Abstract: A construction layout device comprising a body having a front face, rear face and two side faces; at least one base plate fastened to the underside of said body and providing support therefor atop a worksurface; a handle fastened atop said body, said handle having one termination proximate to said front face and a second termination proximate to said rear face; a first protrusion fastened to either said front face or one of said side faces, said protrusion having a through bore, said through bore normal to said worksurface; and at least one adjustable pin inserted in said through bore for holding a chalk line or other layout means.

Abstract: A construction layout device comprising a body having a front face, rear face and two side faces; at least one base plate fastened to the underside of said body and providing support therefor atop a worksurface; a handle fastened atop said body, said handle having one termination proximate to said front face and a second termination proximate to said rear face; a first protrusion fastened to either said front face or one of said side faces, said protrusion having a through bore, said through bore normal to said worksurface; and at least one adjustable pin inserted in said through bore for holding a chalk line or other layout means.

Abstract: An aqueous dispersion of a polymerized (e.g., oxidized) oil, preferably an oxidized vegetable oil, suitable for reducing dusting in industrial processes, prepared by using, as the primary dispersing (emulsification) agent, a sulfated or sulfonated oil (also preferably a sulfated or sulfonated vegetable oil) to disperse the polymerized oil.