Improvements in Cooking Ranges or Kitcheners.
Year: 1889

page_text: Date of Application, 9th Apr., 1889
Complete Specification Left, 9th Jan., 1890--Accepted, 15th Feb.,
1890
PROVISIONAL SPECIFICATION.
Improvements in Cooking Ranges or Kitcheners.
I, THOMAS JOHN CONSTANTINE of 61 Fleet Street, London, Manufacturer of the:
Treasure Cooking Range do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain detail improvements in Cooking Ranges or Kitcheners.
The first improvement consists in making a circulating boiler in three distinct parts,
two of such parts forming the side boxes or side cheeks of a fire basket, or a portion
of a fire basket, and the other a bridge connecting said cheeks or side boxes and
constituting, when bolted in position, a water 'circulating boiler, a pipe at the bottom
connecting the two side boxes for that purpose, if desired.
By this part of the invention, the smallest possible quantity of fire within the grate
is sufficient to keep water hot and in circulation.
+
The back box, or bridge has the usual pipes connected for supplying haths, hot
closets, or other apparatus with which such pipes are now used, the boxes constituting:
the boiler being kept charged with water. These boxes are readily put in place, or
removed for any cause and when disconnected, by removing the bolts, the lower or
side boxes, which are provided with screw plugs, can be easily cleansed from calcareous
and other deposit.
The second improvement relates to means for lifting the bottom grate bars and
temporarilly fixing them at the required height when a small fire is required and also
for fowering them to the desired depth in proportion to the amount of fire required.
For this purposo, I mount the bottom grate bars on a cradle, as described in my
previous Patent No. 5644 of 7th May 1885, and in order to fix the bottom grate at
the desired height, I form the centre bar of the front vertical, or curved bars with
notches or teeth on the inner face and I fit a balanced or weighted pawl on the front
end of the cradle, the weight being so arranged to engage in the teeth of the front
vertical bar to hold the cradle and bottom grate in the required position.
1
By this second arrangement, there are no projections in the front of the fire basket,
a poker, or other similar kitchen appliance only being necessary for raising or lowering
the bottom grate bars.
Dated this 9th day of Anril 1889
H. GARDNER,
166, Fleet Street, London, Agent for the said Thomas John Constantine.
COMPLETE SPECIFICATION.
Improvements in Cooking Ranges or Kitcheners.
·I, THOMAS JOHN CONSTANTINE of 61 Fleet Street, London, Manufacturer of the
"Treasure Cooking Range," 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 :-
This invention relates to certain detail improvements in Cooking Ranges or Kitcheners.
The first improvement is shown on sheet 1 of the annexed drawings and consists in
making a circulating boiler in three distinct parts, two of such parts forming the side
boxes or side cheeks of a fire basket, or a portion of a fire basket, and the other a
bridge connecting said cheeks or side boxes and constituting, when bolted in position, a
water circulating boiler, a pipe at the bottom connecting the two side boxes for that
if desired

page_text: Figures 1 and 2 of the annexed drawings show sectional elevation, and Figure 3 a
plan of a combination boiler for Cooking Ranges, or Kitcheners.
A, A¹, are two lower or side boxes; one at each side of the fire basket, and constituting
side cheeks to the same. B is an upper boiler straddling the back portion of the two
lower boilers A, A¹, as a bridge. The underneath sides of the lower boilers A, A¹,
have holes, also the upper portion of the upper boiler B, for the passage of bolts C, C,
which by their nuts D, D, can be put in firm connection.
Centrally at the back of the upper of the lower boilers, a hole is formed to correspond
to holes near the two ends, or bottom of the upper boiler B, so that the three
boilers A, A, and B are in communication through the holes E.
The water supply pipe F passes through the upper boiler B and to near the bottom
of one of the lower, or side boilers. In the drawing, Figures 1 and 2, I have shown
it within the boiler A' but this order may be reversed, the supply pipe may be passed
through the upper boiler B into the lower, or side boiler A, if desired.
Gis a pipe connecting the two lower boilers A, A', which ensures a circulation
while the water is hot, the pipe H being for supplying baths, hot closets, or other
apparatus with which the boiler is put in communication.
Instead of the bolts being passed through the lower and upper boilers, as indicated
at Figure 1, short bolts I, as at Figure 2, can be employed to fix the upper and lower
boilers in close connection by simply placing a bridge plate J across the hole E and
screwing the nut D down upon it, there being a ready means for fastening a short
bolt through the hand hole at K.
In the side cheek boilers A, A', where the fire has full play, I prefer to arrange
gills as part of the casting, the object being that as much heat of the fire as possible
should be utilized for warming the water.
M, M, are screw plugs which can be readily removed when the lower boilers have to
be cleansed from calcareous and other deposits.
Any arrangement can be adopted for protecting the pipe G (of which there may
be more than one) from the direct action of the fire, and also to lead the heat and
products of combustion upwards into contact with the lower part of the upper boiler
which has a number of projecting or cup tubes W to provide greater heating surface
so that as said upper boiler is above the level of the fire proper all the uprising heat
would impinge against it and the tubes W before passing into the flue. The cup
tubes W may vary in number and also in their diameter as indicated.
The second improvement relates to means for lifting the bottom grate bars and
temporarily fixing them at the required height, such as when a small fire is necessary,
and also for lowering them to the desired depth in proportion to the amount of fire,
such as for cooking purposes.
This improvement will be understood by reference to Figures 4 and 5 on sheet 2 of
the annexed drawings. I mount the bottom grate bars N on a cradle P, as described
in my previous Patent No. 5644 of 7th May 1885, and in order to fix the bottom grate
at the desired height, I form the centre bar Q of the front vertical, or curved bars
with notches or teeth R on the inner face, and I fit a balanced or weighted paul S on
the front end of the bottom grate N, the paul S being arranged to engage in the teeth
of the front vertical bar to hold the bottom grate N in the required position.
The weighted portion T of the paul S is provided, as seen at Figure 6, with a couple
of holes, or pockets U, U, for the insertion of a poker, or other similar kitchen
appliance to force the paul out of the tooth of the rack R to enable the bottom grate
to be lowered. The bottom grate is raised to the required height by lifting it up
from the hooked end V, the paul S taking into the tooth of the front centre bar Q
by the action of its balance weight.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :—
1. The combination of two lower boxes and an upper box in communication and
constituting a boiler for Cooking Ranges and Kitcheners, substantially as described
and as shown in the annexed drawings, Figures 1, 2, and 3.

page_text: 2. The construction of boilers for Cooking Ranges and Kitcheners, in which the
front portion of the lower boxes constitute the cheeks of the fire basket and the back
part for the attachment of an upper box, as described and as shown at sheet 1 of
the annexed drawings.
3. Providing the front of a loosely fitted bottom grate with a weighted paul, which
engages in teeth on the inner face of the central front vertical bar of the fire place,
when such bottom grate is in connection with a supporting cradle, as described with
reference to Figures 4 and 5 of the annexed drawings.
4. The manufacture of a weighted paul, indicated at Figure 6, and its attachment
to the under part of a bottom grate and its suspension therefrom, in such a manner
that it can, when the bottom grate is lifted, engage in teeth of the central front
vertical bar, as described.
H. GARDNER,
166, Fleet Street, London, Agent for the said T. J. Constantine.