IMPROVEMENTS IN FURNACE GRATES
Year: 1875

page_text: LETTERS PATENT to Napoléon Alexander Coste, of Port Said, Egypt,
at present residing at Messrs. Cory Brothers & Co's. Office,
6, Crosby Square, in the City of London, for the Invention of
"IMPROVEMENTS IN FURNACE GRATES."-A communication from abroad
by Alexander Gouget, of Rue Bourdaloue, Nimes, in the Republic
of France:
Sealed the 28th September 1875, and dated the 18th June 1875.
PROVISIONAL SPECIFICATION left by the said Napoléon Alexander
Coste at the Office of the Commissioners of Patents, with his
Petition, on the 18th June 1875.
I, NAPOLÉON ALEXANDER COSTE, of Port Said, Egypt, at present
residing at Messrs Cory Brothers & Co's. Office, 6, Crosby Square,
in the City of London, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IT FURNACE GRATES," to be as follows:-
This Invention has for its object improvements in furnace grates,

page_text: The fire-bars have their ends circular, and their ends are carried on
bearings in two transverse bars or plates at the front and back of the
furnace.
The fire-bars are arranged in two series, which may be called the
odd-and-even series, the bars of the odd series being the first, third, ||
fifth, &c., counting from either side of the furnace; and the even series
being the second, fourth, &c. The bottoms of the bars of the two series
rest in bearings on two transverse bars, so that by moving either of these
transverse bars to or fro a rocking motion is given to the fire-bars of
one series without moving the bars of the other series.
The even fire-bars are deeper than the odd, and the transverse bar for
rocking them is therefore at a lower level than the transverse bar for
rocking the odd fire-bars. The transverse bar for rocking the even bars
has a rack whose teeth point downwards on its under side, whilst the
other transverse bar has a frame on its under side carrying a rack whose :
teeth point upwards. Two pinions carried on a common axis take into
these racks, so that by turning the axis of one of the transverse bars
(and with it the fire-bars of its series) is carried in one direction, whilst
the other transverse bar is carried in the opposite direction. Thus by
turning the axis to and fro a rocking motion is given to all the fire-bars
in such a way that every fire-bar is rocking in the opposite direction to
the two bars next to it.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 25
filed by the said Napoléon Alexander Coste in the Great Seal
Patent Office on the 17th December 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, NAPOLÉON
ALEXANDER COSTE, of Port Said, Egypt, at present residing at Messrs.
Cory Brothers & Co's. Office, 6, Crosby Square, in the City of London, 80
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of June, in the year of

page_text: Having thus described the nature of the said Invention, and the
manner of performing the same, I would have it understood that what
I claim as my improvements in furnace grates is the rocking fire-bars,
substantially as described.
In witness whereof, I, the said Napoléon Alexander Coste, have
hereunto set my hand and seal, this First day of October, in
the year of our Lord One thousand eight hundred and seventy-
five.