US1427549A - Index tab - Google Patents

Description

J. H. RAND INDEX TAB.

APPLICATION FILED SEPT. l9. 1918.

1,427,549 Patented Aug. 29, 1922 J'Alv'IES H. RAND, OF NORTH TONAXVANDA, NEV] YORK.

INDEX TAB.

Specification of Letters Patent.

Patented Aug. 29, 1922.

Application filed September 19, 1918. Serial No. 254,721.

To all whom it may concern:

Be it known that I, James H. RAND, a citizen of the United States, residing at North Tonawanda, in the county of Niagara and State of New York, have invented new and useful Improvements in Index Tabs, of which the following is a specification.

This invention relates to index tabs of the type having a transparent pocket adapted to receive a removable index-slip. Such a tab is shown and described in Letters Patent of the United States No. 1,199,418, granted to me September 26, 1916. The improved tab is especially desirable for ledgers and other books, but is also applicable to indexcards of various kinds.

The object of my present invention is the improvement of this class of tabs with a view of increasing their strength and durability without adding to their bulk or thickness. A further object is to so construct the tab as to avoid the formation of raised edges or shoulders on which the edges of the bookleaves are liable to catch.

In the accompanying drawings: Figure 1 is a face view of a book-leaf provided with the improved tab. Figure 2 is a cross section on line 22, Fig. 1. Figure 3 is a perspective view of the attaching clip. Figure 4 is a similar view of the transparent strip. Figure 5 is a perspective view of the as sembled tab, omitting the label or index slip.

Similar characters of reference indicate corresponding parts in the several views.

1 indicates the leaf of a ledger or other book to the edge of which the tab is secured. The tab comprises a doubled strip 2 of transparent material, as celluloid, and a clip 3 of suitable flexible material, as linen, to which said strip is attached and which in turn is secured to the leaf 1. The doubled celluloid strip projects beyond the edge of the leaf to form an open-ended pocket for the index slip or label 4 which bears a letter or other index-designation, and is preferably removable, so that it may be readily changed, if desired. The inner end of this pocket is formed by the adjacent edge of the leaf or card to which the tab is applied.

7 of the clip,

The attaching clip 3 is formed by doubling a strip of flexible material and cutting in its fold an opening 5 of the proper size to pass over the transparent strip. The end portions of the strip are thus covered by the flaps or folds of the clip to which they are cemented or otherwise firmly secured. These flaps embrace the leaf and are gummed directly to opposite sides thereof.

By this construction, the tab is comparatively thin, each fold of the transparent strip and the clip consisting of but a single thickness of material. At the same time the attachment of the transparent member to the inner sides of the clip greatly increases its strength and durability.

Another important advantage afforded by this construction is the avoidance of projecting edges or shoulders on the outer sides leaving the same practically smooth and preventing the edges of the leaves from catching on the ends of the strip which is liable to occur when they are arranged on the outer side of the clip.

The tab is supplied to the trade as a complete article of manufacture, the transparent strip being secured to the clip and the flaps of the latter coated with a suitable adhesive. By simply moistening the adhesive, the user can readily apply the tab to a leaf, card or other article.

As the tab comprises but two parts, it can be cheaply produced.

I claim as my invention:

1. An index tab, comprising a one-piece clip consisting of a doubled piece of flexible material containing a single thickness and provided in its fold with an opening, and a doubled strip of transparent material passing through said opening and having its side portions secured to the inner sides of the clip flaps, said strip projecting beyond the fold of the clip and its side walls being separated, whereby said side walls and the adjacent edge of the object to which the tab is attached form a transparent open-ended pocket for an index-slip.

2. The combination with a ledger-leaf or the like, of an index tab comprising a dou bled piece of fabric containing a single thickness and embracing the edge of said leaf the flaps of said fabric being secured directly to said leaf, and its fold being pro vided With an opening, and a doubled transparent strip passing outwardly through said opening and having its side portions extended inwardly some distance beyond the edge of the leaf and secured directly to the overlying side portions of said fabric, the walls of said strip being separated, whereby said walls, the fold of said strip and the enclosed l0 edge of said leaf together form an openended pocket for an index-slip.

JAMES H. RAND.

Images