Apparatus for descending a rope
OwnerWalter Sonnbergerinventor
Life of this patent
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Abstract
An apparatus for descending a rope or cable has a pair of laterally spaced housing parts pivoted together at their upper regions and connected at their lower regions to the upper ends of a scissor linkage provided at its lower ends with a pair of handles. Each of the housing parts carries a plurality of rollers engageable with the rope or cable and engaged by respective brakes for slowing descent of the device down such a rope or cable. One of the handles carries an operating lever connected to at least one of the brakes for reducing the braking force and increasing descent speed when this lever is operated.
Claims10
An apparatus for descending a vertical strand, said apparatus comprising:
- a pair of laterally spaced housing parts adapted to flank said strand;
- an upper pivot forming an upper pivot axis between said housing parts;
- respective pluralities of rollers on said housing parts engageable with a strand between said housing parts;
- a scissor linkage having at least two pivoted-together crossing links and having a pair of upper ends and a pair of lower ends, whereby on movement of said lower ends toward and away from each other said upper ends synchronously also move toward and away from each other;
- means connecting said upper ends of said linkage each to a respective housing part below said pivot axis;
- a pair of handles operatively each connected to a respective lower end of said linkage;
- and
- brake means for retarding rotation of at least some of said rollers and including an operating lever carried on one of said handles.
Dependencies are inferred from the claim text.