Improvements in Fire-grates.
Year: 1889

page_text: Date of Application, 18th Apr., 1889
Complete Specification Left, 20th Jan., 1890-Accepted, 22nd Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Fire-grates.
JOSEPH FARRAR Wool Buyer Moorside Cranmer Road Forest Gate, Essex, do
hereby declare the nature of this invention to be as follows:-
This invention, as will be seen from the drawings, consists of a fire-grate with
vertical fire-bars divided so as to make the lower part a moveable receptacle for fuel.
When the fire needs replenishing, the "Multiple Poker" is introduced at the bottom
of the grate, and the red fire is lifted: the M. Poker being kept at the proper
distance from the fire-back by the side-pieces until the rests are reached upon which
the cross-bar is placed, the ends sliding into a groove at the back. The "drawer
grate" is then pulled forward, filled with fuel, and shoved back into its place, when
the M. Poker is withdrawn and the red fire remains on top. If preferred, the back
and sides of top part of grate could be made a few inches higher, and the front fitted
with hinged, perforated, iron or steel plates (see fig. 5) to be dropped on the top-bar
just before lifting the fire: thus allowing of an increase in the size of the fire when-
ever it may be thought necessary. These plates when not in use would lie back in
recesses in the sides of the fire-place in the position shown in fig. 5. Fig. 4
represents a plate for closing up the ash-place as in slow-combustion fire-grates.
" or fire-
Fig. 2 shows section of "drawer grate." Fig. 3 is the "Multiple Poker
lifter, which can be made in various forms (a few of which are shown).
suggested that only the upper or fixed part of grate be lined with fire-brick, the fire-
brick resting on ledges: but the moveable part could of course also be lined if
desired.
It is
1000
COMPLETE SPECIFICATION.
Improvements in Fire-grates.
I JOSEPH FARRAR of Moorside Cranmer Road, Forest Gate, in the County of Essex,
Wool Buyer, 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 for improvements in fire grates has for its object to obtain a more
perfect combustion of the fuel employed than is the case with fire grates as ordinarily
constructed, and thereby to economise its consumption and at the same time to
prevent the escape of smoke, and consists essentially of an arrangement and apparatus
for feeding the fuel to the lower part of a grate constructed with vertical firebars, and
divided by a horizontal plane to enable the lower part to be charged with the requisite
fuel.
In the accompanying two sheets of illustrative drawings, Fig. 1 represents a
vertical section of a firegrate in its ordinary working condition with the sliding bottom
or drawer grate closed, constructed according to this invention.
Fig. 2 is a front elevation, and Fig. 3 is an horizontal section of the same at a
plane A B fig. 1.
Fig. 4 is a vertical section similar to Fig. 1 but shewing the bottom or drawer
grate withdrawn for the insertion of fuel.
Fig. 5 is a plan of a portable gridiron for the purpose of raising the burning fuel
preparatory to the withdrawal of the drawer grate for the insertion of fresh fuel.

page_text: The fire grate comprises two parts a b the upper part a having vertical fire bars c
strengthened by the crossbar d and lined with a refractory material such as fire clay e;
the lower part or drawer grate b is also provided with vertical fire bars f corresponding
with the vertical bars c and extending to the back of the grate thus forming the
grid g of the drawer grate b, the bars f being rigidly joined by the bar and the
sides of the grate being lined with refractory material i all as clearly shewn. The
drawer grate 6 is free to slide upon ledges j and is provided with handles terminating
in foot rollers or castors m for supporting the front of the grate when it is withdrawn.
Beneath the drawer grate are two brackets n joined by a pin o which when the grate
is withdrawn strikes the back plate p and acts as a stop to prevent the further
withdrawal of the said grate. When however it is required to entirely remove the
grate b the pin o is removed by hand and the plate p is thereby allowed to pass.
On the upper part of the grate are two lugs q formed with recesses r into which the
ends of the portable grid t fit and by which it is prevented from turning when
inserted as will be clearly seen. A tray u is placed beneath the grate to receive the
ashes therefrom.
The mode of operating the apparatus is as follows:-
The portable gridt is first inserted between the bars of the drawer grate and beneath
the burning fuel as in Fig. 1; it is then elevated into the position shewn in fig. 4 and
secured in the lugs q the burning fuel being raised with it; the drawer grate is then
withdrawn and the fresh fuel deposited in it, the grate being returned to its normal
position and the portable gridiron removed when the burning fuel falls upon the fresh
and combustion ensues.
Figs. 6 and 7 are a vertical section and front elevation respectively of a fire grate
showing vertical sliding bars operated by rack and pinion gear for carrying the
portable gridiron.
Two bars arranged one on each side of the fire grate and provided with grooves to
for holding the ends of the portable gridiron t are free to slide in a vertical direction
and are operated by means of the pinions x gearing with the racks y and are retained
in any required position by the ratchet and pawl z z¹ all as clearly shewn.
In a modification of the above-described grate instead of forming the vertical and
horizontal bars of the bottom grate in one piece I arrange the front bars to form a
separate door to enable the fresh fuel to be fed without withdrawing the grate for that
purpose.
In some cases I entirely enclose the top of the grate with a crown or dome of firebrick
or other refractory material provided with an outlet into the chimney for the exit of
the gaseous products of combustion.
Instead of the lugs q I may arrange angle iron guide pieces on the front of the
grate for the ends of the portable gridiron to slide in and having in each a latch or
catch lever pushed aside by the upward passage of the ends of the gridiron but which
fall as soon as free and form a rest for the said gridiron, the guides serving at the
same time to prevent the turning of the gridiron.
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. A fire grate constructed with vertical bars divided horizontally to form an upper
and lower grate in combination with a portable gridiron, so that the burning fuel can
be raised in the grate by means of the said gridiron shaped to fit and capable of being
inserted in the bottom of the said grate and raised together with the fuel above the
lower grate, so that the lower grate can be charged with fresh fuel and the gridiron
removed to allow the hot fuel to fall and come into close contact with the fresh fuel
substantially as and for the purpose specified.
2. The apparatus for raising the portable gridiron consisting of the vertical sliding
bars operated by rack and pinion gear and maintained in any required position by

page_text: means of a ratchet and pawl substantially as described in the foregoing specification
and shown in Figs. 6 and 7 of the drawings.
3. The arrangement and construction of fire grates substantially as described with
reference to figs. 1 to 5 of the drawings inclusive.
Dated this 18th day of January 1890″
WHEATLEY & MACKENZIE,
40, Chancery Lane, W.C., Agents.