US2438048A

US2438048A - Bookmark

Info

Publication number: US2438048A
Application number: US724895A
Authority: US
Inventors: William J Graham
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-01-28
Filing date: 1947-01-28
Publication date: 1948-03-16
Anticipated expiration: 1965-03-16

Description

March 16, 3948. w, GRAHAM 2,438,048

BOOK MARK Filed Jan. 28, 1947 INVENTOR. W/ll/am J 6/0/7001 BYjW Attorney Patented Mar. 16, 1948 i Nl'iED S ATES ATENT GFFICE.

4 Claims.

This invention relates to book marks, and aims to provide a book mark made of a single piece of material such as, for instance, metal or socalled plastic material, which is adapted to be inserted into the space between the pages of a book and the interior binding of the leaves or the outer binding in the case of books lacking an interior binding, in such manner that the place is positivly marked and the marker is securely held in place with no danger of its becoming displaced or falling out.

The above general as well as additional and more specific objects will become apparent in the following description, wherein characters of reference refer to like-numbered parts in the accompanying drawing. It is to be noted that the drawing is intended for the purpose of illustration only, and that it is neither desired nor intended to limit the invention necessarily to any or all of the exact details of construction shown excepting insofar as they may be deemed essential to the invention.

Referring briefly to the drawing,

Fig. 1 is a fragmentary perspective view of a book, with parts broken away and partly in section, showing the book mark of this invention applied thereto.

Fig, 2 is a side elevational view of the book mark per se.

Fig. 3 is a sectional view taken on the line 3--3 of Fig. 2.

Fig. 4 is a plan view of the book mark per se.

Referring in detail to the drawing, the numeral ID indicates a book having the outer binding II and the inner binding I2, the pages I3 being held together by the latter.

The book mark I4 comprises a top fiat member I5 which may be, as shown, triangular in plan view, the triangle being illustrated as a right triangle. From one of the sides of the right angle formed by two of the edges of the top I5, and integral with the latter, a relatively long fiat leg Iii extends downward, the junction of the leg I6 with the top I5 being rounded as shown at I1.

Likewise, from the adjacent side of the right angle, the relatively shorter leg I8 extends down ward, with the junction of this leg with the top I5 also being rounded, as shown at I9. Both legs I6 and I8 lie at right angles to the plane of the top I5, and it is obvious that the embed portions Il' and I9 carry the legs I6 and I8, respectively. outward thereby providing a slot-like space 2e between the mutually adjacent edges of the two legs. The legs, of course, possess a degree of resiliency.

When a book such as is illustrated in Fig. 1 is fully opened, not shown, the interior binding I2 is lifted by the pages I3 away from the exterior binding I I, thereby providing a greater space between the two bindings than is shown in Fig. 1. This space, in its reduced form when the book is nearly closed, as illustrated, is indicated at 2|, and when the book is fully closed, the space vanishes, as is obvious.

In use, the shorter leg I8 is used as the actual spacer between the leaves of the book, and the mark is inserted in the following manner. First the protruding lower extremity of the longer leg I5 is positioned flat against the interior binding I2 and between the two bindings I I and I2, and the mark I4 is then pushed down into the position shown in Fig. 1. The resiliency between the legs and the top I5 permit of some outward bending of the legs, wh'ence, when released, the flexed legs securely lock the mark in position. Thus, the provision of one leg, I 6, longer than the other leg, I 8, permits of the longer leg serving as a guide in positioning the mark prior to pushing it down, or inserting the leg I8, between the leaves.

The simplicity of construction of the device enables it to be manufactured at a low cost, and its practical utility as above set forth make it a desirable article for all who read or use books.

Obviously, modifications in form and structure may be made without departing from the spirit or scope of the invention,

I claim:

1. A book mark comprising a top member substantially triangular in outline, legs extending at right angles to said top member from two adjacent sides thereof, one of said legs being longer than the other of said legs, said legs lying in planes at right angles to each other and having their juxtaposed edges spaced from one another.

2. .A book mark comprising a top member having substantially the conformation of a right triangle, legs extending at right angles to said top member from the two sides thereof which form the right angle of the triangle, said legs lying in planes at right angles to each other and having their juxtaposed edges spaced from one another.

3. The book mark set forth in claim 2, one of said legs being longer than the other of said legs.

4. The book mark set forth in claim 2, the junctions of said legs with said top member being convexly rounded.

WILLIAM J. GRAHAM.

REFERENCES CITED 7 The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 475,348 Saunders May 24, 1892 1,711,046 Deutsch Apr. 30, 1929