Improvements in Refuse Consuming Furnaces, and in the Steam Generators Heated thereby.
Year: 1898

page_text: Date of Application, 3rd Jan., 1898-Accepted, 13th Aug., 1898
Improvements in Refuse Consuming Furnaces, and in the Steam
Generators Heated thereby.
I, FELIX LOUIS DECARIE, of the City Hall, Montreal, in the Province of Quebec
and Dominion of Canada, 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 relates to crematories, and more particularly to that class
designed for burning the garbage and refuse of cities and towns. To this end the
main and primary object of the present invention is to construct a garbage or
refuse crematory on a plan that will insure a thorough consumption of the matter
on an economical basis in the matter of fuel, as the invention contemplates means
for utilizing certain portions of the garbage or refuse when in the proper condition,
as the fuel for supporting the main consuming fire of the apparatus. The inven-
tion furthermore provides a construction of crematory with the parts thereof so
arranged as to insure a proper separation of the matter being burned, and also for
utilizing the heat created within the crematory for the purpose of generating
steam for power purposes.
With these and other objects in view which will readily appear as the nature of
the invention is better understood, the same consists in the novel construction,
combination, and arrangement of parts hereinafter more fully described, illustrated
and claimed.
Referring to the drawings:-
Figure 1 is a side elevation of a complete garbage or refuse crematory constructed
in accordance with this invention.
Figure 2 is a vertical longitudinal sectional view of the entire crematory or
apparatus, the line of section in the lower portion of the crematory being at one
side of the longitudinal center thereof.
Figure 3 is an enlarged vertical sectional view of one of the cremating chambers
of the crematory.
Figure 4 is a vertical transverse sectional view on the line 4-4 of Figure 2,
showing the crematory building enclosing the crematory.
Figure 5 is a similar view on the line 5-5 of Figure 2.
Figure 6 is a side elevation of a modified form of incinerator or crematory
embodying the principal features of the invention.
Figure 7 is a vertical longitudinal sectional view of the construction illustrated
in Figure 6.
Figure 8 is a vertical transverse sectional view on the line 8-8 of Figure 7.
Figure 9 is a front view of the incinerator or crematory illustrated in Figures 6,
7 and 8.
Referring to the accompanying drawings;-the numeral 1 in Figures 1, 2, 3
and 4, designates a furnace casing built in any suitable length according to the
required capacity of the crematory, and said furnace casing is preferably built
of masonry and formed with an arched closed top portion 2, Figure 4. The
furnace casing 1, is designed to be arranged within a crematory building 3,

page_text: Figure 4, and is built upon a suitable foundation, below the floor line of the
building. In the present invention the said casing 1, is formed with a plurality
of interior successively arranged cremating chambers 4, (see Figures 2 and 3,)
separated from each other by vertical partition, walls 5, extending transversely
across the interior space of the casing from top to bottom and from side to side
thereof, as clearly illustrated in Figure 4 of the drawings. The vertical partition
walls 5, are spaced at regular distances apart to form the successive series of
cremating chambers 4, and at their upper ends next to the top of the furnace
casing the vertical partitions 5, have formed therein flue openings 6, Figures 2,
3, and 4, which provide communication between the several chambers and are
designed to be covered and uncovered by means of cut-off dampers 7, having
operating levers or handles 8, Figure 4, extending beyond opposite sides of the
casing so as to provide means for opening and closing the dampers as may be
required.
Each of the cremating chambers 4, has arranged therein transversely from side
to. side thereof a pair of spaced upwardly convergent tubular or hollow garbage
supporting grates 10, (see Figures 3 and 4.) The oppositely located garbage
supporting grates 10, incline upwardly toward the transverse center of the
cremating chamber 4, and diverge from their upper adjacent ends to opposite
lower sides of the cremating chamber, and while for the purposes of this inven-
tion, it is simply necessary to construct the grates 10, in a hollow or tubular form,
I have illustrated these grates as essentially comprising a plurality of parallel
grate tubes or pipes 11, arranged sufficiently close together to form a support
for ordinary garbage and refuse, while at the same time permitting the ascending
flame and heat to pass therebetween and into the garbage supported thereby.
The oppositely arranged upwardly convergent tubular garbage supporting grates 10,
form an inverted V-shaped support for garbage, and the particular disposition
of said grates provides for forming between the same and the adjacent walls of
the cremating chamber in which they are arranged the garbage cells or baskets 12,
into which the garbage to be incinerated is dumped.
The parallel grate tubes or pipes 11, comprising the oppositely disposed upwardly
convergent garbage supporting grates in each of the cremating chambers 4, are
fitted at their upper ends in the lower sides of an upper centrally arranged dis-
tributing header drum 13, Figures 2, 3, and 4, extending transversely across the
cremating chamber and projecting at its opposite ends through the opposite side
walls of the furnace casing, and the opposite ends of said upper distributing
header 13, has fitted thereto the lower ends of the oppositely arranged steam con-
ducting pipes 14, Figures 1 and 4, provided with suitable valves 15 and connected
at their upper ends with the steam drums 16, arranged longitudinally above the
furnace casing at opposite side thereof, to provide for the pipe connections 14
with the projecting ends of the distributing header 13 within each of the series
of cremating chambers 4, as clearly illustrated in Figures 1 and 4 of the drawings.
It will therefore be seen that the upper oppositely arranged steam drums 16,
serve to collect and store the steam generated within the tubular garbage support-
ing grates of each cremating chamber, and by means of suitable pipe connections 17,
steam may be conducted to an ordinary steam engine 18, (see Figure 1) or utilized
for other power purposes, as will be readily understood, the object of the pipe
connection described being simply to utilize the heat within each cremating
chamber for generating steam and storing such steam for power purposes.
The pipe connections 14, between the transverse distributing headers within
each cremating chamber may be provided with ordinary water gauge 19, Figures 1
and 4, for indicating the level of water therein, and the distributing headers 13,
are constructed in the form of cylindrical drums which are of a sufficient size to
hold the water circulated therein through the tubes or pipes 11, and also to provide
a large heating area for such water. From their connection with the lower side
of the upper distributing header 13, the grate tubes or pipes 11, in each cremating
chamber diverge downwardly to opposite sides of the chamber, and near their

page_text: lower ends are angled as at 20, to form a rest for supporting the body of the
garbage which has a constant tendency to slip downward within the cells 12 and to
cave in as it becomes dried and is being consumed (see Figure 3). The lower angled
ends 20, of the grate tubes or pipes 11, within each cremating chamber are con-
nected with the water distributing drums 21, arranged transversely within opposite
sides of the cremating chamber and having connected with their outer ends
exterior to such chamber the water pipes 22, which furnish a supply of water
to the drums 21, in order that the pipes or tubes 11, may be kept filled with the
same to prevent burning out, and at the same time to provide for a continuous
generation of steam for power purposes (see Figures 1 and 4).
Within the bottom portion of each cremating chamber 4, below the inverted
V-shaped garbage support, the furnace casing is formed with a pair of oppositely
located fire boxes 23, Figure 4, arranged respectively at opposite sides of a centrally
disposed fire wall 24, (not shown in Figures 2 and 3), built on the floor of the
casing and extending well up into the space between the oppositely located
grates 10, in order to insure the deflection of the flame and products of com-
bustion upward through the grates 10. At opposite sides of the central fire
wall 24, Figure 4, are arranged the oppositely located fire grates 25, below which
grates are formed the ash pits 26, with which communicate the door enclosed ash
pit openings 27, formed at opposite lower sides of the furnace casing, and said
casing is also provided with ordinary fire doors 28, at opposite sides, which cover open-
ings communicating with the fire boxes 23, over the grates 25, whereby ready access
may be had to the fires on the grates 23, for stoking or otherwise attending to
the same (see Figures 3 and 4.) In connection with the pair of fire grates 25,
within the bottom portion of each cremating chamber, the furnace casing has
formed in the bed thereof the open conveyor pits 29, Figures 2, 3 and 4, extend-
ing longitudinally the entire length of the crematory and communicating with the
interior thereof at the bottom so as to receive the ashes and clinkers as they fall
or are raked from the fire grates 23, for the cremating chambers 4. Said open
longitudinal conveyor pits 29, have arranged therein endless conveyor aprons 30,
arranged to travel over the conveyor rollers or wheels 31, Figure 2, mounted in
suitable bearings at opposite extremities of the crematory or incinerator, and
fitted within each of the open conveyor pits 29, under the upper portion of the
conveyor aprons 30, is a separating sieve 32, Figures 3 and 4, which serves to hold
thereon clinkers and ashes, while the finer portions of the ashes are allowed to sift
through into the bottom of the pit so as to be conveyed in one direction by the
lower portion of the apron 30, while the clinkers and ashes on top of the sieve
are conveyed in an opposite direction by the upper portion of the apron. This
separation of the clinkers and ashes is made important as the materials thus
separated can be used for making road beds, it being understood that the material
in question is often utilized for this purpose.
While the several cremating chambers 4, equipped with garbage supporting
and fire grates relatively disposed and arranged in the manner described, com-
municate with each other through the damper-controlled flue openings 6, Figure 4
each of said cremating chambers 4, has formed in the top thereof separate oppositely
located flue openings 33, in which are fitted the lower ends of the oppositely arranged
branch flues or pipes 34. Figures 1 and 4, having elbow connections at their upper
ends with opposite sides of a common escape flue or pipe 35, arranged longitudinally
above the furnace casing to provide for the branch Hue connections 34, therewith
from each cremating chamber, and fitted at one end in the top of the furnace casing
as at 36, so as to communicate with the upper end of the vertical end draft flue 37,
(see Figure 2). The flue 37 is formed vertically within one end of the casing 1,
and communicates with the last cremating chamber 4 of the series of such chambers
formed within the casing, and said vertical end flue 37, extends to the floor of the
crematory to form within its lower end a dust pit 38, Figure 2 and directly above
such dust pit the draft flue 37, opens into an escape passage 39; communicating
with a scent consuming furnace 40, built at one end of the main casing 1, and

page_text: provided therein with a fire grate 41 on which is maintained a fire to provide for
consuming the odors or scents that may be carried with the hot gases through
the furnace 40. The said furnace 40, at the side opposite its communication with
the escape passage 39, opens into the lower end of the stack 42, which is sufficiently
high to provide for maintaining a proper draft within the furnace casing.
Under ordinary conditions when all of the cremating chambers 4 are in operation,
the dampers 34", Figure 4, in the pipes 34, are closed so as to compel the heat
and other products of combustion to pass from one cremating chamber to another
through the flue opening 6, and by reason of this circulation of the hot gases and
other products of combustion, the gases of one cremating chamber are consumed
in the next succeeding chamber, so that when the cremating chambers are thus
operated in series, very little, if any, odor passes out of the end draft flue 37,
into the scent consuming furnace 40, although it will be understood that whatever
scent or odor may be carried out of the last cremating chamber of the series will
be consumed by the fire within the scent consuming furnace.
At times it may
be necessary to cut off one of the cremating chambers from the adjacent chambers,
and this is accomplished by closing the proper dampers 7. When one or more
of the cremating chambers are thus cut off from direct communication with each
other the heat and other products of combustion, including the odoriferous gases,
are allowed to escape from the other chambers into the common escape flue or
pipe 35, which conducts the same to the end flue 37, and thence through the
furnace 40, into the stack 42.
The furnace casing 1 is provided in opposite sides thereof with a plurality of
door enclosed cell openings 43, Figures 1, 2 and 3 communicating with the
garbage cells or baskets 12 to permit of access to such cells or baskets for the
purpose of removing incombustible matter and also to permit of the stoking of
the garbage within the cells or baskets whenever necessary. Above the plane of
the door-enclosed cell openings 43, the furnace casing is further provided in opposite
sides thereof with the door enclosed feed openings 44, communicating with the
interior of the cremating chambers 4, and the garbage cells or baskets 12, formed
therein, to permit of garbage being dumped into such cells or baskets for incinera-
tion, and at this point it is to be observed that the series of feed openings 44,
for the crematory at opposite sides of the furnace casing are arranged above the
plane of the roadway or dump floors 46 built on the supporting girders 46"
Figures 1 and 4, within the crematory building 3, at opposite sides of the furnace
casing, said girders 46" being set into the side walls of the furnace casing and
the side walls of the building in which the casing is arranged, as clearly illustrated
in Figure 4 of the drawing. The said roadways or dump floors 46, are arranged
longitudinally along opposite sides of the furnace casing and are extended at their
ends into the inclined approaches 47, Figure 1 and 2, which lead from the road
or street into the ends of the crematory building, so that the garbage carts or
wagons can be driven directly onto the roadways or floors 46, and the contents
thereof dumped into the cells or baskets of the cremating chambers through the
feed openings 44, as will be readily understood.
The roadways or dump floors 46 at opposite sides of the furnace casing 1, are
also extended along opposite sides of the auxiliary heater casing 48, built at one
end of the main furnace casing 1, next to the first cremating chamber 4, of the
series of such chambers in said casing (see Figures 1 and 2). The auxiliary
heater casing 48, communicates with the adjacent cremating chamber 4, of the
furnace casing through a flue opening 49 formed in the adjacent wall of the
casing 1, (see Figures 2, 3 and 5), said flue opening of the casing 1 being preferably
controlled by a damper and permitting the odoriferous and other hot gases to
pass from the interior of the casing 48, into the first cremating chamber of the
main furnace. The said auxiliary heater casing 48 essentially comprises inner
and outer metallic shells 50 and 51 connected by intermediate fastening stays 52,
Figure 5, so as to confine therebetween a steam jacket or steam space 54, with
which steam jacket or space 54 communicates one end of the steam conducting

page_text: pipes 55, provided with suitable cut-off valves 56 and connected at their upper
ends with one end of the steam drums 16, to provide means for constantly circulat-
ing the highly heated steam throughout the hollow shell of the casing 48, so that
the radiated heat of such casing will assist in drying the garbage or refuse that
is introduced into opposite sides thereof through the feeding openings 57, formed
in opposite sides of the casing 48, above the plane of the roadways or dump floors 46,
and covered by the swinging doors 58, (see Figure 1).
Arranged longitudinally within the auxiliary heater casing 48, and extending
from end to end thereof is a pair of spaced upwardly convergent tubular or hollow
garbage supporting grates 10%, Figures 2 and 5, similar in construction to the
corresponding grates 10, in the cremating chambers of the furnace proper, and
while the garbage supporting grates 10", in the auxiliary heater casing may be
constructed in any hollow or tubular form, still the said grates preferably comprise
a pair of parallel grate tubes or pipes 11º, arranged sufficiently close together to
form a support for ordinary garbage or refuse suitable for fuel, while at the same
time permitting ashes and the like to sift through into the bottom of the casing 48,
where it is collected within the pits 29, and distributed to the ends of the crematory
by means of the conveyor aprons 30, traveling in such pits (see Figure 2 also
Figure 5).
The oppositely arranged tubular garbage supporting grates 10ª, are upwardly
convergent in a similar manner to the grates 10, of the cremating chambers, and
form an inverted V-shaped support for the garbage, while the lower ends of said
tubes or pipes 11", comprising the grates 10", are angled as at 20", to form a
rest for supporting the body of the garbage within the garbage colls or
baskets 12, formed between the side walls of the casing 48, and the oppositely
located grates 10" Figure 5. The upper ends of the grate tubes Dr
pipes 11, which converge toward the longitudinal center of the casing 48,
are fitted to the underside of a central longitudinally arranged upper header
drum 13", connected at its opposite ends with the ends of the casing 48 and com-
municating with the steam jacket or space thereof so as to receive the supply of
live steam and distribute the same throughout the plurality of tubes or pipes
comprising the opposite upwardly inclined garbage supporting grates (see
Figure 2). The lower angled ends of said tubes or pipes 11", are fitted to the
opposite lower circulating drums 21° Figure 5, fitting within opposite lower sides
of the casing 48, and extending longitudinally thereof so as to communicate
at their ends with the steam jacket or space of the casing 48 at the ends of
the latter, and thereby completing a circulation for the steam whereby the drums 13"
and 21, and the tubes or pipes 11", will be constantly filled with steam to
insure a thorough drying of the garbage introduced into the casing 48.
The casing 48, is provided in opposite lower sides thereof with a plurality of
discharge openings 59, Figures 3 and 5, communicating with the adjacent open
sides of the conveyor boxes 60, arranged longitudinally of the entire crematory
at opposite sides thereof, Figure 1. The portions of the conveyor boxes 60, ex-
tending along opposite lower sides of the auxiliary heater casings 48 are prefer-
ably provided with screen bottoms 61, below which are formed short deflecting
chutes 62, Figure 5, extending through the side walls of the auxiliary heater
casing below the plane of the openings 59, so as to discharge the material screened
through the bottom 61, back into the bottom bf the auxiliary heater casing so
as to be collected within the pits 29, as will be hereinafter more particularly
referred to. At one end of the heater casing 48, the opposite longitudinal conveyor
boxes 60 are provided with short upwardly inclined portions 63, Figure 1, which
prevent the elevation of liquid matter into the horizontal portions of the boxes
extending along opposite sides of the casing 1; and arranged to travel within the
boxes 60, throughout the entire length thereof are the endless conveyor aprons 64,
Figures 2 and 4, the upper portions of which aprons are supported for travel
on the supporting rollers 65 Figure 2, mounted within the boxes 60, while
the lower portions of the said aprons 64, travel on the bottom of

page_text: the boxes 60 and drag the garbage along therein to the feeding hoppers GG,
connected with the bottoms of the boxes 60, and extended laterally into the side
walls of the furnace casing over the fire grates 25, therein so as to deliver or feed
dried garbage to such grates as fuel (see Figures 2 and 4). The hoppers 66,
communicate at their upper ends with the interior of the boxes 60, so that the
dried garbage will fall thereinto as it is dragged along within the boxes by the
conveyor aprons, and said hoppers 66 are provided with suitable cut-off plates or
valves 67 controlled by operating levers 68, arranged exterior to the furnace
casing Figures 1 and 4.
Each conveyor box 60, extends beyond one end of the furnace casing 1, and
opens at such end into the lower end of an upwardly extending inclined elevator
spout 69, Figures 1 and 2. The elevator spouts 69, for the oppositely located
conveyor boxes 60, are convergently arranged at one end of the furnace casing and
communicate at their upper ends with the interior of a distributing box 70,
arranged longitudinally above the furnace casing 1, and parallel with and below
the common escape flue or pipe 35, Figures 1, 3 and 4. The elevator spout 69,
accommodates for movement therein endless elevating belts or aprons 71, Figure 2,
which serve to elevate the garbage delivered into the lower ends of the spouts 69,
through such spouts and to discharge the same into one end of the distributing
box 70. This box 70, extends the entire length of the casing 1, and accommodates
for movement therein an endless distributing apron or belt 73, the lower portion
of which distributing apron or belt drags the garbage along on the bottom of
the box 70. The said box 70, is provided at intervals with bottom discharge
openings 74 having short chute connections 75, with the top feed openings 76,
Figures 2 and 4, formed in the top of the casing at the central top portion of each
cremating chamber 4, to provide for delivering the garbage from the box 70,
into such chambers. The top feed openings 76, are disposed directly above the
upper distributing header drums 13, to which the grate tubes or pipes 11 are con-
nected so that as the garbage falls through the openings 76, it is deflected by
said drums 13, into the oppositely located garbage cells or baskets 12, thereby
insuring an even distribution of the garbage within opposite portions of the cre-
mating chambers when it is delivered thereinto through the top feed openings 76.
The garbage which is dried in the auxiliary heater 48, is employed for fuel and
distributed to the different cremating chambers in the manner described, but
certain garbage which is delivered to the crematory in the carts or wagons may be
in such a condition as to be immediately available for use as fuel, and to provide
for utilizing garbage in this condition, inclined feed chutes 77, are arranged in
pairs, respectively, at opposite sides of the furnace casing below the roadways or
dump-floors 46, (see Figures 1 and 4). The said feed chutes 77, are fitted at their
upper ends to the roadways or floors 46, and are covered at their upper open ends
by the trap doors 78, Figure 4, which when opened, allow the garbage to be
dumped directly from the cart or wagon into the chutes 77, and the lower ends
of said chutes are extended laterally through the opposite side walls of the
casing so as to discharge there into directly above the fire grates 25, for each
cremating chamber; whereby garbage in a condition for use as fuel may be dumped
directly onto the fire grates for such purpose.
It may be desirable in preparing the garbage for fuel in the heater or drier 48,
to provide for catching the liquid and swill as it runs from the garbage through
the spaces between the supporting grates 10", within the casing 48, and to secure
this result a hollow evaporating pan 80, may be employed as illustrated in
Figure of the drawings. This hollow evaporating pan 80 is of a width nearly
equalling that of the casing 48, to provide for catching the liquid matter
passing through the grates 10, and at its opposite side edges the hollow pan 80,
has pipe connections 81 with the opposite side portions of the steam jacket or
space 54, of the casing 48, said pipe connections 81 allowing for contraction and
expansion, and at the same time providing means for heating the pan 80, by steam
so as to evaporate and dry the matter which may fall thereon. The said pan 80, is

page_text: preferably formed with a peripheral upstanding flange 82, to confine the liquid
matter thereon during the drying and evaporation thereof. Of course, with the
pan SO, in place within the heater or drier 'casing 48 the principal separation is
intended to be accomplished through the screen bottoms 61 of the boxes 60,
and the separation will be more effective at these points because the garbage as it
falls into the boxes 60, is in more or less of a dried condition, and the ashes and
other matter which sifts through the screen bottom 61, will be readily deflected
into the pits 29, and distributed by means of the aprons 30. While the hollow
evaporating pan 80, has been described and illustrated in connection with the
garbage supporting grates of the heater or drier, it will of course be understood
that the said pan may be advantageously employed below and in connection with
the garbage supporting grates of the cremating chambers.
In operating the crematory it is of course understood that fires are primarily
kindled on the fire grates 25, within the bottom portion of each cremating chamber,
and the garbage is dumped through the feed openings 44, at opposite sides of the
furnace casing onto the supporting grates 10, within the cells or baskets 12
enclosed thereby. The heat and flame from the fires on the grates 25, will ascend
between the oppositely located supporting grates 10, in each cremating chamber,
and will work its way between the grate tubes near their connection with the
upper distributing drum 13. As the ascending flame from the fires on the
grates 25, consumes and reduces the garbage, the same slips downward on
the inclined grates 10, and thereby continually feeds itself toward the bottom of the
cells or baskets 12, so as to be subjected to the direct action of the consuming
fires, and in this way the garbage within the garbage cells automatically feeds
itself downward to leave room for fresh supplies of garbage. When all of
the cremating chambers are in direct communication, the odoriferous gases and
other products of combustion pass to the end flue 37, and through the fire of the
furnace 40, to the stack 42, the scents or odors of the gases and escaping products
of combustion being consumed within the furnace 40, so that the offensive odors
will not escape from the stack, but should it be necessary to cut off communication
between any of the cremating chambers, the draft may be deflected through the
common escape flue or pipe 35 in the manner already described.
Certain portions of the garbage are introduced through the openings 57 of
the heater or drier casing 48, and the garbage which falls onto the grates 10,
is dried by the steam circulating through such grates in the manner described,
and automatically falls in a more or less dried state into the conveyor boxes 60,
where a separation of certain portions of the garbage occurs in the manner pre-
viously referred to. The dried garbage is caught up within the boxes 60, by the
endless conveyor aprons 64, and carried along to the feeding hoppers 66, from
which it may be discharged as required onto the fire grates 25, and consumed as
fuel, this operation being continued repeatedly so that while the crematory is
in operation dried garbage will form the fuel for the consuming fires, and as
previously referred to garbage which is delivered in a condition suitable for fuel
may be dumped directly onto the fire grates through the chutes 77, Figure 1.
The garbage which is not discharged through the hoppers 66, is conducted to the
spouts 69, through which it is elevated by the belts or aprons 71, into the dis-
tributing box 70, and is carried along in said box 70, by the distributing apron
or belt 73, to the discharge openings 74, from which openings it is delivered into
the cremating chambers in the manner previously described, (see Figure 2).
The principle of construction upon which the crematory is built is shown em-
bodied in a smaller crematory or incinerator, in Figures 6 to 9 inclusive. This
construction of crematory or incinerator is adapted for hospital and similar use
and the numeral 85 designates the casing comprising inner and outer metallic
shells 86 and 87, connected by intermediate fastening stays 88, so as to confine
there between a waterjacket or space 89, Figures 7 and 8. The metallic water
jacketed casing 85, has formed therein upright hollow partition walls 90 and 91,
respectively, communicating with the water space of the jacket and having formed

page_text: therein at the top of the casing, the draft openings 92, which provide communica-
tion between the interior portions of the casing and the end draft flue 94, formed
between the partition wall 90, and one end of the casing 85, (see Figure 7). Said
end flue communicates at its lower end at 95, with the lower end of the stack 96.
arranged exterior to the casing 95, and also communicating with the upper part
of the casing through the damper controlled draft opening 97, piercing the rear
end wall of the casing. The vertical end flue 94, has mounted within its lower end
a fire grate 98, Figure 7, designed to support a fire for consuming the odoriferous
gases as they pass downward through the flue 94, into the stack 96, the space
above and below the fire grate 98, being accessible through the door enclosed
openings 99, Figure 6, formed in opposite sides of the casing 85.
The upright hollow partition wall 91, is arranged intermediate of the front
and rear ends of the casing 85, and is joined at its lower edge with a hollow
floor 100 communicating with the water jacket of the casing and provided therein
with an opening 101 covered and uncovered by a sliding grate 102, controlled by
an operating rod 103, extending to the front of the casing 85, (see Figure 7). The
wall 91, and the floor 100, enclose within the upper front portion of the casing 85,
a drying chamber 104, which is designed to hold garbage while the same is being
dried for fuel, and after being dried so as to be available for this use, the same is
dropped through the opening 101, onto the horizontal fire grate 105, arranged
within the lower portion of the casing 85, and extending the entire length thereof,
Figures 7 and 8.
Between the partition walls 90 and 91, is arranged a pair of upwardly con-
vergent tubular or hollow garbage supporting grates 106, Figures 7 and 8, pro-
vided with lower angled ends 107, fitted to opposite sides of the casing 85, so as to
communicate with the water jacket thereof. The opposite upwardly convergent
or inclined garbage supporting grates 106, preferably comprise a plurality of
parallel grate tubes or pipes 108, fitted at their upper ends to the lower side of a
cylindrical header drum 109, connected at its ends respectively with the opposite
walls 90 and 91 and communicating with the interior of such walls so that there
will be a constant circulation of water through the tubes or pipes 108. The sup-
porting grates 106, form downwardly tapering garbage cells 110, Figure 8,
within opposite side portions of the casing 85, and in connection with these
grates 106, the same operation is involved as in the cremating chambers 4, of
the construction hereinbefore described. The heat generated within the casing 85,
serves to generate steam within the water jacket, which steam may be collected
in a suitable steam dome 111, and utilized for power purposes, and at this point
it is to be observed that the casing 85, is provided at opposite sides with door
enclosed openings 112, and 113, respectively, to permit of feeding garbage respec-
tively to the cells 110, and to the drying chamber 104, (see Figures 6 and 7).
Other changes in the form, proportion, and the minor details of construction
may be resorted to without departing from the principle or sacrificing any of the
advantages of this invention.
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. A garbage crematory having a cremating chamber, a fire grate arranged
within the lower portion of the chamber, oppositely arranged upwardly convergent
tubular garbage grates fixedly supported above the fire grate and each com-
prising a plurality of parallel tubes or pipes, said grates forming garbage cells
within the opposite portions of the cremating chamber next to the side walls thereof,
door enclosed feed openings formed in the sides of the cremating chamber and
communicating separately with the separate garbage cells, and water circulating
connections with the ends of said grate tubes or pipes, substantially as set forth.
2. In a crematory, the casing, a pair of upwardly convergent tubular garbage
supporting grates mounted within the casing and diverging from their upper

page_text: adjacent enda downwardly toward opposite sides of the chamber in which they
are arranged, said garbage supporting grates comprising a plurality of parallel
grate tubes or pipes having outturned lower angled ends, a header drum fitted
to the upper ends of the grate tubes or pipes of both garbage supporting grates,
circulating connections with the lower angled ends of said tubes or pipes, and
a fire grate arranged below the upwardly convergent garbage supporting grates,
substantially as set forth.
3. In a crematory, the casing having a cremating chamber, a pair of spaced
upwardly convergent tubular garbage supporting grates mounted within the cre-
mating chamber and respectively extending upward from opposite sides of said
chamber, an upper header drum fitted to the upper ends of the tubular grates and
extending transversely across the cremating chamber, and projecting at its opposite
ends through the side walls of the casing, steam pipe connections with said pro-
jecting ends of the header drum, oppositely located drums arranged at opposito
sides of the cremating chamber and connected respectively with the lower ends
of the opposite tubular grates, water pipe connections with said oppositely located
drum, and a fire grate arranged within the lower part of the cremating chamber
below the garbage supporting grates, substantially as set forth.
4. In a crematory, the furnace casing having a plurality of interior successively
arranged communicating cremating chambers, a pair of spaced upwardly convergent
tubular garbage supporting grates mounted within each cremating chamber, an upper
distributing header drum fitted to the upper ends of each pair of grates and extend-
ing transversely across the cremating chamber, and projecting at its opposite ends
through the side walls of the casing, water pipe connections with the lower.
ends of each pair of grates, upper opposite exteriorly arranged steam drums,
pipe connections between the exterior projecting ends of the header drums and
said steam drums, and a pair of separated fire grates fitted within the lower
portion of each cremating chamber, substantially as set forth.
5. In a crematory, the furnace casing having a series of interior vertical
partition walls forming a plurality of successively arranged cremating chambers,
said partition walls being provided at their upper ends with damper controlled
flue openings, a stack connection with one end of the furnace and communicating
with the last cremating chamber of the series, a pair of spaced upwardly con-
vergent tubular garbage supporting grates mounted within each cremating chamber
and enclosing garbage cells within opposite portions thereof, suitable water cir-
culating connections with the ends of the garbage supporting grates, and fire
grates fitted within the lower portion of each cremating chamber, substantially
as set forth.
6. In a crematory, the furnace casing having a plurality of interior successively
arranged communicating cremating chambers, and open conveyor pits formed in
the bed thereof and extending the entire length of the crematory so as to com-
municate with the interior of all of the chambers therein, separating sieves fitted
in said conveyor pits, suitable conveyors working above and below said separating
sieves, fire grates fitted within the lower portion of each cremating chamber over
the conveyor pits, and garbage grates fitted in the cremating chambers above the
fire grates, substantially as set forth.
7. In a crematory, the casing, the fire grate arranged within the casing, a main
garbage supporting grate extending across the space above the fire grate, a
chamber independent of the main garbage grate for drying portions of garbage
for fuel, and means for delivering the portions of dried garbage from the drying
chamber onto the fire grate below the plane of the main garbage grate, substantially
as set forth.
S. In a crematory, the main casing having a plurality of interior successively
arranged communicating cremating chambers, main garbage supporting grates
fitted in the cremating chambers, fire grates arranged below said garbage supporting
grates, an auxiliary heater or drier casing having a draft communication with
the series of cremating chambers of the main casing, oppositely inclined garbage
B

page_text: supports arranged within said heater or drier casing, means for drying portions of
garbage for fuel on said supports, and means for automatically conveying the dried
garbage from the lower ends of said garbage supports in the heater or drier casing
onto the fire grates below the plane of the main garbage grates in the cremating
chambers, substantially as set forth.
9. In a crematory, the main casing having a plurality of interior successively
arranged cremating chambers, garbage supporting and fire grates fitted-in each
cremating chamber, a metallic steam jacketed auxiliary heater or drier casing
communicating with the series of cremating chambers, a pair of spaced upwardly
convergent tubular or hollow garbage supporting grates arranged longitudinally
within the heater or drier casing, a central longitudinally arranged upper header
drum communicating with the steam space at the ends of the heater or drier casing
and fitted to the upper ends of said tubular supporting grates, suitable connections
between the lower ends of said grates and the steam jacket or space of the casing,
and means for automatically delivering and conveying the dried garbage from
the lower ends of the garbage supporting grates in the heater or drier casing to the
fire grates in the cremating chambers, substantially as set forth.
a
10. In a crematory, the main casing having a plurality of interior cremating
chambers, garhage supporting and fire grates fitted in each cremating chamber,
steam jacketed heater or drier casing communicating with the cremating
chambers and provided in opposite lower sides with a plurality of discharge
openings, oppositely inclined upright tubular garbage supporting grates arranged
within the steam jacketed casing and communicating with the steam space thereof,
the lower ends of the oppositely arranged tubular grates extending to opposite
sides of the casing below said discharge openings so as to deflect dried garbage
therethrough, conveyor boxes arranged at opposite sides of the main auxiliary
casings exterior thereto, said conveyor boxes communicating. with said discharge
openings and having hoppers extended into the cremating chambers above the
fire grates, and suitable garbage conveyors arranged to work in said conveyor
boxes, substantially as set forth.
11. In a crematory, the main casing having a plurality of interior cremating
chambers, garbage supporting and fire grates fitted in each cremating chamber,
a steam jacketed auxiliary heater or drier casing communicating with the cremat-
ing chambers and provided in opposite lower sides with a plurality of discharge
openings, a pair of opposite oppositely inclined upright tubular garbage sup-
porting grates arranged within the steam jacketed casing and extending to the sides
thereof below the discharge openings, conveyor boxes arranged longitudinally
of the sides of the main and auxiliary casings exterior thereto, said conveyor
boxes communicating with said discharge openings, and provided with screen
bottoms in the portions thereof next to the auxiliary casing, deflecting chutes
extended from the screen bottom portions of the conveyor boxes into the auxiliary
casing below the grates therein, hopper connections extended from the conveyor
boxes into the cremating chambers over the fire grates, and suitable conveyors
arranged in said conveyor boxes, substantially as set forth.
12. In a crematory, the main casing having a plurality of interior cremating
chambers, garbage supporting and fire grates fitted in each cremating chamber,
an auxiliary heater or drier casing communicating with the series of cremating
chambers, a pair of spaced upwardly convergent tubular garbage supporting
grates arranged within the heater or drier casing, a hollow evaporating pan sup-
ported below said tubular grates and having pipe connections with the jacket of
said heater or drier casing, and suitable conveyors for delivering the dried garbage
from the heater or drier casing to the fire grates in the cremating chambers, sub-
stantially as set forth.
13. In a crematory, the main casing having a plurality of interior cremating
chambers provided with top feed openings, an auxiliary heater or drier casing
having garbage supporting grates therein and communicating with said cremating
chamber, said heater or drier casing also having opposite discharge openings for

page_text: dried garbage, opposite longitudinally arranged conveyor boxes communicating
with said discharge openings and provided at intervals with feeding hoppers
extended into the cremating chambers over the fire grates therein, garbage
conveyors working in said conveyor boxes, a distributing box arranged longi-
tudinally above the main casing and having bottom chute connections with the
top feed openings of the cremating chambers, a distributing apron or belt working
in the distributing box, and suitable elevators for delivering the garbage from
one end of the conveyor boxes to said distributing box, substantially as set forth.
14. In a crematory, the furnace casing having a series of interior vertical
partition walls provided at their upper ends with damper controlled flue openings and
forming a plurality of communicating cremating chambers having in the top
thereof separate oppositely located flue openings, a stack connection with one
end of the furnace, a common escape flue or pipe arranged longitudinally above
the furnace casing and communicating at one end with said stack connection,
and branch pipes or flues fitted at one end in the flue openings in the top of the
cremating chambers and connected at their other ends with said common escape
flue or pipe substantially as set forth.
15. In a crematory, the furnace casing having a plurality of interior com-
municating cremating chambers, garbage supporting and fire grates arranged one
above the other in said cremating chambers, roadways or dump floors arranged
longitudinally of the casing at opposite esides thereof, and provided with trap
doors, and feed chutes extending from said trap doors through the sides of the
cremating chambers above the fire grates therein and below the planes of the
garbage grates, substantially as set forth.
1000
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.