Perforator

Claim 1

A perforator comprising two horizontally spaced and vertically extending symmetrical casings generally vertically joined together at one end thereof and defining therebetween at said one end a body which houses a punch and die for piercing holes in sheets of paper or similar documents, said punch and die having a vertical axis and said punch being disposed in said body for vertical movement along said axis toward and away from said die, said casings each including a wing extending rearwardly from said body opposite said one end, said two casings being joined together adjacent to and rearwardly of said body and adjacent said wings, said wings defining therebetween a vertically disposed narrow gap whose median plane passes through the axis of the punch and die of the perforator and in which a ring of a file or binder may be engaged, said wings being flexible to resiliently engage flatwise the ring of a file or binder which may be positioned within said gap without requiring the opening of the ring so that the hole formed by the perforator will be in line with the plane of the engaged ring.