An apparatus for supporting and redirecting a rigging rope comprising a ring having an outer annular surface and a central passage extending between first and second side edges defining an inner surface, wherein the outer surface includes at least two circumferential grooves therearound and wherein the inner surface has a curved cross-sectional profile extending between the first and second side edges.
1. An apparatus for supporting and redirecting a rigging rope comprising: a ring having an outer annular surface and a central passage extending between first and second side edges defining an inner surface; wherein said outer surface includes at least two circumferential grooves therearound; and wherein said inner surface has a curved cross-sectional profile extending between said first and second side edges, wherein said inner surface has a constant curve cross-sectional profile extending over a span of at least two of said circumferential grooves.
2. The apparatus of claim 1 wherein said central passage is round.
3. The apparatus of claim 1 wherein said central passage is elliptical.
4. The apparatus of claim 1 wherein each of said at least two circumferential grooves has a circular cross-sectional profile.
5. The apparatus of claim 1 wherein said at least two circumferential grooves are separated by a radial wall therebetween.
6. The apparatus of claim 1 wherein said ring is formed of a material selected from a group consisting of aluminum, aluminum alloys, titanium and steel.
7. The apparatus of claim 1 wherein said inner surface is treated to provide a low friction surface.
8. The apparatus of claim 7 wherein said inner surface is anodized.
9. The apparatus of claim 1 wherein said outer surface is treated to provide a low friction surface.
10. The apparatus of claim 9 wherein said outer surface is anodized.