A NEW AND IMPROVED FLY COVER FOR PROTECTING STITCHED Books
Year: 1868

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and
Foreign Patent Offices, 24, Rue du Mont Thabor, Paris, in the
Empire of France, and 10, Sackville Street, Piccadilly, in the
County of Middlesex, Patent Agent, for the Invention of "A
NEW AND IMPROVED FLY COVER FOR PROTECTING STITCHED Books." -A
communication from Charles François Auguste Viscount de
Brettes-thurin, residing at Toulouse, in the Empire of France
aforesaid.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonneville
at the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 18th January 1868, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent, Offices, 24,
Rue du Mont Thabor, Paris, in the Empire of France, and 10, Sackville
Street, Piccadilly, in the County of Middlesex, Patent Agent, send
grecting.

page_text: WHEREAS I am in possession of an Invention for "A NEW AND
IMPROVED FLY COVER FOR PROTECTING STITCHED Booкs," a communication
from Charles François Auguste Viscount de Brettes-thurin, a person
resident at Toulouse, in the Empire of France aforesaid, and have
petitioned Her Majesty to grant unto me, my executors, administrators,
and assigns, Her Royal Letters Patent for the same, and made solemn
declaration that it is a communication.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the Invention and the
manner in which the same is to be performed, that is to say :-
The Invention communicated to me relates to a fly cover or folding
envelope for stitched books, whereby they are more easily read and
at the same time protected against injury as if covered in the ordinary
manner of bound books. This fly cover is composed of the two flat
pieces or sides of ordinary covers mounted together with the back
on hinges or joints; this latter is composed of two similar parts
connected by a hinge or a caoutchouc band. On the free edges of
each flat piece or side of the said cover, three blades or leaves are
mounted, which fold inwardly, the borders of these on the borders
of those, so that the last folded down maintains the whole by means
of little locks or fixtures, or any other such like analogous fastenings.
The back and the flat pieces or sides of the said cover may be made
with the materials used for ordinary covers; but it is preferable to use,
as also for the blades or leaves, any sort of metal, so as to diminish the
thickness of the cover and obtain greater solidity.
Having thus explained the nature of the said Invention, I will now
more particularly describe the same, reference being had to the
accompanying Drawings which represent an open cover or envelope
anade comformably with my system, the leaves or blades of the right
side being viewed down, and those of the left side viewed open.
A is the back divided into two similar parts; B is the hinge or
joint connecting these two parts, so as to give flexibility and elasticity
to the back, which hinge or joint may be replaced by a caoutchouc
band; C, C, are the two exterior flat pieces or sides of the cover;
D, D', D, are the metallic leaves or blades hinged or jointed on to the
sides, the leaf D on the outer edge and the leaves D', D", on the 'upper
and lower edges; E, E, are two little locks or fixtures fixed-on the

page_text: leaf D"; F, F, are sheaths or recesses situate one on the flat part of
the cover, and the other embodied with the hinge or joint existing at
that part of the cover; G, G, are knobs impeding the heads of the
little locks or fixtures. To apply this cover on to a stitched book it is
merely necessary to open the three leaves or blades D, D', D", as
set forth on the left-hand side of the Drawing, to place the back in
correspondence with that of the cover, then to open and apply against
the flat pieces or sides of the fly cover the sheets of paper forming
the cover of the stitched work, over whichs the three metallic leaves
D, D, D", are successively folded, commencing by that D, and
terminating by that D", which maintains the whole when the
little locks or fixtures E, E, with which it is furnished are driven into
their sheaths or recesses F, F.
Having thus described the nature of the said Invention and the
manner of carrying the same into effect, I would have it understood
that I do not confine myself to the precise details above enumerated,
as the forms, dimensions, fastenings, and material may obviously be
modified without departing from the principle of the Invention
according to its intended applications; but what I claim is, the
disposition and combination of moveable metallic blades or leaves
with flat parts or sides of a cover with an elastic or broken back,
in order to form an envelope intended to protect stitched books,
substantially as herein-before fully set forth and described.
In witness whereof, I, the said Henry Adrien Bonneville, have
hereunto set my hand and scal, this Sixteenth day of January,
in the year of our Lord One thousand eight hundred and
sixty-eight