IMPROVEMENTS IN THE MANUFACTURE OF WROUGHT-IRON TUBES APPLICABLE TO DIFFERENT PURPOSES
Year: 1866

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 38, Porchester Terrace, Bayswater, in the County of
Middlesex, Patent Agent, for the Invention of "IMPROVEMENTS IN THE
MANUFACTURE OF WROUGHT-IRON TUBES APPLICABLE TO DIFFERENT PURPOSES."
-A communication from Cadet Pierre Dubuisson, Manufacturer,
residing at Saint Etienne, Département de la Loire, in the Empire
of France aforesaid.
ealed the 24th July 1866, and dated the 31st January 1866.
PROVISIONAL SPECIFICATION left by the said Henri Adrien Bonneville
at the Office of the Commissioners of Patents, with his Petition, on
the 31st January 1866.
I, HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent
Offices, 24, Rue du Mont Thabor, Paris, in the Empire of France, and
38, Porchester Terrace, Bayswater, in the County of Middlesex, Patent
Agent, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE MANUFACTURE OF WROUGHT-IRON TUBES APPLICABLE TO. DIPPERENT
PURPOSES," communicated to me by Cadet Pierre Dubuisson, Manufacturer,
a person residing at Saint Etienne, Département de la Loire, in the
Empire of France, to be as follows:-
My Invention relates to certain improvements in the manufacture of
wrought-iron tubes of pieces or a cylindrical or prismatic form bored or

page_text: pierced with a central opening, such as gun barrels, screw nuts, and
similar articles. It consists in making the above articles from turnings,
shavings, or other small pieces of iron formed by turning, punching, or
planing iron. To make an iron tube or a gun barrel I introduce the above
materials in a cylindrical or prismatic mould provided with a central fixed
mandrel for forming the hole or bore. A hollow piston is used for com-
pressing the material by means of hydraulic or other power so as to agglo-
merate and give it the form of the piece required. The tube thus
partially agglomerated is next heated and soldered on the mandrel either
by means of a steam hammer, by hand, or even by the use of rolls, and
afterwards, if necessary, drawn out to the required thickness. When
intended for screw nuts the tube may be compressed and soldered piece
by piece, but it is preferred to form a tube of a certain length at a time.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henri Adrien Bonneville in the Great Seal Patent
Office on the 28th July 1866.
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 38, Porchester
Terrace, Bayswater, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of January, in the year of our
Lord One thousand eight hundred and sixty-six, in the twenty-ninth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Henry Adrien Bonneville, Her special licence
that I, the said Henri Adrien Bonneville, my executors, administrators,
and assigns, should in 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, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN THE MANUFACTURE OF
WROUGHT-IRON TUBES APPLICABLE TO DIFFERENT PURPOSES," communicated to
me by Cadet Pierre Dubuisson, Manufacturer, of Saint Etienne, in the
Department of the Loire, Empire of France, upon the condition. (amongst
others) that I, the said Henri Adrien Bonneville, executors or admi-

page_text: nistrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office witliin
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by.
the following statement :-
When
My Invention relates to certain improvements in the manufacture of
wrought-iron tubes or pieces of a cylindrical or prismatic form bored or
pierced with a central opening, such as gun barrels, nuts, and similar
articles. It consists in making the above articles from turnings, shavings,
or other small pieces of iron formed by turning, punching, or planing
iron. To make an iron tube or a gun barrel I introduce the above
material in a cylindrical or prismatic mould provided with a central fixed
mandrel for forming the hole or bore. A hollow piston is used for com-
pressing the material by means of hydraulic or other power so as to
agglomerate and give it the form of the piece required. The tube thus
partially agglomerated is next heated and soldered on the mandrel either
by means of a steam hammer, by hand, or even by the use of rolls, and
afterwards, if necessary, drawn out to the required thickness.
intended for nuts the tube may be compressed and soldered piece by
piece, but it is preferred to form a tube of a certain length at a time.
These tubes are soldered on the mandrel in a stamping tool or in the
grooves
of a flatting mill, the pieces assuming the hexagonal or square
form according to the kind of nuts required. The tubes thus soldered
are next cut into slices by incisions perpendicular to the axis, done on a
lathe or with a saw. Each slice will form a nut, which if cut on the lathe
will have the advantage of having both sides rounded and chamferred.
By the same process and with the same materials all sorts of iron pieces
punched or not with one or several holes may be obtained. Prior to the
cutting of the nuts and whilst the soldered tubes are whole it would be
very easy, seasonable, and inexpensive to size them by planing or grinding,
so as to obtain nuts worked and finished off on every side.
To sum up, the Invention consists in the use of materials unapplied, so
to speak, until now, which agglomerated and soldered by the simplest and
safest process permits the manufacture of certain pieces of wrought iron

page_text: at an exceptionably cheap price. It is an easy inference also that the
cohesion of the metal must be very good from the fact that it is formed.
from agglomerated parts already forged and re-uniting on every side to
form a-solid.
Having thus described my Invention and the manner of carrying it
into effect, what I claim and desire to secure by Letters Patent is the
right of applying turnings or shavings of wrought iron to the manufacture
by compression, hammering; or rolling of pieces of wrought iron, and.
particularly those having a cylindrical or prismatic exterior form punched
with one or several holes, such as is fully described above.
:
In witness whereof, I, the said. Henri Adrien Bonneville, have
héreto set my hand and seal, this Twenty-ninth day of June, in the
year of our Lord One thousand eight hundred and sixty-six."
B. BONNEVILLE. (...)