schroefdruk

Schroefdruk refers to the screw press, a type of manual printing press that uses a threaded screw mechanism to apply pressure. The press consists of a heavy frame, a bed for the printing form, two uprights and a crossbar bearing a large screw. Turning the screw with a handle lowers a platen toward the bed, pressing inked type or a printing surface onto paper to produce an impression.

History and design: The screw press was widely used in Europe from the late Middle Ages through the early 19th century for letterpress printing and for binding tasks. It preceded the more advanced cylinder presses and could produce good impressions with modest technical skill. Traditional versions were mainly wooden with iron screws; some later models incorporated metal frames.

Operation and uses: Printmakers and printers would ink the movable type or relief block, lay a sheet over it, and apply pressure by turning the screw. In bookbinding, the press is used to flatten and set glue or to press endpapers. In printmaking, it can be used for relief or intaglio techniques that tolerate pressure.

Contemporary context: Today schroefdruk is primarily of historical interest; dedicated workshops and artists may still use replica or antique screw presses for demonstration printing, small editions, or artisanal bindings. The term is often encountered in museum descriptions and collections as part of traditional printing equipment.