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Патент USA US2407730

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Sept. 17, 1946.
R. s. TAYLOR
2,407,729
CATALYTIC I‘GNITER FOR GA'SEOUS FUELS
Filed April 12, 1944
2 Sheets-Sheet 1
WENT/QR
BY
‘ _
/{///%
ATTORNEY
Sept, 1?, 146.,
R. s. TAYLOR
2,497,729
CATALYTIC IGNITER FOR GASEOUS FUELS
Filed April 12, 1944
'2 Sheets-Sheet 2
2,407,729
Patented Sept. 17, 1945
UNITED‘ STATES PATENT OFFICE
CATALYTIC IGNITER FOR GASEOUS FUELS
Robert S. Taylor, Evansville, Ind., assignor to
Servel, Inc., New York, N. Y., a corporation of
Delaware
Application April 12, 1944, Serial No. 530,673
9 Claims. (Cl. 158-115)
1
for domestic gas ranges.
_
.
2
and wherein like reference characters are used
My invention relates to ignition devices and
more particularly to automatic catalytic lighters
to designate like parts, the numeral 20 desig
nates a‘gas range having a conventional burner
2| vand gas cock 22. A bellows 23 is mounted
_
Catalytic igniters have been used heretofore
for igniting illuminating gas. However, due to
the fact that the various gases used contain im
along side the gas cock and is operated by a cam
24 mounted on the gas cook. An air conduit 25
leads from the bellows and is‘ connected to an
puritiesywhich tend to poison the catalyst, these
auxiliary fuel container 26. Container 26 is pro
igniters have not proven entirely satisfactory.
vided with a removable cap 21 by which the con
It is therefore an object of my invention to
provide a catalytic igniter wherein fuel gas is ig 10 tainer may be ?lled with an alcohol or other high
ly volatile and combustible auxiliary fuel which
nited without poisoning the catalyst.
to provide an automatic igniter for gas ranges
wherein the opening of any one gas cook simul
does not have any detrimental effect on the cata
lyst. Container 26 is partly ?lled with a loose
?brous material 28 which is held in place by a
wire screen 29. A conduit 30, of relatively small
cross-section, leads from container 26 and is con
nected to a spherical igniter 3|. The igniter is
?lled with a granular catalytic material 32 which
Fig. 3 is a vertical sectional view on line 3-—3
» er 2| and simultaneous with the opening. of“ the
It is a particular object of my invention to pro
vide an automatic igniter for gas ranges wherein
a pure ?uid such as one of the alcohols is used
as an auxiliary fuel.
m
It is another particular object of my invention
may be platinum black or any other suitable
taneously operates said igniter without interfer
catalytic material. The catalyst is held in place
20
ing with the setting of the other gas c0cks,'and
by means of wire screens 33, the mesh of which
wherein the opened gas cook will be automati
is close enough to hold the catalytic material in
cally returned to its closed position in the event
place and still loose enough to permit gas and the
that that particular gas cook has not been ini
?ame thereof to pass through said screen. A
tially opened beyond a predetermined point.
These and other objects of my invention will 25 ?ash tube 34 leads from gas burner 2| and is
removably connected to igniter 3| by means of
be apparent from the following description taken
removable clips 35; the arrangement is such that
with the accompanying drawings which form a
an air space 36 is provided between said tube
part of this speci?cation, and wherein:
and said igniter. Check valves 31 and 31’ are
. Fig. 1. is a partial top plan view of a gas range,
partly in section, illustrating one embodiment of 30 provided in the bellows 23 and in the connection
38 between conduit 30 and igniter 3|, respectively.
my invention;
,
The operation of this igniter is as follows,
Fig. 2 is an elevational view, partly in section,
when gas cock 22 is opened fuel gas flows to burn
taken substantially on line 2--2 of Fig; 1;
gas cook, cam 24 compresses bellows 23 forcing
air through conduit 25 into container 26 and
through conduit 30 into igniter 3|. This air in
passing through container 26 picks up alcohol
of Fig. 1;
Fig. 4 is a detail showing of a cam and bellows
arrangement when the gas cock is in closed posi
tion;
Fig. 5 is a view similar to Fig. 4 but with the
gas cock fully open;
Fig. 6 is a broken top plan view of a gas range
illustrating a second embodiment of my inven
tion;
Fig. '7 is a vertical sectional view on line 1-‘!
of Fig. 6;
Fig. 8 is a top plan view, partly in section, of
a bellows operating mechanism;
Fig. 9 is a vertical sectional view on line 9-9
of Fig. '7;
.
vapor therefrom and carries said vapor to the
40
catalytic material 32 where it is oxidized by the
air in the presence of the catalyst. The oxida
tion of the alcohol vapor generates a, high tem
perature in the catalyst which ignites the vapor,
which in turn ignites fuel gas which passes from
the burner 2| through ?ash tube 34 and the
flame is carried back through said tube to lg
nite the gas at the burner. The amount of al
.cohol vapor that is forced over the catalytic ma
terial each time the gas cock is opened is eX
Fig. 10 is a vertical sectional view on line 60 ceedingly small; therefore, the necessity for re
?lling the container with, alcohol would be very
lO-IU of Fig. 6; and
Fig. 11 is a vertical sectional view on line
||—|| of Fig. 6.
‘
Referring now to Figs. 1-5 inclusive wherein
one embodiment of my invention is illustrated
infrequent.
,
Referring now to Figs. 6 to 11 inclusive, where
in a second embodiment'of my invention- is illus
trated, the numeral 40 designates a gas range
2,407,729
3
4
equipped with conventional burners 4|. Each
per generates a high temperature in platinum
wires causing them to glow and ignite the fuel
gas which passes from burner jet 4|’ through
burner is provided with a jet 4|’ which directs
fuel gas into ?ash tubes 42 leading from the
burners to a central igniter 43. This igniter con
sists of a housing 44 provided with a removable
cover 45 which is provided with openings 46. The
?ash tube 42. The flame then passes back
through the ?ash tube and ignites the fuel gas
at that particular burner.
The arms 18 and triggers 62 are so proportional
and arranged that when a gas cock has been
bottom of the housing is provided with openings
41. A catalytic igniter 48 consisting of a plu
rality of’ strands of platinum or platinum-rhodi
turned through approximately 45°, in other
words, about one-half open, the arm slides past
the end of the trigger and the dash (pot 12 oper
ates to return the plunger ‘H to its original posi
tion. The plunger in returning to its original
position carries the trigger 62 and attached bolt
59 to their original positions. Travel of each of
the bolts 59 is limited by pivot pins 65 which trav
el in guide ways 6| on each side of the channel
um wire is mounted on an annulus 49 which is
screw-threaded onto a vapor conduit 5|). The
arrangement is such that by removing the cover
45 the igniter is accessible and may be removed
for inspection or repair. A conduit 5|, of rela
tively small cross-section, leads from an. auxiliary
fuel container 52 and is connected by means of a
sleeve 53 to vapor conduit 50.. The sleeve 53 is
provided with a check valve 54.
This range 40 is provided with a conventional
gas manifold 55, gas conduits 55' and gas cocks
56. A U-shaped channel member 51 is mounted
under the gas cocks and is welded to or otherwise
51.
?xedly secured to supports 58.v A plurality of
terfered with lby'the adjacent bolt and trigger.
bolts or sliding members 59, one for each gas. cock,
?t snugly within channel 51 and are guided for
limited reciprocal movement therein by means of
a pivot pin 60 which travels in guides 6|v in each
In other words, the arm 18 may be freelymoved
back and forth above the. trigger and when the
gas cock is turned to the off‘ position arm 18 rides
over the top of the inclined portion 64 of. the trig
side of the channel. A trigger 62 is pivotally
mounted on. pivot pin. 65 within. each bolt 59.
ger depressing it into. the slotted portion of > the
Each of these-triggers is provided on its upper ,7
surface with a flat horizontal portion 63. and an
inclined or cam portionv 64‘; the horizontal por
tion is substantially flush with the top- of the bolt.
A spring 65 is mounted in an opening in the trig
gel.- and tends to rotate the trigger in a counter
clockwise direction. A detent 66 is provided. at
one end of each trigger and ?ts under a ledge 6.1
on. the bolt to limit counter-clockwise rotation of
the trigger. A latch 68 projects downward from
the opposite end of the trigger and engages the
end 69 of a slot 10 in plunger 1|. This plunger
‘H, which is provided with a plurality of slots 10',
one under each trigger, is mounted for sliding
movement under the channel 51 and is provided
at one end with a dash. pct 12 which is ?xedly
mounted on the channel. A spring 13 encircles
the rounded portion 14 of plunger ‘H with one
end thereof bearing against one head of.v the dash
'
After a. gas cook has been turned through 45°
and the plunger and bolt have been returned to
their original positions the gas cook may be ad
justed to- any desired setting without;v being in
bolt. In order to insure ignition of the fuel gas
each time a gas cock is opened, the gas cook must
be turned through at least 45°, otherwise the
dash pot in returning the plunger to its inactive
position will‘ return the gas cock to its closed
position,
If, on the other hand, the gas cook
has been turned through or beyond 45°, the bel
lows will supply adequate air and alcohol vapor
to the igniter to ignite the fuel gas, and since the
operating arm has slipped past the trigger the
return of the plunger, bolt and trigger has no
40 effect on the open gas cook.
Also it is to be noted
that with the arrangement illustrated in Figs. 6
to 11 inclusive the opening of any gas cook will
automatically ignite the fuel gas at that burner,
andv that the opening of any one gas cook has no
~ effect upon the setting of any other of the gas
cocks. This is true because of the slots T0 in
the plunger and of the independent movement of
the
bolts 59 relative to each other.
pot and the other end bearing against a piston
While I have illustrated and described but
15>which is attached to the rod 74. By this means 50
two speci?c embodiments of my invention it is
the plunger ‘II is biased toward the position shown
obvious that theinvention may take many other
in Fig. 7. The opposite end of‘ plunger TI‘ con
forms. Also, while the invention. has been il
tacts a bellows T6 which is connected by a conduit
lustrated in connection with the top burners of
11 to the auxiliary fuel container 52‘. This bellows
is provided with a spring pressed check valve (not . a gas range, it obviously may be used with equal
facility with the oven and broiler burners. or, as
shown) similar to the check valve 31 of Fig‘. 5.
a matter of fact, with anygas burner. It is there
An arm 18 is rigidly attached to the lower portion
fore to be understood that my invention is lim
of each of the gas cocks 56 and is adapted to be
ited only by the following claims.
’
‘
rotated with the gas cook to slide an adjacent
I
claim:
bolt 59 to the left as viewed in Fig. 6.
60
The operation of‘ the igniter illustrated in Figs.
1. An ignition device for fuel gas comprising a
6‘ to 11 inclusive is as follows, when any one of
gas burner, a gas cook for supplying gas‘ to said
the gas cocks 5*6'is opened to admit fuel gas to its
burner, a reservoir for an auxiliary fuel, means
particular burner the arm 18. of. that gas cook
for delivering air to said reservoir, a catalytic
contacts the adjacent trigger 62 sliding it and 65 igniter, and mechanism operated by movement
its attached bolt 59 to the left as viewed in Fig. 6
of said gas cock for operating said air supply
with the result that latch 68 pushes the plunger
means for delivering air and entrained auxiliary
TI to the left compressing the bellows ‘l6 forcing
fuel from said reservoir to said catalytic‘ igniter
air through conduit 11, auxiliary fuel container
to ignite the fuel gas supplied to said burner. _
52. conduits 5| and 5|] into the igniter. This 70
2. An igniter for fuel gas comprising a gas
air inv passing through the container 52 picks up
burner, a gas cock for supplyingfuel gas to said
alcohol vapor and carries said vapor to. the plati
burner, a reservoir for auxiliary fuel, a catalytic
num‘ wires of the igniter where the vapor is oxi
igniter, a bellows for supplying air to. said reser
dized by the air in the presence of the platinum
voir, a conduit leading from said reservoir to said
wires. As stated above, the oxidation of thisva
igniter, and mechanism connected to said gas
2,407,729
5
6
cock for operating said bellows simultaneously
with the opening of said gas cock.
7. An igniter for gas ranges comprising a plu
rality of burners, a gas supply valve for each of
said burners, a catalytic igniter, means for sup
plying gas to said catalytic igniter, a reservoir
3. An igniter for fuel gas comprising a gas
burner, a gas cock for regulating the supply of
fuel gas to said burner, a reservoir for an auxil
for an auxiliary combustible ?uid, a conduit con
iary fuel, a catalytic igniter, a conduit connecting
necting said reservoir to said catalytic igniter,
said reservoir to said igniter, an air pump con
an air pump connected to said reservoir, and
nected to said reservoir, and mechanism operated
by movement of said gas cock for operating said
mechanism operatively connected to each of said
gas supply valves for independently operating
said air pump for supplying air and entrained
combustible ?uid to said catalytic igniter.
8. An igniter for gas ranges comprising a plu
rality of burners, a gas supply and regulating
valve for each of said burners, a catalytic igniter,
necting said reservoir to said igniter, mechanism 15 means for directing gas from each of said burners
to said catalytic igniter, a reservoir containing
operated by movement of said valve for supply
an auxiliary combustible ?uid, a conduit con
ing auxiliary combustible ?uid from said reser
necting said reservoir to said catalytic igniter, an
voir to said catalytic igniter simultaneous with
air pump connected to said reservoir, mechanism
the supply of gas to said burner, and means for
directing gas from said burner to said igniter.
20 operatively connected to and operated by each of
said valves for operating said air pump upon
5. An igniter for domestic gas ranges compris
air pump.
4. An automatic gas igniter comprising a gas
burner, a valve for controlling the supply of gas
to said burner, a, catalytic igniter, a reservoir for
an auxiliary combustible ?uid, a conduit con
opening of any one of the gas valves, and struc
ture operatively connected to said mechanism
for returning said one gas valve to its closed posi
igniter for said burners, ?ash tubes leading from
said burners to said catalytic igniter, a reservoir 25 tion in the event that said one valve is not ini
ing a plurality of gas burners, a gas supply valve
for each of said burners, a common catalytic
for an auxiliary combustible ?uid, a conduit con
tially opened beyond a predetermined point.
necting said reservoir to said catalytic igniter,
and mechanism operatively connected to each
9. A gas range comprising a plurality of gas
burners, a gas valve for each of said burners, a
of said valves for supplying auxiliary combustible
?uid from said reservoir to said igniter.
6. An igniter for domestic gas ranges compris
ing a plurality of gas burners, a gas supply valve
for each of said burners, a common catalytic
igniter for said plurality of burners, means for
catalytic igniter, ?ash tubes located between said
burners and said igniter, a reservoir containing a
combustible ?uid, a conduit leading from said
reservoir to said igniter, an air pump connected
to said reservoir, and mechanism operatively con
nected to each of said valves for actuating said
directing gas to said igniter, a reservoir for an 35 air pump simultaneous With the opening of any
one of said valves, whereby air and entrained
auxiliary ?uid, a conduit connecting said reser
combustible vapor is supplied to said igniter.
voir with said igniter, an air pump connected to
said reservoir to supply air and entrained com
ROBERT S. TAYLOR.
bustible ?uid to said catalytic igniter.
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