US1658394A - Index device - Google Patents

Description

Feb. 7, 1928. 1,658,394

J. H. RAND INDEX DEVICE Filed Ma y 2o. 1924 Archer Jo mes Boston, Mass.

Rustin William Baker Leo For 8c C0 Connors -A 6 L 1 'L J4 7176EKZ71J g, 0% fig a 1 06602 11 Patented Feb. 7, 1928.

UNITED STATES JAMES H. RAND, or nonrn TONAWANDA, NEW YORK, ASSIGNQR, BY MESNEASSIGN- ATENT Ro-FFI vrnn'rs, TO REMINGTON RAND INC., or TONAWANDAQNEW YORK, A CORPORATION OF DELAWARE.

INDEX DEVICE.

Application filed May 20,1924. Serial No. 714,581.

This invention relates to index devices of the kind in which the index elements are movably supported in a frame with their margins projecting one beyond the other and consists in the novel features hereinafter described and particularly pointed out in the claims.

The invention is illustrated in the accompanying drawings in which Fig. 1 is a fragmentary front elevation of an index comprising removable index elements constructed in accordance with the present invention; 7

Fig. 2 is a vertical section on the line 22 of Fig. 1, but to greatly enlarged scale;

Fig. 3 is a front elevation of one of the index elements'removed from the frame;

Fig. 4 an edge view of the device shown in Fig. 3;

F ig. 5 is a front elevation to smallerscale of an index elementlof modified form; 3

Fig. 6 is a vertical sectionbn the line 66 ofFig.5-; w I m Fig. 7 is a front elevation of anindex element showing a further modification; and

Fig. 8 is an edge view of the device shown in Fig. 7. V

The drawings illustrate an index frame comprising the back 1 preferably formed of sheet metal having the side flanges 2 and 3 whiclrfurnish marginal guide channels for the removable index elements.

Each index element comprises a card 4 having laterally projecting ears or lugs 5 and 6 adjacent to its lower margin as shown. The card may also be notched at the lower corners to facilitate movementthereof in the guide channels. but such notches are not necessary to the operation of the invention. In any event the lateral ears or lugs 5 and 6 should project from the lower portion of the lateral edges of the card, i. e. near or adjacent to the lower longitudinal edge. The upper and lower edges of the card are bent or flanged forwardly at 9 and 10 respectively to provide channels for the margins of an index slip or leaf S.

The card shown in Figs. 1 to 4 is folded intermediate its upper and lower margins to provide the rearwardly directed substantially rigid rib 11. Preferably this rib extends from one lateral margin of the card to the other substantially parallel to the lower edge of the card. I

Figs. 5and 6 illustrate-a modified form of index element comprising a card 4 fur-- nished with upper and lower pairs of' laterally projecting ears 5 and 6*, 7 and 8 re material rearwardly, the several projections F preferablybelng arranged in the same hori= zontal plane. I

A further modification is illustrated in 1* 1g. 7. thecard 4" being provided with a rib upon its rear surface consisting of a length of wire oiicord 13 held inplace hy-a binder strip 14 secured to the card by adhesive.

A series of index elements; whether of one,

or another of the above described forms,'are

arranged in the frame with their lower tabs 5 and 6disposed behind the side flangesB and 2 respectively of the frame and with their uppertabs 7 -and8, if they areoprovided with the latter, engaging the front faces of the flanges.

The cards are so stiffened and reinforced by the ribs or other projections that they may he made of much thinner and cheaper stock than is usually employed for similar. pur poses while .possessing suflicient rigidity to prevent them from sagging or buckling during the making of entries thereon. This stiffness is somewhat increased by the upper and lower marginal flanges although the lat ter are primarily intended to retain the removable indcx slips or leaves S.

The rigid projections upon the back sides of the index elements, Whether of the form shown in Figs. 4, 6 or 8. also constitute stops to prevent the index elements of the series from slipping downwardly with respect to each other more than the desired amount, holding them with their upper marginal portions exposed to view and when the cards are unprovided with ears adjacent to their upper margin, as illustrated in Figs. 1 and 3 the ribs or projections engage the back por tion of the frame 1, intermediate the channe 2 and 3, and. thus hold th cards i h so i kill

forwardly and upwardly inclined position desirable for ready manipulation.

lVhile the term card has been employed to designate the main body of theindex element in the above description, in a generic sense it is to be understood as indicating a piece of sheet material of any desirable character, such for example as cardboard, sheet metal, celluloid or the like, which may be formed by bending and cutting to the desired shape.

The index element having the rearwardly projecting rigid rib is particularly well adapted for use in indexes of the type herein shown where the several index elements project upwardly and forwardly from the frame but in certain of its broader aspects it is applicable to other situations where it is desired that the index element be strengthened or reinforced in a transverse direction;

I-claim:

1. An index device comprising a frame having inwardly directed lateral flanges forming opposed channels, an index element having lateral projections engaging the respective channels, and a substantially rigid rib outstanding fromv the rear face of the index element and engageable with the back of the frame, intermediate the flanges to prevent transverse flexure of the index element. 7

2. An index comprising a frame having oppositely directed channels at its lateral edges, an index element having means adjacent to one longitudinal edge to engage the respective channelsto hold th e element in the frame, the other longitudinal edge being free to swing forwardly from the frame, and a substantially rigid rib projecting from the rear face of the element intermediate its longitudinaledges and engaging the back of the frame intermediate the channels.

3. An index element of sheet material folded intermediate its margins to provide an integral outstanding reinforcing rib for supporting the lower edge ofa similar index element.

4. An index element of sheet materialhavpair of laterally extending ears adjacent to opposite margins formed integrally of the same sl1cet,1naterial as the body of the element and arranged to extend under the flanges of anindex frame anda substantially rigidintegral rib projecting from one face of the element and extending across the same, substantially from one ear to the other.

Ti. an index element of sheet material having flanges at its upper and lower edges'prm viding channels for the reception of an index slip, and a rearwardly directed fold intermediate said flanges constituting a reinforcing rib.'

6. An index element ofsheet material provided with means for, securing an index slip to its front face and a substantially rigid strengthenin rib projecting from its rear face intermediate its upper and lower margins.

7. An index element of sheet material havingflanges at its upperand lower edges providing channels for holding an index slip upon the forward face of the element, and a rearwardly projecting fold intermediate said flanges andparallel thereto constituting an integral substantially rigid reinforcing rib.

Signed by me at Boston, h fassachusetts, this sixteenth day of May 1924. A

JAMES H. RAND.

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