Improvements in Hot-plate Grids for Gas Cooking Apparatus.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Hot-plate Grids for Gas Cooking Apparatus.
We, WILLIAM RUSSELL of The Scotia Foundry, Pendleton, in the County of
Lancaster, Ironfounder, ALFRED CLARE of Thyune Street Warrington in the
County of Lancaster, and FLETCHER RUSSELL & Co. LIMITED, also of Thynne
Street, Warrington, Manufacturers of Gas Apparatus, do hereby declare the nature
of this invention to be as follows:-
This invention relates to the hot-plate grids of gas cooking apparatus and it's
object is to provide means for holding the bars firmly in place and yet enable them
to be readily removed and replaced or substituted when required.
At each end of each bar we form any suitable kind of projection, lugs or the
like, adapted to fit into corresponding recesses formed in the hot-plate. At one
end, preferably the back, there is formed below each recess on the hot-plate, a
flange or corresponding projecting part and on the similar end of each bar there is
formed a projection or groove capable of engaging the flange on the hot plate. At
the opposite end of each bar there is a holding down device which may be
variously constructed. Thus, the device may consist simply of a screwed pin cast
in the bar and projecting perpendicularly downwards so as to pass through a hole
in the hot plate, below which the bar is secured by means of a screwed nut fitting
upon the screwed pin. In substitution for the screwed pin and nut, each bar may
have cast upon it a lug with an oval or other suitable hole formed through it at
right angles to the bar. This lug passes through an opening in the hot plate,
below which all the bars may be secured by a wire or rod passing through all the
holes. If the holes in the lugs are made oval, the holding down wire may be turned
down at each end, and there may be projections cast on the under side of the hot
plate between some of the bars, of such dimensions that, when the holding wire is
in place, these projections will just come into contact with it and prevent
the lifting of the bars unless the wire be previously withdrawn. The with
drawal of the wire, when it is used with oval holes and one or both ends are
turned down, may be effected by turning it so that the turned down end
alternately passes through a hole upwards, and below one of the projections
downwards.
Instead of the flange at the back end of the hot plate for holding down that end
of the bar, there may be constructed an opening or other equivalent device for
engaging with a fixed part of the bar in a similar manner.
Dated this 9th day of January A.D 1895
WILLIAM E. HEYS,
Agent for the Applicants.

page_text: Improvements in Hot-plate Grids for Gas Cooking Apparatus.
We, WILLIAM RUSSELL of The Scotia Foundry Pendleton, in the County of
Lancaster, Ironfounder, ALFRED CLARE of Thynne Street Warrington in the
County of Lancaster,and FLETCHER RUSSELL & Co. LIMITED also of Thynne
Street, Warrington, 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 the hot-plate grids of gas cooking apparatus and its
object is to provide means for holding the bars firmly in place and yet enable them
to be readily removed and replaced or substituted when required.
At each end of each har we form any suitable kind of projection, lug, or the like
adapted to fit into corresponding recesses formed in the hot-plate or to otherwise
similarly engage therewith. At one end, preferably the back, there is formed,
below each recess on the hot-plate, a flange or corresponding projecting part, and
on the corresponding end of each bar is formed a projection or groove capable of
engaging the flange on the hot plate. At the opposite end of each bar there is a
holding down device which may be variously constructed but which consists
preferably of a pin or projection which passes perpendicularly downwards through
a hole in the hot-plate and is secured by means of pins, cotters, nuts or the like.
In order that our invention may be the more readily understood we have hereto
appended a sheet of drawings to which we make reference hereinafter.
Figure 1 illustrates in plan part of a hot-plate with the detachable bars in place.
Figure 2 represents a section along the line - Figure 1, the bar being shewn
in elevation.
A is a hot plate grid frame which may be of any desired or suitable construction
and the bars of which B are separately removable. Each end of each bar is
provided with a lug, projection or the like C, and C¹, and corresponding recesses
are formed in two opposite sides of the hot plate frame into which the ends of the
bars are placed. In the form illustrated in the drawings the bars are shewn with
approximately hemi-spherical ends engaging with similarly shaped recesses in the
hot-plate frame but any other suitable or desired form may be employed. Beneath
the recesses on one side of the frame is or are formed a projecting part or parts
which may conveniently be a flange or rib D. Those ends of the bars which fit
upon that side of the frame are furnished with projections E which engage with the
flange or rib D and prevent vertical movement of that end of each bar when the
bar is secured in place. On the other end C₁ of each bar is a perforated
extension F which passes through a hole in the frame A and is secured by a wire
or rod G which passes through the perforations beneath the frame A and holds the
bars in place. If desired, however, the extensions F may consist of pins, screws or
the like provided with cotters or nuts.
To remove one of the bars from the grid the holding down device is released,
that end of the bar is raised, and the other end is drawn from engagement with the
flange D. To replace the bar or to put one in place the end with the projection E
is first fitted so as to engage with the flange D and the other end is lowered into
place and secured as hereinbefore described.
Instead of the flange on one side of the plate for holding down those ends of the
bars, there may be constructed an opening or other equivalent device for engaging
with a fixed part of the bar in a similar manner.

page_text: 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 :-
1. In gas cooking apparatus, a hot plate grid having detachable bars, constructed
and arranged substantially as and for the purpose herein before described and as
illustrated by the accompanying drawings.
2. Detachable bars for the hot plate grids of gas cooking apparatus, constructed
and arranged substantially as hereinbefore described and as illustrated by the
accompanying drawings.
Dated this 9th day of October A.D. 1895.
W. E. HEYS & SON,
Agents for the Applicants.