AN IMPROVED APPARATUS OR MEANS TO BE EMPLOYED FOR HEATING AIR FOR WARMING ROOMS, APARTMENTS, BUILDINGS, OR PARTS OF SAME, AND FOR OTHER PURPOSES OF A SIMILAR NATURE
Year: 1871

page_text: LETTERS PATENT to Joseph Truswell and William Truswell, both of
Sheffield, in the County of York, Engineers, for the Invention of
"AN IMPROVED APPARATUS OR MEANS TO BE EMPLOYED FOR HEATING AIR
FOR WARMING ROOMS, APARTMENTS, BUILDINGS, OR PARTS OF SAME, AND FOR
OTHER PURPOSES OF A SIMILAR NATURE."
Sealed the 15th August 1871, and dated the 28th February 1871.
PROVISIONAL SPECIFICATION left by the said Joseph Truswell and
William Truswell at the Office of the Commissioners of Patents,
with their Petition, on the 28th February 1871.
We, JOSEPH TRUSWELL and WILLIAM TRUSWELL, both of Sheffield, in
the County of York, Engineers, do hereby declare the nature of the
said Invention for "AN IMPROVED APPARATUS OR MEANS TO BE EMPLOYED FOR
HEATING AIR FOR WARMING ROOMS, APARTMENTS, BUILDINGS, OR PARTS OF SAME,
AND FOR OTHER PURPOSES OF A SIMILAR NATURE," to be as follows:-
This Invention relates to an improved and simple and efficient
apparatus or means to be employed for heating air for warming rooms,
buildings, and parts of buildings, and for other purposes of a like nature,

page_text: such as forcing houses for plants, drying rooms for laundries, or other
rooms for drying, the air being caused to pass through pipes or chambers
fixed in or about a fire.
The apparatus consists of any number of chambers (preferably pipes)
which are fixed in one or more rows across a furnace, the ends resting
on walls of fire-brick or supports of cast iron, or other suitable material.
The pipes (when loose circular pipes are used) are placed so near as to
touch each other laterally, excepting a small space allowed for expansion,
and the horizontal rows of pipes or chambers are placed at such a
distance apart vertically as will allow the heat and smoke from the fire 1
to pass between the rows, which thus form a passage from the fire to
the smoke flue. The fire is placed beneath the end of the lowest row of
pipes. Each pipe or chamber is open at both ends, the air entering
cold at one end and being heated as it passes through is conducted to
the place required to be warmed. The pipes may be fixed so as to admit ]
of being separately removed for cleaning or renewal.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
や
filed by the said Joseph Truswell and William Truswell in the
Great Seal Patent Office on the 21st August 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JOSEPH 2
TRUSWELL and William TrusweLL, both of Sheffield, in the County of
York, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria; by Her
Letters Patent, bearing date the Twenty-eighth day of February, in tho
year of our Lord One thousand eight hundred and seventy-one, in the 2
thirty-fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Joseph Truswell and William Truswell,
Her special licence that we, the said Joseph Truswell and William
Truswell, our executors, administrators, and assigns, or such others
as we, the said Joseph Truswell and William Truswell, our executors,
administrators, and assigns, shall at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
"

page_text: Channel Islands, and Isle of Man, an Invention for "AN IMPROVED
APPARATUS OR MEANS TO BE EMPLOYED FOR HEATING AIR FOR WARMING ROOMS,
APARTMENTS, BUILDINGS, OR PARTS OF SAME, AND FOR OTHER PURPOSES OF A
SIMILAR NATURE," upon the condition (amongst others) that we, the said
Joseph Truswell and William Truswell, our exccutors or administrators,
by an instrument in writing under our, or one of our or their, or one of
their hands and seals, should particularly describe and ascertain the
nature of our said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that we, the said Joseph Truswell and William
Truswell, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement in writing, reference being
had to the accompanying Sheet of Drawings :-
This Invention relates to an improved, simple, and efficient apparatus, or
means to be employed for heating air for warming rooms, apartments,
buildings, or parts of same, and for other purposes of a similar nature, such
as forcing houses for plants, drying rooms for laundries, and other rooms
for drying, the air being caused to pass through pipes or chambers
fixed in or about a fire.
Such being the nature and object of our said Invention for "An Im-
proved Apparatus or Means to be Employed for Heating Air for Warming
Rooms, Apartments, Buildings, or parts of same, and for other Purposes
of a similar Nature," wo will now proceed to describe more in detail
the manner in which the same is to be or may be performed or carried
into practical effect, and in order that the same may be distinctly
understood, we have annexed hereunto 1 Sheet of Drawings, illus-
trative thereof, and have marked the same with figures and letters of
reference corresponding with those in the following explanation thereof,
that is to say :-
On the accompanying Sheet of Drawings, Figure 1 represents a
longitudinal vertical section, and Figure 2 a transverse vertical section
of the improved apparatus, which consists essentially of any suitable or
required number of chambers (preferably pipes or tubes) 1, which are
fixed in one or more rows across a suitable fire-place or furnace cham-

page_text: ber 2, the ends of the pipes or tubes resting on walls 3 of fire-brick
or other suitable material, or by preference being placed and cemented
in equivalent supports of cast iron 3, so as to prevent the escape of the
smoke or other products of combustion into the hot-air chamber 4,
and if required, they may be fitted so as to admit of being separately t
removed for cleaning or removal, so that if from long use any onc
should become deteriorated it can at any time be replaced without
necessitating further repair to the apparatus. The pipes or tubes 1 in cach
row are placed so as to almost touch each other laterally to allow for
expansion. Each horizontal row of pipes or tubes is placed at such 1
a vertical distance above or below the next row as will allow the heated
gases and smoke from the fire or furnace to pass between in the direction
of the arrows X, Figure 1, they thereby form a passage from the fire
to the smoke flue 5, as there shown. The fire being placed beneath or
at one end of the lowest row of pipes, and the smoke flue 5 above or 1
beyond one end of the top row of pipes, so that in some cases where
required it may pass for some distance as an underground fluc. Each
chamber pipe or tube 1 is open at both ends (see Figure 3) one of
which opens into the cold-air chamber G, and the other into the hot-air
chamber 4, so that the cold air in passing through the pipes 1 from:
the former to the latter in the direction of the arrows wc, becomes heated,
and is then conducted from the latter by the hot-air flue 7, to the place
required to be warmed. Over the fire grate is placed a small door,
so as to allow the upper pipes to be swept when requisite.
The apparatus is chiefly constructed of fire-brick or other suitable
fire-rosisting material 8, and the furnace chamber 2 is formed or lined
with cast iron 9 (in the sides (3) of which the cast iron pipes or tubes 1
are by preference fixed and cemented) the foundation of the furnace
chamber being placed about 144 inches above the bars of the fire grate.
Having now described the nature and object of the said Invention;
for "An Improved Apparatus or Means to be Employed for Heating
Air for Warming Rooms, Apartments, Buildings, or Parts of same, and
for other Purposes of a similar Nature," together with the manner in
which the same is to be or may be performed or carried into practical
effect, we would remark in conclusion that we claim as our Invention,
the construction and application of the improved apparatus or means
for the purposes above mentioned substantially as herein-before described.

page_text: and as illustrated on the accompanying Sheet of. Drawings or any mero
modification thereof.
In witness whereof, we, the said Joseph Truswell and William
Truswell, have horcunto set our hands and seals, this Fourteenth
day of August, in the year of our Lord One thousand eight
hundred and seventy-one.
JOSEPH TRUSWELL.
(L.S.)
WILLIAM TRUSWELL. (L.S.)