Patent ID: 7854070
Filing Date: 2010-12-21
Classification: A61P,B43L

Abstract:
1. An adjustable carpenter's framing square, comprising: a first elongated, generally rectangular, planar arm; a second elongated, generally rectangular, planer arm disposed in right angular relationship to said first arm; wherein each arm has a front surface, a rear surface, an inner side edge, an outer side edge, a joined end and a free end, said arm joined ends forming a framing square junction, said joined end and free and defining longitudinal axis for each arm; wherein each arm has an elongated, longitudinal slot extending from a point space from the arm joined edge to a point spaced from the arm free end, said longitudinal slot having a longitudinal axis coincident with the arm longitudinal axis; wherein the free end of each arm is formed in two portions, a first portion extending from a terminus of the outer side edge at a forty-five degree angle to the arm longitudinal axis, and a second portion extending from a terminus of the inner side edge at a forty-five angle to the arm longitudinal axis and terminating at the first portion, the inner side edge terminus being positioned longitudinally past the outer side edge terminus; an elongated, generally rectangular, planer rule, having a front surface, a rear surface, a first side edge, an opposite second side edge, a left end, a right end, said left end and right end defining a rule longitudinal axis, said rule having an elongated, longitudinal slot formed therein, extending from a point spaced from the rule left end to a point spaced from the right end, said rule slot having a longitudinal axis coincident with the longitudinal axis of the rule; two clamping screws, each screw engaging an arm longitudinal slot and protruding through and engaging the rule longitudinal slot, each clamping screw adapted to being loosened and tightened thereby allowing adjustment of the position of the rule in relationship to the arms; a plurality of spirit levels, one spirit level being installed on each arm and another spirit level being installed on the rule, wherein the arm spirit levels each have longitudinal axes parallel to their respective arm longitudinal axis and are generally positioned between the arm longitudinal slot and the arm outer side edge, and the rule spirit level has a longitudinal axis parallel to the rule longitudinal axis and is generally positioned between the longitudinal slot and the second side edge; a plurality of scales comprising: