transversely disposed at regular intervals on an inner lateral face of said groove,   (d) the ribs and troughs being substantially straight and extending in a direction that is at an angle with respect to the radius of the disk,   (e) the troughs have straight edges, are uniform in size and shape and are laterally spaced an equidistant measure apart with respect to each other to form the ribs between the edges of adjacent troughs, said ribs being uniform in size and shape on the portions of said inner lateral face between the troughs,   (f) said troughs being effective to be operatively meshed with the strands of the linear pull rope when said rope is operatively mounted in said groove, and   (g) support means which rotatably supports said disk member. .Iaddend.   
     
     
        .Iadd.18.  In a rope pulling device operatively connected with a power source and a linear pull rope having a plurality of strands, the combination comprising: (a) a disk member having an axis of rotation, rotated by said power source and including an annular groove extending around the entire periphery thereof,   (b) said annular groove including opposed inner lateral faces and a V-shaped cross-section having a bottom,   (c) a plurality of ribs and troughs transversely disposed at regular intervals on an inner lateral face of said groove,   (d) the ribs and troughs being substantially straight and extending in a direction that is at an angle with respect to the radius of the disk,   (e) said troughs have parallel straight edges and effective to be operatively meshed with the strands of the linear pull rope when said rope is operatively mounted in said groove,   (f) said troughs being laterally spaced with respect to each other to form said ribs on the portions of the inner lateral face between the troughs, and   (g) support means which rotatably supports said disk member. .Iaddend.   
     
     
        .Iadd.19.  The combination as defined in claim 18 wherein the ribs comprise flattened crests. .Iaddend. .Iadd.20. The combination as defined in claim 18 wherein the ribs and troughs are on both lateral faces,   the ribs on one of the lateral faces are aligned with the troughs on the opposed lateral face to effect a positive, non-slip abutment of the strands of the rope therebetween. .Iaddend. .Iadd.21. The combination as defined in claim 20 wherein   a rope guide extends into the annular groove to cause unmating of the rope from the troughs as the disk member rotates. .Iaddend. .Iadd.22. The combination as defined in claim 20 wherein the ribs and troughs are uniform in size and shape with the troughs being equidistant apart with respect to each other. .Iaddend.