Abstract: A rappelling-ascending apparatus for rock-climbing and industrial alpinism comprises an all-metal body defined by a front, a rear, and two lateral sides, a clamping element, and a handle. The body is made with a widening in its lower portion and two cuts along the lateral sides, the first being lengthwise the widening, the second being lengthwise the side and forming flanges. The handle is spring-biased and rotatably mounted on an axis between the front and rear sides. It comprises a two-prong friction fork on one side thereof relative to the axis, the friction fork being located on the side of the first cut. There is a ring on the opposite side of the handle and on the side of the second cut. The clamping element is mounted on the handle facing depressions in the flanges and adapted to hold a rope passing along the flanges when pressed against the rope.

Abstract: A rappelling-ascending apparatus for rock-climbing and industrial alpinism comprises an all-metal body defined by a front, a rear, and two lateral sides, a clamping element, and a handle. The body is made with a widening in its lower portion and two cuts along the lateral sides, the first being lengthwise the widening, the second being lengthwise the side and forming flanges. The handle is spring-biased and rotatably mounted on an axis between the front and rear sides. It comprises a two-prong friction fork on one side thereof relative to the axis, the friction fork being located on the side of the first cut. There is a ring on the opposite side of the handle and on the side of the second cut. The clamping element is mounted on the handle facing depressions in the flanges and adapted to hold a rope passing along the flanges when pressed against the rope.