US2057986A - Book cover protector - Google Patents

Description

Oct. 20, 1936. WALRAVEN 2,057,986

BOOK COVERPROTEOTOR FilfJ-Jd July 15 1935 2 Sheets-Sheet 1 gwpmm Alba/"f T walraielx Oct. 20, 1936. A. T. WALRAVEN I I BOOK COVER PROTECTOR.

z Sheets-Sheet? Filed July 15, 1935' Patented Oct. 20, 1936 UNITED STATES PATENT OFFIQE Application July 15,

7 Claims.

This invention relates to new and useful improvements in book cover protectors.

One object of the invention is to provide an improved protector formed of a rectangular sheet of material which may be readily applied to books of various sizes. An important object of the .invention is to provide an improved protector wherein each tab which folds over one corner of the book cover is arranged to be bent upon itself so as to give an increased thickness of material and a stronger reinforcing at the corners.

A further object of the invention is to provide an improved one-piece protector which is so arranged that the various tabs and flaps may be formed by tearing along perforated guide lines which eliminates the necessity of any cutting operation to fit the protector to a book cover.

Another object of the invention is to provide an improved protector which is so constructed that a greater area thereof may be coated with an adhesive'whereby the elements of the protector may be more securely fastened together and said protector'more adequately held on a book cover, and also whereby said elements are less likely to become detached in use.

Still another object of the invention is to providean improved protector which is simple in construction and cheap in manufacture, and which may be readily attached by a school child, the arrangement of the protector being such that there is no danger of its being applied in the wrong way to the cover.

A construction designed to carry out the invention will be hereinafter described, together with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Figure l is a face view of the outer side of a protector sheet constructed in accordance with the invention.

Figure 2 is a partial View of the inner or reverse side of said protector, and showing the back tongue folded inwardly.

Figure 3 is a view, similar to Figure 2 and showing one of the side flaps folded inwardly,

Figure 4 is a view, similar to Figure 3 showing the upper and lower flaps folded inwardly,

Figure 5 is a similar view, showing the corner tabs folded inwardly over the outer face of the corner of the protector,

Figure 6 is a partial view of the outer face of 1935, Serial No. 31,467

the protector with the flaps and tabs folded as in Figure 5,

Figure '7 is a View similar to Figure 6 and showing the next step,

Figure 8 is a similar view showing the edge of the corner tabs folded inwardly over the side flap to complete the corner, and

Figure 9 is a view showing the side opposite to that in Figure 8 with the corner complete.

In the drawings, the numeral III designates a sheet of heavy paper, or other suitable material from which the protector is made. At the top and bottom of the center of the sheet, a pair of diverging perforated lines I I are provided. These lines may be of any desired length. EX- tending from the edge of each side and inwardly toward the center of the sheet, a plurality of parallel perforated lines I2 are similarly provided. The outer face of each entire corner of the sheet is gummed or covered with suitable adhesive I3, H

as clearly shown in Figure l and it is pointed out that the area of the gummed surface is a substantial increase over the usual protector of this type.

In fitting the protector to a book, the latter as indicated by the dotted lines A, is laid on' the sheet so that its corners B register with one of the perforated guide lines I2. The sheet is then torn along these perforated lines, as is indicated in Figure l. The sheet is also torn along the perforated lines I I. It is noted that in applying the protector to the cover of a larger book, the cover of said book may overlap the inner ends of the lines I I and I2. In such case, the sheet need not be tom the full length of the perforations of each line, but the tear can stop in alinement with the edge of the cover.

The book is removed and the sheet I I] is turned over so that its inner face is uppermost as shown in Figure 2. The diverging tears along the lines II at the top and bottom of the sheet form top and bottom tongues I4 which are folded inwardly (Figure 2). The book is then laid on the sheet so that its back rests on the tongues I4 which act to reinforce the back. When the sheet has been torn along the lines I2, elongated end flaps M are formed and these flaps are folded inwardly over the book cover boards, as shown in Figure 3. As clearly shown in this figure, tearing along the perforated lines II and I2 provide top and bottom flaps I5, as well as rectangular shaped corner tabs I6. It is pointed out that this folding exposes a portion of the gummed surface at the top and bottom of each end flap. After the end fiaps it have been folded down, the top and bottom flaps are folded inwardly thereover (Figure 4), being fastened thereto by the exposed gummed surface, the rectangular tabs I3 projecting outwardly, as shown. It is pointed out that when the flaps have been so folded, a portion l3 of the gummed surface I3 is on the outer face of each corner, the remainder being on the inner side of the tabs 6.

The next step is to fold the corner tabs l6 inwardly over the outer face of the corner of the sheet, as is clearly shown is Figures 5 and 6. This causes the ungummed, or plain side of the tab to overlie the portion of gummed surface I3 at the corner, whereby the tab may be secured thereto. The gummed portion l3 extends only substantially half the length of the tab (Figure 6) whereby only the half nearer the edge of the book cover is glued to said corner.

The inner or unfastened half of said tab I6 is then bent so as to overlie itself, as shown in Figure 7. When so bent, the tab is divided into two triangular shaped reinforcing tabs which may be secured together by the gummed surface which is present on the tab Hi. It is noted that when the tab is bent, the gummed surfaces on each of the triangular reinforcing tabs formed thereby, lie contiguous to each other. Thus, it will be seen that the innermost tab I! is secured to the corner by the gummed surface l3 while the topmost tab I1 is secured to the tab therebeneath.

After the tab l6 has been bent upon itself to form the reinforcing tabs l'l, it will be seen that a narrow strip l8 extends from the topmost tab beyond the edge of the sheet. This strip, of course, has its inner surface gummed because it is an extension of the topmost tab [1. The strip at each corner is bent inwardly over the top and bottom flaps l5 and are secured thereto, as is clearly shown in Figures 7 and 8. It will be seen that the protector is securely attached and due to the increased gummed surface is securely fastened thereto.

It is noted that the perforated lines H and [2 not only serve as guide lines in applying the cover but also eliminate the cutting operation, although in some cases it might be desirable to eliminate perforations and merely provide printed guide lines along which the sheet may be cut to form the tongues, flaps and tabs. By bending the corner tabs upon themselves, it will be seen that a triple thickness of material is provided at each corner. This positively reinforces the corner and assures its lasting the life of the protector. The sheet after being torn or out along the lines II and [2 can be folded only the one way to apply it to a cover, which makes its application exceedingly simple. The protector comprises a single rectangular piece of material with a minimum of guide lines, which reduces the manufacturing cost. The rectangular corner tabs folded to overlie themselves provide an increased reinforcing thickness without additional cost or trouble in applying the protector. It is pointed out that when the perforations are employed, the perforated lines which are not torn are covered due to the particular folding of the end and top and bottom flaps, whereby there is no danger of said perforations being torn accidentally after the protector has been applied. Thus, the additional unused perforations, which make for the adjustability of the protector to books of various sizes, do not tend to weaken the strength of said protector.

What I claim and desire to secure by Letters Patent is:

l. A book protector having flaps along its top, bottom and outer edges, tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded outward over the outer face of the corner and then being folded upon itself to reinforce the corner, after which said tab is folded inwardly over the adjacent flap and secured thereto.

2. A book protector having flaps along its top, bottom and outer edges, tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded outward over the outer face of the corner and then being folded upon itself to form a projecting strip which is folded inwardly over the adjacent flap and secured thereto.

3. A book protector having flaps along its top, bottom and outer edges, rectangular tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded' outward so as to be contiguous to the outer face of the corner, said tab then being folded upon itself to provide a triple thickness of material at the corners.

4. A book protector having flaps along its top, bottom and outer edges, rectangular tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded outward so as to be contiguous to the outer face of the corner, said tab then being folded upon itself to provide a triple thickness of material at the corners, said folding of the tab providing a narrow strip which is folded inwardly and secured to the adjacent flap.

5. A book protector having flaps-along its top, bottom and outer edges, rectangular tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded outward so as to be contiguous to the outer face of the corner and being secured to said face, said tab then being folded upon itself, the folded sections being fastened together whereby a triple thickness of material is provided at the corner.

6. A book protector having flaps along its top, bottom and outer edges, rectangular tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded outward so as to be contiguous to the outer face of the corner and being secured to said face, said tab then being folded upon itself, the folded sections being fastened together whereby a triple thickness of material is provided at the corner, the folding of said tab providing a narrow strip which is arranged to be folded inwardly and secured to the adjacent top or bottom flap.

'7. A book protector having flaps along its top, bottom and outer edges, tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, each tab being folded outward over the outer face of the corner and then being folded upon itself to reinforce the corner.

ALBERT T. WALRAVEN.

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