A METHOD OF MAKING AND MANUFACTURING OF CHIMNEY FRONTS WITH GRATES, ON A NEW CONSTRUCTION AND PRINCIPLE, FOR THE BETTER WARMING OF ROOMS AND OTHER PLACES
Year: 1784

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
LANGMEAD, of Goswell Street Road, in the Parish of Saint Luke, in the
County of Middlesex, Smith and Ironfounder, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Ninth day of February, in the twenty-fourth year of His
reign, did give and grant unto me, the said Joseph Langmead, my executors,
administrators, and assigns, His special licence, full power, sole priviledge
and authority, that I, the said Joseph Langmead, my executors, administrators,
and assigns, and every of them, by myself or themselves, or by my and their
deputy or deputies, servants, or agents, or such others as I, the said Joseph
Langmead, my executors, administrators, or assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during
the term of years therein expressed, should and lawfully might make, use,
exercise, and vend, within that part of His Kingdom of Great Britain called
England, Dominion of Wales, and Town of Berwick-upon-Tweed,. my
Invention of "A METHOD OF MAKING AND MANUFACTURING OF CHIMNEY FRONTS
WITH GRATES, ON A NEW CONSTRUCTION AND PRINCIPLE, FOR THE BETTER WARMING
OF ROOMS AND OTHER PLACES," in such manner as to me, the said Joseph
Langmead, my executors, administrators, and assigns, or any of them, should
in my or their discretion seem meet, and that I, the said Joseph Langmead,
my executors; administrators, and assigns, should and lawfully might have. and
enjoy the whole profit, benefit, commodity, and advantage from time to time

page_text: coming, growing, accrewing, and arrising by reason of the said Invention, for
and during the term of years therein mentioned, to have, hold, exercise, and
enjoy the said licence, powers, priviledges, and advantages therein-before
granted or mentioned to be granted unto me, the said Joseph Langmead, my
executors, administrators, and assigns, for and during unto the full end and
term of fourteen years from the date of the said Letters Patent next and
immediately ensuing, and to be fully compleat and ended, according to the
Statute in such case made and provided; in which said Letters Patent is
contained a proviso that if I, the said Joseph Langmead, should not par-
ticularly describe and ascertain the nature of my said Invention, and in what
manner the same is to be performed, by an instrument in writing under my
hand and seal, and cause the same to be inrolled in His Majesty's High
Court of Chancery within four calendar months next and immediately after
the date of the said Letters Patent, that then the said Letters Patent, and
all liberties and advantages whatsoever thereby granted, shall utterly cease,
determine, and become void, anything herein-before contained to the contrary
thereof in anywise notwithstanding, as in and by the said Letters Patent
(reference being thereunto had, may more fully and at large appear...
NOW KNOW YE, that in compliance with the said proviso, I, the said
Joseph Langmead, do hereby describe and ascertain the nature of my said
Invention, and in what manner the same is to be performed in manner
following; that is to say :-
The same consists of an iron air barrel or box, either fixed on the front of
the back or sides of the cheeks or case, in addition to the front of the backs
or sides of the cheeks of the grate or stove, which, projecting into or going
through the body of the fire, is made hot, to which the external air being
conveyed and thereby heated is discharged therefrom by means of a pipe to
the center of the chimney front, wherein is fixed a fan, patera, or other device
pierced, through which the warm air enters into the room, or, by turning an
inner fan or device, is prevented entering into the room. The air pipe leading
from the barrel or box may also be continued or carried to any other
part of the chimney front, or of the room, or to any other room if required,
and the warm air there discharged as before at pleasure. These air barrells
or boxes are also applicable to any kind of fire grates, stoves, or warming
machines, which, being placed on an iron plate or on a stone with holes
therein, conveys the external air from a channell under the same, either
through hollow legs of the grate or stove, or other warming machine, or by
means of a tube from the iron plate or stone to the air barrell or box in the fire,
and being there heated is discharged by a pipe through any perforated device

page_text: into the room or any other rooms at pleasure. Those grates or stoves which
have chimney fronts have cheecks, which wind by means of a rack and pinion
to increase or decrease the size of the fire at pleasure. They have also double
doors, which inclose a part of the opening of the chimney front when wanted
for the purpose of a blower to quicken the fire. The chimney front is japanned
on iron plates tinned, or white metal plates, and scored or engraved through
the japan to the white surface, in such ornamental manner as may be designed.
The plints or bases of the chimney or grate front may be pierced in any form
for the purpose of receiving the cold air of the room when it is not convenient
to get external air, and in like manner heating and returning the same into
the room.
In witness whereof, I, the said Joseph Langmead, have hereunto sett my
hand and seal, the Nineteenth day of March, in the twenty-fourth
year of the reign of our Sovereign Lord George the Third, by the
grace of God of Great Britain, France, and Ireland King, Defender of
the Faith, and so forth, and in the year of our Lord One thousand
som hunload and nights foun
JOSEPH LANGMEAD. (L.s.)
AND BE IT REMEMBERED, that on the Nineteenth day of March, in
the year above written, the aforesaid Joseph Langmead came before our said
Lord the King in His Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained and specified, in the form
above written. And also the Specification aforesaid was stamped according to
the tenor of the Statute in that case made and provided.
Inrolled the Nineteenth day of March, in the year above written.