IMPROVEMENTS IN THE GRATES OF REVER- BERATORY AND OTHER METALLURGIC FURNACES
Year: 1861

page_text: of France, for the Invention of "IMPROVEMENTS IN THE GRATES OF REVER-
BERATORY AND OTHER METALLURGIC FURNACES."-A communication from
Adolphe Grisard Vanzuylen, residing at Chaudfontaine-lez-Liège, in the
Kingdom of Belgium.
Sealed the 16th October 1861, and dated the 5th August 1861.
COMPLETE SPECIFICATION filed by the said Marc Antoine François
Mennons at the Office of the Commissioners of Patents, with his Petition
and Declaration, on the 5th August 1861, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MARO
ANTOINE FRANÇOIS MENNONS, of the British and Foreign Patent Offices, 39,
Rue de l'Echiquier, Paris, in the Empire of France, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN THE
GRATES OF REVERBERATORY AND OTHER METALLURGIC FURNACES," (communicated
to me by Adolphe Grisard Vanzuylen, a person resident at Chaudfontaine-
lez-Liège, in the Kingdom of Belgium,) and have petitioned Her Majesty to
grant unto me, my executors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made solemn declaration that it is a com-
munication:
NOW KNOW YE, that I, the said Marc Antoine François Mennons, do
hereby declare that the following Complete Specification under my hand and

page_text: seal fully describes and ascertains the nature of the Invention, and the manner
in which the same is to be performed, reference being had to the Figures
of the accompanying Drawing, and to the letters marked thereon, that is
to say-
In ordinary reverberatory puddling and similar furnaces the arrangement of
the grate is subject to many disadvantages, among which may be noted the
obstruction to the entry of air, resulting from the volume and position of the
fire-bars, the difficulty of removing the slags produced, and the loss of fuel
sustained, when to remedy these defects a sufficient spacing is left between the
bars.
Figures 1, 2, 3, of the accompanying Drawing represent a furnace grate
fitted with thin cast-iron bars, and set upon a framing D; at the back
extremity of this framing are set (one on each side) two pivots E, E, turning
on the bearings G, G, which are mounted on the sides of the ash-box. The
inner extremity b of the frame is sustained by two chains or tie rods, which
may be raised or lowered for the cleansing of the grate by means of the
winch C, Fig. 1, or by the lever arrangement H, Fig. 4. It will be seen that
the defects above noted as inherent to grates of the ordinary construction are
completely obviated by this combination, which, while giving freer passage to
the air, allows the fire-bars to be cleaned at will, and without the slightest
difficulty.
Having now described the nature of the said improvements and the manner
of carrying them into effect, I would have it understood that I do not confine
myself to the precise details above laid down, as these may be modified without
departing from the characteristic features of the Invention; but what I claim
and desire to protect by Letters Patent is, the substitution to the massive
fire-bars at present generally employed in reverberatory and other metallurgic
furnaces of a series of thin bars, mounted on an oscillating frame, arranged
as, above described and represented in the Figures of the accompanying
Drawing.
In witness whereof, I, the said Marc Antoine François Mennons, have
hereto set my hand and seal, this Third day of August, One thou-
sand eight hundred and sixty-one.