GB590431A - Loose leaf binders - Google Patents

Abstract

590,431. Loose-leaf binders. THOMAS, B. C. April 16, 1945, No. 9440. Convention date, June 19, 1943. [Class 146 (i)] In a loose-leaf binder comprising aligned binding members 2 interlocking with slotted edges 4 of the leaves to be bound, each member 2 is of hollow cylindrical form and is internally partitioned at 1 to present two cup-shaped bases 3. The members 2 may be made of aluminium or other metal, synthetic resinous material, rubber or other material, and the inner and outer profiles of the cylinder may be varied. The lugs 8 forming the slots of the sheets may be stiffened by size, gum or other means. The partition 1 may be formed integral with the cylinder. The Specification as open to inspection under Sect. 91 comprises also members 2 having slots 12, Fig. 12 (Cancelled), through which a strip 13 passes to make the binder rigid; alternatively a rod may pass through holes in partitions 1. In Fig. 15 (Cancelled), two thin cups 3a, 3b are secured inside the cylinder 2 with their bases 1a, 1b either adjacent or spaced apart. In another form the hollow cylinder has a shorter solid cylinder secured within it so as to form a cup at each end. This subject-matter does not appear in the Specification as accepted.