US1929482A - Loose leaf binder support - Google Patents

Description

Oct. 10, 1933. R. J. COPELAND 1,929,482

LOOSE LEAF BINDER SUPPORT Filed Dec. 17, 1927 fin/anion floerl J Cope/aha.

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Patented Oct. 10, 1933 Robert J. Copeland, Toronto, Ontario, Canada Application December 1'7, 1927,

Serial No. 240,899 1 t Claims.

The principal objects of this invention are to provide a simple, cheap and effective means for supporting the binder back of loose leaf binders so as to facilitate the handling of same particu- 5. larly in the transferring or shifting of leaves from one set of. binder prongs to another and further, to support the back so that the leaves will lie fiat for more convenient writing.

The principal feature of the invention consists in providing a means separate from the binder having raised points of support spaced apart and adapted to engage the binder and hold it in an elevated position so that the hinged members of the binder metal may swing freely.

In the drawing, Figure 1 is an end elevational view of a loose leaf binder shown with the hinged binder back supported in a raised position with the opposite sets of binder prongs spaced apart in the open position.

Figure 2 is a part end elevation similar to Figure 1 showing the hinged binder back members in position with the ends of the opposite sets of binder prongs overlapping.

Figure 3 is a perspective View of a simple form of my invention.

Figures 4 and 5 are perspective views of two modified forms of my invention shown on a smaller scale than Figure 3.

Figure 6 is a perspective View of a desk top showing two further modifications of this invention.

In the handling of loose leaf binders it is frequently found necessary to open the hinged binder back to separate the two sets of prongs so that sheets may be shifted from one set of prongs to another.

Many different means have been devised for effecting the shifting of groups of sheets from one set of prongs to another set and this invention has been devised to facilitate the use of any of these shifting devices and also to hold the binder in such a position that the hinged back may be opened and held so that the leaves will be fiat to facilitate writing thereon instead of being bent downwardly at the inner edges.

The invention is extremely simple and is capable of being incorporated in numerous forms of structure, the principal element being the arrangement of a pair of spaced and elevated points of support for the binder back which will allow the hinged metal back to swing freely to an open or closed position without danger of slipping and disengaging the leaves from the binder prongs, the height of the spaced supports being just suificient to provide for the swinging of the back sections to the position shown in Figure 2.so that it will be seen that the central or back section of the binder is only slightly elevated above the outer edges of the cover which reston the fiat'desk" or table top. Iii-this way the sheets will be supported in a very convenient and efiicient writing position while at the same time permitting easy manipulation of the back sections in positioning the prongs.

The form of the device illustrated in Figures 1, 2 and 3 comprises a strip 1 of sheet metal or other stiil material bent upwardly to form a pair of spaced inverted V-shaped supports 2, the apexesB of which are raised from the base 4 a sufficient height to allow thev unlocked hinged sections of the binder back 5 to rest in the trough-like space between the supports 2 with the ends of the prongs 6 slightly overlapping.

The apexes of the supports form pivots which engage'fthe binder back substantially opposite the hinge joints 7 connecting the hinged back sections and the covers of the binder consequently the hinging' movement is quite free and the person using the book may with a slight up ward pressure of the fingers raise the hinged portions of the binder to the position shown in Figure 1 to separate the ends of the prongs 6 or with a downward pressure may depress the said hinged sections to the position illustrated in Figure 2.

The form of the invention illustrated in Figure 4 is a solid block 8 which may be of metal, wood or any desirable substance having a pair of raised projections 9 extending above the base 10 spaced apart and having apexes to form hinge supports for the binder back.

In Figure 5 is illustrated a metal or fibre sheet base having a plurality of lugs 11 stamped therefrom and turned upwardly, said lugs being spaced apart to allow the binder back to rest upon the points thereof whether placed lengthwise or crosswise of the plate and the hinged back sections will pivot on the points of the lugs.

In Figure 6 are two further modifications, one being shown in the form of a pair of inverted U-shaped wires 12 spaced apart in a fixed position having the down-turned ends of the wires inserted in holes in the desk top. The top sections of the wires form effective pivots for the binder backs. The other form is a single length of wire 13 bent to form a pair of uprights E14 which form pivot supports for the binder back.

From these illustrations it will be readily appreciated that numerous other simple forms of Gil this invention may be devised without departing from the principal feature defined.

What I claim as my invention is:

1. A support for loose leaf binders having back sections hinged to the covers, said back sec tions having respective sets of co-operating curved prongs, comprising means separate from the binder presenting permanently positioned rigid raised supports spaced apart,.said supports being ridged for the purpose of engaging the cover hinges in fulcrum contact and being of a height sufficient only to support the inward hinge side of the covers in the minimum elevated position relative to the outer free sides, said supports presenting inward support surfaces which converge downwardly at an angle so related to the supported open binder back thatthe latter is engaged and positioned thereby with the ends of the respective sets of prongs just sufliciently overlapped to facilitate transfer of sheets from one to the other, whereby objectionable roll or curvature. of the inward portions of the sheets is minimized to facilitate insertion of written entries.

2. A support for loose leaf binders having back sections hinged to the covers,lcomprising a base having outer and intermediate base portions disposed in a common plane to rest on a desk or table top, paired projections, rigid with said base portions and each disposed between the intermediate portion and the corresponding outer base portion, said paired projections each being of inverted V-shape the ridges'thereof presenting fulcrum contacts with the cover hinges and spaced above the base portions a height sufficient only to permit the downward swinging of the back sections to a position where they engage the inward sloping sides of said inverted V-projections in positioning contact effecting the support of the hinge side of the covers in a slightly elevated position relative to the outer free sides thereof to facilitate insertion of written entries.

3. A support for loose leaf binders having back sections hinged to the covers, comprising a thin sheet of metal presenting outer and intermediate flat base portions disposed in a common plane to rest flat on a desk or other support surface and having portions between said fiatbase portions bent upwardly and shaped to form permanent rigid spaced supports, said supports being ridged for the purpose of engaging the cover hinges in fulcrum contact.

4. A support for loose leaf binders having back sections hinged to the covers, comprising a thin sheet of metal presenting outer and intermediate flat base portions disposed in a common plane to rest flat on a desk or other support surface and having portions between said flat base portions deformed bodily into inverted V-forms for the purpose of providing sloping ridged supports the ridges of which engage the cover hinges in fulcrum contact while the sloping surfaces thereof position the back sections.

5. A support for loose leaf binders having back sections hinged to the covers, comprising a thin sheet of metal presenting outer and intermediate fiat base portions disposed in a common plane to rest flat on a desk or other support surface and having triangular portions severed partially therefrom leaving the base portions thereof integral with said fiat base portions, said triangular portions being bent upwardly into substantially right angular relation to the plane of disposition of said fiat base portions whereby the ridges of the triangular portions present fulcrum contacts with the cover hinges and the inward side edges thereof present sloping guides for positioning the back sections.

R. J. COPELAND.

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