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Патент USA US2089882

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Aug. 10, 1937.
'
(g, E;-DUFO'UR
2,089,882
ANTIFLOOD OIL BURNER ATTACHMENT
Filed Feb. 24, 1956
WITNESS
2 Sheets-Sheet l
ATTORNEY
Aug. 10, 1937.
2,089,882
c. E. DUFOUR
ANTIFLOOD OIL BURNER ATTACHMENT
Filed Feb. 24, 1956
= =m .
2 Sheets~$l1est ‘3
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INVENTOR ’
WITNESS
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ATTORN EY
Patented Aug. 10, 1937
2,089,882
s'r'rss PATENT OFFEQE
2,089,882
ANTIFLOOD OIL BURNER ATTACHMENT
Charles Ernest Dufour, Wentworth, N. H.
Application February 24, 1936, Serial No. 65,483
3 Claims.
. . This invention relates to an attachment for
burners and has for the primary object the pro
vision of a device of this character which maybe
readily adapted to a fuel control valve of a burner
to prevent ?ooding of the latter with fuel be
tween the time the control valve is opened and the
timefof igniting the burner and also acts as a
safety means to assure closing of the control fuel
valve when the burner isextinguished.
, With these and other objects in view, this in
vention consists in certain novel features of con
struction, combination and arrangement of parts
to be hereinafter more fully described and claimed.
For a complete understanding of my invention,
15 reference is to be had to the following description
and accompanying drawings, in which
Figure 1 is a side elevation illustrating an at
tachment constructed in accordance with my in
vention.
Figure‘ 2 is a top plan view illustrating the
20
same.
Figure 3 is an end elevation, partly in section,
illustrating the device.
Figure 4 is a view similar to Figure 3 showing
25 the other end of the device.
Figure 5 is a sectional view taken on the line
5—5 of Figure 1.
Figure 6 is a sectional view taken on the line
B—@ of Figure 1.
Figure 7 is a sectional View taken on the line
30
1-7 of Figure 1.
V
Figure 8 is a fragmentary bottom plan view il
lustrating a clip for connecting the attachment to
the handle of a fuel control valve.
35
Figure 9 is a detail sectional view showing
means of holding one of the Weights of the de
vice in its adjusted position.
Referring in detail to the drawings, the numeral
l indicates a fuel control valve for a burner (not
40 shown), the operating handle of the valve being
indicated by the character 2 and 3 represents the
fuel supply pipe on which is mounted my inven
tion by means of a bracket 4. Secured to the
bracket is a frame 5 having removable walls 6
45 cooperating with the frame in forming a housing.
Rotatably supported by the frame is a valve oper
ating shaft ‘i, one end having secured thereto a clip
8 adapted to fit over the handle 2 of the valve I
and the opposite end of the shaft has pivoted
50 thereto a lever 9 carrying a resilient dog I O adapt
ed to be moved into and out of engagement with
ratchet teeth H formed on a gear l2. The gear
I2 is journaled on the shaft 1 and connects with
a governor mechanism !3 which will be herein
55 after more fully described.
(Cl. 161-9)
A disc I4 is secured to the gear 12 and has se
cured thereto one end of a coil spring 15, the other
end of the spring being secured to the frame 5.
The shaft l’ extends through the spring. An ear
i5 is formed on the disc l4 and cooperates with a 5
stop i 1 formed on the frame in limiting the rota
tion of the disc by the action of the coil spring.
The end of the shaft to which the lever 9 is pivoted
is provided with a notch i ‘l’ to receive one end of
a spring pressed pivotally mounted ?nger piece 10
I8. The ?nger piece is pivoted to the lever 9 and
is employed for temporarily securing the lever 9
in its full line position, as shown in Figure 1, and
when said lever is in the dotted line position the
dog E6 is disengaged from the ratchet teeth of the 15
gear l 2 thereby discontinuing the driving connec
tion between the gear l2 and the shaft 7.
The governor mechanism is constructed as fol
lows: A shaft 29 is journaled on the frame 5 and
connected to the gear l2 by a gear 2|. An escape
ment'shaft 22 is journaled on the frame 5 and is
connected to the shaft 26 by a train of gears 23
consisting of a ratchet gear 24 secured on the
shaft 20 and engaged by a spring pressed dog 20'
pivoted on the gear 2 I’. The gear 2|’ is journaled
on the shraft 20 and meshes with a double gear 22'
journaled on the shaft 22 and which meshes with
a gear 23’ journaled on the shaft 20. An escape
ment gear 24' journaled on the shaft 28 forms an
integral part of the gear 23’.
Secured to the escapement shaft is a bar 25 in
cluding screw threaded portions 26 on which are
threaded weights 27. The screw threaded por
tions have flattened faces 28 to be engaged by
spring members 29 secured to the weights 2'!
30
whereby said weights will be held against turning
on the screw threaded portions accidentally. An
escapement pawl 38 is secured to the bar 25 and
coacts with the escapement gear 24’ forming a
part of the train of gears 23. rI’he weighted bar
operates similar to an escapement of a clock
mechanism and acts to control the speed of rota
tion of the shaft 1 by the unwinding of the spring
l5. The purpose of the ratchet gear 24 and the
dog 20’ is to allow winding of the spring l5 with
out operating the escapement bar 25.
In operation and to turn on the fuel to the
burner (not shown), the lever 9 is positioned as
shown in full lines in Figure l to establish a driv
ing connection between the spring l5 and the 50
shaft 1 and the lever B is turned in one direction
opening the valve l and at the same time wind
ing the spring l5. As soon as the lever 9 is manu
ally released, the spring l5 acts to drive the shaft
1 in a direction for closing the valve l. The gov
dosages
2
ernor mechanism at this time controls the speed
of rotation of the shaft 1 so as to bring about a
closing of the valve l within a predetermined.
time to prevent ?ooding of the burner between
such time as. when the fuel is initially turned on
to the burner, and the time in which the burner is
ignited. After_the igniting of the burner‘ the
lever 9v is moved into dotted line position and the
valve then turned towards an open position to
regulate the ?ame of the burner. At this time
the spring l5 has its driving action interrupted
to the shaft ‘I, consequently permitting the valve
to remain as manually set. The ear [6 moving
from one side of the stop I‘! to the other side
governs the unwinding of the spring as well as
governing the amount the spring is wound.
To extinguish the burner, the lever 9 is swung
into dotted line position, as shown in Figure 1,
and then manually turned to close the valve.
After the valve is moved manually to- a closed
position, the lever 9 is swung into full line posi
tion, as shown in Figure 1, so that the spring l5
may act to urge the valve in the direction of a
closed position and thereby retain the valve in
25 said closed position.
Having described the invention, I claim:
1. A device of the character set forth compris
ing a ?xed frame, a shaft journaled on said frame
and connected to a fuel control valve, a gear jour
30 naled on the shaft, ratchet teeth formed on said
gear, a drive spring connected to the frame and
between said drive spring and the shaft for the
closing of the valve.
2. A device of the character set forth compris
ing a ?xed frame, a shaft journaled on said frame
and connected to a fuel control valve, a gear
journaled on said shaft, ratchet teeth formed on
said gear, a disc secured to said gear, means for
limiting the rotation of the disc in either direc
tion, a coil spring having one end secured to the
frame and the other end secured to the disc for 10
rotating the gear in one direction, a governor
means connected to said gear and supported by
the frame, a hand lever pivoted to the shaft and
adapted to occupy different positions, a dog car
ried by the lever to engage the ratchet teeth when
said lever occupies one of its positions to con
nect the gear to the shaft, and means cooperat~
ing with the shaft and lever to temporarily se
cure said lever‘ in any of its positions.
3. A device of the character set forth compris 20
ing a ?xed frame, a shaft'journaled on said frame
and connected to a fuel control valve, a gear
journaled on said shaft, ratchet teeth formed on
said gear, a disc secured to said gear, means for
limiting the rotation of the disc in either direc 25
tion, a coil spring having one end secured to the
frame and the other end secured to the disc for
rotating the gear in one direction, a governor
means connected to said gear and supported by
the frame, a hand lever pivoted to the shaft and 30
adapted to occupy different positions, a dog car
ried by the lever to engage the ratchet teeth when
to said gear, a governor means connected to said
said lever occupies one of its positions to connect
gear and supported by the frame, a control lever
the gear to the shaft, said shaft having a notch,
35 pivoted to the shaft and capable of occupying
and a spring pressed ?nger piece pivoted on the
lever to engage in the notch of the shaft to tem
different positions, and a ?exible dog secured to
the lever to engage the ratchet teeth when said
lever is in one of its positions to establish a drive
porarily secure said lever in one of its positions.
CHARLES ERNEST DUFOUR.
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