Improvements in Apparatus for Grilling and Toasting by Means of Gas.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Grilling and Toasting by Means
of Gas.
We, THOMAS FLETCHER and ALFRED CLARE, both of Thynne Street War-
rington in the County of Lancaster, Manufacturers of Gas Apparatus, 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 apparatus for grilling and toasting by means of
its objects are to facilitate the operations and to strengthen the deflectors.
gas and
In proceeding according to these improvements, we employ two perforated metal
deflecting plates connected together and arranged one above the other preferably
in such a manner that the perforations of one plate are approximately vertical above
or below the solid parts of the other plate. A little space is left between the plates
so as to provide for the ventilation of the flame from below through the plates and
prevent conducting heat upwards.
We will more particularly describe our said invention with reference to the
accompanying drawings in which
Figure 1 is a plan of a griller and toaster as applied to a gas range; and
Figure 2 is a longitudinal section of Figure 1.
Figure 3 is a plan of the deflector plate on an enlarged scale; and
Figure 4 is a side view of Figure 3.
In each of the figures similar parts are denoted by similar letters of reference.
A is the upper and B is the lower perforated metal deflecting plate of which
there are as many pairs as may be required, arranged along or around the burners C
which are capable of producing flames below the plate B. The perforations may
be rustic or irregular as indicated in the drawings, or of any other suitable and
convenient form, but it is preferably arranged that the perforations in the two
super-imposed plates shall not be coincident, but that above each of the openings
in the lower plate there shall be a solid part of the upper plate, although this is not
absolutely essential.
It is preferred that the metal plates A and B shall be connected at a single point
only, such as D so as to allow for unequal expansion and contraction, and that the
connection shall be made by means of a screw or screws in order to permit either
of the plates to be removed and replaced if desired. At suitable parts of the
contiguous faces of the plates or of either of them, distance pieces may be cast as
shewn at E, to preserve a space between the plates, through which the products of
the flame may pass from the perforations in the lower plate to those in the
upper plate.
Although we have described and illustrated our deflectors as each consisting of
two perforated metal plates we do not limit ourselves to this number, but may
employ a third perforated metal plate arranged relatively to the upper plate A,
as A is to B. In ordinary cases however, two plates will be found to be quite
sufficient and this is the number we prefer to employ.
The upper plate also, or the upper plates if more than one is used, may be simply
laid upon the lower plate instead of being secured thereto, but by connecting them
together, they mutually support each other and reduce the liability to bend and
warp which now exists. On the other hand, the plates may be cast together, but
this is undesirable as they will be more liable to crack and warp because of the
unequal amounts of heat to which they are respectively subjected in work.
The hereinbefore described construction and arrangement of the deflector plates
of grilling and toasting apparatus produces a larger effective radiating surface, and

page_text: at the same time absorbs a larger amount of, heat from the flame, thus giving the
radiating surfaces a higher temperature. Since also the lower plate becomes much
hotter than the upper plate, the upper.or non-effective radiation is much less than
with a single plate deflector.
Having now particularly described and ascertained the nature of our said inven-
tion-and- in what manner the same. is to be. performed, we-declare. that what we
claim is,
In an apparatus for grilling and toasting by gas, a deflector plate having two or
more thicknesses constructed and arranged substantially as and for the purpose
hereinbefore described and as illustrated by the accompanying drawings.
Dated this 1st day of June A.D. 1891.
WILLIAM E. HEYS,
Agent for the Applicants.