IMPROVEMENTS IN CLOSE STOVES
Year: 1877

page_text: LETTERS PATENT to Charles Portway, of Halstead, in the County of Essex,
Ironmonger, for the Invention of "IMPROVEMENTS IN CLOSE STOVES."
PROVISIONAL SPECIFICATION left by the said Charles Portway at the
Office of the Commissioners of Patents on the 23rd October 1877.
CHARLES PORTWAY, of Halstead, in the County of Essex, Ironmonger. "IMPROVE-
MENTS IN CLOSE STOVES."
The object of the Invention is to secure efficiency in the heating power, with
economy in the consumption of the fuel employed in close stoves, together with
simplicity of construction and facility in use. For this purpose the body of the stove
is lined entirely with a casing of fire-clay or pottery ware, which also forms a solid
bottom or hearth on which the coke or other fuel employed rests. The opening for
raking or clearing the fuel is on a level with this hearth. This opening is capable
of being securely closed by a close-fitting cover or sliding door when in use. This
door is capable of being adjusted to admit more or less air to regulate the extent
of combustion and consequent heat emitted, as required.
The opening for the supply of the fuel to be consumed is at one side or part of
the upper portion of the stove, above the lining, and this opening is also capable of
being closed by a closely-fitting cover. The outlet for the smoke and products of
combustion is also at this top part of the stove, and by a horizontal passage
immediately opposite the fuel opening to conduct the smoke and products to any
suitable flue. By this arrangement any sulphurous or other deleterious gases
emitted from the fuel, and which might have a tendency to escape into the apart-
ment being heated by such stove on the opening of the feed door, will be at once
drawn or forced to the chimney, and an efficient, economical, slow combustion
air-heating stove is obtained.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles Portway in the Great Seal. Patent Office on the 18th April
1878.
CHARLES PORTWAY, of Halstead, in the County of Essex, Ironmonger.
MENTS IN CLOSE STOVES."
"IMPROVE-
The object of the Invention is to secure efficiency in the heating power, with
economy in the consumption of the fuel employed in close stoves, together with
simplicity of construction and facility in use.
But that the Invention may be the better understood, I will, by the aid of the
accompanying Drawing, proceed to describe the same.
Figure 1 shews a vertical section of a stove arranged according to my Invention;
Figure 2 shews an external side view of the same; Figure 3 represents a plan view
or upper side view; and Figure 4, a horizontal section taken through the line 1, 1,
Figure 1.
a, a, is the body of the stove, which is lined entirely around the side or vertical
surface of it with fire-clay or pottery ware b, except at the part b¹, which indicates
the passage for lighting and also for clearing out the ash. The fire-clay or pottery
ware also forms a solid bottom or hearth c on which the coke or other fuel employed
rests. The opening 6' for lighting and for raking or clearing the fuel is on a level
with this bottom or hearth c. This opening b' is however capable of being securely
closed by a close-fitting cover or sliding door d when in use, or by sliding it sideways
on its bearing surfaces d', d¹. An opening is capable of being left in width,
adjustable at pleasure, to admit more or less air to the ignited fuel in the stove,
to regulate the extent or speed of combustion, and consequent degree of heat
emitted.
e is the opening for the supply to this stove of the fuel to be consumed, and it
will be seen that it is at one side or part of the upper portion of the stove, above the
lining b, and that this opening e is also capable of being closed by a closely-fitting
cover; g is the outlet for conducting away the smoke and products of combustion
in a horizontal direction at the top part of the stove and immediately opposite the
fuel opening, so as to conduct the smoke and products of combustion direct to any
suitable flue. By this arrangement any sulphurous or other deleterious gases emitted
from the fuel, and which might have a tendency to escape into the apartment being
heated by such stove on the opening of the feed door, will be at once drawn or
forced to the chimney, and an efficient economical slow combustion air-heating
stove is obtained.
Having thus described my Invention and means which I adopt in carrying the
same into effect, I would have it understood that what I claim is the arranging parts
of slow combustion close stoves, with fire-brick or pottery hearths, and linings and
passages for the supply of fuel and clearing of the ash and escape of products of
combustion, as described.
In witness whereof, I, the said Charles Portway, have hereunto set my hand
and seal, this Seventeenth day of April, in the year of our Lord One
thousand eight hundred and seventy-eight.