US274248A - Index-tab for books - Google Patents

Description

(No Model.)

G. ANKELBN. INDEX TAB FOB, BOOKS, &c.

No.- 274,248. Patented lVIaLZO, 1883.

Fig. 5.

n. versus, PhamLyrmmphww-mlmm ma UNITED STATES PATENT OFFICE.

GUSTAV ANKELEN, OF ST. LOUIS, MISSOURI.

"INDEX-TAB FOR BOOKS, abe.

' SPECIFICATION forming part of Letters Pate-nt No. 274,248, dated March 20, 1883.

Application filed December 1, 1882. (No model.)

T o all whom 'it may/concern:

Be it known that I, GUSTAV ANKELEN,

subject of the Emperor of Germany, having declared his intention of becoming a citizen of the United States, residing at St. Louis, and State ot' Missouri, have invented anew and useful Index-Tab for Books, &c., of which the following is a specification.

This invention relates to improved manner and means to `provide "an alphabetical index or leather tabs for the fore edge of books, folded sheets, and similar purposes.

The essential objects ot' my invention are to achieve greater strength, durability, and neatness, both on part the leather tab or index ,i proper, and its attachment to the edge of the `edges or flaps atea',

paper, sheet, book, &c., also torender the, said parts more impervious and capable of resisting the effects of handling, and otherwise to improve the fore edge of books, Sec., to which myimprovementsare applied. Iachieve `the said objects by the mechanism illustrated in the accompanying drawings, in which- `Figure l represents in perspective a book havingmy improved index-tab applied thereto. Fig. 2 is an enlarged perspective view of the index-tab' as it appears ready to be applied. Fig. 3 isa transverse section of Fig. 2. Fig. 4 is a transverse section of the index .tab as it appears when applied or attached to the fore 1 edge of a leaf, sheet, or book. Fig. 5 repre` sents in detail perspective views the respective patterns or cuts of all the parts that com pose my improved index-tab.

Similarletters refer to similar parts throughont the several views.

A represents the well-known leather tab upon which the alphabetical letters are impressed, printed, &c. As usual, the said leather tab consists of two folds, and each of these I shape to present the hook-shaped projecting s as shown in Figs. 2, 3, 4,5.

B represents the pasteboard, cloth, or lilling that is placed inside the folds ofthe leather tab A,in order to give same thickness, strength, and body.

C represents the bottom layer or fold, consisting preferably of a rectangular piece of linen cloth eut and folded, asshoWn-that is to say, this piece of linen is doubled together to present the folds marked c c c2, as shown in Figs. 2, 3, 4, 5. ner faces ofthe folds c c glue or adhesive coating is applied in order to attach the linen fold C to the fore edge. Hence this fore edge, X, ofthe book, Ste., comes between the folds c c', and up against or in contact with the edge c2 ofthe linen fold O, as indicated in Figs. 4:` The fore edge, X, is thus strengthened by the addition of this bottom linen fold, C, and the latter serves as the means or surfaces against which the leather tab A is attached or made to adhere. For this purpose the leather tab A has its hook-shaped edge or` faces a a only pasted, glued, or attached near to theiedge c2 ofthe linen fold C, as shown in dotted lines in Fig. 2. In practice, I place lthe filling77 B first between the leather folds ofthe tab A, and then spread the hook-shaped folds d a to come over the edge of C, as indicated, and press the parts together to cause the adhesion to take place, thus leaving only the index or leather tab to'project beyond the fore edge in manner usual. The linen fold O, and attached thereto its leather tab A, I furtherjoin iirmly together by a third layer or outer fold of linen, (marked D.) This piece is made and folded in the shape shown in Fig. 5, seas to. have the folds d d and edge at d2. Further, this edge d2 is cut to have an opening or hole,` d3, ot' such size as to simply permit the linen fold D to be slipped over the leather tab, and bring said fold Din parallel lines to lit snugly over the bottom fold, (l.` It is the adhering or attachment'of the outer linen fold, D, over the hook-shaped edges a a of the leather tab that retains the latter more firmly in ilsplace, and offers resistance to any act tending to tear the leather tab or index away. The two linen folds (bottom, C, and outer one, 1),) come in line, top, or over each other and by glue or other adhesive matter are made to adhere togethcr, while the indextab A, by its projectand edge at ing edges a c', at'same time remain glued or fastened between thesaid two folds O and D. The combination to the fore edge of a book or the like, of the two layers ot' linen folds (l and D, and the leather tab or index having its edges c. a between saidlayers formsa'most strong, durable, and serviceable ii1dextab,77

Upon the in-A IOO and improved manner of firmly attachingsame In testimony of said invention I have here- 1o to the proper place indicated. unto set my hand.V

What I claim is- I As a new article of manufacture, the inflex- GUSTAV ANKELEN. tab consisting of the tab A proper, having` edges a a, the bottom layer of linen, C, hav- 'Vitnesses: ing-folds c c', and edge c2, and the outerlayer of JOHN W. HERTHEL, linen, D, having folds d d', edge d2, and open- WILLIAM W. HERTHEL.

ing d3, as and for the purposes set forth.

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