ES220872U - Perfected pending. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved gradient, characterized by consisting of a body capable of being made in any type of material, from plastics to precious through noble woods, ivories, nacres, etc, etc., stamps or combined and with a variety of forms whose body extends inferiorly up to forming a rear hinge in which the closing piece is articulated, constituted by a plate, with a hole for fitting the pin or with grooves for closing by simple pressure, as a clamp, whose plate has a window, open in its part lower on the hinge of the body in whose lintel is fitted a flexible sheet, usually metallic, whose opposite end, softly slatted edge, is supported on the curved part of the hinge and, acting as a flat spring, pushes the piece of closes on the inside face of the body and keeps it secured in this position, while, when the slope is open, this same sheet exceeded its action plane for closure, keeps open to the slope and limits said opening by supporting the free end in the seat made in the base of the central hinge of the body. (Machine-translation by Google Translate, not legally binding)