Improvement in and relating to binding perforated sheets.

摘要

A jaw for use in a machine for closing a wire binding element (8) comprises a longitudinal member (30) having a curved cylindrical working surface (32) and a grooved strip (36) located in a slot (34) formed in the working surface (32) so that the grooved edge of the strip (36) projects inwardly from the working surface (36), the space between adjacent grooves being equal to the pitch of the wire binding element (8). <IMAGE>