| 摘要 |
Apparatus for binding papers or other sheet material (32) having two appertures therein comprises a longitudinally extensible member (20) and two threading rods (24) attached to the ends of the extensible member. The points of attachment (28) are near to but spaced from one end of the rods so as to form projecting tails (30). When the rods have been pulled fully through the apertures in the stack of papers, they are folded down on to the stack. The projecting tails (30) prevent the rods (24) from being withdrawn through the apertures. The apparatus may be used without or with covers having apertures in the spine for the extensible member (20). |
