IMPROVEMENTS IN BOOKS, AND IN THE MODE OF BINDING Books
Year: 1878

page_text: LETTERS PATENT to Frank Wirth, of the Firm of Wirth and Company, Patent
Solicitors, at Frankfort-on-the-Main, in the Empire of Germany, for the
Invention of "IMPROVEMENTS IN BOOKS, AND IN THE MODE OF BINDING
Books." A communication from Hermann Diedrich Baumfalk, Bookbinder,
of Esens, in the Empire of Germany.
PROVISIONAL SPECIFICATION left by the said Frank Wirth at the Office
of the Commissioners of Patents on the 26th September 1878.
FRANK WIRTH, of the Firm of Wirth and Company, Patent Solicitors, at
Frankfort-on-the-Main, in the Empire of Germany.
"IMPROVEMENTS IN BOOKS,
AND IN THE MODE OF BINDING BOOKS." A communication from Hermann
Diedrich Baumfalk, Bookbinder, of Esens, in the Empire of Germany.
The improvements consist in manufacturing books and such like by placing and
binding the sheets as follows:-After the book has been rolled in front and behind,
and provided with a protecting sheet on each side, the back is cut through in such
a manner that each sheet is single, that is all the folds are cut off. When the first
and last sheet of the book are folded back, then several sheets on each side of the
book are pasted together at their backs.
The book is now ready for the form. The form consists of a block provided with
half-round grooves suited for different sizes of books, and a framework which can
be moved from end to end of said block, this frame being adjustable so as to
suit various sizes of books and hold them in the centre of the groove, whereby an
equal curve for the back is ensured. The book, cut as described, having been placed
in this form is shaken until every sheet rests in the groove, that is, are all flush up
to curve of the form; a board is then placed on each side of the book in such a
manner that the curve of the back somewhat projects from between the boards.
The whole is now placed in a press with the back projecting, which is then worked
with a file or other suitable tool, the back having first been damped to prevent the
[Price 2d1

page_text: paper dust from forcing itself between the sheets of paper.
When the back has
been properly filed, the rougher the better, it is well brushed, then covered with a
thin coat of freshly melted glue, and afterwards with a thicker coat laid on with a
stiff brush; the back linen is then well hammered on with its woolly side down-
wards; last of all the end sheets are folded back and thus attached.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Frank Wirth in the Great Seal Patent Office on the 20th March
1879.
FRANK WIRTH, of the Firm of Wirth and Company, Patent Solicitors, at
Frankfort-on-the-Main, in the Empire of Germany. "IMPROVEMENTS IN BOOKS,
AND IN THE MODE OF BINDING Books." A communication from Hermann
Diedrich Baumfalk, Bookbinder, of Esens, in the Empire of Germany.
The improvements consist in manufacturing books and such like by placing and
binding the sheets as follows:-After the book has been rolled in front and behind
and provided with a protecting sheet on each side, the back is cut through in such
a manner that each sheet is single, that is all the folds are cut off. When the first
and last sheets of the book are folded back, then several sheets on each side of the
book are pasted together at their backs. The book is now ready for the form. The
form consists of a block provided with half-round grooves suited for different sizes
of books, and a framework which can be moved from end to end of said block,
this frame being adjustable so as to suit various sizes of books and hold them in the
centre of the groove, whereby an equal curve for the back is ensured. The book,
cut as described, having been placed into this form is shaken until every sheet rests
in and against the groove, that is are all flush up to curve of the form; a board is
then placed on each side of the book in such a manner that the curve of the back
projects somewhat from between the boards. The whole is now placed in a press
with the back projecting, which is then worked with a file or other suitable tool,
the back having first been damped to prevent the paper dust from forcing itself
between the sheets of paper. Care should be taken that the sheets lay flat and even
without folds; the file should also be worked from the centre to the ends. When
the back has been properly filed, the rougher the better, it is well brushed, then
covered with a thin coat of freshly melted glue, and afterwards with a thicker coat
laid on with a stiff brush; the back linen is then well hammered on with its woolly
side downwards; last of all the end sheets are folded back and thus attached.
CLAIM.
The mode of binding, substantially as described, and books so formed.
In witness whereof, I, the said Frank Wirth, have hereunto set my hand and
seal, this Nineteenth day of March, A.D. 1879.