Patent ID: 6868614

Claim:
A sight for use in aiming a projectile at a target comprising: a main frame member capable of being positioned in a substantially vertical orientation, and having a lower link element rigidly affixed thereto and depending downwardly therefrom, said main frame member further having a flange extending forwardly therefrom; a sight plate comprising a rear leg pivotably attached to said flange on said main frame member, said rear leg extending forwardly and angled upwardly from said flange, and a forward sight bar affixed to a forward extent of said rear leg, said sight plate having a first slot extending through and along a predetermined portion of said rear leg; an aiming pin secured to said forward sight bar and a ranging pin secured in said first slot of said rear leg in a manner such that the position of the ranging pin can be adjusted along the length of the slot; a forward link pivotably connected to said forward sight bar at a lower extent of said forward sight bar, said forward link extending generally downwardly from said forward sight bar; a trigger link pivotably connected, at its forward extent, to a lower extent of said forward link and pivotably connected, at its rearward extent, to a lower end of said lower link element, said trigger link having a trigger element projecting from said link; wherein said sight is so constructed and arranged such that, at an initial position, said forward sight bar and said main frame member are in a substantially parallel orientation with respect to each other, and wherein said trigger may be moved so as to cause said sight plate, said forward link and said trigger link to pivot at their respective pivotable connections to move said aiming pin and said ranging pin through first and second arcs having different radii, in changing a distance, measured in a plane parallel to said main frame member, between said aiming pin and said ranging pin.