Year: 1896

page_text: I, WILLIAM. JOHNSON, of Scalloway, Shetland, Builder do hereby declare
the nature of this invention to be as follows:-
My invention relates more particularly to cottage or bedroom fire grates, and
my object is to construct a grate in such a manner that it can be either used as an
open grate or converted into a cooking grate, at the same time, it is so formed that
the heat from the fire, which otherwise escapes up the chimney can be to some
considerable extent utilised for further warming the apartment and also for
cooking purposes.
The essential features of the invention consists, in providing the grate with a
movable plate termed the "cooking plate." This plate is placed over the fire at
a suitable height for cooking purposes and may be attached to the grate in any
suitable manner, so long as it can be, easily either put on, or removed, and when
required the outer end may rest on a projecting knob or equivalent or it may be
constructed to slide inwardly and outwardly. Said plate is arranged sufficiently
above the fire brick at back of grate, to allow a suitable space being formed for
an entrance to the flue, to which is attached a flue door and also a damper to
regulate the draught when the cooking plate is in use. Said cooking plate is
provided with the usual openings which are fitted with correspondingly shaped
covers.
A hinged plate is attached to the top front bar of the grate and when raised
connects with the underside of the cooking plate when the latter is in the
position for use. Said grate is provided with a draught plate or door arranged in
front of the fire.
In the upper part of the grate is the usual damper which is closed when the
cooking plate is in use but opened when the grate is used open, either with a
fire, or for ventilation.
The flue is. formed so that the smoke and heat from the fire can pass down the
back of the grate and underneath the hearth, thence forward, between suitably
shaped bricks arranged under the ashpan, from here the flue divides and is
constructed so that the smoke and heat can travel up both sides of the grate to the
chimney.
A metal plate may be placed over said bricks in lieu of the ashpan, and in lieu
of the bricks metal may be used, cast with the grate and the plate made removable
in order to facilitate the cleaning of the flues, the same may be made straight with
the front of the grate or may extend further out over the hearth, as required.
A suitably shaped oven or roaster may take the place of the ashpan for cooking
purposes.
Dated the 23rd day of January 1906
W. D. ROWLINGSON,
7 Quality Court, Chancery Lane, London, W.C.,
Agent for the Applicant.

page_text: I WILLIAM JOHNSON of Scalloway Shetland Builder 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 moře particularly to cottage and bedroom fire grates and
my object is to construct a grate in such a manner that it can either be used as an
open grate or converted into a cooking grate also to utilise the heat which other-
wise escapes up the chimney for further warming the apartment and for cooking
purposes and also to cure occasional smoking.
The grate is provided with a movable plate placed over the fire at a suitable
height for cooking purposes. This plate is called the "cooking plate" and has
the usual openings and covers for same and may be attached to the grate in any
suitable manner so long as it cau be easily either put on or removed as required
Said cooking plate rests on a projection or plate which also projects backwards, or
the wall, or masonry may project forwards to meet or lap over the edge of this
plate or projection.
This plate is arranged sufficiently above the fire brick at the back of the grate
to allow of a suitable space being formed for an entrance to the flue to which is
attached a flue door, or valve, and also a damper. The valve is held in different
positions so as to regulate the draught in the flues.
The damper is used for blowing or kindling the fire or for occasional smoking
and slides outwardly and inwardly or from side to side on the top of this plate over
an aperture in same.
The flue is formed so that the smoke and heat passes down the back of the grate
to the hearth, thence forwards between, or underneath suitably shaped bricks or
under cement concrete or the like suitable material arranged and secured under the
ash-pan or under a metal plate resting on such material. From here the flue
devides and is constructed so that the draught travels up both sides of the grate
to the chimney. In lieu of the bricks or equivalent, metal may be used and part
of same may be cast with the grate and may be either straight with the front of
the grate or may extend further out over the hearth as required.
In order to facilitate the cleaning of the flues and also to further bring out the
heat portions of the sides of the grate, the lower corners are made removable and
part of the side flues corresponding are made to open to get at the flues. A
suitably shaped oven or boiler or the like may take the place of the ash-pan for
cooking purposes.
A hinged plate is attached to top front bar of the grate and when raised connects
with the underside of the cooking plate when the latter is in use.
In the upper part of the grate is the usual damper which is closed when the
cooking plate is in use, and open when used as an open grate or for ventilation.
With reference to the drawings A (Fig. 1) is the cooking plate B hinged plate
in front, K flues extending over the hearth, D removable portions at sides E flues
going down behind the fire F side flues H (Fig. 5) represents the flues going down
to the hearth I same extending through the fender, and G entering the grate at
side flues, J damper at back of grate, L damper at top, M M horizontal or
projecting plate which connects with the building behind the grate, N partition
plates to bring the heat forwards, as shown by the arrows aud which move on
pivots R to allow the flues to be cleaned from the sides. Fig. 6 shows a modified
form for bringing the flues forward over the hearth under two bricks (0,0,) or the
like material. The arrows show the direction of the draught. Fig. 7 shows the

page_text: flues going either through the bricks or brought forward through the fender when
the flues are shut at one end by the fender shutting the draught off at one end
when shoved back. The direction of the draught through this fender is shown by
the larger arrows.
Fig. 1, is a perspective view of front of grate Fig. 2 is a section through centre
of same Fig. 3 is a plan through XX Fig. 4 a plan through Z Z.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The cover over the fire, and the horizontal plate on which it rests extending
backwards and engaging with the building.
2. The construction of the flues-viz. going down the back of the grate comming
forward over the hearth thence going up the sides of the grate.
3. The making of portions of the lower outer sides of the grate removable.
Dated this 17th day of October 1896.
WILLIAM JOHNSON,
Scalloway, Shetland.