AN IMPROVED MEANS OF PREVENTING THE BREAKAGE OF THE GLASS CHIMNEYS OF GAS BURNERS OR LAMPS, AND GLASS VESSELS OF PETROLEUM LAMPS, AND THE ACCIDENTS RESULTING THEREFROM
Year: 1875

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and
Foreign Patent Offices, 18, Rue de la Ohaussée d'Antin, Paris,
France, and 6, Piccadilly, in the County of Middlesex, Patent
Agent, for the Invention of "AN IMPROVED MEANS OF PREVENTING THE
BREAKAGE OF THE GLASS CHIMNEYS OF GAS BURNERS OR LAMPS, AND GLASS
VESSELS OF PETROLEUM LAMPS, AND THE ACCIDENTS RESULTING THEREFROM."
-A communication from Alexis Perlau, residing at Antwerp,
in the Kingdom of Belgium.
PROVISIONAL SPECIFICATION left by the said Henri Adrien Bonne-
ville at the Office of the Commissioners of Patents, with his
Petition, on the 24th April 1875.
I, HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent
5 Offices, 18, Rue de la Chaussée d'Antin, Paris, France, and 6, Picca-
dilly, in the County of Middlesex, Patent Agent, do hereby declare the
nature of the said Invention for "AN IMPROVED MEANS OF PREVENTING THE

page_text: ""
BREAKAGE OF THE GLASS CHIMNEYS OF GAS BURNERS OR LAMPS, AND THE GLASS
VESSELS OF PETROLEUM LAMPS, AND THE ACCIDENTS RESULTING THEREFROM,'
communicated to me by Alexis Perlau, a person resident at Antwerp,
in the Kingdom of Belgium, to be as follows:-
The Invention relates to envelopping the glass chimneys of oil, gas, or |
petroleum lamps, and the glass vessels of the said latter lamps in a
metallic casing formed of wire gauze or network more or less fine in
order to prevent their bursting, and to avoid accidents resulting from the
bursting of petroleum lamps.
The network or wire gauze formed of zinc, copper, or other suitable
metal envelops and surrounds the glass chimneys and vessels so as to
keep the different parts together and in place should the glass craok or
evon break in pieces. When applied to the glass vessels the network or
wire gauze will be so arranged as to allow the said parts to give way to
inside pressure and to become more or less separated from each other
in case the petroleum burning in the inside of the vessel cause it to
burst.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henri Adrien Bonneville in the Great Scal Patent
Office on the 21st October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18,
Rue de la Chaussée d'Antin, Paris, France, and 6, Piccadilly, in the
County of Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fourth day of April, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Henri Adrien Bonneville, Her special licence
that I, the said Henri Adrien Bonneville, my executors, administrators,
and assigns, or such others as I, the said Henri Adrien Bonneville,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,

page_text: other suitable material envelops and entirely surrounds the glass in
such a manner that should the glass happen from whatever cause to
crack or even to burst in different parts all the pieces would be held in
place, and the glass could continue to be used like a new glass.
Fig. 3 in the Drawing shows the application of the Invention to the
body or recipient of a petroleum lamp. The shell or metallic network
made as above described envelops and surrounds the recipient so as to
keep all the parts in place and united together in case the said recipient
should happen either to crack or to receive a shock sufficient to break it.
And in case again from whatever cause the petroleum contained in the
said recipient should happen to catch fire, the shell or metallic not-
work would prevent an explosion, and would also maintain in place the
different parts of the lamp, while allowing the said parts to give way to
the pressure from inside and to be more or less separated the one from
the other. This covering shell or metallic network can also be applied
to all articles of glass, crystal, earthenware, or china used for lighting
purposes, but still more to bottles, soda water vessels, decanters, jugs,
feet of drinking glasses, or other utensils which are .apt to break by
placing them roughly upon a hard body.
It must be observed that the casing shell or metallic network is not
composed of fixed meshes, as has been dono hitherto, especially for
encasing the apparatuses of gaseous waters, and which possess nó
elasticity whatever, and are made by hand, whilst the network which
constitutes the main part of the said Invention is made by machinery
with floating meshes, that is to say, that the metal wires are not twisted
and fastened to each mesh, as, for instance, the meshes of a fishing
net are, but only interlaced the one in the other, as shown in the
Drawings.
Having thus described the nature of the said Invention, and the
manner of carrying it into effect, I would have it understood that I do
not confine myself to the precise details above enumerated, as these may
obviously be modified without departing from the principle of the
Invention, but what I claim is an elastic shell or network made of
suitable metal wire, the meshes of which are interlaced and not fastened
the one with the other for surrounding, protecting, and preventing the
breakage of the glass chimneys and all articles of glass, crystal,

page_text: earthenware, or china, substantially as above described and shown in
the accompanying Drawings.
In witness whereof, I, the said Henri Adrien Bonneville, have
hereunto set my hand and seal, this
day of
in the year of our Lord One thousand eight hundred and seventy-
five.