Patent ID: 7100653

Claim:
A carpenter saw table, comprising: a table having opposing positioning holes disposed on one side thereof, each positioning hole being disposed on opposite ends of the table, and having opposing guide rail slots disposed on the opposite ends of the table; a control unit on the one side of a top of the table, and being comprised of a pair of guide rails and two pairs of connection blocks, the connection blocks of one of the pairs being raised and locked to the respective a positioning holes using screws and winged nuts; the connection blocks of another of the pairs being raised and locked with screws and winged nuts to the respective guide rail slots, and reciprocally traveling along the guide rail slots by loosening of the winged nuts; both guide rails being installed to extend over the top of the table using the two pairs of the connection blocks; a chamber being provided at each respective ends of each guide rail; and each connection block being upwardly and tightly received in a respective chamber and fastened therein using screws and winged nuts; both sides of each connection block being provided with an E shaped multi-sectional adjustment channel that accommodates a respective screw to facilitate the loosening and refastening of the connection blocks to the guide rails, to allow both ends of each guide rail to longitudinally move in relation to their respective connection blocks to accommodate an individual circular saw; and a measurement unit comprised of a turning arm disposed over the top of the table, and a gear set disposed beneath the top of the table; a shaft extending from a bottom of a fixed end of the turning arm and penetrating downwardly through an axial hole formed in the top of the table to be pivoted to the gear set; a square hole being disposed on the turning arm at a position close to a free end of the turning arm in relation to an arc hole penetrating through the top of the table; a pivotal handle disposed on the top of the table, and extending through the square hole and the arc hole to control a positioning of the turning arm for angle adjustment; a miter gage of a same curvature as the arc hole being provided on the top of the table and adjacent to the arc hole to indicate an angle of the turning arm; the gear set being comprised of a large gear, a medium gear, and a small gear at a gear ratio of 1:2, the large gear being secured in the axial hole beneath the top of the table; an axial hole at a center of the large gear being penetrated by the shaft extending from the turning arm, the large gear being connected with the turning arm using a screw; the medium gear and the small gear being screwed in position; the small gear being provided between and engaged with the large and the medium gears; and the large, the medium, and the small gears forming a synchronous link.