Dry wall/panel applicator's tool

Claim 1

For applicators of flat panel board or flat wall board, a combination tool comprising: an elongated arm having a planar bottom surface for engaging a planar surface on a board to be worked; head means connected to one end of said arm, the head means having a planar datum surface which extends normal to said planar bottom surfaces, the datum surface being for use in engaging an edge of a board to be worked; a carrier mounted on said arm and extending on opposite sides thereof, the carrier having lower surface means adjacent said planar bottom surface so as not to extend outwardly thereof; first track means respectively disposed on opposite sides of said arm and extending therealong; second track means on said carrier respectively engaging said first means; said first and second track means providing for the carrier to move back and forth on said arm to any of plurality of positions; means to releasably lock said carrier in any of said positions; said first track means extending to the end of said arm opposite said one end whereby said carrier can be dismounted from the arm; a scale extending along a surface of the arm and underneath said carrier, the scale including lines spaced one inch apart and a set of numerals indicating inches respectively adjacent to and for use with the lines, the line which signifies one inch being located within a plane co-planar with the datum surface; a measuring surface on said carrier for use with said scale; a pair of rotary cutters respectively rotatably mounted on said carrier on opposite sides of said elongated arm and extending outwardly of said lower surface means, the cutters being located in a plane normal to said planar bottom surface with said plane being located one inch from said measuring surface; a first threaded aperture in said head means, the axis of which extends parallel said datum surface; a pivot screw threaded in said first threaded aperture, one end of which is formed with a sharp point and the opposite end has an adjusting knob to cause rotation of the pivot screw and rotation of the pivot screw on one direction causing the sharp point to extend away from said head and rotation in the opposite direction causing said sharp point to be disposed within said first threaded aperture; a second threaded aperture in said carrier, the axis of which extends parallel to said datum surfaces; and a marking screw threaded in said second threaded aperture, on end of which is formed with a sharp point and the opposite end has an adjusting knob to cause rotation of the marking screw, rotation of the marking screw in one direction causing the sharp point to extend away from said carrier and rotation in the opposite direction causing the sharp point to be disposed in said second threaded a aperture.