US1807118A - Leaf holder for books - Google Patents

Description

y 5 9 O I E. M. KEN NA 1.807318 I LEAF HOLDER FOR BOOKS I Filed April 1a, 1928- Ennesbllflnriay 1 I' g Q I r I Patented May 26, 1931 UNITED STATES ERNEST M. KENNA, OF NEW YORK, N. Y.

LEAF HOLDER FOR BOOKS Application filed April 13,

For indexing purposes, and to accomplish other ends, it is often necessary to place supplemental leaves between the main leaves of a book, the supplemental leaves being shift- P able from place to place in the book, or

from book to book, as occasion may demand, and it being undesirable to deface the book in any way by the insertion or removal of the supplemental leaves. The present invention aims to provide a very simple and inexpensive means whereby this may be done, and it is a further object of this invention to improve generally and to enhance the utility of devices of that sort to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of What is claimed, without departing from the spirit of the invention.

In the accompanying drawing:

Figure -1 shows in perspective, a book wherein the device forming the subject matter of this application has been embodied;

Figure 2 is a perspective showing two of the leaves and the flexible element which holds them in place. 1

The drawings shows a book 1 having main leaves 2 and a binding 3 connecting the leaves. Supplemental leaves 4 are provided and as many of these leaves as may be required are placed between the various main leaves 2. 7 Each supplemental leaf 1 is provided within its contour with projections, such as tongues 5 preferably struck out of the leaf 4, as shown at 6. The tongues 5 are located closely adjacent to the inner edge 7 of the supple mental leaf 4: and project toward the outer edge 8 of the supplemental leaf. A flexible element, preferably a length of thread, designated by the numeral 9, is extended around the binding 3 and engaged with the projections 5 to hold the supplemental leaves 4 in place between the main leaves 2. The inner 0 end of the flexible element or thread 9 is 1928. Serial No. 270,961.

extended between certain of the main leaves 2, and held therebetween in any suitable way; If an unusually good anchorage for the inner end of the thread 9 is desired, it is tied together, as at 10, to make a loop 11 which is engaged around the binding 3.

The thread 9, from the knot 10, is extended spirally around the binding 3, as shown in Figure 2, and is engaged Wlth the tongues 5 i of the supplemental leaves 4. When enough of the leaves a are in place, the thread is simply broken off and permitted to lie between the leaves of the book. The first turn of the thread 9 is engaged with the projections or tongues 5 of the supplemental leaf 4 which is nearest to one of the covers 12 of the book, as shown in Figure 1. The remaining convolutions of the thread are engaged, as shown at 14: around the part 15 of the thread which extends from the inner end of the thread to the outermost leaf. Therefore, the inner end of the thread is held securely, and some persons prefer, on this account, to dispense with the loop 11. This is permissible, although the loop 11 forms a positive and very desirable anchorage for the inner end of the thread.

It is clear that the supplemental leaves 4 may .be inserted into the book and removed readily and rapidly, no damage to the book resulting.

What is claimed is 1. In a device of the class described, a supplemental leaf for a book, the leaf being provided with a single line of tongues struck from the leaf within the contour of the leaf and constituting the sole projections on the leaf, the said single line of tongues projecting toward the outer edge of the leaf, and being spaced from the inner edge of the leaf by a distance approximating the length of the tongues.

2. In a device of the class described, a book having main leaves and abinding connecting the main leaves, supplemental leaves between divers of the main leaves and having projections, and a flexible element wrapped in a single length around the binding in a plurality of convolutions, the convo lutions extending longitudinally of the outer :3

surface of the binding and between the main leaves, the c'onvolutions being engaged With the projections, and the flexible element constituting a one-piece retainer for a plurality 5 of supplemental leaves.

In testimony that I claim the foregoing as I my own, I have hereto afiixed m signature.

ERNEST M. ENNA.

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