US882816A - Indexed book. - Google Patents

Description

PATENTED MAR. 2,4, 1908. A. P. DEAN.`

INDEXED BOOK.

APPLICATION FILED ma. 11, 1904.

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' H I I I llMHHWHi{WIHNHNNHMUNI!"HHI l y mcww ALBERT F. DEAN, OF CHICAGO, ILLINOIS.

INDEXED BOOK.

Specification of Letters Patent.

Patented March 24, 1908.

Application filed February 11, 1904. Serial No. 193,099.

To all whom it may concern.'

Be it known that I, ALBERT F. DEAN, citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Indexed Books, (Case No. 1,) of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to indexed books,

particularly to the arrangement of indexing.

means for language dictionaries or other vocabularies which contain an alphabetical list of words.

In Patent No. 500,262issued to me June 27, 1893, I describe a dictionary in which the book has been divided into a number of sections or parts to give room for the attachment of a projecting or index tag to each leaf, each of these sections or parts being separately bound and containing on the front page or cover a list, alphabetically arranged, of the first or some other index word on each leaf, with a line or other indicating symbol crossing from each word to the position occupied by the tag attached to the leaf containing said word. To find a desired word in the dictionary, the index word on the cover nearest to the desired word was found and'a tag corresponding to said index word was raised and the page containing the desired word was thus exposed to view.

Generally speaking, my resent invention is an improvement overl t e invention disclosed iii the above patent and I provide an improved arrangement of the indexing tags whereby, other things being equal, I may increase the capacity of the dictionary twofold. This I accomplish by providing only each alternate leaf with a tag. On the cover of the book or other index page I draw a line leading from the corresponding tag and before this line I place the index word of the leaf not provided with a tag, and below this line I place the index word of the leaf provided with the index tag and following the leaf not thus provided. Each tag, therefore, serves as an indicating means for two pages, in distinction from my above named invention wherein a tag served to indicate but one page.

In my present invention if the `word sought for is nearest to the index word above tag, and the leaf to which said tag is se- Y cured may be turned over and the word sought for may be found.

By reference to the figures my invention will be more clearly understood, and, Figure l shows the arrangement of a dictionary divided into three sections. Fig. 2 shows a single section detached from the other sections, the section being open to show the disposition of the index tags. Fig. 3 shows the book in its closed position, and Fig. 4 shows the dictionary with the cover thrownv back at an angle, thus propping up the back which carries the sections.

Like reference characters refer to like parts throughout the different figures.

I have shown my invention as applied to a French dictionary and the entire dictionary has been divided into three sections l, l, l mounted upon the back 2 of the cover 3, a flexible hinge 4 connecting said back with a flap 5, Which, when closed over the back 2 completely covers the sections l. The hinge 4 being flexible will readily accommodate itselfto any thickness of the sections and when the dictionary is in use may be turned back to be disposed at an angle to pro up the back 2, as shown in Fig. 4, or it may be folded flatly against the back 2 when it is desired to lay the dictionary fiat upon the table, as shown in dotted lines, Fig. 4. To allow seizure of the lowest tag on each section I provide a strip 6 below each section which raises each section away from the back 2. I provide a series of tags 7 7 disposed next'to each other and in an approximately straight line when the section is closed, as shown in Fig. l, each alternate leaf only being provided with a tag. An indicating line 8 on the cover 9 of each section passes inwardly from the corresponding tag to a pair of index words which may be arranged side by side, as shown on the second section l, Fi l, but are preferably arranged above and below which indicating line, as shown on the first section l Fig. l. The index word of the leaf not provided with a tag is preferably disposed over the corresponding indicating line and the index word o the succeeding leaf provided with a tag is disposed below said indicating line.

For illustration, suppose the word desired comes after but is very near the word carte. The finger is run along the corresponding indicating line 8 until it rests above t 1e corresponding tag 7 and by pressing slightly on this tag, the finger may be slipped under the untagged, preceding, leaf 10 of which the index word is carte and this leaf being then turned over, the desired word will be found thereon.

Should the desired word precede but be very close to `the index wor( certain which is associated with the same indicating line as the word carte, the finger is* again run along the corresponding indicating lineS but below the index tag 7 and the leaf to which this tag is attached being thrown open, the desired word will be revealed, this leaf ben ing the one upon which appears the index word certain.

Thus by my improved indexing arrangement, although I provide a ta for only each alternate leaf or double page, still retain indexing means for each leaf and the capacity of the book is increased two-fold without increasing the size or space.

I do not wish to be limited to the adaptation of my invention as shown, as this manner of indexing may be employed on any single indexed book. Changes may also readily be made in the precise arrangement without departing from the spirit of the invention, but

I claim as new and desire to secure by Letters Patent:

l. A book having an index word on each leaf, an index tag secured to each alternate leaf of said book, an indicating line leading from each tag, two index words printed adj acent each line, one of the words being the index word of the leaf to which the corresponding tag is secured, the other word being the index word of the leaf -next preceding said leaf to which the tag is secured, each line forming a guide path to the tag from the two words associated therewith.

2. A book having an index word on each leaf, an index tag secured to each alterna-te leaf, an indicating line leading from `each tag, an index word printed directly over each line, an index word printed directly below each line, the word over each line being the index word of the leaf to which the corresponding tag is secured, the word below the line being the index word of the leaf next preceding the leaf to which the tag is secured, each line forming a guide path from the two words associated therewith to the corresponding tag.

In witness whereof, I hereunto subscribe my name this ninth day of February A. D., 1904.

ALBERT F. DEAN.

Vitnesses:

CHARLES J. SCHMIDT, HARVEY L. HANsoN.

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