GB1575013A - Book jacket blanks and book jackets - Google Patents

Description

(54) BOOK JACKET BLANKS AND BOOK JACKETS (71) We, BOOK PROTECTORS & CO., a company of unlimited liability, registered under the laws of England of Protector House, 76 South Grove, Walthamstow, London, E17 7NJ, both British subjects, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to book jacket blanks, and to book jackets made therefrom, suitable for use in covering books of a range of different sizes.

One size book jackets made of nonelastomeric plastics material are known, comprising a back sheet to extend over the front and back cover and spine of the book, and inner sheet welded or otherwise affixed to each of the lateral or side edges of the back sheet and to the two longitudinal or top and bottom edges thereof to form pockets. The inner sheets extend over only a portion of the area of the front and back book covers and form pockets with the back sheet to receive the said covers and thereby retain the jacket on the book. Such conventional jackets are suitable for both hard back and paper back books, but any one such jacket is useful only for books of one size or thereabouts. As books are made in a large number of different sides, such conventional jackets have had to be made in a number of different sizes.Book jackets made of elastomeric plastics material are also known, and have the advantage that a jacket of a given size can be stretched to fit books of a range of sizes. However, such jackets are generally suitable only for hard back books, because the tension of the elastomeric material even when only slightly stretched tends to buckle the covers of paper back books. Also, elastomeric plastics materials are often more expensive than the non-elastomeric materials. It is an object of the invention to provide preformed blanks which can be used to make covers for books in a range of dimensions.

According to one aspect of the present invention a book jacket blank comprises a back sheet having book front and book back covering portions, a first inner sheet overlying one of said book front or book back covering portions and joined thereto at the longitudinal edges only thereof, and a second inner sheet overlying the other of said book front or book back covering portions and joined thereto at one or more edges thereof, the back sheet and inner sheets being of non-elastomeric plastics material.

The term "book jacket blank" and "blank" are used herein to refer to preformed articles suitable for convenient location over the covers of books of a range of dimensions to be formed into a well fitting jacket thereon, the blanks having defined and claimed physical characteristics. Blanks embodying the invention can be preformed in a number of different ways as will be seen, and each embodiment may require different treatment to form a jacket conforming to the dimensions of a particular book. Thus, the relationship of the physical characteristics of blanks and jackets formed therefrom may vary both with the way in which the blank is preformed and with the dimensions of book at which it is used and therefore the formed jacket may or may not have the said physical characteristics.

The term "longitudinal" is used herein to refer to the dimensions of the blanks which, when in position on a book will traverse the spine of the book. The "lateral" dimension is at right angles to longitudinal i.e. parallel to the spine.

The plastics material of at least the back sheet of the jacket blank is preferably transparent so that the book cover or a dust jacket thereon, will be visible through the plastics jacket.

Book jacket blanks embodying the invention may be provided for convenient appli cation to both hard back and paper back books of a given height and a variety of widths, a close fit of the resulting jacket on a book being achieved in some embodiments by trimming an oversize blank to size and sticking the trimmed edges of the blank together e.g. by adhesive tape, or in other embodiments by folding a tongue of an oversize blank over the adjacent edge of a book and tucking it under an adjacent inner sheet of the blank.

The second inner sheet of the blanks may be a preformed pocket such as in a conventional one size book jacket or may be one of the inner sheet or inner sheet and tongue configuration of our two co-pending applications Nos: 7928100 (Serial No: 1575014) and 7928101 (Serial No: 1575015) which are divided from this application.

Some book jacket blanks embodying the present invention and the formation of jackets therefrom will now be described, by way of example, with reference to the accompanying drawings in which: Figures 1 and la are perspective and plan views respectively of a bookjacket blank embodying the invention shown fitted on a book; and Figures 2 and 2a are corresponding views of a further such book jacket blank.

Referring to the drawings, each shows an opened book 10 comprising a block of pages 12 and front and back covers 13 and 14 respectively.

Each book 10 has fitted over it an adjustable book jacket blank 20-2, or 20-4 of transparent non-elastomeric plastics sheet material, e.g. polyvinyl chloride, polyester, polyethylene or polypropylene sheets - of appiopriate grades. Each of the blanks 20-2 to 20-4 comprises a, back sheet 22 extending over the full outer area of the covers 13 and 14 and the spine between them, and. at least one inner sheet jointed at its two longitudinal edges to edges of the back sheet 22. The joined edges of the back sheet and the inner sheet or sheets are shown in the drawings by hatched lines. The join may be a weld or other form of attachment of hitherto unjoined sheets, or may be a fold in single sheet.

Figures 1 and la show a blank 20-2 having two innersheets 32 each joined at the two longitudinal edges to the back sheet 22 as indicated by the hatched lines. The covers 13 and 14 are disposed each between an inner sheet 32 and the back sheet 22 with edges of the covers 13 and 14 being closely adjacent the joints. The blank 20-2 is then cut through the inner sheets 32 and the back sheet 22 along lines indicated by the arrow C and the resulting cut edges taped together to form a close fitting pocket about each of the book covers 13 and 14.

If desired the inner sheet 32 only may be cut and the outer sheet folded over.

The blanks of Figures 1 and la can be varied and formed with only one end of the blank having an inner sheet 32 the other end being preformed in a pocket - formed by an inner sheet being attached to the back sheet at 3 edges i.e. as shown at 40 in Figures 2 and 2a.

Figures 2 and 2a show a blank 20-4 having a welded preformed pocket 40 and an inner sheet 34 joined at the two longitudinal edges only to the back sheet 22. The book cover 13 is disposed partially in the pocket 40 and the book cover 14 is disposed between the inner sheet 34 and the back sheet 22 with edges of the cover 14 closely adjacent the joins. The back sheet 22 has a tongue portion 23 extending beyond the side edge of the cover 14 which is folded over that edge along the broken line indicated by the arrow E and tucked under the inner sheet 34 to form a close fitting pocket about the cover 14. If desired the tongue portion 23 may be trimmed or folded e.g.

along lines X, to ease the entry of the tongue portion 23 under the inner sheet 34.

A piece of double-sided adhesive tape 24 may be provided on the outer side of the tongue portion 23 such that that portion can be adhered to the inside of the inner sheet 34. Alternatively the tongue portion and the inner sheet 34 may be taped together along the outer margin of the inner sheet 34.

When covering books of small width it may be that the tongue portion 23 will protrude beyond the inner edge of the inner sheet 34 when folded under it. This protruding area of the tongue portion 23 may be cut away, there may be tear strips or folds provided whereby this area may be removed without cutting implements, or the area may be folded back on or under the inner sheet 34. When folded back under the inner sheet 34 the fold may-be such that the said area is beneath the remainder of the tongue portion, or between it and the inner sheet 34.

It will be appreciated that double-sided adhesive tape such as-24 above can be positioned at various points on the inside or outside surfaces of the inner sheet 34 andl or tongue portion 23 to enable the tongue portion -- whether folded back or not to be affixed to the inner sheet 34.

The blank of Figures 2 and 2a can be varied and formed without the preformed pocket 40, this being replaced by other inner sheet and tongue portion combinations or by configurations described and claimed in our co-pending applications re ferred to above..

Instead of using adhesive tape to secure portions of the jacket blank together, appropriate areas of the blank could be coated with a layer of adhesive material which is non-tacky but which will adhere to a correspondingly coated area of the blank when the two areas are brought together in face-to-face contact. It will again be appreciated that various combinations of the methods of sticking the covers together about the book may be used.

WHAT WE CLAIM IS: - 1. A book jacket blank comprising a back sheet having book front and book back covering portions, a first inner sheet overlying one of said book front or book back covering portions and joined thereto at the longitudinal edges only thereof and a second inner sheet overlying the other of said book front or book back covering portions and joined thereto at one or more edges thereof, the back sheet and inner sheets being of non-elastomeric plastics material.

2. A book jacket blank as claimed in Claim 1 wherein the second inner sheet is joined to said other covering portion at the longitudinal edges only thereof.

3. A book jacket as claimed in Claim 1 wherein the second inner sheet is joined to the other covering portion at the longitudinal edges thereof and at the outer lateral edge thereof to form a pocket.

4. A book jacket blank as claimed in any of Claims 1 to 3 wherein the back sheet extends longitudinally beyond the outer lateral edge of the first inner sheet to form a tongue portion.

5. A book jacket blank as claimed in Claim 4 including adhesive means on the tongue portion or the first inner sheet to retain the tongue portion in place on a book.

6. A book jacket blank comprising a back sheet having an inner sheet forming a pocket at one end thereof to receive a book front or back cover, and an inner sheet spaced from the pocket extending between and joined to the opposed longitudinal edges of the back sheet, the back sheet extending longitudinally beyond the inner sheet to form a tongue portion, the inner sheet and tongue portion in use providing a pocket for location about the other book cover, the back sheet, pocket and inner sheets being of non-elastomeric plastics material.

7. A book jacket blank substantially as described with reference to Figures 1 and la, or 2 and 2a of the accompanying drawings.

8. A book jacket made to cover a book from a book jacket blank as claimed in any of the preceding Claims.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. ferred to above.. Instead of using adhesive tape to secure portions of the jacket blank together, appropriate areas of the blank could be coated with a layer of adhesive material which is non-tacky but which will adhere to a correspondingly coated area of the blank when the two areas are brought together in face-to-face contact. It will again be appreciated that various combinations of the methods of sticking the covers together about the book may be used. WHAT WE CLAIM IS: -

1. A book jacket blank comprising a back sheet having book front and book back covering portions, a first inner sheet overlying one of said book front or book back covering portions and joined thereto at the longitudinal edges only thereof and a second inner sheet overlying the other of said book front or book back covering portions and joined thereto at one or more edges thereof, the back sheet and inner sheets being of non-elastomeric plastics material.

2. A book jacket blank as claimed in Claim 1 wherein the second inner sheet is joined to said other covering portion at the longitudinal edges only thereof.

3. A book jacket as claimed in Claim 1 wherein the second inner sheet is joined to the other covering portion at the longitudinal edges thereof and at the outer lateral edge thereof to form a pocket.

4. A book jacket blank as claimed in any of Claims 1 to 3 wherein the back sheet extends longitudinally beyond the outer lateral edge of the first inner sheet to form a tongue portion.

5. A book jacket blank as claimed in Claim 4 including adhesive means on the tongue portion or the first inner sheet to retain the tongue portion in place on a book.

6. A book jacket blank comprising a back sheet having an inner sheet forming a pocket at one end thereof to receive a book front or back cover, and an inner sheet spaced from the pocket extending between and joined to the opposed longitudinal edges of the back sheet, the back sheet extending longitudinally beyond the inner sheet to form a tongue portion, the inner sheet and tongue portion in use providing a pocket for location about the other book cover, the back sheet, pocket and inner sheets being of non-elastomeric plastics material.

7. A book jacket blank substantially as described with reference to Figures 1 and la, or 2 and 2a of the accompanying drawings.

8. A book jacket made to cover a book from a book jacket blank as claimed in any of the preceding Claims.