TRANSFER RING SHOE WITH VARIED PROFILE

摘要

A transfer ring of the type having a plurality of shoes arranged in a substantially circular configuration to define an inwardly-facing segmented cylindrical gripping surface, and a shoe for use in such a transfer ring, are disclosed. Each shoe comprises an arcuate interior surface defining a segment of the cylindrical gripping surface. The interior surface of each shoe has a first arcuate edge and an opposite second arcuate edge arranged substantially parallel to one another, and opposite first and second end edges extending between respective ends of said first and second arcuate edges. Each first and second end edge defines a substantially non-linear shape with each first and second end edge being shaped for mating engagement with an end edge of an adjacent shoe in the circular configuration.