US2277318A - Bookbinding - Google Patents

Description

March 24, 1942. J. E. GRANT BOOKBINDING Filed March 14, 1941 n E l doseph E. Grant. BY

Patented Mar. 24,1942

ESTATES TENT @FICE 2 Claims.

My invention relates to certain improvements in bindings for book leaves and has for its general object the provision of a simple and economically constructed durable binding.

A further object of my invention is to provide a novel binding which provides spaced leaves.

A further object of my invention is to provide a novel apparatus for binding book leaves.

A more specific object of my invention is to provide a binding wherein the leaves are provided at the bound edge with a reinforcement or spacer strip, which is secured to the leaf by a flexible strip in such manner that the strip serves as a hinge connecting the two leaves, thus eliminating the necessity for sewing or kerfing the leaves.

Other objects and advantages of this invention will become apparent to those skilled in the art by the following description, reference being had to the accompanying drawing in which like characters of reference indicate corresponding parts in all the figures.

Fig. 1 is a fragmentary, perspective, view of an open book bound according to my invention.

Fig. 2 is a fragmentary, sectional, elevation of the book in a closed position showing details of construction.

Fig. 3 is a fragmentary plan view of the binding apparatus and showing the spacer-reinforcement strips, tape strips, and leaves.

Fig. 4 is a fragmentary section taken in line 44, Fig. 3, showing one step in the method.

Fig. 5 is a view similar to Fig. 4 showing another step in the method, and

Fig. 6 is a fragmentary section showing a plurality of joined leaves.

Referring to the drawing by reference character I have shown my invention as embodied in a book which is indicated generally at I0. As shown the book includes a cover II having a cover-lining I2 and an outer binding tape I3. The book also includes a plurality of pages I4 on which spacer and reinforcing strips I5 are mounted. The assembly is secured together by tape strips I6.

The book is preferably assembled in an apparatus shown in Figs. 3 and 4, which includes a base I! having end flanges I8 thereon. The base also has side flanges I9 which extend a short distance along the sides. Intermediate the end flanges I8 I provide an inwardly directed spacing member 29. The spacers are spaced apart a distance which corresponds to the combined thickness of the leaf I4 and strip I5 so that when the parts are folded from the position shown in Fig. 4 to the finished position shown in Fig. 2 the width of the tape strips I6 will be correct.

In constructing my book, for convenience in assembly the parts are assembled upside down with respect to the position shown in the finished book in Figs. 1 and 2. I first lay a strip of adhesive tape I6 on the base I8 as shown in dotted lines in Fig. 3 and in solid lines in Fig. 4. The length L of this strip in Fig. 3 is such that it fits between the spacers 29. The strip I6 has an adhesive coating 2| on the upper surface thereof as shown in Fig. 4. A page I4 is then inserted as shown in Fig. 4 and moved down so that it engages the adhesive 2|.

The page I4 has a length L which corresponds to the distance between the flanges I8 and the page I4 has a width W corresponding to the distance between the spacer 29 and the flange I9. A reinforcing strip having a length L" corresponding to the distance between the flanges I8 and a width W corresponding to the distance between the flange I9 and the spacer 20 as shown in position in Fig. 4 and is brought down onto the adhesive 2| and is secured.

The reinforcement I5 is then folded to the position shown in Fig. 5. The spacers 26 are of such length as shown in Fig. 4 so that this folding may readily occur. The assembly including the page with its reinforcement is then removed and placed on a support 22 as shown in Fig. 6. The support 22 includes a side 23 and the assembly is moved against the side 23 which serves as a guide. A second page is then made in the same manner.

The upper surface 24 of the strip I6 and the upper surface 25 of the reinforcement I1 of the assembly on the support 22 are then moistened with glue and the next assembly is laid upon the first assembly so that the adhesive 24 surface engages the superimposed reinforcing strip I6 and the adhesive 25 surface engages the superimposed page I I. This process of adding assemblies is combined until the desired number of pages have been bound.

To complete the book, the lower cover lining I2 is secured in place on the last page and the reinforcement on this page is omitted. The tape 39, shown in Fig. 2, is secured to the cover I I and this cover is secured to the cover lining I2. The tape 39 is also secured to the outer binding tape I3 as shown in Fig. 2. At the other side of the book the cover lining I2 is secured in place of the usual page I4 by means of the tape I6 and a tape 3| is applied as shown in Fig. 2. The cover H is secured to the tape 3| and to the adjacent cover lining l2, and the tape 3| is then secured to the outer binding tape 13 which extends some distance along the covers I l.

The reinforcement strips l5 provide a spacing means so that the pages I4 are separated thus allowing relatively bulky members to be secured to the pages [4 Without undue pressure against the adjacent page.

From the foregoing description it will be apparent that I have invented a novel binding which can be economically manufactured and which is highly efficient for its intended purpose.

Having thus described my invention, I claim:

1. In a book, a plurality of page assemblies, each page assembly comprising a page, a reinforcement of less width than the page, and an adhesive strip of less length than the reinforcement and secured to one face of the page and to the corresponding face of the reinforcement, each reinforcement being folded with its associated strip as a hinge to overlap the adjacent page, said assemblies being arranged so that the adhesive strips have their surfaces in direct engagement, adhesive means connecting the engaged portions of the strips, said reinforcements projecting beyond the strips and engaging the succeeding page and adhesive means connecting the projecting portion of each reinforcement with the succeeding page.

2. In a book, a plurality of page assemblies, each page assembly comprising a page, a reinforcement of less width than the page, and an adhesive strip secured to the page and one face of the reinforcement, said reinforcement projecting beyond said adhesive strip and being folded with said adhesive strip as a hinge to overlap the adjacent page, said page assemblies being arranged with their adhesive strips in direct engagement, adhesive means securing the projecting portions of each reinforcement to the page of the succeeding page assembly.

JOSEPH E. GRANT.

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