Patent ID: 8510963

Claim:
A tool for tracing a curve from a first plane onto a second plane perpendicular to the first plane, the tool comprising: a. A frame having first and second arms and an elongated base member, the base member having opposite first and second ends and each arm having opposite first and second ends, the first ends of the first and second arms being coupled together at a first joint; the first end of the base member being coupled to the second end of the first arm at a second joint and the second end of the base member being coupled to the second end of the second arm at a third joint; b. First and second sliders mounted to the base member adjacent the first and second ends of the base member, the first and second sliders being configured to simultaneously bear against the first plane; c. a marking tool positioned on the frame adjacent the first joint, the marking tool configured to mark on the second plane while the first and second sliders bear against the first plane, and d. wherein the base member is articulated into two sub-members joined together by a forth joint formed midway between the first and second ends of the base member, the first, second, third and forth joints being pivotal joints allowing their respective arms and sub-members to pivotally move in the same plane only.