| hammer [`ham·ǝr] DESIGN ENGINEERING 1. A hand tool used for pounding and consisting of a solid metal head set crosswise on the end of a handle. 2. An arm with a striking head for sounding a bell or gong. GRAPHIC ARTS The mechanism of an impact printer that presses the typeface against the ribbon and paper, or presses the paper against the ribbon and typeface. MECHANICAL ENGINEERING A power tool with a metal block or a drill for the head. ORDNANCE A metallic pivoted item in a firing mechanism designed to strike a firing pin or percussion cap and thus fire a gun. |