Year: 1888

page_text: I GEORGE WRIGHT of Chobham in the County of Surrey Artist do hereby declare
the nature of this invention to be as follows:-
To the Inner portion or front of a Register Stove Grate I affix a cast metal back.
-cast by preference in one piece reaching from the ground to the top of the front
or nearly so, the upper portion of this back, in connection with the projecting canopy
or upper portion of front forming the cast iron smoke flue, the whole, with the
addition of the bottom grating and front fire bars, forming what is commonly called
Interior but with the following improvements-
an
13
::
The back of the smoke flue from top of the fire box to about half its length upwards.
I incline forwards and downwards until it reaches to within about three inches from the
back of the canopy of front, thereby contracting the throat of the flue for the three-
fold purpose of 1-Quickening the draught-2 Deflecting the heat rays downwards
into the room
3 That it may become heated by the ascending flame and heated gases.
which impinge upon it and distribute the heat thus acquired from its waste surfaces
into the room.
.
In order to prevent this part of the back of flue from becoming too hot I corrugate
the front and cast ribs upon its back surfaces.
In order to provide ample room for sweeping the chimney, I incline the upper
portion of the back of smoke flue backwards, from the point where the throat is
most contracted to the top, and above this enlarged opening I place a draw out
damper.
In use this damper will not require drawing out more than one or two inches-
thereby confining and detaining the heated gases within the upper portion of the flue
and thereby a second time throttling the flue and preventing any down draught in a
bad chimney flue and increasing its heating power.
For convenience of sweeping the chimney I also make a suitable opening in the
face of front or canopy, above the point where the flue is contracted and below the
damper which opening is covered by a movable plate or panel dropping into a rebate
provided for its reception.

page_text: The Interior" thus formed I place in an open recess or casing formed by the
exterior or outer part to which an exterior back or outer casing is affixed, open at front
but closed in elsewhere, with the exception of an aperture in the top plate the exact
size of the opening of smoke flue and having brought the Interior into such a
position that the smoke flue stands exactly under this opening in the top plate, I
firmly secure it there screwing it to the underside of the top plate of outer casing
and cementing all the joints so that no warm air can pass through them into the
chimney.
In order to compel the air circulating between the interior and its outer casing to
pass in close proximity to the former and impinge upon its outer surfaces & thereby
become thoroughly warmed, before it passes into the room, I bend and incline the
back and sides of the latter in such a manner as exactly to follow the angles and
inclinations of the former, so that they shall stand equi-distant from each other at
every point, and there shall in no place he more than about an inch of space between
them, the outer edges of the sides of the Inner front standing clear of the outer casing
for the air warmed by the back of the Interior to pass freely into the room.
Dated this 11th day of Mov 1888

page_text: I GEORGE WRIGHT of Chobham in the County of Surrey Artist do hereby declare-
the nature of this invention and in what manner the same is to be performed, to.
he particularly described and ascertained in and by the following statement :-
I construct the Stove Grate, consisting of an Inner front, made by preference with
an overhanging canopy, which forms a portion of the smoke flue, and the complete.
back metal comprising the back & sides, cast by preference in one piece, fire box lined:
with fire brick, range and bottom grating the whole forming what is commonly
called in the Trade and known as an Interior," affixed within an outer casing, formed
by the outer front, side cheeks, and back, leaving a properly regulated space between
the Interior and the casing or recess within which it stands, for the air to circulate,
become warm by contact with the heated surfaces, and pass into the room.
The back of the Interior, the upper portion of which forms a part of the smoke
flue, from the top of the fire brick for about half its length upwards, I incline:
forwards and downwards, for the threefold purposes of,-
First. Quickening the draught. Secondly. Deflecting the heat rays from the fire
downwards into the room. Thirdly. Increasing the extent of the heat radiating
surfaces at the back, and putting the front in the best position for acquiring heat.
from the fire, and the ascending Hame and heated gases which impinge upon it.
In order to prevent this portion of the back metal, which is most exposed to the
direct action of the fire, from becoming over heated, I corrugate it and cast ribs of
metal projecting from the tops of the corrugations at back upon it, which conduct the
heat from this part and distribute it into the room.
In order to provide sufficient room for sweeping the chimney, I incline the upper
portion of the back of smoke flue, from the point where the throat is most contracted
to the top, backwards and downwards and above the opening thus enlarged I place a
draw out damper, for the purpose of regulating the draught and detaining the heated
gases within it when partially closed, and thereby increasing its heating power.
For convenience of sweeping the chimney, I make a suitable opening in the face
of the front or canopy, above the point where the flue is first contracted, up to the
underside of the damper, which opening is at other times closed by a movable plate
dropping into a rebate provided for its reception.
The Interior thus constructed and placed within its outer casing, which forms an
open recess for its reception, stands free and independent, but secured to it by screws
to keep it in position, and cemented at the joint where the smoke passes from the flue
through the top of the outer casing into the chimney, so that no portion of the warmed
air can escape out of this recess into the chimney.
In order to compel the air circulating between the back of the Interior and its outer
casing, to impinge upon, and pass in close proximity to, the heated surfaces of the
former, I bend and incline the back of the latter so as to follow the bendings and
inclinations of the former, in order that they may stand nearly equidistant from each

page_text: other, leaving about an inch of space between them, I also leave a similar space
between the outer edges of the front of Interior, and its exterior casing, at each side,
so that the warmed air may pass out freely into the room.
In this manner, I am enabled to utilize, not only the heat radiated from the front
of the fire of the stove grate, but also that proceeding from the back and every
portion of its external surfaces, and to improve the upward current, and check any
tendency to down draught which may exist in the smoke flue.
The Interior is so arranged that by removal of its connecting screws, it can at any
time be withdrawn from its casing, for repairs or any other purpose, without the
trouble and annoyance of unsetting the stove.
The accompanying drawings shew the manner in which the foregoing results are
obtained-
Fig. 1. is the front elevation of a Register Stove Grate constructed according to
my Invention.
Fig. 2. is a longitudinal section of same on line P. Q.
Fig. 3. is a plan of the same.
O. is the Exterior or outer casing.
1. the Interior, or inner Front and back metal complete.
A is the angular back of the Interior forming back and sides of smoke flue.
Movable panel in Canopy or front of Interior.
M
"
D. Draw out damper.
وو
دو
C Cemented joint of smoke flue.
S.
دو
"
72
"
Screws connecting Interior with Exterior.
Corrugations and ribs cast on part of back most exposed to fire.
Fire brick lining.
Front bars of range.
B Open spaces
"2
between Interior and Exterior.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, declare that what I
claim is :
First. The method of construction of a Register Stove Grate of which the Interior
stands free within an open outer casing, to which it is connected at the top only,
where the smoke passes into the chimney,. and by screws to keep it in position,
substantially as hereinbefore described.
Secondly. The construction of the Interior, with back of smoke flue inclining at
reverse angles witli a practicable opening in front or canopy, and with a draw out
damper above.
Thirdly. The construction of the outer casing, following the angles and inclinations
of the Interior to which it is connected, leaving a regulated.space between them.
The arrangement and combination of the whole, as set forth and explained in the
foregoing description, and by the accompanying drawings.
Dated this 21st day of January 1889.