|Publication number||US592981 A|
|Publication date||Nov 2, 1897|
|Filing date||Apr 19, 1897|
|Publication number||US 592981 A, US 592981A, US-A-592981, US592981 A, US592981A|
|Inventors||Alphonso V. Bowker|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (3), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
No Model.) A. V BOWKER- INDEX BOOK.
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UNITED STATES PATENT @rrrcn.
ALPHONSO V. BOYVKER, OF-ATHOL, MASSACHUSETTS.
SPECIFICATION forming part of Letters Patent No. 592,981, dated November 2, 1897.
Application filed April 19,1897 Serial No. 632,719. (No model.)
To aZZ whom it may concern:
Be it known that I, ALPnoNso V. Bownnn, of Athol, in the county of W'orcester and State of Massachusetts, have invented certain new and useful Improvements in Index- Books, of which the following, taken in connection with the accompanying drawings, is a specification.
My invention relates to index-books; and it consists in certain novel features of construction, arrangement, and combination of parts, which will be readily understood by reference to the description of the accompanying drawings and to the claims hereto appended and in which my invention is clearly pointed out.
Figure 1 of the drawings is a side elevation of an index-book closed that illustrates my invention. Fig. :2 is a similar elevation of the book open or having a portion of the leaves turned over to the left, and Fig. 3 is an end view of the book opened.
In the drawings, a a are a series of leaves of cardboard or other suitable comparatively thick and stiff material made of uniform lengths and widths, said leaves being hinged to stubs b b of similar material, but of varying widths, by strips of flexible and tough material, as linen fabric 0 c, said stubs b I) being arranged one upon the other with the widest stub at the end of the book' and the narrowest at its beginning and with their outer edges in the same plane and securely bound together by sewing through and through the whole group of stubs or by metallic fastenings, said sewing or metallic fastenings passing through said stubs and the cover cl.
The stubs Z) I) increase in width by a uniform amount from the first to the last stub of the book, and as the leaves a a are of uniform width the aggregate width of the leaves and stubs are correspondingly increased,and when the book is closed each succeeding leaf a proj'ects beyond the one preceding it to form a margin upon which may be placed the index ing-letters A B O D, &c., as shown in Fig. 1, or any other designating-characters.
The cover 6 is hinged to the outer edge of the first or narrowest stub 11 and to the back f, so as to open freely without affecting the positions of the stubs b, which remain at all times substantially parallel to the cover cl, as shown in Fig. 3.
The cover 6 is made of a width corresponding to the aggregate width of the first leaf a and stub 1), less the amount of projection of one leaf beyond the other, so as not to hide the indexing-letters on said first leaf when the book is closed as shown in Fig. 1.
The leaves a a are lettered upon each side in' the usual manner, and when the book is opened each leaf a turns upon its hinge connection to its stub b, and as a consequence the lettering on the margin of each leaf turned to the left will be as plainly visible as those on the leaves not so turned.
Between the leaves a a at certain desirable points are inserted one or more thinner and more flexible leaves g g of a size corresponding to the size of the combined leaf a and stub Z7 next preceding it, said leaves g extending to the back f and are perforated and secured in position by the same fastenings by which the stubs b are secured together.
The operation of my invention will be readily understood from the foregoing without. further description here.
What I claim as new, and desire to secure by Letters Patent of the United States, is-
l. In an index-book the combination of a series of leaves of uniform widths composed of cardboard or other suitable comparatively thick and stiff material; a corresponding series of stubs of similar material and thickmess, but of different widths; a hinge of thin flexible but durable material connecting each of said leaves with one of said stubs; and suitable througl1-and-through fastenings securing all of said stubs together with their outer edges all in the same plane.
2. In an index-book the combination of a series of leaves of uniform widths composed of cardboard or other suitable comparatively thick and stiff material; a corresponding series of stubs of similar material and thickness but of different widths; a hinge of thin flexible but durable material connecting each of said leaves with one of said stubs; one or more leaves of thin flexible paper interposed between said thicker leaves and having a width slightly less than the aggregate width of the thickerleaf and its stub next preceding it; and extending to the outer or back edge of said stubs; and fastening devices passing through all of said stubs and said thinner leaves.
3 In an index-book the combination of a series of leaves of uniform widths composed of cardboard or other suitable comparatively thick and stiff material; a corresponding series of stubs of similar material and thickness but of varying Widths; a hinge of thin flexible but durable material connecting each,
of said leaves with one of said stubs; a stiff covering-leaf having a width equal to the aggregate width of one ofi said leaves and the Widest of said stubs, the outer edges of all of said stubs and one edge of said covering-leaf being in the same plane; fastenings passing through all of said stubs and cover; a second
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