Improvements in Fire-grates.
Year: 1889

page_text: Date of Application, 25th Nov., 1889
Complete Specification Left, 25th Aug., 1890-Accepted, 11th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Fire-grates.
I GEORGE EDMUND ARNOLD of Arnside Road, West Marina, in the Parish of
St. Leonard, in the County of Sussex Gentleman do hereby declare the nature of
this invention to be as follows:-
My invention relates to improvements in the construction of fire grates and stoves
of every description whether open or closed.
To my grates and stoves I form a moveable back made of iron or firebrick, or iron
lined with firebrick, or of any other suitable material and placed in the ordinary"
position at the back part of the grate.
Such moveable back I divide horizontally, preferably in two equal parts or halves,
and I connect the halves together by a hinge or joint provided with a spindle which
passes into the sides of the grate or stove, and is firmly attached to the lower half of
the said back.
To the said spindle I attach any suitable contrivance with connections by means of
which the lower portion of the said moveable back may be moved in the required
direction.
Behind the said moveable back I provide a circular cavity of such a size that when
the lower portion of the back is moved by the spindle it may freely travel through
the cavity.
I so arrange the said back and its connections that the lower half shall when moved.
backwards and upwards from its ordinary position at the back of the grate describe
two thirds of a revolution or thereabouts and that when it has travelled three fourths
of that space or thereabouts it shall impinge upon the upper half and carry it along
with it for the remainder of its course.
I provide suitable stops and arrangements so that upon the completion of this
operation the two portions of the back shall come together into a position about
midway between the upper part of the front bars of the grate and the back part of
the grate. An opening is thereby formed behind the moveable back through which
fuel can be thrown into the circular cavity, falling to the bottom.
The contrivance for moving the back is then reversed in its action by which means
the fuel is carried forward to the under part of the fire, and the two portions of the
back are so arranged and connected that when the action is reversed as aforesaid they
are moved into and remain in their first or ordinary position.
The front of the grate may be of any shape but I prefer to have the bars placed
vertically, with a radias similar to that of the circular cavity and in continuation
thereof.
I sometimes modify my said invention in the following manner-I fix the upper
part of the said back immoveably, leaving a space behind it (at the upper part of the
circular cavity) through which fuel can be passed, and so arrange the parts that the
lower portion only of the back shall be moved until it comes into position against
the upper part.
In this case I usually provide a hopper above and communicating with the circular
cavity, and so arranged that fuel can be readily passed through it.
I sometimes instead of forming a moveable back form a moveable side to my grates
with a circular cavity behind it, and with connections and arrangements adapted to
such modification of a similar or analagous character to those before described.
Dated this 23rd day of November 1889.

page_text: COMPLETE SPECIFICATION.
Improvements in Fire-grates.
GEORGE EDMUND ARNOLD Arnside Road St. Leonards-on-Sea Sussex Gentleman
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 improvements in the construction of fire grates and is
carried out as follows reference being had to the annexed drawing in which Fig. 1 & 2
are vertical sections of two different arrangements. To any ordinary grate or stove I
connect a moveable back a, a, made preferably of iron or steel or it may be constructed
of firebrick, or iron lined with firebrick and placed in the ordinary position at the back
part of the grate; such moveable back I divide horizontally preferably in two equal
halves, or parts and I connect the halves together by a hinge or joint provided with a
spindle, which passes into the sides of grate or stove and is firmly attached to the lower
half of the said back a. To the said spindle I attach any suitable contrivance with
connections by means of which the lower portion of the said moveable back may be
moved in the required direction. Behind the said moveable back I provide a circular
cavity c, of such size that when the lower portion of the back a, is moved by the
spindle it may pass freely through the cavity c. I also arrange the said back a, and
its connections that the lower half shall when moved backwards and upwards from its
normal position at the back of the grate describe 3rds of a revolution or there-
abouts it shall impinge upon the upper half and carry it along with it for the remainder
of its course. I provide suitable stops so that upon the completion of this operation the
two portions of the back shall come together into position about half way between the
upper part of the front bars of the grate and the back part of the grate; an opening
is thereby formed between the moveable back through which fuel can be thrown into
the circular cavity c, falling to the bottom. The contrivance for moving the back a,
is then reversed in its action by which means the fuel is carried forward to the under-
part of the fire d, and the two portions of the back a, a, are so arranged and connected
that when the action is reversed aforesaid they are moved into and remain in their
normal position. The front of the grate may be of any shape, but I prefer to have
the bars placed vertically with a curvature similar to that of the circular cavity c.
sometimes modify my said invention in the following manner. I fix the middle portion
of the said back a, (Figure 2,) immoveably leaving a space behind it (at the upper part
of the circular cavity c,) through which fuel can be passed and so arrange the parts
that the lower portion only of the back a, shall be moved until it comes in position
against the fixed part f. In this case if desired I may provide a hopper fixed above
and communicating with the circular cavity c, and so arrange it that the fuel can be
readily passed through it. I, sometimes instead of forming a moveable back form a
moveable side to my grates with a circular cavity behind it and with connections and
arrangements adapted to suit such modification of a similar character to those
before described.
Referring to the accompanying drawings
I
Figure 1 shows in side elevation and section my invention. a, a, movable plates
working on the pivot rod b secured to the sides of the grate, c circular cavity into
which fuel is fed, d portion of grate in which fuel is burnt e chimney.
Figure 2 shows a modification of my invention in which the part is fixed, 9 is a
flap to prevent the fuel getting between the movable flap and the fixed part of the
back Dotted lines show movable flaps open.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I claim is :—
1. The improved fire grate substantially as described and illustrated in the annexed
drawings for the purpose set forth.
2. The movable back consisting of the flaps a, a, or similar pieces working on the

page_text: pivot rod b, for the purpose of enabling the fuel to be supplied to the fire at the bottom
of the grate, in combination with the guard g.
3. In fire grates the method of feeding the bottom of the fire with fuel by the action
of the flaps a, a, in the cavity c.
Dated this 25th day of Angst 1800
E. EATON,
Agent for Applicant..