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Патент USA US2105453

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Jan. 11, 1938.
Filed April 27, 193:5
5 Sheets-Sheet 1
Jan. 11, 1938.
' Filed April 27, 1935
3 Sheets-Sheet 2
Jan. .11, 1938.
Filed April 27, 1933
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Patented Jan. 11, 1938
Lewis W. Eggleston, Detroit, Mich., assignor to
Detroit Lubricator Company, Detroit, Mich., a
corporation of MichigaII
Application April 27, 1933, Serial No. 668,177
v5 Claims. (Cl. 137-139)
Myinvention relates to new and useful improve
tened to the arm M by screws IT, or the like.
ments in heating apparatus, and more particu
pipe I5 is supplied with fuel from a conduit
larly to an apparatus or system for controlling l53 and
is branched at its upper end to provide
flow of ?uid fuel to a heating burner.
substantiallyparallel terminal end portions l8, [9,
An object of my invention is to provide a sys
with the portion l8 overlying the portion i 9. The
tem in which the heating burner is controlled portion I 8 supports a controlling pilot burner 20
through the medium of a controlling pilot burner. which is supplied with fuel therefrom by the pipe
Another object is to provide in such a system or I 5. Extending from the portion l9 and supported
‘ apparatus means for igniting the controlling pilot thereby, there is an upwardly inclined igniter
10 burner.
tube 2| which lies beneath the pilot burner 28
Another object is to provide a novel valve for and which terminates at its upper end closely ad 10
controlling ?ow of fuel to the heating burner.
jacent to the pilot burner 9. The upper end of
The invention consists in the improved con
the tube 2| is closed and sealed by a plug 22,
struction and combination of parts, to be more and in the top face of the tube 2! there is a longi
fully described hereinafter and the novelty of
which 'will be particularly pointed out and dis—
tinctly claimed.
tudinally extending series of burner ports 23.
These ports are closely adjacent to one another
and extend from the burner 9 to the burner 20.
In the accompanying drawings, to be taken as
a part of this speci?cation, I have fully and clear
ly illustrated a preferred embodiment of my in
Flow of fuel through the pipe l5 to the pilot
burner 20 and the-igniter tube 2| is controlled by
vention, in which drawings—-
preferably electrically operated and of the sole
noid type having its coil supplied with current
by the lead wires 25, 26. Operation of the valve
24 is preferably controlled by a thermostatic
Figure 1 is a view in front elevation of a
burner controlling apparatus embodying my in
Fig. 2 is a view of the apparatus in side eleva
tion, having certain parts broken away;
Fig. 3 is an enlarged detail view in section on
the line 3-3 of Figure 1;
Fig. 4 is a view in section on the line 4-4 of
Fig. 3, and
Fig. 5 is a detail view in section on the'line
5-5 of Fig. 4. ‘
Referring to the drawings by characters of
reference, I designates generally a supporting
a framework having a vertical frame member or
upright 2, to which is adjustably secured a for
wardly extending bracket member 3. A main ‘fuel
supply conduit or pipe 4 is supported by the
a valve 24 in the conduit I53”. The valve “is
switch 21 which may be of any desired construc
, tion inserted in the lead wire 25 in series circuit
with the solenoid coil.
The valve 1 comprises a casing 28 having
chambers 29 and 38 therein which are separated
by an internal wall or partition 3| through which
there is an aperture 32. The chamber 29 has an 30
open side which is closed and sealed by a plate'
member 33 secured'to the casing by screws 34.
A gasket, or the like, 35 may be provided to seal
the joint between the plate member 33 and the
casing 28. Projecting from the outside face of,
the plate member 33 there is an elongated tubu
lar outlet member 36 having a longitudinal open
member 3 and preferably seats in -a recess 5 ended bore 31 therethrough which opens at its
40 formed in the top face thereof. The main pipe 4
inner end through an outlet port or aperture
has a branch pipe or riser 6 communicating there
in the plate member 33 into the chamber 29. 40
with and supported thereby. The branch pipe 6 The
outlet member 36' extends into the bore of a
‘ supports a valve 1 which controls _?ow of fuel from sleeve member 38 carried by the inlet end of the
the pipes 4 and 6 to a main heating burner 8. A - mixing tube 39 of the main burner 8. The mix
pilot burner 91s positioned adjacent the main ingv
tube 39 is provided with air inlet ports 40
burner 8 and serves to ignite the same. Thisv which are controlled by a valve plate 4| adjust 45
lpllot burner 9 is supplied with fuel by means of ably screw-threaded upon the sleeve member 38.
a pipe line or conduit In which is supported, as - The free end of the outlet member 36 is pro
at III‘, by a horizontal laterally extending frame vided with a ported plug 42 having a nozzle aper
50 member ll having a ?ange Ila secured to the up
ture 43 therethrough for discharging the gas orv
‘per end of the upright 2. The conduit l0 ter
other ?uid fuel into the mixing tube 39. At its
minates at the pipe 6 and has its end secured and vinner end‘ the bore 31 is of enlarged internal di
sealed in an outlet port l2 in the pipe 6. The ameter, as at 44, to provide an annular recess
conduit to is preferably provided with a. control having
an inward facing shoulder 45.i,_i_Positioned
, valve I: for regulating the size of the pilot ?ame in the recess
44 and seating against the shoulder
at the burner .9. The frame member 2 has a 45 there is an annular valve seat member 46 hav
laterally extending supporting arm l4 which lies ing a port 41 therethrough. The member 46 ex
beneath the frame member H and to which a‘ tends into the chamber 29 and has its inner end
supply pipe I6 is rigidly secured, preferably by‘ portion beveled, as at 48, to provide a valve seat.
lugs or ears i6 rigid with the pipe I5 and fas
Within the chamber 29 there is a valve member
2, 105,453
which is seated one end of a coil spring ‘I5.
The spring ‘I5 surrounds the plunger member
49 which cooperates with the‘ seat 48 and which
is supported for universal movement by one end
of an operating member or lever 59. The valve
‘I3 and at its other end engages a packing disc
or ring 11 seating on the wall 3|. In the ‘wall
3| there is an annular packing material recess
‘I8 which opens into the chamber 39 and which
surrounds the free end of the plunger member
‘I3. The recess ‘I8 contains suitable packing ma
terial which serves to seal the aperture 32 around
member preferably comprises a valve disc . 5|
tightly clamped between opposed peripheral
?anges on hollow nut and screw members 52, 53.
Within these hollow members there is a support
ing pin 54 having a conical head or end portion
which seats against the member 53 and which is
. the plunger ‘I3 and which is held in the recess 10
10 normally held thereagainst by a coil spring 55 and under compression by the packing ring ‘ll
surrounding the pin 54 and held under compres
and the spring ‘I5. The plunger member 13 has
a longitudinal bore ‘I9 in which an operating
sion'between the nut member 52 and the head of
the~ pin 54. The pin 54 projects through an
aperture in the nut member 52 and is rigidly _ member 89 is reciprocably mounted. The mem
as at 55, to the lever 59. Adjacent its other ‘ ber 89 projects from the end of the plunger mem
ber ‘I3 and is normally held in‘ its outward or
end the lever 59 has substantially parallel op
posed ?anges 51 projecting from the side edges extended position by a resilient cushioning spring
of the lever and toward the plate member 33. 8| positioned in the bore ‘I9. Outward movement
of the member‘ 89 is limited by a head portion
The ?anges 51 are provided with aligned aper
82 cooperating with an annular shoulder in the
20 tures to receive the end portions of a supporting bore ‘I9. The member 89 extends into the cham
shaft 58 which-is mounted in substantially par
allel spaced lugs‘ or ears 59 projecting from the ber 29 for cooperation with the lever 59 and is
inside face of the plate member 33 and positioned operable upon‘ expansion of the chamber 58 to
between the ?anges 51. The shaft 58 serves as engage the lever 59 on the opposite side of shaft,
58 from the valve member 49. The member 99
25 a fulcrum for the lever 59 so that the valve is preferably provided with a conical end por
member 49 is pivotally supported for movement
toward and from’ its seat. The valve member tion adapted to seat in a'conical recess 83 formed
49 is normally urged toward closed position by in the lever 59., Through the plate member 55
a’spring 59 which is coiled about the shaft 58 there is a passage 84 which opens at one end into
the chamber 58 and which at its other end opens
the lugs 59 and which has its end por
into a passage 85 in a boss 85 projecting from
tions engaging the inside face of the plate mem
ber 33 and the underside of the lever 59 on the the plate member 55. The passage 85 connects
opposite side of the lever fulcrum from the valve to a tube '81 which ‘extends to the controlling
pilot burner 29. The free end portion of the
member 49.
Through the wall of the casing 28 there is an tube 81 serves as a bulb element, preferably being
wrapped or coiled, as at 88, around the burner
29 and is secured in position by a clamp 89. The
tube 81 and chamber 58 comprise a power-means
or thermostat and are charged with a. suitable
internally threaded bore 5| positioned above the
chamber 39 and opening into the chamber 29,
being preferably aligned with the bore of‘, the
outlet member 35.
Adjustably screw-threaded
volatile liquid which will expand and contract in to‘
response to change of temperature. After the . '
stem within the chamber 29 there is a head por- , tube and'cliamber have been charged, the end of
tion 53 cooperable with the lever 59 and-serving the tube 81 is closed and sealed, as at 99. The
as a stop or abutment member to limit opening casing 28 has a depending tubular extension 9| 45
which provides an inlet passage to the chamber
45 movement of the valve member 49. The bore
29.‘ The extension 9| seats on and communicates
5| is sealed around the stem 52 by packing ma
terial 54 held under compression by a packing with the branch pipe 5to which it is secured by
nut or sleeve '55 screwl-threaded in the. outer end a sleeve nut 92. .
r The operation of my apparatus is as follows:
of the bore 5|. It may be noted that the stem
52 may be screwed inwardly so that. the head . The pilot burner 9 is ignited andthe size of
.40 in the bore 5| there is a stem 52 having its ends
projecting from the bore.
On the end of the
portion 53 will engage the lever 59 and hold the
valve member to; its seat to prevent ?ow through
the ?ame is regulated by the valve I3 ‘so as, to
provide sumcient ?ame to ignite the main burn
I er8andthegasissuingfromtheports23 inthe
The chamber'39 has an open side which is
closed and sealed by a. plate member 55 which is
' substantially parallel to the plate member 33
and which is secured to the'casing by screws 51.
Within the chamber 39 there is an 'expansible
collapsible pressure responsive chamber 58 pref
erably formed ‘by a substantially cylindrical metal
bellows 59' having one end secured and sealed,
'as at ‘I9, in an annular groove or recess formed
in the inside face’bf the plate member 55. The
other end of the bellows is closed and sealed by a
head member or end wall ‘II having a reentrant
» portion ‘I2 which extends into the chamber 58
and cooperates with the plate member 55 to limit
collapseof the bellows 59. The head member ‘I|
rigidly supportsa plunger or- operating'member
‘I3 which is preferably screw-threaded or. other
igniter tube ~2| . If the thermostat 21 now closes
the circuit through the valve 24 to permit ?ow
through the conduit |5I to the pipe l5, the gas
will ?ow ‘through the igniter tube 2| and also be
discharged from the pilot burner 29. The gas
issuing from the ports 23 in the igniter tube will '
be ignited adjacent the constantly burning pilot 60
‘9, and due to the close proximity of~the ports
23 the ?ame will carry down the tube 2| until the
gas issuing from the ports '23 adjacent the
burner 29 is-ignited, when the burner 29 will be
ignited thereby. Ignition of the burner 29 will 65
heat the volatile ?uid in the coil or bulb 88 and '
create a pressure transmitted through the tube
81 into the chamber 58. The pressure._;thus cre
ated in the chamber 58 wilhexpand the, bellows
59 against the foree of spring ‘I5. As the plunger 70
wisesecured in a substantially cylindrical recess ' member ‘I3 moves outward-rand into the chamqj _.
14 in the member ‘II and portion ‘I2. Adjustably ' ber 29, the operating member 85 will engage the-'7 ‘
screw-threaded on the plunger member 13 there
is an abutment member ‘I5 preferablyin the form
75 of a sleeve having an annular ?ange against
lever 59. Continued movement of the plunger
member ‘I3 as spring ‘I5 collapses will rotate the
lever 55 about the slntt 58,-overcoming the light
spring 60 and moving the valve member 49 to
ward open position. Opening of the valve mem
ber 49 will permit gas to ?ow through the valve
1 into the mixing tube 39 where the gas will be
mixed with the proper proportion of air for burn
ing at the main burner 8. The gas supplied to
the main burner 8 will be ignited by the con
stantly' burning pilot burner 9. When the sole
noid valve 24 is closed by breaking of the circuit at
10 the thermostat 21, for example, the supply of gas
to the controlling pilot burner 20 and the igniter
tube 2| will be cut o?. Extlnguishment of the
pilot burner 20 will permit the coil or bulb 88 to
cool and thereby relieve the pressure in the
chamber 68 so that the spring 16 will retract the
plunger member ‘I3 and its operating member 80
from the lever 50 to permit the spring 60 to move
the valve member 49 to closed position. The ex
tent to which the valve member 49 can be opened
may be regulated by the position of the head por
tion ‘63. If the valve member is limited in its
opening movement by engagement of the lever
50 with the portion 63 before the chamber 68
has reached its limit of expansion, then the spring
8| will permit relative movement between the
member 80 and the plunger member 13 so that
the plunger member 13 can continue to move
without injuring the parts of the valve.
What I claim and desire to secure by Letters
Patent of the United States is:
1. In an apparatus of the character described,
a hollow casing having a partition dividing said
casing internally into a longitudinal chamber
having relatively transversely directed inlet and
transmit movement from said responsive means
to said lever, a spring resisting movement of said
lever, and a coil spring surrounding said plunger
and resisting movement of said responsive means.
3. ‘In an apparatus of the character described,
a casing containing a partition dividing said cas
ing into separate chambers, one of said cham
bers having an inlet, a removable'plate member
closing a side of said one chamber and having an
outlet port, a valve member in said one cham 10
ber cooperable with said port and controlling
?ow therethrough, a lever carried by said plate
member and operatively connected to said valve
member, said partition having an aperture in
registry with one end of said lever, a plunger, an 15
adjustable abutment member in the other of said
chambers and longitudinally movable along said
plunger, a coil spring in the other of said cham
bers and held under compression between said
partition and said abutment member, said plung 20
er extending through said aperture and being
adapted to engage said lever end to move said
valve to open position, and a packing medium
surrounding said plunger and positioned in said
other chamber to seal said aperture whereby to 25
prevent ?uid communication between said cham
4. A valve of the character described, com
prising a hollow casing having an inlet and an
outlet and containing a valve port, a lever ful 30
crum in said casing, a valve member carried by
said lever and cooperating with said port to con
trol ?ow through said casing, a wall of said cas
inghaving .an aperture therethrough register
outlet ports and a substantially cylindrical ,cham- - ing with said port, an adjustable stop member
ber positioned intermediate said inlet and out
let ports and with its longitudinal axis substan
tially parallel to the axis of said outlet, a valve
member in said longitudinal chamber and cooper
40 .able with said outlet to control ?ow through said
longitudinal chamber, a lever operatively con
nected to said valve member and extending longi
tudinally of said longitudinal chamber and into
proximity to said outlet port, said partition hav
screw-threaded into said aperture and project
ing at its opposite ends into and from said cas
ing, the inner end ‘of said stop member cooper
ating with said valve member to limit opening
movement thereof and to move said valve mem
ber to closed position, theremostatic means co
operable with said lever to actuate said valve
member, and a lost-motion connection between
said thermostatic means and said valve member
whereby said stop member can‘move said valve
member to closed position irrespective of the op-'
ing an aperture therethrough coaxial with said
outlet and in overlying relation to the end of
said lever, a plate member closing and sealing said
other chamber and having pressure responsive eration of said thermostatic means.
5. A valve of the character described, compris
means sealed thereto, a plunger extending through
ing a casing having a ?at open side, a ?at clos
said aperture and operable to transmit move
ment from said responsive means to said lever, ure plate secured to and closing said open side,
and a coil spring surrounding said plunger, said an annular valve seat member projecting from
said closure plate and de?ning a valve port, a.
spring abutting said partition and resisting move
valve member seating on said seat member to
ment of said responsive means whereby to regu
prevent ?ow through said port, supporting lugs
late the operation of said valve member.
2. In an apparatus of the character described, ‘projecting from said closure plate and carrying 55
a hollow casing containing a partition dividing a bearing member, a lever having side ?anges
said casing internally into separate chambers pivotally supported on said bearing member, a
having oppositely directed open sides, one of said spring surrounding said bearing member between
chambers having an inlet opening through a side said ?anges and held .under compression between
said closure plate and said lever whereby to urge 60
wall thereof, a plate member closing and seal
ing the open side of said one chamber and having said valve member to closed position, said lever
an outlet aperture, a valve member in said one having a recess intermediate said ?anges, a
chamber controlling ?ow through said aperture, plunger projecting into said casing and engage
able in said recess to move said lever toward open
a lever supported by said plate member and oper
atively connected to said valve member, said position, temperature responsive means to move 65
partition having an aperture connecting said said plunger into engaging relation with said
lever, and an adjustable stop' member threaded ,
chambers, a closure member for the open side through a wall of said casing and Acooperable with
of said other chamber, pressure responsive means the valve carrying end of said lever to overcome
in the other of said chambers and carried by said said spring and move said valve to closed posi
closure member, a plunger having a lost-motion tion.
means reciprocably supported in and projecting
through said aperture and being operable to
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