US2202787A - Bookmark - Google Patents

Description

May 28, 1940. G. v. ZUMFT 2,202,787

BOOKMARK Filed March 9, 1938 INVENTOR.

U M F T.

ATTORNEY.

Patented May 28, 1940 UNITED STATES PATENT OFFICE BOOKMARK Application March 9;

v 2 Claims.

This invention relates to devices used by students and other readers of books by which a pre- I determined page may be referred to, such devices being known under the generic term of bookmarks.

The more common form of bookmarks consist of ribbons, tapes, cards, paper strips and similar thin flat articles disposed between the pages of a book selectively, but which are liable to loosening and consequent loss of pre-sele'cted position.

It is therefore an object of this invention to provide a bookmark having means by which it may be anchored to the book cover, preventing displacement of the place-distinguishing marker. A further feature is in the provision of a bookmark capable of identifying, not only a pre-selected page, but also definitely point to the ,desired paragraph, passage or line thereon.

Another purpose is to produce a bookmark having a marker leaf of high flexibility and resiliency, permitting turning of the book leaves, successively moving from one position to the next, without attention or effort on part of the reader, automatically as each leaf or page is turned.

These objects and others, such as pleasing ap-' pearance, facility of operation and moderate cost of construction, are attained by the novel design, construction and combination or parts hereinafter described and illustrated in the annexed drawing, constituting an essential component of this disclosure, and in which:

Figure 1 is a perspective view showing one form of an embodiment of the invention.

Figure 2 is a similar View of a modified construction of the bookmark illustrating its application.

On Figure 2 of the drawing a representation of an-open book of conventional type is shown, consisting of a cover l5 having a plurality of leaves or pages It, one of which, as H, is partially raised from the others as in the act of turning.

A spring clip, generally designated by the numeral 20, consists preferably of a thin metallic plate 2| bent upon itself reentrantly to present a curved loop 22, the underlying resilient clamp element 23, extending from the loop, being downturned at its smoothly rounded edge 24.

The plate 2!, which is adapted to be entered between the cover I5 and leaves It, extends in advance to a considerable distance beyond the clamp plate 23, as best seen in Figure 1, and is provided with a rectangular aperture 25 adjacent its outer edge, a similar aperture 26 being sheared from the plate, near the loop. 22, the material 1933, Serial No. 194,744

sheared in forming the aperture being upturned angularly to form a brace element 21.

A strip of resilient material 30 as Celluloid is passed through the aperture 26, under the main central portion of the plate 2!, and upwardly through the aperture 25, the edges of the strip being guided by the end edges of the apertures.

That part of the strip extending outwardly above and beyond the aperture 26 is curved to reach, in spaced relation, over the plate 2|, the curved portion 3| being materially supported by the brace 21, while its continuation 32 is disposed normally parallel with the main portion The marker 35 is made of very thin, resilient material, as sheet Celluloid, and of any preferred profile, preferably reduced in width towards its point 36, which is adapted to enter between the leaves of the book at any desired place.

As shown in Figure 1 the marker is secured, at its wider end portion, by a tubular rivet 31 to the forwardly extending end- 32 of the strip 30, in such manner as to permit turning on the rivet, thereby permitting the indexing point 36 to swing relative to a definitely selected position on the page.

In Figure 2 the marker 35 is provided with a series of slots 38 through which the end of the support strip 32 may be interengaged in such manner as to permit of separation and also longitudinal adjustment.

It is to be understood that the marker 35 is so thin, flexible and delicately mounted on the resilient support strip 32, that, upon turning a page of the book, it will be raised by movement of the page and thereafter spring again into operative position without being operated by hand.

Having described the invention, what is claimed as new and sought to secure by Letters Patent is:

- l. A bookmark comprising aresilient marker, a flexible mount, a connection between said marker and mount, a spring clamp to engage the cover of a book, said mount slidably engaged by said,

1 clamp, and a reeniorcement for said mount integral with said clamp.

2. A bookmark comprising a spring-clip body portion having asloping leg portion adapted to be positioned between the book cover and adj-acent page, said portion having a pair of transverse slits therein, a resilient marker element threaded in said slits, a tab projecting from said body portion and engaging said marker element deflecting the same in a direction toward the pages for enabling it to droop under its own weight to a position overlying the page of the

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