Year: 1886

page_text: Date of Application, 6th Apr., 1886.
Complete Left, 6th Jan., 1887.
Complete Accepted, 8th Feb., 1887
I, CHARLES JAMES BELLAMY, of 6 Wetherby Terrace, Earl's Court, in the County
of Middlesex; Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention is mainly designed for use in connection with open-hearth fire-grates
for domestic purposes; its object being to enable a fresh charge of coal or other fuel
to be placed behind and to some extent underneath the live fuel, and thereby to obtain
improved combustion and more perfect consumption of smoke.
a
A fire-grate constructed according to this invention is so arranged that the front,
sides and bottom thereof, together with their contents, may be moved bodily forwards
sufficient distance to permit of a charge of fresh fuel being introduced to the space
thus rendered vacant between the incandescent fuel and the fixed back of the grate.
By a reverse movement, the grate is then pushed back into its former position, the live
fuel being thereby partially heaped over the fresh fuel.
One mode of constructing a fire-grate adapted for effecting the objects above
described consists in forming the front, sides and bottom of the grate as one body and
mounting the same on a pivot, preferably located at some little distance beneath the
level of the grate-bottom and approximately in the vertical plane of the grate-front.
The bars forming the bottom of the grate are prolonged backwards through slots or
apertures in the fixed grate-back, and are by preference curved downwards. Between
the grate-back and the wall in which the apparatus is set, there is provided a space
sufficient for the reception of the prolongations alluded to; the function of these
portions of the bottom bars being to support the fresh fuel whilst the grate is in its
forward or charging position. In a similar manner and for confining the fuel laterally,
each side of the grate is, according to one mode of construction, extended backwards,
these extensions passing through slots in the fixed grate-back.
I prefer to make the front bars flat and to incline their outer edges upwards, so as
the better to support the fuel when the grate is rocked forward to the charging
position. The sides of the grate may be parallel or splayed.

page_text: When it is desired to replenish the fire, the movable parts of the grate, together
with the contained incandescent fuel, are pulled forward and a fresh charge of fuel is
deposited against the grate-back and upon the supplementary portions of the bottom
bars which are in this position exposed. The grate is then restored to its normal
position, during which operation the live fuel is forced back against and partially
heaped upon the fresh fuel.
A fire-grate constructed according to this invention may be pivotted otherwise than
as hereinbefore described. Or it may be mounted on friction rollers and arranged
to slide to and fro on a plane or curved surface.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction and Use of Fire-grates.
I, CHARLES JAMES BELLAMY, of 6 Wetherby Terrace, Earl's Court, in the County
of Middlesex, Civil Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :-
This invention is mainly designed for use in connection with open hearth fire-grates
for domestic purposes; its object being to enable a fresh charge of coal or other fuel
to be placed behind and to some extent underneath the live fuel, and thereby to obtain
improved combustion and more perfect consumption of smoke.
A fire-grate constructed according to this invention is so arranged that the front,
sides and bottom thereof, together with their contents, may be moved bodily forwards
a sufficient distance to permit of a charge of fresh fuel being introduced to the space
thus rendered yacant between the incandescent fuel and the fixed back of the grate.
By a reverse movement, the grate is then pushed back into its former position, the
live fuel being thereby partially heaped over the fresh fuel.
And in order that my invention and the mode of carrying it into effect may be
fully understood, I will proceed to describe the same with the aid of the accompanying
drawings; whereof Figure 1 is a front elevation, Figure 2 a plan, Figure 3 a vertical
section on the line A A (Figure 1), and Figure 4 a vertical section, on the line A' A'
(Figure 2), of a fire-grate having splayed sides, and illustrative of one mode in which
my improvements may be applied. In these four figures, the grate is represented in
its normal or closed position. Figure 5 is a vertical section and Figure 6 a horizontal
section, on the bent line B B B (Figure 5), of the same grate in its extended or open

page_text: is a
position. a is the outer fixed casing of the grate, which, if extended upwards, would
lead to the flue; but the entrance to the flue is not shown on the drawings.
fixed diaphragm formed in one piece with or secured to the outer casing a and
forming the fixed back of the grate. It contains vertical slots e c c. ddd are the
fire-bars forming the bottom of the grate; those which are not terminated by the
splayed sides of the grate having prolongations e ee which (when the grate is in its
normal position) pass through the slotted holes e e e into the space at the back of
the fire-place. The extensions e e e of the fire-bars may be continued in the same
plane as the fire-bars but are preferably bent downwards as shown in Figures 3 and 5
at such an angle as to become horizontal or nearly so when the grate is pulled
forwards into the extended or charging position. are the movable sides of the
grate, having extensions hh which pass through the back of the grate and space ƒ
into the cavities ii when the grate is in its normal position as shown in figure 3.
jare the bars forming the front of the grate terminated at either end by the
pillars. These pillars are extended downwards towards the hearth and rest on
pivots about which the apparatus rocks. The pivots are carried in standards m m
which form part of or are attached to the outer casing a. The front, hoitom and
sides of the grate are either formed in one piece or firmly attached to each other so
as to be capable of being vibrated bodily about the pivots 17. When it is required to
replenish the fire, the grate is pulled forwards into the charging position shewn in
figure 5 by engaging a bar or poker with the hooks n n attached to the front of the
grate, or by other means. The extensions of the fire-bars eee and those of the
sides then pass forwards and upwards through the slots in the fixed back of the
grate, the latter thereupon assuming the position shown in figure 5. The fresh fuel
is then placed behind the incandescent fuel, and upon the extensions of the grate-
The grate is then forced back into its normal position carrying back with
it the live fuel and forcing it back against and partially heaping it upon the fresh
charge lying against the fixed back of the grate.
bars e e e.
In
In Figures 7 to 12 is represented a grate embodying the same principle of con-
struction, but having parallel instead of splayed sides. In this instance, it is not
necessary to produce the movable sides backwards beyond the fixed back of the
grate-Figure 7 is a front elevation, Figures 8 and 9 are vertical sections, Figure 10
a plan view and Figure 11 a sectional plan on the line CC (Figure 8).
Figures 7, 8, 10 and 11, the grate is represented in its normal position, and in
Figure 9 in its extended or charging position. Figure 12 is a vertical section on the
line D D (Figure 9). The slots through which the extensions of the firebars move,
are contained within an iron frame o, fixed at the back of the grate, which may be
surmounted by a piece of stone or firebrick p. In other respects, the foregoing
description relative to Figures 1 to 6 applies to the present construction.
In Figures 13 to 18 is represented a method of applying the principle of my inven-
tion to a
"dog" grate with open sides-Figure 18 is a front elevation, Figure 14 a
vertical section, Figure 16 a plan view and Figure 17 a sectional plan on the line E E
(Figure 13). These four figures show the grate in its normal position. Figure 1.5
is a vertical section corresponding with Figure 14, but shewing the grate in its
extended or charging position; and Figure 18 is a vertical section on the line F F
(Figure 16). In this type of construction, the firebars forming the bottom of the
grate do not rise vertically at the back when pulled forward, but slide horizontally
over friction rollers : and the extension of the firebars may be formed of one solid
plate moving through a horizontal slot in the fixed back of the grate s. Between
the back of the grate and the wall is left a space t for the reception of the extensions
of the bottom and sides of the grate; and this, where necessary, is supplemented by
a cavity u cut into the wall. The barse forming the sides of the grate have
likewise extensions which pass through holes in the fixed back S into the spaces t
and a when the grate is in its normal position.
The front of the grate may be supported on friction rollers as at the back, and the
force required to pull or push the grate forwards and backwards obtained by a direct
pull or pressure applied to the bottom of the grate by means of a hooked instrument

page_text: or otherwise. In order, however, to facilitate the operation of moving the grate
means of the following description may be employed:Two small standards we are
fixed on the floor of the hearth and carry pivots whereon two bars a vibrate. When
the grate is in its normal position, these bars are vertical and fit closely to the sides
and immediately
Y
of the grate. They are connected together at the top by a bar
below the bottom of the grate by another bar z; the four bars y forming a rigid
frame, which, in the normal position of the grate, fits closely round, and is scarcely
distinguishable from, the front of the grate. A short arm a¹ is formed upon the
bar a to which the bottom of the grate is attached by a pivot as shown. At the centre
of the horizontal bars y and are formed two hooks respectively for the reception
of a bar or poker. When by this means a pressure in a forward direction is applied,
the framey moves forward and assumes an angular position in advance of the
grate. At the same time, the front of the grate together with the bottom and sides
purpose of
move forward into the position shewn in figure 15. The leg is for the
supporting the front of the grate, whether in its normal or extended position. As
the front of the grate rises slightly and then falls again during its movement forward
into the charging position, the side bars are hinged at their connection with the
front bars. The grate having been pulled forward, the fresh charge of fuel is intro-
duced to the space rendered vacant between the incandescent fuel and the fixed back
of the grate, whereupon the grate is pushed back into its normal position.
Having thus particularly described and ascertained the nature of this invention and
in what manner the same is to be performed, I claim :-
First The improved construction of open-hearth fire-grate, substantially as herein
described and having its front, sides and bottom, mounted to rock upon a pivot, or
arranged to slide to and fro, and to permit of the introduction of fresh fuel between
the live fuel carried by the moveable parts of the grate and the fixed back thereof.
Secondly: The improved method of working open-hearth fire-grates, substantially
as herein described and whereby the live fuel is drawn bodily forward, the fresh fuel
introduced behind same, and the live fuel then forced back against and partly over the
fresh charge
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C.,
Agent for the Applicant.