Abstract: A document formed of a stack of papers bound at the spine is equipped with a slide bar that achieves locking engagement with a document binder without requiring an extra die cutting step in its manufacture. The document binder is formed of articulated panels, one of which is a narrow margin panel having a width no greater than the width of the binding margin of the stack of papers. The slide bar has a pair of jaws that terminate in hooked lips that face each other across a gap defined between the jaws. The slide bar is inserted into the binding edge of the stack of papers in a direction parallel to the binding edge from either the top or bottom end of the stack. The narrow margin panel atop the binding edge margin fits within and is captured by the hooked lip of the clasp jaw adjacent thereto throughout its length and throughout the length of the binding edge of the stack of papers.

Abstract: A document presentation folder is formed from a base sheet of stiff material and a front cover. The front cover is formed with an exposed outer sheet of a nonopaque material and an inner sheet that forms a pocket with the outer sheet. The base sheet is folded in articulated fashion to define a spine demarcation and a narrow front cover attachment strip which has an attachment edge. One side of the outer front cover sheet is positioned against and overlaps the portion of the front cover attachment strip immediately adjacent thereto. The outer cover sheet and the front cover attachment strip of the base sheet are attached together by a single, continuous linear heat seal. A title sheet is removably inserted into the pocket defined between the inner and outer sheets of the front cover. A printed indicia on the face of the title sheet is thereby clearly visible through the nonopaque outer sheet of the front cover.

Abstract: An office envelope is constructed of at least one flat sheet of stock of uniform thickness throughout folded to form overlying front and back panels and a pocket panel secured to the back panel. The panels are secured together by longitudinally extending heat seals located near the edges of the pocket panel. These edges are respectively secured to the back panel proximate the opposing side edges thereof. Also, one of the sides of the envelope is provided with an overlap margin that is also secured to the back panel. The overlap margin of the side panel may be secured to the back panel by the same seal that secures one of the sealing margins of the pocket panel to the back panel. Alternatively, separate seals may be utilized to secure the overlap margin of the side panel to the back panel and the pocket panel to the back panel by two closely spaced lines of sealing.

Abstract: An improved box file structure is provide for use in a hanging office drawer file. A pocket member is formed of flat, sheet stock that is folded and fastened in such a way as to form a pair of transverse, mutually parallel retaining panels, a connecting web between the lower extremities of the retaining panels, and end flaps extending between the side edges of the retaining panels. A pair of rigid support bars extend through sleeves formed at the upper extremities of the retaining panels. The support bars have hooks at their ends that engage the rails of the hanging file. The connecting web and the end panels are each divided in half by a fold. The central fold in the connecting web is parallel to the support bars, while the folds that divide the end panels in half are perpendicular thereto. The structure of the pocket sheet may thereby be collapsed fully to bring the retaining panels into face-to-face contact with each other.

Abstract: A document holder is formed from a single sheet of flat stock folded a plurality times by mutually parallel, transverse folds that together form front and rear pockets. One of the transverse folds delineates the bottom of the front pocket, while another of the transverse folds delineates the bottom of the rear pocket. The bottoms of the front and rear pockets are spaced from each other in a direction perpendicular to the transverse folds a distance of at least about one-half of one inch. Both pockets have opposing sides. At least one of the sides of each of the pockets is closed. By longitudinally spacing the pocket bottoms from each other, stress on the structure of the pockets is greatly reduced when thick documents are inserted into the pockets. The reduction of stress in the structure of the flat sheet of stock forming the document holder markedly prolongs its useful life.

Abstract: A document folder is constructed so as to allow an individualized title to be custom made for use with a folder formed of a sheet of stiff cover stock that is folded to delineate front and back covers. The front cover of the folder is formed with at least a title viewing window defined therethrough. A stiff title backing of a size no greater than the front cover is engaged with the front cover so that the backing is disposed immediately behind the front cover. The backing may be formed as an extension flap of the stock from which the front and back covers are formed, or it may be a separate structure inserted into a pocket behind the front cover. In either case a title sheet is preferably provided and the backing is equipped with means for releasably holding the title sheet in contact with the interior surface of the front cover and in contact with the backing.

Abstract: A document binder is formed with front and back covers hinged together in articulated fashion with a spine located therebetween. An overlay is provided across the outer surface of at least the front cover and the spine and is secured by fusion to inner and outer, plastic cover sheets that encapsulate a flat, stiff, front cover core, spine, and back cover core therebetween. A front cover title sheet pocket is defined between the overlay and the outer, plastic cover sheet. The title sheet pocket is of a narrow enough width to readily accommodate title sheets printed on paper of standard width, such as eight and a half inches. The fabrication technique employed allows a title sheet pocket to be created for the front cover of the document binder which snugly confines the title sheet and prevents it from shifting laterally as occurs in conventional devices.

Abstract: A folio is comprised of a sheet of flat, expansive panel stock having a backing region and a document retention region that is folded about a laterally-extending fold or folds against the backing region. The sheet is also folded longitudinally perpendicular to the laterally-extending fold in articulated fashion to define a plurality of panels or leaves. Specifically, the longitudinal folds form a pair of mutually-adjacent interior panels and a pair of side panels. A separate one of the side panels is joined to each of the interior panels by longitudinal side panel delineating folds. Each of the side panels has one bound edge and one unbound edge. The bound edges of the side panels are secured to each other, preferably by means of transition webs that are defined between the side panels and the interior panels. The folio may include a jacket within which the sheet of folded stock forming the interior panels and side panels is encompassed.

Abstract: A file guide is formed for use in a hanging file that has a pair of rigid, laterally-spaced, parallel rails held elevated at the top of a file storage compartment, such as a file drawer. The file guide is formed of a thin, flat member that is longer than the distance between the parallel rails. The flat member has a pair of ears at its opposite ends in which rail openings are formed entirely within the structure of the ears. Each of the rail openings is large enough to receive and surround one of the rails. Access slits narrower than the rails are defined in the ears to extend between the rail openings and locations on the perimeter of the thin, flat member. The flat member is sufficiently elastically deformable to spread apart at the slits to permit passage of the rails therethrough. It is also sufficiently resilient to return to an undeformed condition to capture the rail within the rail openings after passage of the rail through the access slits.

Abstract: A device is provided for protecting a transparent display sheet bearing material thereon for projected display. Such protective devices typically employ blank, opaque backing sheets that are secured to a pair of transparent protective sheets forming a pocket for the display sheet, or directly to the display sheet itself. According to the invention, and unlike prior systems, the backing sheet is divided by a longitudinal fold into a pair of panels. One of these panels resides immediately adjacent the edge at which the backing sheet is connected to the transparent display sheet. The other panel is located remote from the connecting edge of the backing sheet, and may be folded back beneath the first panel so that the entire structure will fit atop the stage of a conventional machine for projecting images from transparent display sheets. This construction prevents the backing sheet from overhanging the edge of the stage and falling off during a presentation.