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Патент USA US2136175

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Nov. 8, 1938.
W. WAUDBY
2,136,175
BOILER
Filed Oct. 5, 1955
2 Sheets-Sheet l
mV E NT.m.
ATTORNEY.
Nov. 8, 1938.
W. WAUDBY
2,136,175
BOILER
Filed Oct. 5, 1935
2 Sheets-Sheet 2
NIMH
INVENTOR.
’£05 ATTORNEY.
2,136,175
Patented Nov. 8, 1938
PATENT OFFICE'
UNITED STATES
2,136,175
BOILER
Walter Waudby, Boulogne sur Seine, France, as
signor to American Radiator Company, New
York, N. Y., a corporation of New Jersey
Application October 5, 1935, Serial No. 43,693
In France October 1l, 1934
3 Claims.
(Cl. 122-210)
Myinvention relates to improvements in heat
ing apparatus, and the same has for its object to
provide a simple, efficient and inexpensive means
for conveniently converting a boiler originally de
signed for burning solid fuel into a boiler for burn
ing liquid or gaseous fuel.
Further, said invention has for its object to
provide a cast iron sectional boiler with a sepa
rate fuel receptacle or combustion chamber which
may be readily applied to a boiler and fitted into
the ordinary or usual fuel receptacle and com
bustion chamber forming part of the boiler.
Further, said invention has for its object to
provide a sectional cast iron boiler with a sheet
steel fuel receptacle and combustion chamber
which may be readily applied to a boiler whereby
to render the same capable of eñiciently burning
liquid or gaseous fuel.
Further, said invention has for its object to
20 provide a boiler with a separate sheet metal fuel
receptacle and combustion chamber which may
be readily introduced through the fire door open
ing, or a specially provided opening in one end
section of the boiler, and secured at its forward
lo Li or outer end to, and be supported by said end
The said refractory lining inside the combustion
chamber radiates heat back to the flame, and
maintains a very high combustion temperature
and permits of the volume of the separate fuel
receptacle and combustion chamber to be con
siderably smaller than the corresponding volume
required in ordinary sectional boilers.
Other objects will in part be obvious and in
part be pointed out hereinafter.
To the attainment of the aforesaid objects and 10
ends my invention consists in the novel features
of construction, and in the combination, connec
tion and arrangement of parts hereinafter more
fully described and then pointed out in the claims.
In the accompanying drawings
Figure l is a front elevation showing one form
of boiler constructed according to, and embodying
my said invention;
Fig. 2 is a central, longitudinal section on the
line 2-2 of Fig. 1, and
20
Fig. 3 is a transverse section on the line 3-3 of
Fig. 2, illustrating one form of means for movably
supporting the inner or rear end of the separate
fuel receptacle and combustion chamber.
In said drawings Ill designates a cast iron boiler 25
section.
of ordinary general construction designed for
house heating purposes, enclosed by a jacket Ill“,
a separate sheet steel fuel receptacle and com
and comprising a series of vertical sections in
cluding a front section II, a back section I2,
and a plurality of right and left half intermedi 30
Further, said invention has for its object to
provide a cast metal or other form of boiler with
bustion chamber carrying at its forward or outer
end an oil burner.
Further, said invention has for its object to
provide a cast iron sectional boiler with a sepa
rate, double-walled fuel receptacle and combus
Ll tion chamber which communicates with the main
fuel receptacle and combustion chamber, and
whose water-containing wall portions are con
nected toand communicate with the water spaces
or passages of the cast iron boiler sections.
Further, said invention has for its object to
provide a cast' iron sectional boiler, with a sepa
rate water backed steel or wrought iron fuel re
ceptacle and combustion chamber, in order to
protect the cast iron sectional boiler from the
direct action of the fiame. The said separate
combustion chamber being made of steel, is better
able to withstand the severe stresses set up by the
sudden heating and cooling, incidental to the op
eration of thermostatically controlled automatic
burners, especially when burners are badly ad
justed or regulated.
Further, said invention has for its object to
provide a cast iron sectional boiler with a sepa
rate water backed steel fuel receptacle and com
55 bustion chamber lined with refractory material.
ate sections I3 communicatively connected at
their upper and lower ends by nipples I4, I5, re
spectively. The back section I2 is provided at its
lower edge with inlet or return ports I6 connected
together by a manifold I1 communicating at IB 35
with the return pipe I9 of the heating system, and
both front section I I and back section I2 are pro
vided at their upper portions with outlet or ñow
ports 20 connected by manifolds 2 I , communicat
ing at 22 with the flow pipe or riser 23 of the 40
heating system.
The back section I2 is provided at its lower
portion with smoke outlets 24 communicating
with the main fuel receptacle and combustion
chamber 25, and over said outlets 24 is secured a 45
smoke hood 26 provided with a damper 26a.
The front section I2 is provided in its lower
portion with a larger opening 21 over which is
secured by bolts 2B a cover plate 29 having a cir
cular opening 3i! therein in which is fitted the 50
forward, projecting end of an inner fuel receptacle
and combustion chamber which is preferably
made in the form of a double-walled tubular
member 3| formed of sheet steel. The said tubu
lar member is provided near its forward end,
2
2,136,175
within the body of the boiler, and directly to the
rear of the cover plate 29 with hollow extensions
32, 32“ from which extend forwardly short pipe
sections 33, 33a, respectively. To the lower pipe
section 33“L is connected one end of a return pipe
34 whose other ends extend downwardly and are
connected to the front section Il of the boiler
adjacent its lower end and communicate with the
Water-space thereof, and to the upper pipe section
33 is connected one end of a flow pipe 34a whose
other ends extend diagonally upward and are
connected to said front section || adjacent its
upper end and likewise communicate with the
water space of said front section ||.
'I'he extreme forward, projecting end of the
tubular member 3| is tapered at 35 to form a
reduced opening 36 over which is fitted a plate
3'! carrying the nozzle 38, and directly associated
parts of an oil burner 39 of any convenient or
20
desired type.
The tubular member 3| is substantially co
extensive in length with the interior of the
boiler, and has the lower side of its inner end
cut away to form an outlet 4U, the width and
25 length of which may be increased or decreased in
accordance with the type of the boiler to which
the tubular member 3| is applied, or the pur
poses for which the boiler or furnace is to be
used. The said outlet 40 permits the hot gases
30 and products of combustion to pass from the
interior of said tubular member 3| to the main
fuel receptacle and combustion chamber 25 of
the boiler, and over the outer sides of said tubular
member 3| to and into the boiler iiues 4|, and
finally to the smoke outlets 24.
The inner side of the tubular member 3| is
provided with a refractory lining 42, and the
inner side of the back section I2, is also provid
ed with a facing of refractory material 43 to
40 protect the same from the hot gases impinging
thereon. Similar linings 44, 45 may be provided
at the side walls and flow respectively, of the
ash pit 46.
In order to movably support the inner end of
45 the tubular member 3| during the periods of ex
pansion and contraction thereof, the said end is
provided upon its opposite under side portions
with brackets 41 Whose lower ends are slidably
supported upon angle iron rails 48 mounted upon
50 the trunnions 49 of the boiler sections which are
designed ordinarily and normally to support the
grate bars employed for burning solid fuel.
The operation of the boiler will be obvious from
the foregoing description.
55
It is to be noted that while I have illustrated
and described my invention in connection with
a sectional, cast iron boiler that the same is not
limited thereto as the same is equally applicable
to other forms of boilers.
60
For convenience of description the enclosed
space 25 of the boiler which normally constitutes
the fuel receptacle and combustion chamber of
the boiler is specified in the specification and
claims as the “main fuel receptacle and com
65 bustion chamber" in order to distinguish the
same from the tubular member 3| located there
in, and in which combustion initially takes place.
Having thus described my said invention what
I claim and desire to secure by Letters Patent is:
1. A sectional cast iron boiler including a front, C1
a back and a plurality of intermediate sections
communicatively connected and enclosing a main
fuel receptacle and combustion chamber, a dou
ble-Walled, water-backed tubular sheet metal
member constituting a separate fuel receptacle
having its forward end supported by and ex~
tending through said front section, and its inner
end free and extending into said main fuel re
ceptacle and combustion chamber and terminat
ing adjacent the said back section, said tubular
member having its walls arranged in spaced rela
tion to the interior of said main fuel receptacle
and combustion chamber and communicating at
its inner end therewith, means for yieldingly sup
porting the free inner end of said tubular mem
ber, and pipe sections connecting the water
backed walls of said tubular member with the
water-spaces of said front section.
2. A sectional cast :iron boiler including a
front, a back and a plurality of intermediate
sections communicatively connected and enclos
ing a main fuel receptacle and combustion cham
ber inwardly-extending projections on said in
termediate sections, a double-walled, water
backed tubular sheet metal member constituting ‘
a separate fuel receptacle having its forward end
supported by and extending through said front
section, and its inner end free and extending into
said main fuel receptacle and combustion cham
ber and terminating adjacent the said back sec 35
tion, said tubular member having its walls ar
ranged in spaced relation to the interior of said
main fuel receptacle and combustion chamber
and communicating at its inner end therewith,
brackets secured to said tubular member adja 40
cent to its inner end and movably supported
upon said inwardly extending projections, and
pipe sections connecting the Water-backed walls
of said tubular member with the water-spaces
of said front section.
3. A sectional heating apparatus of the char
acter described including a double-walled, wa
ter-containing front section having an opening
therethrough, a double-walled, Water-containing
tubular member formed independently of the „
apparatus and disposed therein with its walls
arranged in spaced relation to the inner walls
of said apparatus; said tubular member having
its forward end fixedly secured to and extending
through the opening in said front section and its
inner end provided in its under side with an out
let communicating with the interior of the ap~
paratus: said inner end being disposed freely
within the apparatus to permit of expansion and
contraction, and flow and return pipes communi
catively connecting the water-backed walls of
said tubular Water-containing member at its for
ward end with the water space of said front
section exteriorly thereof.
WALTER. WAUDBY.
65
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