IMPROVEMENTS IN THE CONSTRUCTION OF STOVES QR OTHER HEATING APPARATUSES FOR WARMING & VENTILATING PUBLIC & PRIVATE BUILDING D HAMARA TT 0 دو
Year: 1874

page_text: LETTERS PATENT to William Truswell, of Sheffield, and Richard
Wainman Holden, of Sh.ffield, both in the County of York, for the
Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF STOVES QR OTHER
HEATING APPARATUSES FOR WARMING & VENTILATING PUBLIC & PRIVATE
BUILDING D
HAMARA
TT
0
دو
PROVISIONAL SPECIFICATION left by the said William Truswell and
Richard Wainman Holden at the Office of the Commissioners of
Patents, with their Petition, on the 20th August 1874.
We, WILLIAM TRUSWELL, of Sheffield, and RICHARD WAINMAN
HOLDEN, of Sheffield, both in the County of York, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN THE CONSTRUCTION
OF STOVES OR OTHER HEATING APPARATUSES FOR WARMING & VENTILATING PUBLIC
& PRIVATE BUILDINGS, BATHS, HOTHOUSES, DRYING HOUSES, & TURKISH BATHS,"
to be as follows:-

page_text: houses, and for other similar uses) with wrought or cast iron hollow
gills, having a large heating sarface, although occupying a comparatively
small space, the heating surfaces being equally capable of expansion and
contraction.
The improved stove or heating apparatus is constructed with any
suitable number of deep grooves or corrugation (of cast or wrought
iron) arranged in segments or series of one, two, or more together, the
grooves being made from about one to twelve inches deep, and oval
or square, according to the size of the stove or heating apparatus required,
and arranged in straight, circular, or other shaped segments.
When the stove is circular, oval, or of any similar or suitable shape,
we propose to screw each segment to those adjoining it, and when square
or of other similar shape we propose to screw the end segments to two
end plates to form the ends, and to form the top of the stove of a top
plate provided with a smoke pipe. -
The ash-pit will be made of brickwork, and on its top will be fitted
an iron plate to receive the segments of corrugations or grooves.
When fixed below a room or apartment, the brickwork of the
apparatus will require to be provided at the bottom with inlets for
cold air.
We also propose providing an inner valve to check the draught and to
retain the heat, and to cause it to pass up the corrugations and heat the
air, and not to pass up the centre as in stoves of the usual construction.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Truswell and Richard Wainman Holden 2
in the Great Seal Patent Office on the 18th February 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
TRUSWELL, of Sheffield, and RICHARD WAINMAN HOLDEN, of Sheffield,
in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 8
Letters Patent, bearing date the Twentieth day of August, in the
year of
our Lord One thousand eight hundred and seventy-four, in the thirty-

page_text: eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Trustwell and Richard Wain-
man Holden, Her special license that we, the said William Truswell
and Richard Wainman Holden, our executors, administrators, and
assigns, or such others as we, the said William Truswell and Richard
Wainman Holden, our executors, administrators, and assigns, should 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 Channel Islands, and Isle of Man, an Inven-
tion for "IMPROVEMENTS IN THE CONSTRUCTION OF STOVES OR OTHER HEATING
APPARATUS FOR WARMING AND VENTILATING PUBLIC AND PRIVATE BUILDINGS,
BATHS, HOTHOUSES, DRYING HOUSES, AND TURKISH BATHS," upon the condition
(amongst others) that we, the said William Truswell and Richard
Wainman Holden, our executors or administrators, by an instrument in
writing under our, or one of our, or their, or one of their hands and scals,
should particularly describe and ascertain the nature of the said In-
vention, 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 William Truswell and Richard
Wainman Holden, 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,
and on reference being had to the accompanying Sheet of Drawings,
that is to say :-
This Invention relates to certain improvements in portable and fixed
stoves, or apparatus for heating air for the purposes of warming and
ventilating churches, schools, and other public or private buildings,
bathrooms, hothouses, drying houses, shops, entrance halls of houses,
and for other similar uses, and it consists in constructing such stoves or
air heating apparatus with wrought or cast iron vertical hollow or
corrugated gills, in order to obtain a large heating surface occupying a
comparatively small space, and so as to allow of the heating surfaces
having an equal capability of expansion and contraction.
Such being the nature and object of our said Invention, we will
now proceed to describe more in detail the manner in which the same is

page_text: 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 one
Sheet of Drawings illustrative thereof, and have marked the same with
figures of reference corresponding with those in the following explana-
tion thereof, that is to say:
The improved apparatus is illustrated on the accompanying Drawings
as constructed of a circular form, but it may be constructed of a square
shape, or of any other suitable form; it is shown in elevation in
Figure 1 and in sectional plan in Figure 2. The latter Figure is made
to illustrate some of the various forms or shapes which we give to the
hollow gills or corrugations, and serves as an effective illustration of the
principle of our Invention.
We construct our improved stove or air heating apparatus with any
required number of deep grooves, corrugations, or vertical hollow gills 1
of any suitable scross section, which may be formed of wrought or cast-
iron plates simply bent to shape as at 5, and suitably connected or
united in segments of one, two, or more together, as at 10, 9, or of single
unbent plates 21, screwed, rivetted, or bolted together as shown at 3,
Figure 2.
The depth (from front to back) of the hollows may vary, from say about
one inch to about twelve inches, as at 2, 3, 4, 6, 7, and S, Figure 2, and
the hollows may be formed oval, square, as at 4, half round, as at 2,
tapering, as at 6, straight, as at 7, angular, as at 8, 21, or of other
suitable shape or cross section, and the hollow gills formed by these
means may be arranged (and connected cither singly, as at 10, or in
segments of two or more together as at 9), in a straight, curved, circular,
(Figure 2) or other shaped Figure in plan.
When however the hollow gills are thus arranged so as to form an oval,
circular, or other similarly shaped figure of fire-chamber in plan, we
prefer to screw or otherwise connect each segment to those adjoining it
on either side as at 9, 10, till the shape or form desired is complete, and
when arranged so as to form a square or other similarly shaped figure or
shape we prefer to screw, or otherwise connect the end segments of each
side to plain end plates forming the ends of the fire-chamber of the
stove.
We form the top of the stove of a flat, curved, or other shaped plate 11,
and provide it with a smoke pipe 12, and we construct the ash-pit 13 of

page_text: brickwork, and place on its top an iron plate 14 to receive the lower
ends of the segments of corrugated grooves or hollow gills 1. (When
fixed below a room or apartment we provide the brickwork of the ash-
pit 13 with inlet holes for cold air.)
We also provide the fire-chamber (encompassed by the said hollow
gills) with an inner valve or damper 15 of corresponding general contour
in plan to the stove, and this valve we suspend (about two feet above
the fire) from the top plate 11 by means of metallic rods 16 depending
therefrom.
We provide this valve for the purposes of checking the draught and of
retaining the heat, and preventing its too rapid escape by causing it to
pass into, and up, and along the interior hollows of the gills, and heat
the air in the exterior hollows thereof, and by preventing it passing
straight up the centic to the flue 12, as in stoves of the usual con-
struction.
17 represents the ash-pit door; 18, the firc-door; 19, the soot door;
and 20, the firc-bars.
Having now particularly described and ascertained the nature and
object of our said Invention, 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 con-
structing portable and fixed stoves with wrought or cast-iron vertical
corrugated, grooved, or hollow gills, in combination with the depending
valve or damper, so as to allow of an equal capability of expansion and
contraction, and in order to obtain a large heating surface occupying a
comparatively small space, substantially as in the manner and for the
purposes above described, and as illustrated on the accompanying Sheet
of Drawings.
In witness whercof, I, the said Richard Wainman Holden, on
behalf of the said William Truswell and myself, have hereunto
set my hand and scal, this Ninth day of February, in the year
of our Lord One thousand eight hundred and seventy-five.