AN IMPROVED MEANS OF CLOSING OR FILLING METALLIC JOINTS
Year: 1860

page_text: LETTERS PATENT to Marc Antoine François Mennons, of the British and
Foreign Patent Offices, 39, Rue de l'Echiquier, Paris, in the Empire of
France, for the Invention of "AN IMPROVED MEANS OF CLOSING OR FILLING
METALLIC JOINTS."-A communication from Frédéric Pierre Langenard,
residing at Paris, Mechanical Engineer.
PROVISIONAL SPECIFICATION left by the said Marc Antoine François
Mennons at the Office of the Commissioners of Patents, with his Petition,
on the 24th March 1860.
MARC ANTOINE FRANÇOIS MENNONS, of the British and Foreign Patent
Offices, 39, Rue de l'Echiquier, Paris, in the Empire of France, do hereby
declare the nature of the said Invention for AN IMPROVED MEANS OF CLOSING
OR FILLING METALLIC JOINTS," to be as follows:-
•
The Invention consists in the substitution of leaden strips or wires covered
with a thin sheeting of copper or brass to the minium and other cements
generally employed for closing or filling the joints of certain parts of machinery,
sections of tubing, and other detached pieces of metal. To this end the leaden
strip or wire, with its copper sheath, is interposed between the parts to be
joined, which are then tightened up by screws or other suitable means. The
pressure thus exerted forces the lead into all the chinks or cavities which may
be present, and forms a complete closing of the joint, while the exposed surfaces
are protected from oxidation by the brass or copper sheeting with which they
are covered.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Marc Antoine François Mennons in the Great Seal Patent
Office on the 19th September 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MARC
ANTOINE FRANÇOIS MENNONS, of the British and Foreign Patent Offices, 39,
Rue de l'Echequier, Paris, in the Empire of France, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of March, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Marc Antoine François Mennons, Her special licence that I,
the said Marc Antoine François Mennons, my executors, administrators, and
assigns, or such others as I, the said Marc Antoine François Mennons,
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, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVED MEANS
OF CLOSING OR FILLING METALLIC JOINTS," (a communication from Frédéric
Pierre Langenard, residing at Paris, Mechanical Engineer, upon the con-
dition (amongst others) that I, the said Marc Antoine François Mennons,
my executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and ascer
tain 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
within six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Marc Antoine François Mennons,
do hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement (that is to say):
:-
The Invention consists in the substitution of leaden strips or wires covered
with a thin sheeting of copper or brass to the minium and other cements
generally employed for closing or filling the joints of certain parts of machinery,
sections of tubing, and other detached pieces of metal. To this end the leaden
strip or wire, with its copper or brass sheath, is interposed between the parts to
be joined, which are then tightened up by screws or other suitable means.
The pressure thus exerted forces the lead, with its sheeathing, into all the

page_text: chinks or cavities which may be present, and forms a complete closing of the
joint, while the exposed surfaces are protected from oxidation by the brass or
copper sheeting with which they are covered.
Having thus described the nature of the said Invention, and the manner
of carrying it into effect, I declare that what I claim is, the substitution,
as above noted, of leaden strips or wires covered with a thin sheeting of brass
or copper to the minium and other cements generally employed for closing or
filling metallic joints.
In witness whereof, I, the said Marc Antoine François Mennons, have
hereto set my hand and seal, this Fifteenth day of September, in the
year of our Lord One thousand eight hundred and sixty.