Abstract: A carabiner has a C-shaped body. At one end of the body a gate is pivotally mounted and is spring loaded to a closed position. A tongue is pivotally mounted on the body and is positioned to keep the gate open against the action of its spring loading. The tongue releases the gate to pivot to its closed position when an element to be engaged by the carabiner is introduced into the body and trips the tongue.

Abstract: A tool which may be used to remove staples having a first and second pivotably connected elements having parallel, spaced-apart members, the second of which is at least partially disposed in the first and has a tongue with a removable concave, bevelled tip and is pivotably connected to a lever and a gripping bar which is parallelpipedic with an S-shape having a striated, convex lower end which is spring biased into contact with each other so that when the tongue is inserted under the head of the staple and a pressure exerted on the lever it causes the means for gripping to pivot until its convex end comes into contact with the head of the staple which is pinched against the tongue and removed without being deformed.