Abstract: The snap hook of the invention comprises a snap hook body closed by two closure fingers pivoting in opposite directions. The two closure fingers are separated by an insertion space. The insertion space has a width sufficient to allow the insertion of a loop oriented perpendicularly to the mean direction of the closure fingers. The insertion space becomes progressively narrower in the direction of the second end of the closure fingers. As a result, a loop may be inserted between the closure fingers, around the second end of the snap hook body, and pushing the loop, automatically inserts it into the snap hook, which thereafter remains locked.

Abstract: The snap hook of the invention comprises a snap hook body closed by two closure fingers pivoting in opposite directions. The two closure fingers are separated by an insertion space. The insertion space has a width sufficient to allow the insertion of a loop oriented perpendicularly to the mean direction of the closure fingers. The insertion space becomes progressively narrower in the direction of the second end of the closure fingers. As a result, a loop may be inserted between the closure fingers, around the second end of the snap hook body, and pushing the loop, automatically inserts it into the snap hook, which thereafter remains locked.

Abstract: A safety hook in accordance with the invention comprises a body closed by a pivoting finger which can be prevented from rotating by a transverse locking lever. The locking lever is articulated on a lever pivot on the pivoting finger and has a notch engaging over a front lug of the body in the locked position, into which it is biased by a spring. This assures reliable locking by means of a locking lever that is easy to manipulate.

Abstract: A safety hook in accordance with the invention comprises a body closed by a pivoting finger which can be prevented from rotating by a transverse locking lever. The locking lever is articulated on a lever pivot on the pivoting finger and has a notch engaging over a front lug of the body in the locked position, into which it is biased by a spring. A mobile abutment can be selectively positioned on the locking lever to prevent it pivoting in the unlocking direction. This assures reliable locking by means of a Locking lever that is easy to manipulate and immobilize.

Abstract: A karabiner comprises a generally C-shaped body the ends of which are joined by a pivoting finger, articulated at a first end and engaging at its second end with the free end of the body. The corresponding engagement ends of the finger and of the body include a male end shape and a female end shape. The male end shape has a thinner portion carrying at least one lateral protuberance and engages in a slot in the female end shape. The lateral protuberance engages in a corresponding lateral housing of the slot shaped to restrict axial relative displacement of the end shapes and to prevent the karabiner finger opening when the body is under axial traction load. A shape of this kind has no hook-shape part, and combines the functions of contributing to withstanding axial traction loads and dynamic locking on application of axial traction loads to the karabiner body.

Abstract: A locking device for mutually locking two adjacent sections of a telescoping tubular assembly. An axial extension (7) on one of the tubular sections (2) supports an expandable ring (10) received in the other tubular section (1). A nut (17) is non-rotatably slidable in the ring (10) and screwed onto a threaded portion of the axial extension (7). The ring (10) is itself non-rotatable relative to the first tubular section (1). Relative rotation between the tubular sections (1, 2) moves the nut (17) towards the second tubular section (2) and causes the ring (10) to be expanded by tapered portions (15, 16). The ring is deformed in several places to spread the frictional load.

Abstract: The present invention concerns telescopic tubular assemblies comprising a plurality of successive tubular sections sliding one inside the other between a retracted position and a deployed position. One non-limiting example of such assemblies is a ski stick.

Abstract: A snap-hook comprises a roller rotatably mounted in a first curved area of a body and cooperating with a finger to prevent opening of the finger in all angular positions of the roller except for an unlocking position in which it enables opening of the finger. The locking roller is rotated by the attachment line. Traction on the line locks the snap-hook automatically. Unlocking is achieved by pivoting the snap-hook body relative to the line.

Abstract: A self-locking snap-hook is disclosed which is so shaped that the tractive load transmitted by a first traction element is applied to a first tractive force application end formed by the snap-hook body, and the tractive load transmitted by the second traction element is applied to the locking finger. Thus, the application of the tractive load tends to close the snap-hook and cause self-locking thereof.

Abstract: A climbing wedge for use in mountaineering or speleology has the general shape of a hollow prism with a plurality of faces of different dimensions for use in fissures of different widths. Bosses are present, on each of two opposite parallel faces of the wedge, having openings therein for the passage of ropes. Recesses extend from the end of each of the opposite parallel faces to the boss thereon. Accordingly, two or more wedges of the same shape but different dimensions may be inserted into one another, with the bosses of the smaller wedge entering the corresponding recesses of the larger, without the necessity of removing any ropes passing through the bosses.