US1076131A - Loose-leaf book. - Google Patents

Description

R. LORD.

Patented Oct. 21, 1913. r

LOOSE LEAP BOOK. APPLICATION FILED 1111.24. 1911.

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book in exact alinement or register. crimping the leaves along those portions of RICHARD LORD, OF CEDAR RAPIDS, IOWA.

LOOSE-LEAF BOOK.

Specification of Letters Patent.

Application filed January 24, 1911. Serial No. 604,337. e

To all whom it may concern:

Be it known that I, RICHARD LORD, a citizen of the United States, residing at Cedar Rapids, in the county of Linn and State of Iowa, have invented new and useful Improvements in Loose-Leaf Books, of which the following is a specification.

This invention relates to loose leaf books, and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

It has been common in preparing leaves for loose leaf books to crimp or break the leaves along the line of the bend of the leaf when the book is opened, the'purpose being to make the leaf bend more readily, and thus make the working surface of the leaf substantially fiat. This crimping or indenting the leaf for this purpose, however, has been subject to the objection that. it caused the book when closed to bulge more or less due .to the fact that the indentations and protuberances in the different leaves do not exactly register.

Difliculty has been experienced in maintaining the several leaves of a loose 1%116 V the leaves which are between the binding plates or along the line of the binding posts, the protuberances or indentations thus produced when bound in the book so come together as to maintain the several leaves of the book in exact a-linernent and register. Furthermore, if the leaves are crimped along that part of the leaf extending inwardly from the binding posts sufficiently to permit of the easy bending ofthe leaves, the maintenance of the leaves in register by crimping along that part obviates the difliculty heretofore experienced as to the bulging of the book when closed.

The invention is illustrated in the accompanying drawings as follows:

well known devices being used on the posts.

The edge of the leaves secured between the plates 4 have the corrugations 6 lengthwise of the plates 4;. These corrugations 6 are in that part of the leaf along the line of posts where the posts are used, or between the binding plates so that these protuberances and indentations are subjected to the pressure of the binding plates. The several leaves are in this way brought into and kept in nice alinement and register. By extending the corrugations inwardly from the part between the plates to that' part'of the leaf which is bent in opening the book, the leaves readily yield so as to give a flat working surface. At the same time, they are maintained in register so as to prevent the bulging which is ordinarily present.

In the drawings as shown, the corrugations are exaggerated and also the rclativ thickness of the leaves.

What is claimed as new is:

1. Ina loose leaf book, thecombination of binding plates; and leaves pressed between the plates and having registering in: dentations and protuberanoes in those parts of the leaves between the plates and having corrugations lengthwise of the plates, said Patented Oct. 21, 1913.

corrugations being in those parts of the 7 3. In a loose leaf book, the combination of binding plates; binding posts between the plates; and 2 leaves having openings through which the posts extend pressed between the plates and having registering protuberances and indentations in those parts of the leaves along the line of the openings, and having corrugations along those parts of the leaves extending inwardly from the binding plates.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

RICHARD LORD.

Witnesses R. KoNIosMAnK, LURA BROMWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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