Patent ID: 7797842
Filing Date: 2010-09-21
Classification: B25H,B43L,G01B

Abstract:
1. A multi-functional carpentry tool comprising: (a) a base member including: (b) a pair of end protractor means, each of said pair of end protractor means disposed adjacent to and spaced from a respective end of said first elongated body, said each end protractor means having a base mark line provided on said one surface of said first elongated body perpendicular to said pair of parallel first side edges thereof, and a pair of angular measuring scale indicia, each of said pair of angular measuring scale indicia aligned relative to each of said base mark line and one first side edge of said first elongated body; (c) a rule member including: (d) a slide member having each of a T-cross-section so that said slide member is operatively and slideably received within said elongated groove of said first elongated body, a predetermined thickness so that an upper surface of said slide member is recessed a third predetermined distance from said one surface of said first elongated body, and a threaded aperture centrally formed through said predetermined thickness; (e) a fastener having a threaded stem defining a first end thereof, said threaded stem passed through said aperture of said rule member and operatively extending into said threaded aperture, said fastener further having an annular shoulder positioned at inner end of said threaded stem and abuttingly engaging said one surface of said rule member being in frictional engagement with said base member; (f) an axial aperture formed through said fastener and through said threaded stem; (g) a pivot aperture formed through said first elongated body of said base member on said longitudinal axis thereof and defining a pivoting axis of said second protractor means; (h) a pin slideably mounted within said axial aperture, said pin having a generally pointed first end and a mushroomed second end, said first end adapted to pass through said pivot aperture and extend past an opposed surface of said first elongated body when a predetermined force is applied axially to said second end of said pin; (i) an axial bore formed within said second end of said fastener; (j) a bias means disposed within said axial bore for biasing said second end in a direction away from a surface of a second end of said fastener; (k) means for retaining said bias means within said axial bore; and (l) means for positioning a marking implement at a preselected distance from said pivoting axis of said second protractor means, said marking implement positioning means including at least one of a predetermined plurality of spaced apart apertures formed through said second elongated body and a holder mounted for sliding motion thereon, wherein said predetermined plurality of spaced apart apertures disposed along said longitudinal axis of said second elongated body between a second end thereof and a second end of said elongated slot.