Filing appliances with means for engaging perforations or slots

BPERFORMING OPERATIONS TRANSPORTING B42Bookbinding B42FSHEETS TEMPORARILY ATTACHED TOGETHER FILING APPLIANCES FILE CARDS INDEXING

B42F13/00Filing appliances with means for engaging perforations or slots

B42F13/0006Covers for loose-leaf binders B42F13/0013made of special materials B42F13/002with hinges B42F13/0026with locks or closures B42F13/0033with two or more filing appliances B42F13/004Devices for protecting or reinforcing covers B42F13/0046against ring damage B42F13/0053Indexing means on file covers B42F13/006applied on the back of file covers B42F13/0066with means for attaching the filing appliance to the cover B42F13/0073removable B42F13/008Slots or openings in covers for rings B42F13/0086Auxiliary ring supports on covers B42F13/0093Binding devices co-operating with corner or back cut-outs of the stack B42F13/02with flexible or resilient means B42F13/04with cords, coils, or chains B42F13/06with strips or bands B42F13/08of metal B42F13/10of plastic B42F13/12with pillars, posts, rods, or tubes B42F13/14with clamping or locking means B42F13/16with claws or rings B42F13/165with flexible or resilient claws or rings B42F13/18on two bars relatively movable longitudinally B42F13/20pivotable about an axis or axes parallel to binding edges B42F13/22in two sections engaging each other when closed B42F13/24wherein one section is in the form of fixed rods B42F13/26and locked when so engaged B42F13/28in two staggered sections B42F13/30having a set of rods within a set of tubes for a substantial distance when closed B42F13/32the nesting portions of the rods and tubes being straight B42F13/34with the rods locking in the tubes B42F13/36Locking followers Pressure bars B42F13/38Expansible cover splines or spines B42F13/40combined or formed with other articles B42F13/402enabling the cover to be positioned upright B42F13/404with punches B42F13/406with means for holding pencils B42F13/408with sheet rests or sheet lifters B42F13/42Content transfer devices Converting into permanent binders