Apparatus Connected therewith.
Year: 1885

page_text: Apparatus Connected therewith.
I, WILLIAM BRAITHWAITE of 21, and 22, Swinegate, Leeds, in the County of
York, Plumber and Hot-water Engineer, do hereby declare the nature of said
invention for IMPROVEMENTS IN THE CONSTRUCTION OF KITCHEN BOILERS AND
IN APPARATUS CONNECTED THEREWITH, to be as follows:-
My improvements in the construction of kitchen boilers and in apparatus
connected therewith, consist in forming an internal part or cavity, open to the
underside thereof, and a narrow neck or slit in continuation of such internal part
open to the top of the boiler, the above parts constituting an internal shell and
thus forming a water space between them and the outer shell of the boiler.
In some cases I make the wider part of the said internal shell open to the ends
of the boiler, which may, on setting the same, be filled in with brickwork or other
suitable material as far as the narrow neck.
Through the said narrow neck I introduce a suitable midfeather or partition,
provided with an opening near or close to the crown of the inner shell so as to
form a communication between the two interior spaces of the internal shell as now
divided by the said midfeather or partition.
This midfeather or partition reaches to the bottom of the usual under flue of the
boiler and thus forms a passage or flue for the heated gases from the kitchen fire,
first under the front part of the boiler, then up one side of the partition, and
through the opening therein, returning down the other side thereof, then under the
back part of the boiler and upwards behind the same to the chimney, thus forming
a larger heating surface than hertofore obtains in kitchen boilers as usually
constructed, and produces a greater quantity of hot water in a given time than can
be produced by a boiler having only a bottom and a back flue.
Provision is made for the easy removal of the midfeather or partition when the
flue requires to be cleaned.
If preferred the midfeather or partition may be otherwise introduced than at the
top of the boiler.

page_text: Apparatus Connected therewith.
I, WILLIAM BRAITHWAITE, of 21 and 22, Swinegate, Leeds, in the County of
York, Plumber and Hot-water Engineer, 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 and by the following statement:―
My improvements in the construction of kitchen boilers and in apparatus
connected therewith consist in forming an internal part, cavity, or shell, open at
the underside thereof and with a narrow neck or slit in continuation of such
internal part, which is open externally at the top of the boiler and joined thereto,
a water space is thus formed around the internal part and within the external
shell of the boiler. In some cases I make the wide part of the said internal shell
open to the ends of the boiler, which may on setting the same be filled in with
brickwork or other suitable material up to the beforenamed narrow neck. Through
the said narrow neck or slit I introduce a midfeather or partition provided with an
opening near or close to the crown of the inner shell. The interior of the inner
shell being now divided by the interposition of the said midfeather forms an
ascending and descending flue. The midfeather reaches to the bottom of the
underflue of the boiler, the flame or heated gases from the kitchen fire passes or
pass firstly under the front part of the boiler, then up one side of the midfeather,
through the opening therein, returning down the other side thereof, then under
the back part of the boiler, and upwards behind the same to the chimney, thus
forming a greater heating surface than heretofore obtains in kitchen boilers as
usually constructed and producing a greater quantity of hot water in a given time
than can be produced by a boiler having only a bottom and a back flue. The mid-
feather is capable of being easily removed when the flue requires to be cleaned.
If preferred the midfeather or partition may be introduced otherwise than at
the top of the boiler, as for instance, it may be made to pass into the internal shell
at one of the ends of the boiler when such ends are made open as previously
referred to. In the accompanying drawings similar letters of reference indicate
like parts wherever they occur, Fig. 1, is a front elevation, Fig. 2 is a vertical
sectional elevation on the line 1.-2. Fig. 1. and Fig. 3, is a plan of a kitchen-
boiler according to my invention. Fig. 4, is a detached front view, and Fig. 5, an
edge view of the midfeather.-a, is the exterior shell of a kitchen boiler, b, the
interior shell, whereof 6, is the narrow neck or slit through which the mid-
feather c, is introduced, c¹ is the opening in the midfeather which forms the
communication between one side and the other thereof, d, is a fire grate from
which pass the heated gases or flame into the under flue e, up the ascending flue f,
through the opening c¹, in the midfeather, down the descending Blue g, then under
the back lagging of the boiler at h, and up the ascending flue i, behind the boiler
to the chimney.
Fig. 6, is a front elevation, Fig. 7, a plan, and Fig. 8, an end elevation of a
boiler with its internal shell b, open at the bottom and at one end (both ends may

page_text: be open if preferred, and closed with. brickwork or other suitable material as
previously referred to). The midfeather c, in this case is introduced sideways into
the open end of the internal shell, and is without an opening c¹, as in the
midfeather previously described, the crown of the internal shell being higher than
the upper edge of the midfeather, an opening equivalent to c¹ is thus formed.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what
I claim is
'
1. In a kitchen boiler having an inner and an outer shell such as hereinabove
described providing a narrow neck or slit such as b₁, to admit of the introduction
of a midfeather substantially as and for the purpose set forth with reference to and
shewn in the drawings.
2. Apparatus comprising a kitchen boiler with inner and outer shells, neck or
slit b¹, and perforated midfeather c constructed, arranged and operating as herein-
above described and shewn in Figs. 1 to 5, of the drawings.
3. The modified arrangement of apparatus described with reference to and
illustrated in Figs. 6 to 8, of the drawings.
Witness,
THO E. CRAVEN, C.E.,
Fell. Inst. Patent Agents,
24, Victoria Chambers, Leeds.
WILLIAM BRAITHWAITE