Year: 1886

page_text: Date of Application, 18th Oct., 1886
Complete Left, 18th June, 1887
Complete Accepted, 22nd July, 1887.
We CHARLES PORTWAY of the firm of Charles Portway & Son of the Tortoise
Stove Works, and High Street Halstead in the County of Essex, Engineer, and
ALFRED WILLIAM KIBBLE of Trinity Street Halstead aforesaid, Foreman in the employ
of the said firm, do hereby declare the nature of this invention to be as follows:-
The object of our invention is to provide an improved stove adapted to promote
slow combustion economy of fuel development of great and well applied heating power
with simplicity of construction and use.
For a stove for heating water we construct our fireplace surrounded by a water
jacket and inlet and outlet pipes, under plate or bars and stoking and ventilating hole
and door or similar arrangement. Towards the upper edge of (say) the cylindrical
double water jacket is slid on and secured a flanged corresponding projection of a
grated chamber forming an air space communicating by the gratings with the
combustion chamber and with the flue at (conveniently) the rear-the inner or
grating surface of this air chamber corresponding in contour to the inner surface of
the boiler and the outer surface of the air chamber corresponding to outer surface of
the boiler where its flange passes over it, swelling out above. Socketted removably
into the air chamber is an elongated coned fuel holding chamber with removeable
cover for supply of fresh fuel.
The inner and outer walls forming the grated air chamber are flanged and separably
connected by preference-for facility of access to remove any accumulation of dust
or soot.
For heating stove where water boiler is not desired we replace the double jacket by
a fireclay wall encircled by iron or other retaining sheet, or band, or bands or
equivalent construction.
In some cases the fire door may be removed and an open fire place arranged.

page_text: COMPLETE SPECIFICATION.
Improvements in Stoves for Heating Purposes.
We CHARLES PORTWAY of the firm of Charles Portway & Son of the Tortoise
Stove Works, and High Street Halstead in the County of Essex, Engineer, and
ALFRED WILLIAM KIBBLE of Trinity Street Halstead aforesaid Foreman in the
employ of the said firm, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in 5
and by the following statement:-
The object of our Invention is to provide an improved stove adapted to promote
slow combustion economy of fuel development of great and well applied heating
power with simplicity of construction and use.
For a stove for heating water we construct our fireplace surrounded by a water 1
jacket and inlet and outlet pipes, under-plate or bars and stoking and ventilating hole
and door or similar arrangement. Towards the upper edge of (say) the cylindrical
double water jacket is slid on and secured a flanged corresponding projection of a
grated chamber forming an air space communicating by the gratings with the
combustion chamber and with the flue at (conveniently) the rear-the inner or
grating-surface of this air chamber corresponding in contour to the inner surface of
the boiler and the outer surface of the air chamber corresponding to the outer surface
of the boiler where its flange passes over it, swelling out above. Socketted removably
into the air chamber is an elongated coned fuel holding chamber with removable cover
for supply of fresh fuel.
The inner and outer walls forming the grated air chamber are flanged and separably
connected by preference for facility of access to remove any accumulation of dust
or soot.
2
For heating stove where water boiler is not desired we replace the double jacket
by a fire clay wall encircled by iron or other retaining sheet, or band, or bands or 2
equivalent construction.
In some cases the fire door may be removed and an open fire place arranged.

page_text: lip or inwardly projecting flange 62 resting on the top a². Into this annular air
chamber part bis dropped the socketted end of an elongated fuel containing chamber c
the lower end or annular curtain c¹ of which corresponds about to the inner edge
of the part of the water jacket a, a² thus completing the air chamber a¹ to which space a¹
the holes a give access for the products of combustion which thence pass by the
passage at to the flue and away. The dotted lines a shew an alternative form of
horizontal flue outlet.
The annular piece brests securely on the top of the double jacket by its weight and
the coned chamber c is locked to the part 6 by the lugs cac being passed into
holes 6 6 in the flange until the shoulder or ring et rests on the top 6 and then by a
partial revolution of the part c the lugs are rotated and pass along the inclined
ways 66 formed in the thickness of the annular part b drawing the parts be closely
together and making a tight joint.
The upper end of the fuel chamber c may be closed by any ordinary or convenient
lid or cover such an one being indicated in the view of the entire stove shewn in
perspective by Figure 6 and drawn to a smaller scale.
Having now particularly described and ascertained the nature of our said Invention,
and in what manner the same is to be performed, we declare that what we claim is :-
In stoves for heating purposes, the construction or arrangement and use of parts
as a, a, b, c, adapted to be connected for use so as to provide an air space and
disconnected for cleaning or other purpose in manner as set forth.
Dated 3. 17th d...
T1007
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicants.
Dnted th 17h
day of
1007
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicants.