IMPROVEMENTS IN GAS COOKING STOVES AND GRILLS
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by John Frederic Wright and George
Ernest Wright at the Office of the Commissioners of Patents on the
24th April 1883.
JOHN FREDERIC WRIGHT and GEORGE ERNEST WRIGHT both of Birmingham
in the County of Warwick Manufacturers and Co-partners IMPROVEMENTS IN
GAS COOKING STOVES AND GRILLS."
"
Our invention consists First of the following improvements in adjusting the
shelves in gas cooking stoves
The said shelves slide in horizontal grooves or on ledges at opposite sides of the
stove. We adjust the height of the said grooves or ledges and thereby vary the
height of the shelves in the following manner. On each side of the stove two or
more vertical flat bars are fixed parallel to and at a short distance from the said
sides. A series of holes is made in these flat bars and a series of slides work upon
each of the said bars the slides having at top hooks of a size and shape suitable for
engaging in the holes in the flat bars. The grooves or ledges in or on which the
shelves slide are secured by rivetting or otherwise to the said slides and by raising
the said slides to the required beight and causing their hooked tops to engage in
the holes in the bars the said grooves or ledges are fixed in their adjusted positions.
In order to prevent the accidental displacement of the said hooks we provide each
of the said bars with a series of sliding clips equal in number to the slides which
clips being dropped over the hooked tops of the slides fix the hooks in their places.
Our invention consists Secondly in fixing in the interior of the stove and at a
short distance from its top a horizontal plate or slab of brick or unglazed earthen-
ware. This plate or slab is in contact with that side of the stove at which the
flame enters but is not in contact with the opposite side so that there is a slot or
opening between the last described side and the edge of the slab through which slot
or opening the heated air escapes passing over the top of the slab and heating it as
well as the top of the stove.
Our invention consists Thirdly in making the pipe by which the gaseous
mixture of gas and air is introduced into the stove in the following manner.
Instead of employing the ordinary T piece by which the gaseous mixture is
introduced into the stove and divided and connecting the T piece by screwing or
otherwise with the part for supplying air and gas respectively we make the said

page_text: parts all in one piece by the casting process and instead of dividing the main
current into two currents by means of the cross head of a T piece situated at right
angles to the body of the T piece we divide the current by means of curved
branches. By these improvements the manufacture of the said parts is simplified
and the two currents into which the principal current. is divided are delivered
with greater steadiness into the stove than by the ordinary apparatus.
Our invention consists Fourthly in the following improvements in gas grills.
In order to expose the food being grilled to different degrees of heat as required
and to accomodate the grid to the thickness of the food being grilled we adopt the
following arrangement for fixing the grid of the grill at four different heights.
At each corner of the grid we fix a vertical cross piece one end of which projects
from the side of the grid to a greater extent than the other end. That part which
projects to a greater extent is forked at its end. When in using the grid the forks
are made to rest on the edge of the pan the grid is raised to its highest level.
When the forks rest on the bottom of the pan the grid is supported at a lower
level and by inverting the grid and resting the short projecting ends of the cross
piece on the bottom or on the edge of the pan the grid may be supported at two
other and lower levels. The grid is thus supported at pleasure at the required
distance from the jets of flame above it (by which flame saucepans or other vessels
are heated) and the food being grilled is thus exposed to a higher or lower
temperature.