Abstract: Disclosed herein is a device for protecting rope from abrasion as it is drawn over building parapets, rock edges and irregular terrain. The device comprises a series of chain-like links having large side plates to retain the rope upon rods interconnecting the side plates. The side plates have both radial and axial free play upon the rods, so that the chain can twist substantially to adapt to the terrain.

Abstract: A twisted carabiner comprises substantially straight back section with arcuate ends lying in substantially perpendicular planes and a gate extending between the ends so as to enable one to interconnect devices lying in different planes.

Abstract: A seat harness for mountain climbers is formed from a continuous length of woven fabric webbing having, at intervals, transverse slots formed therethrough by the weaving process. The leg loops of the harness are formed by passing the ends of the webbing through certain of its own slots. The leg loops are drawn snug while applying the harness; one size harness thus adapts to all leg sizes, avoiding the need for leg loop adjustment buckles. A chest harness formed of the same type webbing is also disclosed.