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Publication numberUS3858909 A
Publication typeGrant
Publication dateJan 7, 1975
Filing dateAug 7, 1973
Priority dateAug 7, 1973
Publication numberUS 3858909 A, US 3858909A, US-A-3858909, US3858909 A, US3858909A
InventorsArthur S Friedman
Original AssigneeArthur S Friedman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Book indexing means
US 3858909 A
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Description  (OCR text may contain errors)

United States Patent [1 1 Friedman Jan. 7, 1975 BOOK INDEXING MEANS [57] ABSTRACT lnVentOfl Arthur Friedrflan, 2144 Seneca The leaves of a book are arranged as separate sections W651, Mefflck, 11566 each constituted of a batch of consecutive sheets of [221 Filed: 7e $1 i ifirfi fi tfi iiii ii iiii silei ii e aih fi i fi pp BIO-1386373 carries indicia identifying that particular batch. The fibers of all the batch leaves are oriented in a direction 2 l. 283 42 Parana tummg lmmfdlately Precedmg {g B42 21412 the first leaf of each batch an indexing leaf is inserted. Each indexing leaf is made of the Same p p as the [58] Field Of Search 283/36-42,

283/63; 281/15 batch leaves, but its fibers are oriented in a direction substantially normal to the turning axis of the leaves. [56] References Cited This arrtarilgfmenjt assures that the fclie gfibiiiti and retslillzzsszzzie 222i, si hts: w iz; m: 1 jofles 6t book is thumbed, the differences are effective to bring h h m about a noticeable retardation in the rate of turnover 5123523 1533 35225521111 11111111111: .iiifi'fifili? e e eeeh hheehhhg heef he eeeehee The 3,700,264 10/1972 Friedman 283/38 automanc- 3,756,627 9/1973 Reist 283/38 Primary Examiner-Lawrence Charles Attorney, Agent, or FirmDennison, Dennison,

Townshend & Meserole 4 Claims, 3 Drawing Figures BACKGROUND The field of this inventionis the art of book leaf indexing. As used herein, the term book" means any assembly of consecutive flexible sheets fastened or bound together along one side edge marginal zone only, constituting leaves of which their opposite faces form pages.

The prior art concerned with the indexing of book leaves is replete with various expedients for indexing the leaves to facilitate access to any desired portion of a book. The vast majority of these makes use of visual indicators such as projecting tabs, finger accomodating edge grooves, etc., all of which depend upon visual identification of a selected portion of the book from its exterior, before it is opened; so that the book may be v opened initially at the desired portion. In opening, all leaves preceding the first leaf of a selected portion must either be hand lifted and moved as a batch to a position in which they do not obstruct view of the first leaf of the selected portion or be allowed to fall by gravity to I such position; they do not automatically remove themselves from the desired line of vision when the book is opened.

SUMMARY OF THE'INVENTION The invention intrinsic in the specific embodiment herein disclosed is a means for indexing the leaves of a book in such manner that access may quickly be had to any desired portion thereof, simply by thumbing the leaves so that their free edges slide beneath the thumb 'of a person holding a batch of consecutive leaves between the thumb and forefinger, as when riffling a deck of playing cards in shuffling. In the present invention, the rate'of passageof the leaf edges beneath the thumb is automatically retarded at predetermined intervals which individually denote both the ending of a particular batch of leaves and the beginning of the next following batch. The period of retardation, although miniscule, is nevertheless sufficient to enable optical recognition of identifying indicia on the leading page face of the next following batch of leaves. Such indicia characterizes the content of the batch it identifies.

In the present invention, all the paper sheets comprising its leaves are identical in size and composition, but are arranged in such manner that each leaf which immediately precedes the first leaf of the next following batch is, in effect, somewhat less flexible and resilient than the leaves which precede and follow it. In consequence, when the book is thumbed as indicated in the foregoing paragraph, the leaves of less resilience pass between the thumb and forefinger at a slower rate than the others and thus provide the intervals of retardation.

A silent feature of this invention is the fact that during thumbing of the book its leaves progress by batches, apparently jumping from one retardation point to the next following retardation point without'separation of the leaves in any batch, thereby greatly facilitating the location of a desired batch. This phenomenon is perhaps due to the fact that in small books of the type to which the invention is most applicable, the batches individually comprise relativelyfew leaves as compared with, for example, general purpose telephone directories, city directories and the like, in which each subdivision includes a large number of leaves.

DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view ofa book comprising the present invention.

FIG. 2 is a perspective view of the book as held in the act of thumbing its leaves.

FIG. 3 is a plan view, partly broken away, illustrating the book in fully opened position at a desired section.

DESCRIPTION OF PREFERRED EMBODIMENT an assembly of consecutive leaves 13 between them. The covers are conventional, such as light, flexible cardboard or the like, but the leaves are sheets of paper containing parallel oriented fibers. All the sheets constituting the leaves 13 are identical in size and composition, and, together with the covers, are bound or fastened together along one marginal edge zone by means here shown as a spiral ring binder 14.

The book leaves are arranged as a sequential series of sections having different subject matter. 'Each section is composed of a batch of consecutive leaves wherein the fibers 15 of each leaf are oriented in a direction parallel to the turning axis of the leavesDue to this arrangement, the leaves of :all the .batches are equally resilient and flexible. Each batch is separated from the next following batch by the .interposition of retardation means 16 constituted of a leaf identical to all the others in size and composition, but with its fibers 17 oriented in a direction that is transverse (preferably at a rightangle) with respect to the turning axis of the leaves. Orientation of the fibers'l7 in this direction serves, in effect, to make the retardation leaf less flexible and resilient than the batch leaves 13 when the book is thumbed with the leaves riffling'either to the left or to the right.

As shown in FIG. 3, the leading leaf 17 in each batch is provided with individual batch identification indicia 18 located on its first page face adjacent its outer (indexing) side edge and 'preferablywithin an area deli- I niated by distinctive boundary lining 19. It so happens that in the particular type of book specifically shown herein each indicia means 18 consists of one or more of the letters of the alphabet, but it could, of course, be anything that characterizes the content of a batch it identifies. As the various indicia means are not visible side edge with a thumb guide cutout 20 below which the various indicia areas may be disposed in registry therewith, with the boundary line 19 of each conforming to the shape of the thumb guide cutout in the front cover.

MODE OF OPERATION When the book is held as shown in FIG. 2, its leaves naturally assume a convex curvature. This places them under tension and imparts a spring bias, causing those .at the right of the binder to slide from beneath the thumb and flip .over to the left of the binder in theconventional manner of turning the pages of a book by thumbing its leaves. In such operation the unbound (indexing) side edges of the leaves slide beneath the thumb at a fairly uniform rate of progression. However, when one of the retardation leaves 16 passes beneath the thumb its indexing edge, because of the spring bias, is in greater frictional contact with the thumb than any of the immediately preceding and following leaves. This greater frictional contact imposes a drag which, although very slight and of very short duration, is sufficient to retard the rate of progression of the leaves enough to enable optical recognition of the identification indicia on the next following leaf. If such indicia signals that a desired batch section has been reached, a slight increase of thumb pressure will stop further progression of the leaves.

While the invention is principally adapted for use as an indexing means for books, it also finds utility in animated booklets. A series of photographs or cartoons in sequential order to depict motion as well known in the art may be placed near a corner of each of the leading leaves 17. When the book is then thumbed there will be a retardation in the leaf turnover rate as each indexing leaf is reached, thereby presenting the picture on the leading leaf for momentary viewing. The overall effect of thumbing through the book is one of character movement or animation similar to a motion picture.

I claim:

1. In a book having a sequential series of separate sections each constituted of a batch of consecutive leaves made of paper containing parallel fibers all oriented in the same direction, and an indexing leaf made of the same paper as the batch leaves and immediately preceding the first leaf of each batch, the fibers of each indexing leaf being oriented in a direction different from the direction of orientation of the batch leaf fibers, both the batch and indexing leaves having a comrnon turning axis, the direction of orientation of the batch leaf fibers being substantially parallel to said axis and the direction of orientation of the indexing leaf fibers being substantially normal to said axis.

2. In the book of claim 1: all said batch and indexing leaves being of the same size and configuration.

3. In the book of claim 1: the first leaf in each batch having thereon a distinctive identification indicia containing area adjacent its indexing side edge; and all said areas being in registry from front to back of the book.

4. In the book of claim 1: a front cover; and thumb positioning guide means thereon in registry with said indicia containing areas.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US993689 *Jul 18, 1910May 30, 1911William H JonesBook-index.
US1510280 *Jun 9, 1922Sep 30, 1924Janney Joseph AllisonAdvertising device
US2135708 *Jan 4, 1935Nov 8, 1938Shaw Walker CoMulti-index-insert card for filing systems
US2463769 *Feb 21, 1945Mar 8, 1949Hoe & Co RMethod of printing and binding books
US3700264 *Nov 2, 1970Oct 24, 1972Carey Press CorpBook having subdivisions and means to locate the first leaf of each subdivision
US3756627 *Dec 29, 1971Sep 4, 1973Ferag AgBook-like product and method for opening and stuffing same with an insert
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4621306 *Apr 4, 1985Nov 4, 1986Vdo Adolf Schindling AgDisplay device
US4978143 *Aug 23, 1989Dec 18, 1990Ericson Thomas HBook indexing system
US7393017Jun 2, 2004Jul 1, 2008Andrea CarmichaelPocket-sized travel book
US7885070Oct 23, 2008Feb 8, 2011International Business Machines CorporationApparatus and method for immersion-cooling of an electronic system utilizing coolant jet impingement and coolant wash flow
US8203842Jan 6, 2011Jun 19, 2012International Business Machines CorporationOpen flow cold plate for immersion-cooled electronic packages
US8345423Jun 29, 2010Jan 1, 2013International Business Machines CorporationInterleaved, immersion-cooling apparatuses and methods for cooling electronic subsystems
US8351206Jun 29, 2010Jan 8, 2013International Business Machines CorporationLiquid-cooled electronics rack with immersion-cooled electronic subsystems and vertically-mounted, vapor-condensing unit
US8369091Jun 29, 2010Feb 5, 2013International Business Machines CorporationInterleaved, immersion-cooling apparatus and method for an electronic subsystem of an electronics rack
WO2004026543A1 *Mar 26, 2003Apr 1, 2004Edward E AlonPage indexing system and apparatus for forming page shapes of system
U.S. Classification283/42
International ClassificationB42F21/00
Cooperative ClassificationB42F21/00
European ClassificationB42F21/00