IMPROVEMENTS IN OPEN STOVES OR FIRE GRATES
Year: 1882

page_text: LETTERS PATENT to Edward, Richard Hollands of N° 37 Stoke Newington
Green in the County of Middlesex, for an invention of "IMPROVEMENTS IN
OPEN STOVES OR FIRE GRATES
"
PROVISIONAL SPECIFICATION left by the said Edward Richard Hollands
at the Office of the Commissioners of Patents on the 19th December 1882.
EDWARD RICHARD HOLLANDS of N° 37 Stoke Newington Green in the County
of Middlesex. "IMPROVEMENTS IN OPEN STOVES OR FIRE GRATES
"
This Invention has for its object improvements in open stoves or fire grates and
relates to an improved mechanical arrangement of the parts of a smoke consuming
grate such as is described in the Specification of a former Patent granted to me
No 4448 in the year 1880. In these grates when it is required to feed the fire a
rake like instrument is caused to enter at the bottom of the fire basket and then
to rise with the ignited fuel upon it-thereby preparing a space at the bottom of
the fire for the reception of the fresh fuel.
According to my present invention the rake like instrument is carried by two
arms one on either side of the grate-The head of the rake is attached to a bar
connecting the lower ends of these side arms. The rake teeth project forward
from the head and stand when out of use beneath the bottom of the fire basket.
At some distance from their upper ends the side arms of the rake are pin jointed
to links which in turn are jointed to the stove front and project rearwards. A
locking contrivance consisting of a notched plate suspended by its upper end is
provided in connection with these links-it engages with a bar connecting their
hinder ends and retains them except when the locking contrivance is pushed back
out of the way as afterwards described. The rake is moved by means of links
attached to side arms below the points of suspension; they descend and pass
rearwards to a connection with the sides of a frame which in front is jointed to
the side plates of the stove near the ground-The frame has a curved arm upon
one side projecting to the front and terminating in a socket suitable to receive the
end of the poker or other lever. By means of the lever the frame can be raised,
Price B1

page_text: turning about its connections with the side plates of the stove. When the frame
is thus raised the rake is thrust forward and upwards by the connecting links until
the head of the rake comes against inclined guiding surfaces which prevent its further
advance just previously the upper end of one of the rake arms strikes a pin upon
the locking plate and pushes it back. The further movement of the frame now
that the rake is unable to swing further forward and now that the links which
carry the pivots from which it is hung are unlocked causes the rake to be lifted
By this movement the space for the fresh fuel is prepared and at the same time the
lowermost front bar of the grate is displaced to admit the coal-This front bar has
a right angle bend at each end and is mounted on pivots on the side cheeks of the
stove and on these it can rock; its inner ends are weighted to hold it up in place
until it is removed by the action of the rake. A projection upon the rake comes
against one of the inner ends of this front bar when the rake is raised and gives
the required movement. The rake when lifted is sustained by the locking plate
which now engages with the bar previously held by it in another notch. When
the fire has been fed the lever is used to push back the frame upon which it acts
and as the rake cannot descend with the frame the links which connect these parts
cause the rake to swing back on its pivots and thereby the rake teeth are with-
drawn from the fire. The same movement of the rake brings a pin or projection
at the upper end of one of the rake arms to the front of a guide piece upon the
locking plate. This guide piece is used to prevent the rake teeth swinging forward
as they descend. The downward motion now takes place being permitted by a
backward releasing movement of the locking plate caused by the rake arm coming
into contact with it.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edward Richard Hollands in the Great Seal Patent Office on the
19th June 1883.
EDWARD RICHARD HOLLANDS of N° 37 Stoke Newington Green in the County
of Middlesex "IMPROVEMENTS IN OPEN STOVES OR FIRE GRATES
"
This Invention has for its object improvements in open stoves or fire grates and
relates to an improved mechanical arrangement of the parts of a smoke consuming
grate such as is described in the Specification of a former Patent granted to me
No 4448 in the year 1880. In these grates when it is required to feed the fire a
rake-like instrument is caused to enter at the bottom of the fire basket and then
to rise with the ignited fuel upon it-thereby preparing a space at the bottom of
the fire for the reception of the fresh fuel.
My improved mechanical arrangement is illustrated by the drawings annexed.
Figure 1 is a. front elevation, Figure 2 is a side elevation and Figure 3 is a.
vertical section.
In these figures the parts are in the positions they occupy when the rake is in
its lower position.
Figure 4 is a side elevation showing the rake raised to the position for feeding
the fire.
Figures 5, 6 and 7 are also vertical sections representing some of the parts in
the successive positions which they assume.
In these figures a is the stove front, b b are curved bars forming the back and
bottom of the fire basket. ccc are the front bars one of them (that marked c')
is moveable as hereinafter explained, and d is the rake like instrument by which
the fire is lifted preparatory to the supply of fresh fuel.
According to my present invention the rake-like instrument d is carried by two.
arms e, e one on either side of the grate. The head of the rake is attached to a
bar e connecting the lower ends of these side arms. The rake teeth project
forward from the head and stand when out of use beneath the bottom of the fire
basket as is seen in Figure 3. At some distance from their upper ends at e² the
side arms of the rake are pin jointed to links f. f. which in turn are jointed at f¹. f
to the stove front and project rearwards. A locking contrivance consisting of a
notched plate g suspended by its upper end at g' is provided in connection with
these links f; it engages with a bar f' connecting their hinder ends and retains
them except when the locking contrivance is pushed back out of the way as
afterwards described. The rake is moved by means of links h attached to the side
arms e below the points of suspension; they descend and pass rearwards to a con-
nection with the sides of a frame i which in front is jointed at i¹ to the side plates
of the stove near the ground. The frame has a curved arm i upon one side pro-
jecting to the front and terminating in a socket 3 suitable to receive the end of
the poker or other lever. By means of the lever j the frame can be raised turning
When the frame is thus
about its connections with the side plates of the stove.
raised the rake & is thrust forward and upwards by the connecting links h until
the head of the rake or the bar e¹ comes against inclined guiding surfaces at a¹
which prevent its further advance. Just previously the upper end of one of the
rake arms e strikes a pin g² upon the locking plate and pushes it back. The
further movement of the frame i now that the rake is unable to swing further
forward and now that the links f. f. which carry the pivots from which it is hung
are unlocked causes the rake to be lifted. By this movement the space for the
fresh fuel is prepared and at the same time the lowermost front bar c¹ of the grate

page_text: is displaced to admit the coal. This front bar has a right angle bend at each end
and is attached to the side pieces c², c², which are mounted on pivots c³ on the side
cheeks of the stove and on these it can rock the side pieces c² are weighted to hold
the bar c¹ up in place until it is removed by the action of the rake. A projection d*
upon the rake comes against one of the side pieces c³ of this front bar when the
rake is raised and gives the required movement. The rake when lifted is sustained
by the locking plate g which now engages with the bar f2 previously held by it in
another notch. When the fire has been fed the lever j is used to push back the
frame i upon which it acts and as the rake cannot descend with the frame the
links which connect these parts cause the rake to swing back on its pivots and
thereby the rake teeth are withdrawn from the fire. The same movement of the
rake brings a pin or projection ex at the upper end of one of the rake arms to the
front of a guide piece g³ upon the locking plate g. This guide piece is used to
prevent the rake teeth swinging forward as they descend. The downward motion
now takes place being permitted by a backward releasing movement of the locking
plate g caused by the rake arm coming into contact with the pin g' upon it.
It is not necessary that both the arms e should have a link jointed to it, such
-
a link may be provided on one side only of the stove and the frame i in that case
becomes simply a lever with its fulcrum at i.
Figure 5 shows the position first assumed by the rake when the lever j is drawn
forward. Figure 6 shows the position when the forward movement of the lever j
is complete, the stove is then ready to receive fresh fuel underneath the rake. The
projection d on the rake by rising beneath a ledge on one of the side. pieces c² has
thrown the bar c! forwards and downwards. Figure 7 shows the position assumed
by the rake in returning, it is at the point to which it moves back before
commencing to descend..
It is convenient to apply a counterweight k on a chain passing over a pulley
and attached to one of the arms e to aid in lifting the rake.
Having thus described the nature of my said Invention and the manner of
performing the same I would have it understood that I claim:-
First. My improved open stove or fire grate substantially as described..
Second. The mechanism for operating and controlling the rake substantially as
described.
Third. The arrangement of the moveable bar c' and the means of operating the
same by a projection rising together with the rake substantially as described.
In witness whereof I the said Edward Richard Hollands have hereunto set
my hand and seal this eighteenth day of June in the year of our Lord One
thousand eight hundred and eighty three.
E
R HOLLANDS (LIS.)