Improvements in Book-cover Protectors.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Book-cover Protectors.
I, JAMES YATE JOHNSON, Chartered Patent Agent, of 115, St. Vincent Street,
Glasgow (being a communication from abroad by George Cornwall, of Mount
Vernon, in the County of Westchester and State of New York, U.S.A.), do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to provide an improved book-cover protector
which will be applicable for covering books of various sizes.
To this end the invention consists of a book-cover protector comprising a central
backing sheet of approximately square shape adapted to be placed upon the
book-back with one of its diagonals extending along the central back line of the
book and four corner-pocket pieces adapted to enclose the corners of the book-
back and be secured to the backing sheet at their meeting edges.
The improved. book-cover protector comprises a central backing piece of
approximately square shape and corner pocket pieces or envelopes, the backing
piece being adapted to be applied to the back of the book with one of its diagonals
extending along the central line of the back of the book and the corner pocket
pieces or envelopes being adapted to fit over the corners of the book cover and be
secured to the adjacent edges of the backing sheet.
In applying the cover protector to a book, the longitudinal corner portions of
the central backing sheet are bent inwardly under the sheet and next to the
back of the book, the diagonal of the backing sheet extending along the central
line of the back of the book. These corners are bent over sufficiently far to
make the length of the backing piece the proper length for the back of the
book. It is then preferred to cut off one of the transversely projecting or side
corners of the backing sheet to form a straight edge at one side to come even.
with one side of the book-back. The opposite transversely projecting or side
corner of the backing strip extends to the outer edge of the opposite side of the
book cover.
One of the corner pocket pieces is then placed over a corner of
the side of the book back and secured to the central backing-piece. Then the
opposite corner piece is placed over the opposite corner of the side of the book
back, the pocket piece being fitted snugly against the edge of the book back and
the straight edge of the backing sheet formed by cutting off the first named
side corner.
With the two corner pocket pieces and backing sheet applied as just described,
the second named side corner of the backing sheet is bent around the edge of the
opposite side of the back of the book and held securely in its place while the
remaining two corner pocket pieces are applied to the corners of that side and
secured in place upon the backing sheet.
The application of the cover protector just described is the preferred appli-
cation of my invention, but should the central backing sheet be too small to
allow for the cutting off and bending over of the transverse or side corners, the
central hacking piece may be applied to the book without folding over or cutting

page_text: the corners, the corner pocket pieces overlapping the central backing sheet
sufficiently to make a serviceable cover.
The preferred method of making the corner pocket pieces is by taking a square
sheet and severing into four equal triangular parts by cutting it along its
diagonal lines. Each of these triangular pieces then has a strip cut away from
its long side, one-half of the length of said side and is folded centrally, the pro-
jecting strip upon the long side being then provided with mucilage or other
adhesive substance and bent over and securely fastened to the body of the
corner pocket piece. The corners of the completed pocket pieces or envelopes
are then cut off and rounded to give them a more finished appearance. A strip
of adhesive material is also applied to the inner face of one side of each of the
envelopes or corner pocket pieces for attaching them to the backing sheet.
It will be observed that the improved book cover protector is applicable for
covering books of greatly varying sizes and shapes, the corner pieces overlapping
the central backing sheet and each other more when the book is small than
when the book is large. The cover protector may be ornamented with any
suitable designs and may have any desired printed matter applied to it to desig-
nate the book which it contains.
Dated this 23rd day of January 1899
JOHNSONS,
Petitioner's Agents, 115 St. Vincent Street, Glasgow.
I, JAMES YATE JOHNSON, Chartered Patent Agent, of 115, St. Vincent Street,
Glasgow (being a communication from abroad by George Cornwall, of Mount
Vernon, in the County of Westchester and State of New York, U.S.A.), do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
The object of this invention is to provide an improved book-cover protector
which will be applicable for covering books of various sizes.
To this end the invention consists of a book cover protector comprising a central
backing sheet of approximately square shape adapted to be placed upon the
book-back with one of its diagonals extending along the central back line of the
book and four corner pocket-pieces adapted to enclose the corners of the book
back and be secured to the backing-sheet at their meeting edges.
Referring to the accompanying drawings, which form a part of this specifica-
tion, Figure 1 is a perspective view of an open book, showing portions of the
book-cover protector applied thereto, this view being for the purpose of showing
the manner of applying the cover-protector to the book. Fig. 2 is a plan view
of the book-cover protector detached from the book and looking at the inside.
Fig. 3 is a plan view of the central backing-sheet of the cover-protector.
is a plan view, partly broken away, of one of the corner pocket-pieces. Fig. 5
Fig. 4
is a detail perspective view of the same. Fig. 6 is a
central backing-sheet in position against the back of the book and the four
plan view representing the
corner pocket-pieces detached therefrom. In this figure the application of the
central backing-sheet to the book is slightly different from the preferred form
illustrated in Figs. 1 and 2. Fig. 7 is a plan view of the closed book having the
cover-protector applied. Fig. 8 is a plan view of a blank sheet, illustrating the
manner of cutting and folding the blanks for forming the corner pocket-pieces.

page_text: Fig. 9 is a plan view of a partially-completed corner pocket-piece. Fig. 10 is a
similar view of the completed corner pocket-pieces.
The improved book-cover protector comprises a central backing-piece 1 of
approximately square shape and corner pocket-pieces or envelops 10, the backing-
piece being adapted to be applied to the back of the book with one of its diagonais
extending along the central line of the back of the book and the corner pocket-
pieces or envelops being adapted to fit over the corners of the book-cover and be
secured to the adjacent edges of the backing-sheet.
Referring to Figs. 1 and 2, it will be observed that the backing-sheet 1 has the
longitudinal corner portions 2 3 bent inwardly under the sheet and next to the
back of the book 15, the diagonal of the backing-sheet extending along the
central line of the back of the book. The corner-pieces 23 are bent over
sufficiently far to make the length of the backing-piece the proper length for
the back of the book. It is then preferred to cut off one of the transversely-
projecting corners, such as 4, to form a straight edge at one side to come even
with one side of the book-back 15". The opposite transversely-projecting
corner 5 of the backing-strip extends to the outer edge of the opposite slide 15 of
the book-cover. One of the corner pocket-pieces 10 is then placed over a corner of
the slide 15" of the book-back and secured to the central backing-piece 1. Then
the opposite corner-piece 10 is placed over the opposite corner of the side 15" of
the book-back, the pocket-piece being fitted snugly against the edge of the book-
back and the straight edge 4 of the backing-sheet formed by cutting off the
corner 4. Fig. 1 shows these parts as far as described, with the exception of
the second corner pocket-piece. With the two corner-pieces and backing-sheet
applied as just described, the corner 5 of the backing-sheet 1 is bent around the
edge of the side 15 of the back of the book and held securely in its place, while
the remaining two corner pocket-pieces 10 are applied to the corners of the
side 15 and secured in place upon the backing-sheet 1. The position of the
several parts of the book-cover protector in its preferred form is shown in Fig. 2
with the book removed.
The application of the cover-protector just described with reference to Figs. 1
and 2 is the preferred application of the invention but should the central back-
ing-sheet 1 be too small to allow for the cutting off and bending over the
transverse corners the central backing-piece may be applied to the book as
shown in Fig. 6, the corner pocket-pieces overlapping the central backing-sheet
sufficiently to make a serviceable cover. In the form shown in Fig. 6 it will
be observed that the longitudinally-extending corners of the central sheet are
bent under, as in the preferred form.
Referring to Figs. 8, 9, and 10, it will be observed that the preferred method
of making the corner pocket-pieces is by taking a square sheet and severing it
into four equal triangular parts abcd by cutting it along its diagonal lines.
Each of these pieces then has a strip e (indicated by dotted lines) cut away from
it and is folded centrally upon the line f. (Also indicated by dotted lines.)
The projecting strip g is then provided with mucilage or other adhesive substance
and is bent over along the line g and securely fastened to the body of the corner
pocket-piece. The several steps described in the manufacture of the corner
pocket-pieces are illustrated in Figs. 8, 9 and 10. The corners of the completed
pocket or envelop are then cut off and rounded to give them a more finished
appearance. A strip of adhesive material h is also applied to the inner face of
one side of each of the envelopes or corner pocket-pieces.
It will be observed that the improved book-cover protector is applicable for
covering books of greatly-varying sizes and shapes, the corner-pieces overlapping
the central backing-sheet and each other more when the book is small than
when the book is large.
The cover-protector may be ornamented with any suitable designs and may
have any desired printed matter applied to it to designate the book which it
contains.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. A book-cover protector comprising a central backing-sheet of approximately
square shape adapted to be placed upon the book-back with one of its diagonals
extending along the central back line of the book, and four corner pocket-pieces
adapted to enclose the corners of the book-back and be secured to the backing-
sheet at their meeting edges, substantially set forth.
2. A book-cover protector comprising a central backing-sheet of approximately
square shape adapted to be placed upon the book-back with one of its diagonals
extending along the central back line of the book and its two projecting corners
bent back under the ends of the book-back, and four corner pockets adapted to
enclose the corners of the book-back and the adjacent diagonally-presented sides
of the backing-sheet and be secured to said backing-sheet at their meeting edges,
substantially as set forth.
3. A book-cover protector comprising an approximately square-shaped back-
ing-sheet adapted to be placed upon the back of the book with one of its diagonal
extending along the central back line of the book and one of its transversely-
presented corners cut off or bent back flush with the edge of one side of the
book-cover and the other transversely-presented corner bent around the edge of
the other side of the book-cover, and four corner pocket-pieces inclosing the four
corners of the book-cover, and resting snugly against the edges of the book-cover
and cut-off or bent over corners of the backing-sheet, said corner pocket-pieces.
being secured to the backing-sheet at their adjacent edges, substantially as set
forth.
1000
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.