US 1172010 A
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Description (OCR text may contain errors)
W. A. COOKE, In.
LOOSE LEAF BOOK.
APPLICATION FILED MAR. 13, 1915.
1,172,010. r Patented Feb. 15,1916.
Fig. 1; I jig/2.
All 1-@ (D INVENTOR WITNESSES: m I By Attofneys,
WILLIAI A. COOKIE, 33., 01 NEW YORK, N. Y.
Specification 01' Letters 2mm.
Application filed March 18, 1915. Serial No. 14,128.
To all whom it mag concern:
Be it known that I, WILLIAM A.v COOKE, Jr., a citizen of the United States of America, residing in the borough of Brooklyn, county of Klngs, city and State of New York, have invented certain new and useful Improvements in Loose-Leaf Books, of which the following is a specification.
My invention relates to loose leaf books and has for its object to provide an improved construction of sheet for use in such books.
My invention therefore consists in a sheet which may be held in the binder notwithstanding the fact that the perforations for receiving the prongs have become destroyed and by the use of which sheets thatmay become torn at the original perforated holes may be instantaneously replaced by using the opposite holes, the sheet itself taking substantially the same place in the book, among a number of leaves, from which it was torn.
Books of this character are largely made use of because of the ease-with which sheets may be added or subtracted and hold sheets I which contain information of permanent value. These sheets are frequently referred to, and the regular use to which they are subjected, coupled with the fact that they are largely employed as pocket memorandum books and are consulted at all times, exposes the leaves to hard use and frequently the leaves are torn from the perforations through to the edge so that they are destroyed and the information which is contained on them must be copied on a fresh leaf and replaced in the binder causing useless eflort. I
My invention has for its object to double the life of a sheet and therefore render it unnecessary to substitute another sheet for one which may be mutilated.
Desirable forms in which my invention may be employed are illustrated in the accompanying drawings wherein- Figure 1 illustrates my invention as applied to a book opening at the end; Fig. 2
illustrates a like application of the invention to a book opening at the side; and Fig. 3 illustrates a modified form of sheet.
My invention is illustrated as applied to binders A and B. Binder A is of the ordinary type'opening at the ends and is usually equipped with binding prongs or rings a. Binder B is of similar construction but opens at the sides, and usually has a slightly larger number of rings or prongs b. In the use of Patented Feb. 15, 1916.
these books leaves C are provided with perforations c at the inner edge which will be at the end as in Fig. 1 or at the side as in Fig. 2.
From constant use the material between the perforation 0 and the adjacent edge of the sheet may become weakened and in the course of time will, if exposed to too clumsy handling, tear out. This is particularly a t to be the case in winter weather when t e books may be taken out of the pocket and handled with gloves on. In such case with the ordinary binder it is necessary that the information on the sheets C should be recopied on a fresh page and re-inserted in the binder.
According to my invention the life of the sheet is substantially doubled and this I accomplish by providin the sheet at another edge, which is one of t e outer edges, with two auxiliary perforations D. In the case of -leaves substantially square as in Fig. 3, the
auxiliary perforatlons may be formed in the opposite edge or they may be formed in a connecting edge or in all four edges. With a book such as illustrated in Figs. 1 and 2 the auxiliary perforations are best formed in the opposite edge, and I have so illustrated them.
It is a simple matter in case the perforations 0 become torn through to the edge to shift the leaf and place t e same so that the perforations D pass over he prongs a. The same operation will take place with the leaf of Fig. 2 where the perforations are also along the opposite edge. In Fig. 3 the perforations may be placed along all of the edges or as many of them as desired.
It is essential to my invention that the sheet should have an auxiliary series of perforations placed along an edge corresponding to the original binding edge which per forations are substantially the same in size and correspond in relative-position to the original binding perforations.
It will be perceived by means of the foregoing invention that the life of the sheet is certainly doubled and may be quadrupled.
What I claim is 1. A leaf for loose leaf books having a series of perforations adjacent an inner or binding edge for receiving the retaining prongs and having a second series of like perforations located along an outer edge, said sheet having its outer edges free and disconnected from other sheets.
2. A single leaf for loose'leaf books having a series of perforations adjacent an inner or binding edge for receiving the retaining prongs and having a second series of perforatlons wlth corresponding relative positions located along the opposite outer edge of the sheet, said sheet having free outer 11