US711656A - Temporary binder. - Google Patents

Description

.1. J., DUFFY.

TEMPORARY BINDER. (Appuvcaeionmea Jan. 29, 1902.)

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UNITED STATES 'PATENT OFFICE.

JOHN J.. DUFFY, OF WASHINGTON, DISTRICT OF COLUMBIA.

TEM PoRAjFY BIN DER.

SPECIFICATION forming'rpart of LettersAlPatentNo. 711,656, dated October 21, 1902.

Application filed January 29,1902. Serial No. 91,765. (No model.)

To all'whom it may concern:

Be it known that I, JOHN J; DUFFY, a citizen of the United States, residing at Washington in the District of Columbia, have invented certain new and useful Improvements in Temporary Binders; and I do'hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to bookbinding, but more particularly to the class of temporary binders, and has for its object to provide a device of this class which is simple inlconstruction, easy and positive of operation, and` wardly-visible parts--such as nuts,pins,&c.-V

which must necessarily interfere with a compact racking of the books.

A further object of my invention is to provide a temporary binder which is so arranged that when the book is entirely full there will be no bulging, as is generally the case when leaves are pasted to stubs.

With these objects in View my invention consists in the novel arrangement and construction of my stub-securing pins, in combination with my sliding strip and hollow casing.

My invention also consists in the particular construction of my stubs and central stubseparator.

My invention further consists in certain other novel features of construction and in combination of parts, which will be rst fully described and afterward specifically pointed out in the appended claims.

Referring to the accompanying drawings, Figure 1 is a cross-section of a temporary binder constructed in vaccordance with my invention. Fig. 2 is a vertical section taken on the lines 2 2 of Fig. 1. Fig. 3 is a perspective view of a portion of my locking-strip. Fig. 4 is a perspective of a portion of my hollow casing. Fig. 5 is a fragmentary perspective of a pair of my stubs. Fig. 6 is a fragmentary perspective of one of my stub-separators.

Like numerals of reference indicate the same parts throughout the several figures, in which-- 1 is a book having the ordinary cover 2, which is covered inside and out with heavy duck, leather, or other suitable material.

3 indicates the hack, which is preferably hat and constructed so that it will accommodate itself to a thick or a thin book.

4 indicates my hollow casing, which is constructed of suitable metal and which is incased between the outside and inside covering of the book-cover, as shown in Fig. 1, and it will be noticed by referring to Fig. l that the bending-point of the cover isin front of said hollow casing. I provide the said casL ing with two circular holes 6 near the ends thereof and also cut away a portion 7 of the inner side of said casing at the top thereof. If also provide a tang 8 in the inner side of said casing about the central point thereof for a purpose which will be hereinafter fully described. e

9 indicates my stub-securing pins, which are provided at each end with anv annular groove 10, said pins being adapted to enter the circular holes 6 in the hollow casing 4.

11 indicates my locking-strip,constructed of suitable metal, which is adapted to enter the hollow casing 4E and which is provided with two elongated slots 12, (only one shown,) one half of which is considerably Wider than the other, the narrow portions of said slots tapering toward their outer ends, as will be fully described. I also provide a small slot 13 about midway of the locking-strip and a tang 8 on the inner side of the hollow casing, which enters said slotand limits the slide of the locking-strip.

The top ends of the `lockin, ;strips 11 are bent inwardly at 14 and operate in the cutout portions 7 at the tops of` the hollow casings. These bent portions of the lockingstrips lie flat on the stubs of the book and J furnish a means for grasping the locking-strip to operate the same.

15 indicates my stubs, and in Figs. 1 and 5 the construction is fully shown. I always IOO for the thickness of the sheets that are pasted to the stubs. Without these separators the book would become thicker at the front than at the back, which would interfere with a compact racking of the book.

I provide the holes 17 in the stubs l5 elongated, for the reason that after the stub-separators are in place and sheets pasted to the stubs they do not set on the stub-securing pins at exactly right angles thereto, but obliquely. Consequently were the holes therein circular they would bind on the securing-pins and tear or otherwise prevent a speedy detachment or attachment on or o of the stubsecuring pins.

Having thus described my invention, its operation is as follows: The stub-securing pins are inserted in the circular openings in the hollow casings after the locking-slides have been raised up by grasping the bent ends thereof. The ends of the stub-securing pins pass, therefore, through the widened portion of the elongated slots in said locking-strips. When the pins are in this position, the locking-strips are pressed down, causing the narrow portions of the elongated slots in the locking-strips to engage and enter the annular grooves near the ends of the stub-securing pins, the tapered form of the elongated slot causing the edges of said slot to grip or bind with the stub-securing pins within the annular grooves, and the firmer the locking-strips are pressed the greater the locking-strips grip the securing-pins, which holds said strips and locking-pins rmly in position and precludes the locking-strips from workin g up and disengaging the securing-pins. This construction is not necessary, although I prefer it. Neverthelessl do not wish to be understood as limting myself to the exact construction in this regard, nor to the other points described, as various slight changes may be made therein by those skilled in the art which would fall within the limit and scope of my invention, and I consider myself clearly entitled to all such changes and modifications.

What I claim as new, and desire to secure by Letters Patent of the United States, is

l. In a temporary binder, the combination with the inside and outside cover, of a hollow casing interposed between said covers, openings in said casing, securing-pins provided with grooves near the ends thereof, and adapted to enter said hollow casing, and a lockingstripwithin said hollow casing provided with elongated slots, a portion of said slots being narrower than the other and tapered so as to grip the securing-pins, substantially as described.

2. In a temporary binder the combination with` the insideand outside cover of a hollow casing interposed between said covers and forminga part of the back of the binder, openings in said casing, securing-pins adapted to enter said openings, a locking-strip within said hollow casing provided with elongated slots, a portion of said slots being narrowed and tapered so as to straddle the securingpins and securely grip the same.

In testimony whereof I affix my signature in presence of two witnesses.

JOIIN J. DUFFY.

Witnesses:

WM. I. EVANS, C. HUGH DUFFY.

Y f I I I

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