IMPROVEMENTS IN THE CON- STRUCTION OF FIRE GRATES FOR DOMESTIC AND OTHER PURPOSES
Year: 1880

page_text: In the Matter of Letters Patent granted to John Reynard Pickard of Leeds
in the county of York Engineer for "IMPROVEMENTS IN THE CON-
STRUCTION OF FIRE GRATES FOR DOMESTIC AND OTHER PURPOSES,"
bearing date the 13th day of December 1880
"
Gouves i quay case made and provided.
TO ALL TO WHOM THESE PRESENTS SHALL COME I JOHN REYNARD
PICKARD of Leeds in the county of York send greeting whereas I the said John
Reynard Pickard in pursuance of a proviso in the said Letters Patent contained
did by an instrument in writing under my hand and seal (commonly called a
specification) particularly describe and ascertain the nature of my said invention
and in what manner the same is to be performed and did cause the same instru-
ment to be filed in the Great Seal Patent Office in Her Majesty's High Court of
Justice on the 13th day of June 1881. And whereas since the said Specification
was filed as aforesaid, I have discovered that certain matters described and claimed
in the said Specification as new are to some extent old by reason of Publication
prior to the date of the said Letters Patent granted to me as aforesaid. And
whereas in consequence of such discovery as last aforesaid, I am desirous with the
leave of Her Majesty's Solicitor General to file in the Great Seal Patent Office in
Her Majesty's High Court of Justice such Disclaimer and Memorandum of Alteration
as hereinafter contained or expressed
are
A
NOW KNOW YE that I the said John Reynard Pickard by and with the '
leave and consent of Her Majesty's Solicitor General do alter and amend the said
specification in the following manner that is to say,-
I disclaim the words " stoves, boiler flues" which occur at line 7 page 2 of the
Queens Printers copy of the said Specification; I also disclaim the words "This
method is equally applicable to the furnaces of steam and other boilers" which
2 [Price 4d1

page_text: "
occur at lines 18 and 19 of the same page; I also disclaim the words "and stoves
which occur at line 27 of the same page; I also disclaim so much of the said
specification as is contained in line 35 of the same page and in all the succeeding
lines down to and including line 45 of the same page and also in the claiming part
of the said specification I disclaim the words "Secondly The combination of the
tubular atmospheric pipes CC, and combustion chamber A Figs 5. 6. 7 and 8"
which are contained in lines 3 and 4 on page 3 of the said copy.
And also I hereby enter the following Memorandum of Alteration that is to say
I insert the words and figures "by figures 1. 2. 3. and 4," between the words
"illustrated and in" which occur at line 1 page 3 of the said copy; I substitute
the word "of" for the word "in" referred to in the same line; also substitute
the word "Secondly" for the word "Thirdly" which occur at line 5 page 3 of the
said copy; and insert the words "constructed and operating" in place of the word
substantially which occurs at line 6 of the same page
And I do hereby declare that the above Disclaimer and Memorandum of
Alteration do not nor does either of them extend the exclusive right granted to
me by the said Letters Patent.
And in order that the effect of the Disclaimer and Memorandum of Alteration
as aforesaid may be clearly understood I annex a copy of the said Specification
as it will appear when so altered and amended, the preamble and testing clause
being omitted.
The object of my invention is to construct fire grates and like appliances so as
to produce an intense heat from the commonest fuel and at the same time prevent
the discharge of carbonized vapour or smoke from the chimneys: also by my
arrangement of domestic fire grates, the nuisance of smokey rooms is entirely
done away with, the whole of the carbon being consumed in a chamber no soot
can collect.
The arrangement is as follows.-In or near an ordinary domestic fire grate or
range, I form one or more chambers having perforations or apertures, communicating
therewith, and other openings to admit air in the chambers; the action is as
follows, The carbon and gases pass through the apertures, mix with the air
supplied through the other openings, and by reason of the intense heat of the
chambers the carbon is entirely consumed or burnt; the chambers I construct
preferably of fire clay. Such being the nature and object of this my said
invention in order that the same may be fully understood I have hereunto annexed
a sheet of drawings illustrative thereof and have marked the same with figures and
letters of reference.
grates.
Fig 2 is a plan view of Fig. 1.
Figs 3 and 4 are elevations in section.
A is the fire back, in which are apertures C. C., through which the smoke and
gas pass into the combustion chamber B; D is the opening for cold air, E is the
damper, and F the rod for regulating the draught, the smoke and gas pass through 4
the fire into the combustion chamber, and are completely burnt before entering the
chimney shaft H
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 to be secured to me by the
hereinbefore in part recited Letters Patent is,-
Firstly. The general arrangement for consuming smoke constructed and
arranged in the manner hereindescribed and illustrated by Figs 1. 2. 3 and 4 of the
drawing hereunto annexed.

page_text: Secondly. The combination of apertures C. C. combustion chamber B and
opening D constructed and operating as shewn and described on Figs 1. 2. 3 and 4
of the drawings hereunto annexed.
In witness whereof I the said John Reynard Pickard have hereunto set my
hand and seal this seventh day of July in the year of our Lord one thousand
eight hundred and eighty two [sic]
Notice of the application for leave to file this Disclaimer and Memorandum of
Alteration having been advertized in accordance with my direction, I hereby grant
my Fiat giving leave to the above named John Reynard Pickard to file in the
Office of the Commissioners of Patents with the Specification to which the same
relates the foregoing Disclaimer and Memorandum of Alteration.
Dated this twenty second day of August 1883

page_text: LETTERS PATENT to John Reynard Pickard, of Leeds, in the County of York,
Engineer, for an Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
FIRE GRATES FOR DOMESTIC AND OTHER PURPOSES."
PROVISIONAL SPECIFICATION left by the said John Reynard Pickard
at the Office of the Commissioners of Patents on the 13th December 1880.
JOHN REYNARD PICKARD, of Leeds, in the County of York, Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION OF FIRE GRATES FOR DOMESTIC AND
OTHER PURPOSES.”
The object of my Invention is to construct fire grates, stoves, and like appliances,
so as to produce an intense heat from the commonest fuel, and at the same time
prevent the discharge of carbonized vapour or smoke from the chimneys; also, by
my arrangement, the nuisance of smoky rooms is entirely done away with, the
whole of the carbon being consumed in a chamber, no soot can collect.
The arrangement is as follows:-In or near an ordinary domestic fire grate or
range I form one or more chambers, having perforations or apertures communicating
therewith, and other opening to admit air into the chambers, the action is as
follows:-The carbon and gases pass through the apertures, mix with the air,
and by reason of the intense heat of the chambers the carbon is entirely consumed
or burnt. This method is equally applicable to the furnaces of steam and other
boilers; the chambers I construct preferably of fire clay.

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 13th June 1881.
JOHN REYNARD PICKARD, of Leeds, in the County of York, Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION OF FIRE GRATES FOR DOMESTIC AND
OTHER PURPOSES."
The object of my Invention is to construct fire grates, stoves, boiler flues, and
like appliances, so as to produce an intense heat from the commonest fuel, and at
the same time prevent the discharge of carbonized vapour or smoke from the
chimneys; also, by my arrangement, of domestic fire grates the nuisance of smoky
rooms is entirely done away with, the whole of the carbon being consumed in a
chamber, no soot can collect.
The arrangement is as follows:-In or near an ordinary domestic fire grate or
range I form one or more chambers, having perforations or apertures communicating
therewith, and other openings to admit air into the chambers; the action is as
follows: The carbon and gases pass through the apertures, mix with the air
supplied through the other openings, and by reason of the intense heat of the
chambers the carbon is entirely consumed or burnt. This method is equally
applicable to the furnaces of steam and other boilers; the chambers I construct
preferably of fire clay.
Such being the nature and object of this my said Invention, in order that the
same may be fully understood, I have hereunto annexed a Sheet of Drawings
illustrative thereof, and have marked the same with Figures and letters of
reference..

page_text: arranged in the manner herein described and illustrated in the Drawing hereunto
annexed.
Secondly. The combination of the tubular atmospheric pipes C, C, and combustion
chamber A, Figs. 5, 6, 7 and 8.
Thirdly. The combination of apertures C, C, combustion chamber B, and
opening D, substantially as shewn and described on Figures 1, 2, 3, and 4, of the
Drawing hereunto annexed.
In witness whereof, I, the said John Reynard Pickard, have hereunto set my
hand and seal, this Twenty sixth day of April, in the year of our Lord
One thousand eight hundred and eighty one.
Witness,
JOHN E. WALSH,
Patent Agent,
Crossley Street, Halifax,
and 30, East Parade, Leeds.
JOHN REYNARD PICKARD. (L.S.)