Clip for keeping a book open

摘要

It comprises an upper arm 1 made totally of transparent material, which has the function of securing the pages without impeding reading. Its design in the form of an arrow facilitates coupling to the book and maintains mechanical strength properties together with minimum-distortion optical properties, a lower arm 2 which rests on the binding and is equipped at its end with a sliding element 3 and with a design which allows adaptation to various book formats, and a spring 4 which actuates both arms, providing the necessary pressure. <IMAGE>