US3256029A - Bookbinding package and method - Google Patents

Description

June 14, 1966 T. GROOM IV 3,256,029

BOOKBINDING PACKAGE 'AND METHOD Filed July 51, 1963 United States Patent 3,256,029 BOOKBINDING PACKAGE AND METHOD Thomas Groom IV, 8 Exeter Road, Beverly, Mass.

Filed July 31, 1963, Ser. No. 299,032 Claims. (Cl. 28121) This invention relates to bookbinding, and provides means and method for binding sheet material into book form with great ease, simplicity, and lack of expense.

A main object of the invention is to provide a package which may be used to bind one book quickly and easily, without need of complicated or other machinery, and without requiring that excess materials be made up and wasted if not used. Additional packages may be used to bind additional books, as desired.

The invention features a liquid-tight envelope enclosing a piece of pervious material such as fabric, impregnated with liquid adhesive material. In preferred embodiments, the envelope is quite flat, and the fabric extending through it is temporarily secured to the envelope at spaced spots to prevent bunching therein.

Other objects, advantages, and features will appear from the following description of preferred embodiments, taken together with the attached drawings, in which:

FIG. 1 is a view in perspective, partially broken away 3,256,029 Patented June 14, 1966 "ice exact cutting lines being determined by the height of the book to be bound; i.e., by the length of the sheets or folds of the stack being bound. In preferred embodiments there will be included, as along the area 16 as shown, a scale graduated in inches to facilitate cutting off to the desired length. The side edge portion 16 is and showing how one end is cut away in practicing my 1 new method; 1

FIG. 2 is a sectional view taken at 2-2 of FIG. 1; FIG. 3 is a perspective view showing my preferred package after it has been cut to proper length and cut along its sealed side edge;

FIG. 4 is a perspective view showing a number of thicknesses of paper in a stack with its side edge in contact with the glue-carrying fabric of the package;

FIG. 5 is a similar partial view showing how the fabric and liquid-tight layers are folded over on the outside of the stack;

FIG. 6 is a similar view showing the book thus formed standing on its end, and with the liquid-tight layer removed;

FIG. 7 is a partial, perspective view of a modification in which a perforated plastic layer is interposed between fabric and outer liquid-tight layer; and

FIG. 8 is a partial, perspective view showing the invention as embodied in a book made up by binding an unburst continuous fanfold paper sheet.

Referring now to the drawings in greater detail, there is shown in FIG. 1 a bookbinding package indicated generally at 10. The package comprises an envelope 12 formed by folding a polyethylene-foil laminate material (shown without indicating the lamination) on itself on fold line F, the polyethylene layer inside, and heat sealing the envelope along the end edge portions 14 and side edge portion 16. Prior to folding, a piece of open-weave gauze or fabric 18 is secured to the polyethylene side of the envelope material at spaced small areas 20, preferably by heat-sealing. Before the envelope is completely sealed, adhesive 22 is placed within it in amount sufiicient to wet the fabric and permit the latter to wet the edges of paper contacting it in use as will be seen. The presently preferred adhesive is a polyvinyl acetate Water emulsion type adhesive with solids content of about 40%, and viscosity of about 3750 centipoises at 78 F., sold by the Cudahy Packing Company under the name Resoflex PB Grade.

The fabric 18 cooperates with the adhesive to promote even distrbution thereof through the envelope and the fabric, which is held against creeping or bunching by thet spot adhesion to the liquid-tight outer material 12.

In use, the envelope is cut inside each strip 14, the

then cut off, as along line 24, and the package opened out to the position shown generally in FIG. 3 (though with the fourth corner of the fabric against the liquidtight sheet, as are three in this figure), this step taking place with the outer surface of the liquid-tight sheet being brought down on a horizontal surface, as it is shown in FIG. 4, so that any adhesive not actually soaked up by the fabric, nevertheless does not escape. The stack of 'sheets 26 and covers 28 (if desired) are then brought down on the wet fabric, as shown in FIG. 4. The indicia 29 of centerline and equal distance on each side thereof facilitate central positioning of the stack. The liquidtight sheet 12 not only protects the horizontal surface during this stage, but permits jogging of the sheets against the fabric by bringing the entire assembly down forcefully on the horizontal surface as many times as desired. The liquid-tight sheet 12 is then folded up against covers 28, as shown in FIG. 5, its liquid-tight nature permitting this to be done without soiling the hands. Finally, the liquid-tight sheet 12 is removed, leaving the fabric 18 exposed for drying. The result is a simply but solidly bound volume, particularly desirable as in preparing records for permanent retention.

If a more attractive and even more durable binding is desired, a perforated plastic sheet may be interposed between the liquid-tight sheet 112 and fabric sheet 118,

as shown in FIG. 7. The sheets 112 and 140 may be i Other embodiments within the invention and claims will I occur to those skilled in the art.

I claim:

1. A bookbinding package comprising a liquid-tight envelope, a fabric binder disposed in said envelope, a perforated sheet of non-pervious material interposed between said fabric binder and said envelope, and liquid adhesive disposed in said envelope and through said binder, said binder being of area sufficient to cover the spine of a book and overlie the front and back portions of said book and said envelope including at least one liquid-tight sheet of area sufiicient to cover said spine and overlie said front and back portions.

2. The package of claim 1 in which said fabric is adhered at spaced places to said liquid-tight sheet.

3. The package of claim 2 in which said liquid-tigh sheet and said fabric binder are centrally folded, said envelope being formed by sealing together the two halves of said liquid-tight sheet around the three edges thereof other than the edge defined by the central fold.

4. The method of bookbinding which includes the steps of cutting through a liquid-tight envelope containing a pervious sheet and liquid adhesive, placing an edge of a multiplicity of leaves assembled in stack relation against said porous sheet, adhering transverse outer portions of said porous sheet against the two opposed outermost leaves of the stack thereof by pressing said envelope over said porous sheet at said transverse outer portions, removing said envelope from said porous sheet, and drying said pervious sheet.

5. The method of bookbinding which includes the steps of opening a liquid-tight envelope containing a pervious sheet and liquid adhesive, placing an edge of a multiplicity of leaves assembled in stack relation against said porous sheet, adhering transverse outer portions of said porous sheet'against the two opposed outermost leaves of the stack thereof by pressing said envelope over said porous sheet at said transverse outer portions, removing said envelope from said porous sheet, and drying said pervious sheet.

References Cited by the Examiner UNITED STATES PATENTS Wishart.

Millar.

Van Boytham 20646 Lappala 20647 Adell 20656 Pitman 206-63.2

10 THERON E. CONDON, Primary Examiner.

GEORGE E. LOWRANCE, Examiner.

M. L. 'RICE, Assistant Examiner.

Claims (1)

1. 5. THE METHOD OF BOOKBINDING WHICH INCLUDES THE STEPS OF OPENING A LIQUID-TIGHT ENVELOPE CONTAINING A PERVIOUS SHEET AND LIQUID ADHESIVE, PLACING AN EDGE OF A MULTIPLICITY OF LEAVES ASSEMBLED IN STACK RELATION AGAINST SAID POROUS SHEET, ADHERING TRANSVERSE OUTER PORTIONS OF SAID POROUS SHEET AGAINST THE TWO OPPOSED OUTERMOST LEAVES OF THE STACK THEREOF BY PRESSING SAID ENVELOPE OVER SAID POROUS

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