IMPROVEMENTS IN FURNACES FOR BURNING AND DESTROYING REFUSE."
Year: 1880

page_text: LETTERS PATENT to John Reynard Pickard, of Leeds, in the County of York,
Engineer, for an Invention of "IMPROVEMENTS IN FURNACES FOR BURNING
AND DESTROYING REFUSE."
PROVISIONAL SPECIFICATION left by the said John Reynard Pickard at the
Office of the Commissioners of Patents on the 9th March 1880.
JOHN REYNARD PICKARD, of Leeds, in the County of York, Engineer. "IMPROVE-
MENTS IN FURNACES FOR BURNING AND DESTROYING REFUSE."
My Invention relates to an improved furnace, so constructed as to dispense with
much of the labour now employed in manipulating the same, and is also of more
simple construction, less costly, less liable to choke and get out of order than those
now in use.
I construct my furnace without partition, and with an opening or orifice (in the
centre) the whole length of the furnace for the reception of refuse, so that the carta
or trucks bringing the refuse can shoot it direct into the opening, instead of
shovelling it into small holes or hoppers by hand, as in the furnaces now in use.
The exits for the heated gases are by flues constructed in the crown or top part
of the furnace, which are carried separately to a chamber where the flue dust is
deposited, and can be removed without entering the flues. The area and draught
are maintained by inclining them, thus the working of the furnace is not interrupted.
I construct the mouths of the furnace larger than usual, so as to be more easily and
readily cleaned, instead of the men inhaling the stench from the long laying of the
refuse on the platforms of the furnaces now in use. By my arrangement this is
entirely prevented; the longest laying refuse being at the bottom of my opening
and nearest the fires, the gases and stench-arising-therefrom-pass-through-the fires
and thence to the flues.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Reynard Pickard in the Great Seal Patent Office on the 9th
September 1880.
JOHN REYNARD PICKARD, of Leeds, in the County of York, Engineer. "IMPROVE-
MENTS IN FURNACES FOR BURNING AND DESTROYING REFUSE."
My Invention relates to an improved construction of furnace, so constructed as to
dispense with much of the labor in manipulating the same, and is also of more
simple construction, not so liable to be choked and get out of order as those now
in use.
I construct my furnace (the inside of which is arched) without partition, and with
a large opening or orfiice (in the centre of the top of the furnace) for the reception
of refuse; the opening or orifice is the whole length of that portion of the furnace
into which the refuse is to be tipped, so that the carts or trucks bringing the refuse
can tip or shoot the same direct into the opening or orifice. This arrangement of
opening entirely prevents the men from inhaling the stench arising from the long
laying on the rubbish on the top of the furnace which must occur with furnaces
now in use having platforms and small holes or hoppers, the refuse for which is
tipped on to the platform and has to be shovelled into the hoppers by hand.
The opening or orifice into which the refuse is to be tipped should be provided with
suitable lids or covers, to be closed after the refuse has been tipped into the said
opening or orifice.
The mouths of the furnace I make much larger than usual, so as to be more easily
and readily cleaned.
The arch of the furnace is supported by abutment girders, and in the case of
large furnaces the arch may be further supported by vertical brick pillars arising
from the bed of the furnace.
The exits for the heated gases are by flues constructed in the crown or top part
of the furnace, carried separately to a chamber where the flue dust is deposited,
and can be removed without entering the flues. The area and draught are main-
tained by inclining the flues sufficiently to prevent the dust from lying or being
deposited in them; thus being self cleaning, the working of the furnace is not
interrupted for the purpose of cleaning the flues.
I have found that in the working of furnaces such as are at present in use for the
burning and deodorizing of refuse the combustion and destruction of the gases and
vapours which are distilled off the refuse are not in all cases complete. In order to
ensure the perfect combustion and consequent complete destruction of such gases, if
any such should escape from my furnace, I place one or more additional or purifying
fires in the flue between the chamber where the flue dust is deposited and the
chimney, and I found that by this arrangement the products of distillation, in passing
over these additional or purifying fires, are completely burned and destroyed, and
that the gases and vapours pass out at the top of the chimney perfectly deodorized.
Moreover, by my arrangement of furnace the longest laying refuse is at the bottom
of the opening nearest the fires.
Such being the nature and object of this my said Invention, in order that the
same, and the manner in which the same may be fully understood, I have
hereunto annexed two Sheets of Drawings illustrative thereof, and have marked
the same with figures and letters of reference, similar letters of reference indicating
the same or corresponding parts throughout all the Figures of the Drawings.
DESCRIPTION OF DRAWINGS.
Fig. 1 shews a front elevation of furnace constructed according to my Invention.
T
T

page_text: A is the furnace arched as shewn at Fig. 3, having large opening B for the
reception of refuse; the opening B is the whole width of the furnace (see Figure 5,
Sheet 2), so that the carts or trucks bringing the refuse on to the top C of the
furnace can shoot or tip the same direct into the opening or orifice B. D, D, are
the doors of the furnace, the openings E, E, of which are larger than usual, to
facilitate the cleaning thereof; the arch of furnace is supported by abutment
girders K, K. M, M, are the fire bars. L is the level bed of furnace. F, F, are the
inclined flues in the crown or top part G of the furnace; the flues F, F, are carried
separately to the dust chamber H. J, J, are purifying fires through which the gases,
vapour, and stench (arising from the burning refuse) pass before entering the
chimney flues, see the direction of the arrows in Figures 3, 4, and 5.
Having thus described and particularly ascertained the nature of my said
Invention, and the manner in which the same may be performed or carried into
effect, I would have it understood that what I claim as the Invention to be secured
to me by the hereinbefore in part recited Letters Patent is,--
Firstly. The furnace for burning and destroying refuse, constructed and arranged
in the manner herein described and illustrated in the Drawings hereunto annexed,
either with or without the purifying fires J, J, Figures 2 and 4.
Secondly. The addition to furnaces for burning and destroying refuse of purifying
fires, substantially as shewn at J, J, on Figures 2 and 4 of the Drawings hereunto
annexed, through which the gases and vapour pass for the purpose of being
deodorized before entering, the chimney flues.
In witness whereof, I, the said John Reynard Pickard, have hereunto set my
hand and seal, this Fourth day of September, in the year of our Lord
One thousand eight hundred and eighty.
JOHN REYNARD PICKARD. (L.S.)
Witness,
JOHN E. WALSH,
Patent Agent and Consulting Engineer,
Crossley Street, Halifax,
and 30, East Parade, Leeds.