US1410001A - Loose-leaf binder - Google Patents

Description

J. C. DAWSON.

LOOSE LEAF BINDER. APPLICATION FILED JAN. 26,1921.

. 1,410,001. Patented 101121, 1922.

as. 24 2 Y 2 i! 21 ,23

damwf W UNITED STATES PATENT OFFICE.

J'AMES C. DAWSON, OF WEBSTER GROVES, MISSOURI.

LOOSE-LEAF BINDER.

To all 10 7mm it may concern Be it known that 1, JAMES C. Dawson, a citizen of the United States, and resident of \Vebster Groves, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Loose-Leaf Binders, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to loose leaf binders and has as an object the provision of a device of this nature in which the leaves will be kept in better alignment than in devices heretofore known. A further object is the provision of an improved latch for holding the binder closed.

An illustrative embodiment of the invention is shown in the accompanying drawings, in which:

Fig. 1 is an end view of a closed binder;

Fig. 2 is a vertical section on line 2-2 of Fig. 1;

F ig. 3 is a detail plan view of a portion of the binder open;

Fig. 4 is a perspective view of a removable post holder and posts on a reduced scale, and

Fig. 5 is a detail perspective view of a corner of a leaf illustrating the perforations.

The binder shown in the drawings comprises a back cover 10, hinged to a binding strip 11, at 12. The binding strip comprises a cover portion 13 having a metal strip 14 secured thereto as by rivets 15. Stationary posts 16 and 17 are rigidly secured to the strip 14.

A metal back 18 for the binder is hinged to the edge of the strip 14, as at 19, and coiled torsion springs 20, 21, are placed upon the pintle 22 of the hinge and tend to throw the back 18 away from the leaves 23. A front latch strip 24 is formed integral with the back 18 by bending the metal adjacent one edge of the sheet at right angles to the back, as at 25. The cover for the back 18 and strip 24 is carried around the angle 25 and is secured to the strip 24 by rivets 26. The front cover is hinged, as at 27, to the strip cover.

A removable front binder strip 28 carries posts 29, 30, rigidly secured thereto. The strip 28 has perforations 31, 32 to pass over the ends of posts 16, 17 Portions 33, 34, at the ends of strip 28, are offset, as at 35, 36, so as to provide horizontal latch members and the ends of the strip are turned down- Speeification of Letters Patent. Patent d M 21 1922 Application filed January 26, 1921.

Serial No. 440,012.

are depressed with flexure of the portions 35,

36, of the strip, thus releasing the catches 39, 40, when the back member 18 is thrown away from the leaves 23 by action of the springs 20, 21. The strip 28 and posts 29, 30, may then be freely removed, along with all leaves above the leaf in the binder to which access is desired. The removed leaves and posts 29, 30, may be readily returned in the well-known manner.

The fact is well known by those familiar with the manufacture of loose leaf binders utilizing posts to hold the leaves, that the holes in the leaves must be substantially larger than the diameter of the posts in order to allow freedom of manipulation of the leaves in the use of the binder. The use of such perforations results in faulty alignment of the leaves. This defect is remedied by the present invention by the character of perforations shown in Fig. 5. As there indicated the holes 41 for the posts 29, 30 are made circular and larger in diameter than the posts. But the holes 42 for the posts 16, 17 are made only wide enough to easily pass over the posts and freedom of movement is provided for by excess diameter laterally. As a result, the ends of the leaves are preserved in much improved alignment without sacrifice in freedom of manipulation.

Minor changes may be made in the physical embodiment of the invention without departing from its spirit.

I claim as my invention:

1. A loose leaf binder comprising, in combination, a plurality of sets of binding posts, leaves perforated to pass over said posts, the perforations for one set of posts being greater on all diameters than the posts of that set and the perforations for another set being greater than the posts in one direction on y.

2. A loose leaf binder comprising, in combination, a plurality of sets of binding posts,

leaves perforated to pass over said posts, the

perforations for one set of posts being greater on all diameters than the posts of that set and the perforations for another set being greater than the posts in the direction of alignment of the posts and being substantially the same size as the diameter of the posts in the direction perpendicular to the alignment of the posts.

3. A loose leaf binder comprising, incombination, a binding strip, a plurality of bindingupqst s mounted thereon, a back hinged theietb, a latch strip rigid with said back and projecting at an angleitheretopcatches carried by said latch strip, abinder strip ada ted to be -removably received on said bin ing posts, a binding postrigid therewith, latches on saidbinding strip coacting withsaid catches. a

4'. A loose leaf binder comprising, in combination, a binding strip, a plurality. of

binding posts mounted thereon, a back hin d thereto, a latch strip rigid with said bac and projecting atan angle thereto, catches carried bysaid latchstrip, a binder strip adapted to be removably received on posts, a binding post carried by said removable strip, upwardly ofiset portions carried by said removable strip. adapted to "coact with said catch projections to retain the back in closed position.

JAMES C. DAWSON.

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