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Патент USA US2128820

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2,128,820
Patented Aug. 30, 1938
Í " >`->UNITED ’_ STATES
_PATE-NT »porri-ce
2,128,820 ' l'
FURNACE
Ireneus 'Basil Holtz, Ashviile, Pa.
Applicationv February 10,1938, Serial No. 189,859
7 claims. (ci. 122-135)
y This Vinvention relates toffurnaces of the hot
water, steam or vapor type. `
'
' f
In conventional furnaces of the round or ls’cniare
type the hot fuel and the hot gases of combus
5 tion cannot transmit the heat units to the side
walls very effectively so that the greater portion
of the heat units must be dispensed through the
upper regions of the furnace to the heating fluid
which lis circulated in the boiler whereby too
great a quantity of the heat units are lost in the
flue and chimney.
It is an object of the present invention tok pro
vide an elongated furnace which is substantially
- « triangular in horizontal section with a relatively
15 deep iirebox so „that the heat units are not only
transmitted to the heating fluid in- headers or
2 .c
>coils which form a tortuous path for the hot
gases of combustion but are also transmitted to
the fluid along the extended side walls of the
furnace whereby a maximum utilization of the
BV. t. u.’s ís had.
Another object ofthe invention is the provi-_
sion of a furnace which is substantially triangu
lar in horizontal section and which has a hollow
Ul dome in communication with a header suspended
below the dome to provide a tortuous path for
the hot gases of combustion not only below the
header but around the longitudinal side edges
thereof and also above the header, the suspend
3K0' ingmeansvfor the header being hollow` for plac
ing the dome in communication with the header,
while the suspendingmeans provides an elon
gated discharge channel for the hot gases of com
bustionand this channel is connected to the flue,
35v hollow members 'extending from the side walls of
the lelongated furnace and having their inner ends
spaced from each other to provide a restricted
_
passage for the hot gases of combustion from the
iirebox to an elongated flat passage below the
40 header, said members being in communication
with the dome and with coils forming the side
walls of the furnace to not only provide for a con
tinuous and complete circulation of the iiuid but
to provide for a maximum heating surface in the
45 furnace.
A still further object ofthe invention is the
provision of a furnace which is substantially tri
angular in cross section in which a plurality of
_ heating units are spaced from each other to pro
50 vide a tortuous path for the hot gases of com
bustion from the flrebox so that the gases will
travel at times from one end of the. furnace to
the other before they are discharged in» the‘usual
flue, the top of the firebox including a pair of
55 elongated members extending from the side walls
of the furnace towards each _other with their
inner ends spaced from eachother to provide a
restricted passage for the escape ofhot gases
from the Firebox, said passage being progressive- „
ly expanded frornthe front endV to the rear end
of the furnace.
'
'
’
.
This invention will be best understood from a
consideration of the following detailed descrip
tion, in view of the accompanying drawing form
ing a part of the specification; nevertheless, it is
to be >understood that the invention is not con
ñned to the disclosure, being _susceptible of such
changes and modifications as define no material
departure from the salient features ofv the in
vention as expressed in the appended claims.
Y In the drawing:
,
Figure l is a vertical section taken along the
line i-I of Fig. 2,
.
,
, Figure 2 is a horizontal section taken along the 20
line2m'2 of Fig. 1, and
V ,
' ,
`>
y,
'v Figure 3 is a’vertical longitudinal section `taken
along the line l5_3 ofvFig. 1. `
.
`
Referring >more, particularly to the drawing,
lil designates generally a shell or housing `of the
furnace which is formed in sections, as shown atY 5
Il in Figs. 2 and 3 and these sections are con
nected- together throughout the length of' the
furnace in the usualmanner by the well known
form~ of, conventional nipples although such nip
ple construction has not been illustrated.
30..
, These sections rare hollow to provide chambers K
l2 for a fluid which is heated for creating a cir
culation of either hot water, steam or vapor as
the case may be. `The sections li are sho-wn as
'being vertically dispos-ed‘although they may in- 35
clude horizontal sections of the conventional
type.
.
`
.
A grate l5 is supported from the side Walls of
the> furnace and thereby divides the main body
of the furnace into a ñrebox i6 and an ash pit
l1. The ñrebox is relatively deep- so that the hot
coals I8 will not only be in contact with a large
surface area of the side walls of the furnace but
alarge heating surface will be presented to the
hot gases of combustion.`
'
45
A vpair of hollow members 20 and 2lY project
from the side walls of the furnace and form the
top of the ñrebox. These members -are hollow
to> provide chambers- 22 which are in communica
tion with the chambers I2 inthe side walls while
o.. y
the tops 23 of these members are'liiat. Theirr
underfaces, as shown at 24, are curvedto form
the top wall of the ñreboX. 'I‘he inner reduced
ends 25 are spaced from each otherl to provide a
central passage 26 which connects the ñrebox i6 55
2
2,128,820
with a ñat elongated passage 21 below a header
ff- f“ L
water, spaced channel members connecting the
28. This passage 26, as shown in Fig. 2, is pro
gressively .expanded from the front end to the
rear end so that the wider portions of the pas
dome with header and suspending the header
from the dome, said channel members being
spaced from thefront wall of the housing and
sage are located in the reduced end 29 of the
furnace and adjacent a ñue 30.
forming a discharge passage for the products
of combustion.
A hollow dome 3| covers the top of the fur
nace and isjin communication at its side'eges
2. VA furnace comprising a housing which is tri
angular in plan, a grate section, a top section
with the vertical chambers |2 in the side walls o
above the grate and formed of members project- Y
the furnace.
ing towards each other from the side walls of
the housing, the adjacent edges of said member
'
The header 28 is suspended from the'dome 3|
by means of elongated hollow hangers 35 where
being spaced from each other to provide a re- A
by the header 28 is placed in communication with. , lstricted passage for the hot products of com
the dome 3|` by means of the restricted passages
36.
bustion, Vsaid passage being expanded from the
These hangers in connection with the upper , ' front end toI the rear end, a header for Water lo
15
surface 3'! of the header 28 and the bottom wall'V cated above the members and having the side
of the dome 3| form a channel 39 which is con-V edges spaced'from the side Walls of the housing
nected with the fiue 30 at its rear end while it
to permit` the products of combustion to passV
is in communication with elongated chambers 40 around the edges, a dome for water, spaced chan
formed by the header 28, the hangers 35 and the ' nelfmembers connecting the dome with the head 20
bottom wall of the dome 3|. These passages 40, Y er and suspending the head from the dome, said
extend longitudinally of the furnace and are
channel members being spaced` from the -front
adapted to carry the hot gases of combustion wallY of the housing and forming a discharge pas
from the fiat passage 21 to theforward end of sage for the products of combustion.
the exhaust channel 39. Y ,
3. A furnace comprising a housing which is 25
It will be noted that the longitudinal side edges triangular in plan, a grate section, a top section
4| of the header 28V are spacedl from the side above the grate and formed of members project
walls of the furnace to provide restricted pas
ing towards each other from the side wallsv of the
sages 42 which extend longitudinally of the fur
housing, the adjacent edges of said members be
nace but which converge towards each other atV ing spaced from each other to provide a restricted 3.0
the rear end 0f the furnace.
passage for the hot products of combustion, the
vA door 45 is hingely mounted at 46 on the passage extending centrally and throughout the
front Wall_of the furnace and closes an opening
length of the housing and being progressively eX
4'| formed in the front Wall 48 whereby the fire
panded through the length thereof, a header for
35 box I6 is charged with fuel.
water located above the members'and having the
While I have shown that the ñrebox in this
side edges spaced from the side Walls of the hous
instance is charged with coal it will be appre
ing to permit the products of combustion to pass
ciated that either gas or oil may be utilized for
around
the edges, a dome for water, spaced chan
fuel as is well known in the art.
'
'
nel members connecting the dome 'with the head
It will be noted that the hangers 35 have their er and suspending the header from the dome, 40
40
45.'
forward ends 50 spaced from `therfront Wall
48'of the furnace to provide restricted passages
5| to permit the> hot gasesïfrom the passages 40
to enter the longitudinal discharge channel 39.
Vsaid channel members being spaced from the
In view of the fact that the furnace is trian
triangular in horizontal section, aV ñue,'a grate
section, a hollow domeV covering the top of' the
gular in horizontal section the header 28 will
likewise be approximately triangular as will be
the members 20 and 2|. The grate | 5 likewise
Willrbe substantially triangular with the Wider
50i portions of these members located at the front
end of the furnace.
l
front wall of the housing and forming a discharge
passage for the products of combustion.
4. A furnace comprising a housing which Vis
housing, a header suspended from the dome and
having the side edges spaced from the side walls
of the housing to provide passages for the prod
ucts of combustion, spaced means for suspending 50
the header andY forming in connection with the
In this type of construction large heating >sur
header and dome a discharge passage for the
faces are presented to the hot gases of combus
. products of combustion to the flue, hollow de
tion and to the flame or fuel in the firebox while
55 a tortuous path is provided for the hot gases
throughout the furnace in order to delay the
passage of the gases whereby they will come in
contact` with the maximum heating surfaces for
the ñuids in the various coils or header.
.- At .6_8 isy shownA a section nipple. A number of'
thev nipplesY are employed for placing the various
sections ofthe domein communication with each
other.
I claim.:
65
,
1. A furnace comprising a housing which is
triangular in plan, a grate section,»a top section
flectors in communication with the header pro
' jecting Vtowards each other from the side walls`
of the housing and located between the grate and
.55
the header, the walls of the housing including
YWater chambers in communication with the head-V
er, dome and deñectors.
'
5. A furnace comprising a housing which is tri
angular in horizontal section, a flue at the rear
end of the housing, a grate, adorne covering the
tol
top. of the housing, deflectors extending from the
side walls of the housing and having the adjacent
edges spaced from each other to provide an elon
gated central passage' for hot gases of combus
tion, a header, means suspending the header
above the grate and formed of members project
ingtowards each other from the side walls of the Y from the dome in spaced relation with the de
housing, the adjacent edges of said member being flector, said header having the side edges spaced
spaced «from each other to YprovideY a restricted
passage lfor the hot products ofV combustion, a
header for Water located above themembers and
having the side edgesspaced from the side walls
of the housing to permit the products of com
15; bustion to passY around the edges, a domev for
from the side walls of the housing to provide 70
elongatedpassages, the suspension means form
ing a channel between the dome and header,
said channel opening at the rear end thereof into
the `ilue, the front endY of the channel opening
into theV space above the header, said passages 75
3
`2,128,820
and channel forming a tortuous path’for the hot
gases of combustion between the ñrebox and the
flue.
'
6. A furnace comprising a housing which is
CII
triangular in horizontal section, a flue at the rear
end of the housing, a grate, a dome covering the
' top of the housing, deilectors extending from
the side walls of the housing and having the ad
jacent edges spaced from each other to provide
an elongated central passage for hot gasses of
combustion, a header, means suspending the
header from the dome in spaced relation with
the deflectors, said header having the side edges
spaced from the side walls of the housing to pro
f vide elongated passages, the suspension means
forming a channel between the dome and header,
said channel opening atthe rear end thereof into
the ñue, the front end of the channel opening
into the space above the header, said passages
and channel forming a tortuous path for the hot
gases of combustion between the fìrebox and the
flue.
7. A furnace comprising a housing which is tri
angular in horizontal section, a `fiue at the rear
end of the housing, a grate, a dome covering the
top of the housing, deflectors extending from the
Y side walls of the housing andhaving the adjacent
edges spaced from each other to provide an elon
gated central passage for hot gases of combus
tion, a header, means suspending the header from
the dome in spaced relation with the deñector,
said header having the side edges spaced from 10
the side walls of the housing to provide elongated
passages, the suspension means forming a chan
nel between the dome and the header, said chan
nel opening at the rear end thereof into the flue,
the fro-nt end of the channel opening into the 15
space above the header, said passages and chan
'nel forming a tortuous path for the hot gases of
combustion between the ñrebox and the flue, the
underfaces of the deflectors from the inner edges
thereof being curved downwardly towards the 20
side walls of the housing.
'
IRENEUS BASIL HOLTZ.
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