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Oct. 22, 1946.
2,409,833
w. D. BURCH
ACETYLENE GENERATOR
Filed June 26, 1944
3 Sheets-Sheet 1
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ATTORNEYS.
ocr, 22, 1946.
w. D. BURCH ‘
`2,409,833
ACETYLEN E GENERATOR
Filed Júne 26, 1944
3 Sheets-Sheet 2
INVENTOR.
W il'Lie D _' EJL‘LI' |311
BY
I
2 Q
.Og/ml M
AT‘roRNEYs.
Oct. 22, 1946. v `
l
_ w. D. BURcH
AC'ETYLENE GENERATOR
Filed June 26. 1944
4
2,409,833
.
3 Sheets-Sheet 3
Y FIG. e.
INVENTol-á.
'l www D; Emp Eh
A
Patented Oct. 22,1946
2,409,833 -
UNITED STATES PAT-ENT ?orrlcr _
2,409,833
ACETYLENE GENERATOR ’
Willie D. Burch, OklahomaI City,` Okla., assignor
of one-half to Forrest Parrott, Oklahoma City,
Okla.
1
Application June 26, 1944, serial No. 542,140
12 Claims. (c1. `«isa-53.3)
This invention relates to acetylene generators
and more particularly to a generator adapted to
2
Fig. 14 is a fragmentary vertical section, show
ing a carbide feed valve in a closed position.
provide a measured feed of the carbide to the
I_n the drawings, wherein for the purpose of
water.
illustration is shown a preferred embodiment of
the invention and wherein similar reference char
‘An'important object -is to provide an acetylene '
generator having but one exterior control and
acters designate corresponding parts throughout
the several Views, the letter A may generally des
this is operated by a simple push-pull rod.
" _ Another important object> of the invention is
ignate the novel generator, including a main
to provide a particularly safe generator including
housing I5 enclosing a carbide hopper I6, a meas
‘automatic means to shut 01T the carbide'feed, if 10 uring receptacle or starter cup Il, a water reser
the operator fails to do so.
Still another important object is to provide a
voir I8, a popoif valve I9 and a conventional
flashback` 20.
y
generator of this kind provided with locking
The main housing I5 is so arranged that the
means which automatically locks all closures
‘carbide hopper I6 is uppermost, the starter cup
against removal while gas is under pressure in 15 I -I immediately below the hopper I6 and com
the generator, but which means automatically
municating therewith, and the water reservoir I8
unlocks the closures upon absence of gas pres
below the starter cup I‘I, with a downwardly and
sure.
inwardly sloping partition 2l, above the reservoir
4A‘major object is to provide a diaphragm-op
I8, providing a splash guard 22 having a central
erated means> for automatically opening the pop 20 opening defining a valve seat 23. Preferably, this
off valve should the latter become stuck.
seatyis arranged> to seat a valve, to be described, I
b Í Another major object is to provide a portable
which is normally I„spaced from and below the
acetylene generator which has quick-acting
seat. `The seatv 23 includes a substantially hori
means to seal off the carbide compartment from
the water upon tipping over of the generator. ~
zontal ringfshaped main, seat portion 24 and a
25
Still another important object is to provide an
acetylene generator- which automatically locks
depending collar-like auxiliary seat portion 25
spaced from the interior periphery of the portion
24 and secured to the under side of the partition
against feeding carbide, when the water therein
2|. 'I'he other openings intothe housing walls
freezes.
Will be described in connection with the several
I
‘
lOther objects and advantages of the invention 30
will be apparent during the course of the follow
ing detailed description of the invention, taken
drawings:
`
n '
The'carbide hopper I6 is provided with a drum
like, vertical wall 2B, an upper horizontal wall 2l,
and a downwardly and inwardly sloping Vbottom
in connection with the accompanying drawings,
«forming a part of this specification, and in which
portions of the housing.`
Wall or sump 28. Preferably, this Wall 28 is de
35 tachable, since it may be provided with an out
‘ Fig; 1 _is a vertical section of the novel genera
wardly-extending perforated flange 29 at its up
tor.
"`Fig`. 2 is a. top plan View of the main carbide
per end, while the wall 23 may be provided with
anoutwarclly-extending perforated flange 30 at
hopper thereof, removed, but normally disposed
at the upper end_of the generator`
its lower end, both ilanges being carried by an
Voutwardly-extending perforated flange 3l _carried
Figs. 3 to Ginclusive are horizontal sections of
the generator, taken substantially upon their re->
spective lines of Fig. l. n
by the wall of the housing I5. Suitable securing
members 32, as bolts and nuts may be provided to
detachably secure the several flanges together
Y
Figsjfl and 8 are enlarged fragmentary vertical
sections of the generator, taken substantially
and, of course, gaskets may be employed, if de
sired.
upon their respective lines of Fig; 1.
'
` Figs. 9, 10 and l1 are vertical sections through
three diaphragms employed in the novel genera
tor.
`
'
‘
‘n Fig. 12 is a fragmentary vertical section of the
_
,
`
@This bottom wall or sump 28 is provided with a
centrally `disposed valve seal 33 which may have
a bevelled face, sloping outwardly and down
wardly.
-50
"
`
-
"
The upper'wall 2'I of the _carbide hopper IB‘is
generator upon substantially the line I2-I2 of
Fig. 1.
provided with a centrally disposed ñller opening
34 having an ‘upwardly-extending exteriorly
Fig. 13 is a section, normal to the section of Fig.
12 but showing an oscillating actuator for a Valve,
will be subsequently described
.in an abnormal position. .I
screw threaded collar 35.
55
The closure therefor
I
.
I
I
`:The verticalwall 26 of the hopper I6 may sup
2,409,833
4
¿Z1
erably, a cylindrical vertical wall 4B secured at
six suitable stops such as fixed lugs lid-_69, spaced
along the rod. These lugs may be of any suitable
shape and their function is to engage certain
parts of the mechanism to be next described.
The lug 64 nearest the diaphragm 6| is
its upper end to the bottom wall or sump 28 of
the hopper I6, and a bottom wall or sump 4| hav
adapted to engage the legs 1|] of a lever 1I
straddling the rod 55, as in Fig. 8, With the legs
ing a centrally-,disposed valve seat v_4_2,"„vvhich ymay
have- an outwardly l»'-and’downwardly `bevelled =face,
and the axes of the seats 33 and 42 are, prefer
1.63 occupying vpart of the space :between'the dia
phragm `6| and' lug ‘64. Since substantially
10 similarly shaped levers engage the lugs 66 and 61,
ably, concentric.
«. " fs’imilar reference characters are employed for all
port4 conventional accessories, as a pressure
gauge 36.
The measuring receptacle I1 is, of course, much
smaller than the hopper le and includes, pref
'
Below the partition 2|, the reservoir ,L8 _occu- )
pies the lowermost portion of the main ìhousing ‘
l5 and the bottom of this kreservoir ëHl‘Ol/ÍidSS al.,
sump ¿i3 from the lowermost portion ;of which
leads a suitable conduit 44 opening into the
reservoir at one end and extending exteriorly of.
the housing i5 at its other end, Where it may
A.three tlevers which are, inverted L-shaped with
the normally vertical portion 12 of the lever 1|
.carrying vthe 'legs 10, the horizontal portion 13
providing‘an abutment.
l»legs of whichare engaged by the lug 61|, abuts a
vertical rod 14 which extends upwardly tocon
tact »thev valve (not shown) of the popoflï valve
terminate in a valve 45. The vertical‘wall -46 of
the reservoir IB may beinturned as at 41 at its 20 I9.
>lower end to fprovide a ñrm, Afiat base »for .the
generator and hraise the conduit 44 slightly above
the »bottom Vof the generator. This reservoir is
provided, -of cou-rse, with the conventional .down
wardly hanging, -pivoted, agitator .paddle .4.8 'with
’ „
The horizontal portion of the lever 1|, the
Each lever 1| is pivoted at the juncture of
¿the portions 1'2 `and ¿13 »by a pivot pin -15 ‘jour
nalled to »the main .housing walls. When-the'rod
55 moves toward `the left, urged yby »the diaphragm
6|, forced inwardly by undesirable gas pressure
of seventeenY pounds, the «lug-64 will move xthe
exterior manipulating handlellß.therefor.V .
portion~12 to the left and `the portion 13 in an
'The lvertical wall 146’ .extends upwardly .to .carry
the lpartition 2| and may then fslo-pe inwardly as
arc upwardly, raising the rod 'I4 »and -forcing »the
rvalve of the popoff valve from `-its »seat „(in the`
vat V5|) to meet the vertical wall 12,5.of the hopper
,i6 and end in the »flange „3| ,mention-ed.
tothe right will cause the `lever 1| to assume its
Y. A water -level for 1the reservoir is ,indicated by a
normal position, with the _portion 1.2 vertical,
dot and dash line 5|.
v
' ,
ANow las `for the `novel Vsafety .operating means
for the generator, ,there is provided but one yex
event this valve sticks)- Movement of the lrod 55
since the llevers are balanced to vassume such a
vnormal
position.
»_
‘
'
'
The lug »65 Vis adapted to `contact 'a vertically '
terior member ~necessary for .manual regulation
of the generator and this one member automati
slidable pin 15a of a conventional thermostat 16
which is- supported upon ‘the partition 2| and this
pin 15a is adapted to move upwardly, >:urged „by
cally aids in the regulation ofother conditions
arising 4_during use of the generator. This mem
the thermostat mechanism, upon drop of _tem
ber is, preferably, a single rod 5.5, extending ex
perature inside the housing. l5 suflicient to freeze
teriorly and interiorly .of the .housing 1I5 through 40 the surfaceV of the water in the water reservoir.
Since this lu-g |ì5is to the right of the pin- 15aY
a suitable .opening'in the wall 4,6.. . 'I_‘he axis _0f
when the rod ¿is moved inwardly, the rod Ycannot
this opening intersects Athe vertical vaxis ofthe
be pulled out »to sta-rt the generation of gas, if
housing lli, >and the _axes of 'the valve seats 33
`and 42,. The transverse >cross section of the rod
this pin contacts the lug 65. Normally the free
_55 is shown as square in Fig. "7„ but it .may >have
other shapes, However, -it isnot rotatable,- but
is freciprocable. At 4its outer exterior end, the rod
' outer end of thepin 15a is below> the horizontal
engage the walls of .a socket or keeper 59 in the
move upwardlyin an arcand lcause a vertical
plane ofY the lug 65.
As foro-the lugs [65 and
these Iare associa-ted
-wit-h two levers 1| for voperat-ion ofthe valve at
vmay have a suitable-removable handle 5,6, spaced
from a small housing `51 secured to the >outer side
the base of the measuring receptacle I1; The
of the wall 46 and which „housing carries, at its 50 „flug 6G is vto the rleft of the taller lever 1| and‘upon
upper Yend a freely verticallyÄslidable .latching
movement of the rod-to the right, ¿willlcause 'the
pin 58 having an rend within'the housing 51 to
Yhorizontal portion 13 ofÍthis taller lever 1| to
upper `face of `the rod .55,
The upper `or outer
`valve stem attached toY a conical valve11 at vits
end of the pin.,58 may Ahave a finger »grip 60. It 55 upper end, to move upwardly in the spidery 18
is apparent that, as the rod reciprocates, _the pin
_secured to the wall of the receptacle l1, and al
5,8 will drop by gravity into .the keeper 59 andthe
rod will then remain stationary, but may be
released <from vthe keeper by manually .drawing
most fully seat on the valve seat 42.
The diaphragm housing B2 `is supported by the
and,` thevertieal portion of» this> adjacent lever,
Of course,
movement of the lug E6 in `the other direction
(toward the left) will operate to unseat the'valve
up on the pin.
'
60 11. However, movement of therod 55 suñiciently
After passing through `the .wall of the housing
to the left will also nearly seat this valve 11` (as
I5, the rod is ,operatively connected, in any ap
when excessible gas pressure Voperates the ,dia
proved ~way to the _center of a `ñexible sheet .dia
phragm 6I). In such an event„the last lever 1I
phragm .6| carriedby an open-.ended vdiaphragm
(that is, the extreme right lever) will pivot, urged
housing 62, with the diaphragm 6| over this 65 by the Vlug 61, which _is to the right of this last
.open end, suitably secured thereto and normally
lever 1|, its normally horizontal arm 13 will con
urged outwardly by _an expansion coil spring Sla.
tact the horizontal arm 13 of the adjacent'lever
main housing wall so that the diaphragm 6| faces
being free to move to the right, both levers will
inwardly, into the chamber 63, between the par 70 move to elevate their horizontal Vportions and
nearly seat the valve 11. (This valve 1'1 seats
tition-Zl and wall 28, and the structure 6|) to 62
Yinclusive constitutes means to reciprocate the
rod 55 upon _changes in gas pressure within the
housing I5. From rthis .diaphragm El the rod
extends into the chamber 63„and is provided'with
sufliciently to prevent carbide from moving past
4the seat but not enough to prevent gas lfrom flow
ing past the seat.) Both’leversiwilll drop, upon
movement of the rod to Athe righ-t; Thus. the „lug
2,409,833
61, shorter lever 1|, its pivot pin 15, lug 64, its
associated lever 1| and its pivot pin 15 constitute
which carries a ñexible sheet diaphragm I|| over
its open end and to which is secured a` depending
arm I I 2 having an eye at its free end, embracing
the intermediate portion of the short arm |08.
The housing I |0/carries a suitable means urg
ing the diaphragm III outwardly, as a weight
II3. `-Thus upon the building up of gas pressure
means jtofoperate the popoff valve and valve 11
upon operation of the diaphragm BI, but manual
sliding movement of the rod to the right «in
Figure 1 ‘will not affect these two levers 1|.
The lug 68 is simply one to limit outward move
ment of the rod 55 and may engage an innermost
support 80 for the rod-55, extending from an
suitable housing structure wall.
,
>
The lug 69 is associated with means toclose
within ,the housing I5, the diaphragm will be
forced inwardly andthe operative connection
10 between it and the valve |05 will almost seat this
valve, that is, will seat it enough so that no car
oir the water reservoir I8 from the rest of the
bide can enter the measuring receptacle V|1 to
housing I5 and lock the mechanism upon tipping
drop therethrough and into the water. When
over or abnormal tilting of the housing I5. It
has the additional function of locking the
mechanism upon a drop in the water level and
closing oiï the water reservoir at the same time.
the gas pressure has dropped to normal, the dia
phragm, urged by the weight ||3, will move out
wardly and cause the valve |05 to unseat. The
diaphragm housing I I 0 may be supported by a
The ñrst of these safety features includes a
normally vertical arm 8| having a suitable weight
bracket ||4 carriediby a suitable portion of the t
main
housing
structure.
'
,
'l
-
82 at its lower end, a ball and socket pivot 83 20
In Fig. 9 is illustrated one of the two closure
intermediate its ends and an enlargement 84V at
latching means. This one is particularly adapted
its upper end, with an upper face 85 and, prefer
for aclosure ||5 for the carbide receiving open
ably a conical, upwardly opening recess or con
ing 3,4 at the top of the housing I5. This closure
cavity 8S in this face 85.
I I5 is a cap having a depending skirt provided
` Normally contained in this recess 85 is a coni 25 with interior screw threads and, extending
cal enlargement 81 depending from the inter
through the center of the cap, is a thumb screw
mediate portion of a lever or arm 88, pivoted at
I I6 with its inner end bearing against the upper
one end as at 89 and with its free end contacting
face of a suitable sealing disc ||1 resting upon
the lower end of a vertical valve stem 90, carrying
the collar 35. Extending outwardly from the
a .valve 9|, which preferably comprises `a disc 30 outer periphery of the skirt are spaced apart
portion 92 and, above this disc portion an arcuate
wings or lugs II8. Preferablythere `are 4 such
valve portion 92, having a curved lower face.
lugs I i8, spaced 90° apart.
'
This valve 9| seats upon the seat 23 when the
The means of Fig. 9 includes a diaphragm
arm S8 pivots upwardly and urges the valve stem
structure providing an open ended housing `I2!) `
9B upwardly, since this arm 88 will swing up 35 closed at its open end by a thin flat sheet dia
wardly or to a horizontal position upon different
phragm I2I to the interior face of which is; at
positions of the enlargement 81 with respect to’
the concavity 86. No matter in which direction
tached a pin |22 slidable vertically through the
closed end wall of the housing |20 and through
the vertical arm 8| swings, except to a vertical
the upper wall 21 of the hopper I6 to extendiout
position, the enlargement will change its position 40 wardly of the latter closely adjacentlclogsure |I5.
so as to be more or less outside the concavity and
The position of this pin I 22 is such that, `when the
thus move the arm 08.
ï
’
generator is not operating, and the gas pressure
The valve stem 90 may extend upwardly
has subsided, `the top of the pin |22 is below the
through the valve 9| as a pin 95 to contact the
horizontal planes of the bottoms of all the lugs
lug 60 when Ythe valve 9| `is closedand prevent
_ or wings I IS` but whenl the pressure buildgup,
movement of the rod 55 but, when the valve 9|
D the diaphragm |2I will be forced inwardly
is unseated, the lug 30 is not interfered with by
against the pressure of the coil expansion spring
this pin 95.
.
|23 and the -pin |22 will rise and its upper end
There is provided a suitable ñoat 95, as of cork,
extendabove these horizontal planes, whereby
which floats upon the water level 5| and carries
the pin, end will function as a stopto prevent
an upwardly-extending arm or rod B1 loosely
slidable in bearings 08, having a normally hori
zontally-disposed float lever 09 pivoted as at |00
toits upper end. Intermediate its ends, this
lever 99 is` pivoted, as at |0| to a support |02
which may be carried by a suitable portion of the
housing I5. The free end of this float lever 99
engages the under side of the arm 88, intermedi
ate the end of the latter. By this arrangement,
when the float S6 drops with drop in the water
level 5I, the arm 91 will move downward, the lever
99 will swing upwardly, swing the arm 88 up
wardly seat the valve 9| and lock the operating
mechanism as stated. No more carbide can then
enter the 4reservoir I8 until the Water level is
corrected and the float 06 rises.
,
It is preferred to provide a diaphragm
operated valve |05 for the seat 33 at the lower
most portion of the lower wall 28 of the hopper
i6. This valve |05 is normally disposed below
the seat 33 and has an upwardly-extending `stem
|06 pivoted, as at |01, (shown particularly in
Fig. 10) at its upper end in the hopper compart
ment, to the end of `a short horizontal arm |08,
50
.more than a quarter> turn of the closure »|I5.
When the gas becomes exhausted as by exhaus
tion .of the carbide supply, the pin will move
downwardly, as the spring |23 urges -the dia
phragm I2| downwardly and the closure II5 may
be
unscrewed.
.
v
t
The diaphragm shown in Fig. 11 is one em
ployed with the closure |25 to the water intake.
This closure |25 is a screw-cap with wings or lugs
|25 disposed as arethe wingsor lugs I|8, and
adapted to close the L-shaped _intake pipe 21., ,
This diaphragm structure includesan open
ended housing |30, a nexible sheet diaphragm
I3| therefor with the diaphragm facing inward
ly of the housing I5, and a pin |32 secured to
theinner face of the diaphragm |3I. This pin
extends through the closed end wall |32 of the '
housing |30 Vand through the wall 45 of the
housing I5 in position to contact thelugs .or
wings |=2i6 of the closure |25 but, as may be
seen in Fig. 1, the free end of the pin |3| is
outwardly of the vertical planes of the lugs |25
when the diaphragm is straight, but .moves
which is, in turn, pivoted as at |09Mat its other ` ì within these planes.A When gas `pressure forces
end to theexterior of a diapr'aghm’housingïl I0 >75 the diaphragm inwardly aiconventional expan
2,409,833
8
'2. In an acetylenegenerator, a housing'pro
sionv coil spring |33 bears against the?diaphragm
structure and wall |32.>
vided with a carbide vhopper-and a water reser
,
A suitable tube |35 opens at one end in the
housing l5 and extends to the flashback '20,Y as
voir, a measuring receptacle below said hopper,
is Well known in the art.
valve seat at its lower end; - a valve‘for said seat,
communicating therewith and provided with a
`
.It `will be seen, from the foregoing, that a par
ticularly safe generatorv is provided with a single
manual feed control and automatic regulation
of the control governed by gas pressure within
the generator, with drop in water level and tem
perat-ure as well as abnormal position of the
generator, affecting this control. The generator
is also rendered safe by the provision of the
diaphragm-operated devices for preventing re
moval ofthe closures while the generator is
under _gas pressure.
having a depending stem; a control rod slidably
carried substantially horizontally by said hous
ing, with one end exteriorly thereof, the other
end interiorly thereof, and the vertical axis of '
said stem intersecting said rod; means Ywithin
said housing, operatively connected with said rod
to reciprocate said rod upon' Vchanges Ain gas
pressure vwith said housing; an inverted, sub#
stantially L-shaped lever pivotally carried by
said housing, with the -free end of the normally
horizontal arm of said lever 4below and closely
adjacent the lower end of said stem, and the
'With the generator empty, the valve 1'! at
normally vertical arm of said lever straddling
the lower end of the starter cup ll seated and
said rod; a second inverted, substantially L-V
the rod 55 in a position with the pin 58 in the
recess 5‘9, the closures may be removed, the hop 20 shaped lever pivotally carried by said housing
with the free end of the normally horizontal
per I6 charged with carbide and the reservoir I8
arm of said second lever directly below and close
filled with water so that the float ‘SB rises and
ly adjacent said ñrst-named free end, and the
unseats the valve 9|. As carbide 'enters the
normally vertical arm of said second lever
hopper |-6 some will pass to the starter cup Il
andV remain there since the valve 1l is seated. 25 straddling said rod, said levers being disposed so
that their said free ends extend forward to
Now, upon manually raising the pin 58 from the
ward eachother; and a pair of nxed abutments
recess 59 and pulling out on the rod 55, the
on said rod, one contacting one face of one nor
valve ‘l1 will unseat, the carbide in the starter
mally vertical arm and the other contacting the „
cup l`| will drop to the water, gas will begin
to form and the diaphragme |21 and |3| will 30 opposite face of the other normally vertical
function to latch the closures against removal.
While the gas remains at a desired pressure
arm.
'
`
`
'
3. In an acetylene generator, a housing pro
vided with a carbide hopper and a water reser
there will be no action of -the diaphragm lll
voir, a measuring receptacle below said hopper,
but, if this pressure begins to rise this diaphragm
will almost seat the valve H35 preventing further 35 communicating therewith and providedwith a
`'valve seat at its lower end; a valve for said seat,
feeding of carbide until lthe pressure drops to
having a depending stem; a control rod slidably
carried substantially horizontally by said housing,
with one end eXteriorly thereof, the other end
prevent gas from entering the hopper I6, upon
the subsequent drop in gas pressure, the dia 40 interiorly thereof, and the vertical axis of said
stem Vintersecting said rod; means within said
phragm II|V will again function to unseat Valve
housing, operatively connected with said rod toV
|05. Of course, it is apparent that various
reciprocate said rod upon changes in gas pres
changes in pressure will alfect the diaphragm
sure with said housing; an inverted, substantially
vvI?ll accordingly and .the extent‘valve |95 seats
normal. Since .the valve |05 seats only enough
to prevent feeding lof carbide, but not enough to
and unseats will also vary accordingly. `
Leshaped lever pivotally carried by said housing,
'
If the carbide hopper becomes empty, dia
phragm 6| will function to slide rod 55 to the
with the free end of the normally horizontal arm
of said lever below and closely adjacent the lower
end of saidstem, and the normally vertical arm
of said lever straddling said rod; a second in
right and seat valve 11 as 'valve |05 unseats. At
Vthe same time the drop in pressure will cause the
closurevl'atching mechanism to function to un 50 verted, substantially L-shaped lever pivotally
carried by said housing with the free end of the
latch the closure so that the carbide and water
normallyhorizontal arm of said second lever di
Vsupplies 'may be replenished, some of the car
bide running down into the starter cup again.
Various changes may be marde tol the form of
rectly below and closely adjacent said lìrst-named
free end, and the normally vertical arm of said
second lever straddling said rod, said levers being
the invention herein shown and described with
disposed so that their said free ends extend
outv departing from the spirit of the invention
toward each other; and means ‘for latching said
or scope of the claims.
rod in a ñxed position with the upper arm of said
Iclaim':
.
first-named lever inclined from the horizontal.
Y 1. In an acetylene generator, a housing pro
4. In an acetylene generator, a housing pro
vided with a carbide hopper and a water reser 60
vided with a carbide hopper anda water reser
voir, a measuring receptacle below said hopper,
voir, a measuring receptacle below said hopper
communicating therewith and provided with a
and above said reservoir, communicating with
valve seat, at itslower end; a valve for said
both, andl'provided with a valve seat at its lower
seat, having a depending stem; a control rod
slidably carried substantially‘horizontally by said 1.65 end; a valve for said seat; a control rod slid`ably
carried by said housing and extending interiorly
housing, with one end exteriorly'thereof, the
and exteriorly thereof; means operatively con
other end interiorly thereof, and the vertical axis
nected with said rod to reciprocate said rod upon
of said stem Vintersecting said rod; an inverted,
changes in gas pressure within said housing; a
substantially L-sh'aped lever pivotally carried `by
said housing, with the free end of the normally 70 pop-off valve; means carried by said rod and
housing to operate said ñrst named >valve upon
horizontal arm of said lever below and closely
adjacent the lower end `of said stem, and the
4normally vertical arm of said lever Vstraddling
said rod; and an abutment on said rod contacting
manual sliding movement of said rod in one direc
tion; and means carried by said rod and housing
tooperate said valves upon operation of said iirst
saidnormally vertical arm.
meansto` slide said rod in one direction andto
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2,409,833
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remain inoperativeduring operation' of sai'd‘sec
ondï'means.
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‘5. In an acetylene‘generator, `a lhousing :pro
vided with a carbide hopper and a water reser
voir, la measuring 'receptacle below said hopper
and above. ksaid reservoir,lcommunicating -with
¿10
ï I9; Ina portable` acetylene generator a housing
provided.` with `a `carbide hopper, a water freser
voir ‘and a, partition between said hopper and
reservoin‘said partition having a valve seat; a
measuring`> receptacle below said hopper and above
said reservoir and- partition, communicating with
both, and provided? with a valve seat atits lower
said ‘hopper’ and `provided with a valve seat at
end; a valve for said seat; a control‘rodfslidably
itsflower end; a valve for said second seat; a
carried Íbyi said housing and extending. interiorly “
control rod ‘slidably carried by said housing and
and` `‘exteriorly thereof ;.-‘means operatively con-. 10 extending, interiorly and ‘exteriorly thereof;
nectedi‘with said rod to reciprocate saidl rod upon
changes" in gas pressure withinsaid housing; a
means carried byI said rod and housing to operate
said valve; upon reciprocation> of said rod; a valve
pop-off -~va1ve`;" meansr carriedVA by. said rod and
for said first seat; safety means carried by said
housing to‘ operate‘said «first named valve upon
housing to‘close said last- named-valve upon tip
manual sliding movement of 'saidîrod in >one direc 15 ping of ~saidihousingv and upon depletion of Water
tion; and means carried by said rod and housing
in said. reservoir; and‘means associatedwith said
to operate said valves and said second means
safety means toxrestrain said rod against move
upon'operation 'of said first means to slide said
ment upon operation'of4 said safety means to close
rod `in fone direction and to remain inoperative
sai'dlast named valve.
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during operation of said second means.
‘f ` 20
10.,In a portable acetylene generator a hous
i 6. In` a portable acetylene‘generator a housing
ing :provided A with a carbide hopper, a water
provided with a‘crarbide‘hopper, awater reservoir
and a partition between said hopper and reser
voir,` said partition having'a valve seat; a meas
uring receptable » below `>saidßhopper and above
said reservoirland partition, communicating with
said hopper andprovided with a valve‘seat at its
lower end; a valve for said second seat; a control
rod slidably carried by said housing and extend
ing interiorly and exteriorly thereof; means car
ried by said rod and housing to operate said valve
upon reciprocation of said rod; a valve for said
ñrst seat; safety means carried by said housing
to close said last named valve upon tipping of
said housing; and means associated with said
safety means to restrain said rod against move
ment upon operation of said safety means to close
reservoir and apartition between said hopper and
reservoir, said partition 4having “a valve seat; a`
measuring receptacle- below said hopper and
above said reservoir and partition, communicat
ing `with'said hopper and provided with a valve
seatatits'lowerfend; a valve for said second
seat; a control rod slidably carried by said hous
ing and extending interiorly and exteriorly there
of; means >carried by said rod and housing to
operate said valve upon reciprocation of said rod;
a valve for said first seat; safety means carried
by said housing to close said last named valve
upon tipping of said housing; and means associ
ated with said safety means to restrain said rod
against movement upon operation of said safety
means to close said last named valve; said safety `>
said last named valve.
4
,
means including a normally vertical weighted
'7. In a Vportable acetylene generator a housing
rod, a ball-and-socket pivot for said rod; an en
provided with a carbide hopper, a water reservoir 40 largement upon the upper end of said weighted
and a partition between said hopper and reser
rod, providing a flat, normally horizontally dis
voir, said partition having a valve seat; a meas
posed face, a normally horizontal arm, a pivot
uring receptacle below said hopper and above said
for said last named arm', with the free end por
reservoir and partition, communicating with said
tion of said last named arm resting upon said
hopper and provided with a valve seat at its
face, a vertically-disposed stem for said last
lower end; a valve for said second seat; a control
named valve, with the lower end of said stem con
rod slidably carried by said housing and extend
tacting the free end of said last namedarm, a
ing interiorly and exteriorly thereof; means car
second stem extending from said last named valve
ried by said rod and housing to operate said valve
toward said first named rod and a stop upon said
upon reciprocation of said rod; a valve for said 50 ñrst named rod and disposed so that the side of
first seat; safety means carried by said housing'
said stop will contact said last named stem upon
to close said last named valve upon tipping of
closing said last named valve.
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said housing; and means, carried by said rod and
11. In a portable acetylene generator a housing»
associated with said safety means carried by said
provided with a carbide hopper, a water reser
rod to restrain said safety means to close said 55 voir and a partition between-said hopper and
last named valve.
reservoir, said partition having a valve seat; a
8. In a portable acetylene generator a housing
measuring receptable below said hopper and
provided with a carbide hopper, a water reservoir
above said reservoir and partition, communicat
and a partition between said hopper and reser
ing with said hopper and provided with a valve
voir, said partition having a valve seat; a meas 60 seat at its lower end; a valve for said second seat;
\ uring receptacle below said hopper and above said
reservoir and partition, communicating with said
hopper and provided with a valve seat at Vits lower
end; a valve for said second seat; a control rod
a control rod slidably carried by said housing and
extending interiorly and exteriorly thereof;
means carried by said rod and housing to operate
said valve upon reciprocation of said rod; a valve
slidably carried by said housing and extending 65 for said first seat; safety means carried by said '
interiorly and exteriorly thereof; means carried .
housing to close said last named valve upon
by said rod and housing to operate said valve
tipping of said housing; and means associated
upon reciprocation of said rod; a valve for said
with said safety means to restrain said rod
first seat; safety means carried by said housing
against movement upon operation of said safety
to close said last named valve upon tipping of said 70 means to close said last named valve, said safety
housing; and means, carried by said rod and asso
means including a normally vertical weighted
ciated with said safety means carried by said rod
to restrain said safety means to close said last
`named valve and to remain inoperative during
normal operation of said generator.
rod, a ball-and-socket pivot for said rod, an en
largement upon the upper end of said Weighted
rod, providing a fiat, normally horizontally dis
posed face and a concavity inwardly of said face,
52,409,83É
i121
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112
a normally. horizontal arm, av pivotv rfor said last
ment upon operation; of said safety means toîcl’ose
named ziarrn; with the. Vfree s 'end portion. of- ísaid
_ said last named valve; said safety means-include.. -
last namedjarrrr resting upon saidface, said last
named. arm having' a ' depending enlargement,
normally disposed within said concavity, a ver
tically-„disposed stem for said last named valve,
Witl'iâfthe'vlower end of said stem contacting the
freeiendlofsaid >last named> arm, asecond stem
ing a normally vertical. Weighted rod, a ball‘ffand
socket pivot,- for said rod; an enlargement upon-v
the upper end of said weighted rod providing a
iiat, normally horizontally disposed face, *a- nor
mally horizontal arm, a pivot for said last named
arm, with the free end portion. of said last named`
armresting upon said face, a vertically-disposed
i extending ¿from said last named valve toward
said añrs't named. rod and a' stopïupon'saîdA` r'od 10 stem for-said Alast named valve, With‘thelower
end of said stem contacting the free end ofjsaid
andY disposed so thatthe side of` saidy stop >will
.last named arm, a second: stemv extending-«girona
Contact ¿_s’aidlast namedistem upon closingy said
‘
said last named valve-„towardsaidfirst-named
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,
rod, a stop upon saidirod‘ andv _disposed So?that
- _12.g-In a portable acetylenegenerator a housing
the side of said stop-Will» contact saidïlastfnamed
provided wíth'fa carbide. hopper, a Water reser
stem upon closing said> lastïnamed valve», a ñoat;
Voir, and arpartitionbetween said hopper and res--`
a vertically reciprocating rod' extendingl upward
ervoir, said partition having avalve seat; a meas
1y from „said float, means looselyretaining said
uringvreeeptacle below said ‘hopper and ,above
last named rod in substantially upright position
said reservoir and partition, ‘communicating With
saidhopper and yprovided with 'a valve seatî at its 20 for reciprocation thereon alever, a pivot,- at one
end thereof adjacentthe upper end of saidlast
lower. end;v avalveior saidfsecond seat;> a. con
named rod, and a pivot forvsaid lastfnamed'rod,
trol; rod- slidably Vcarried‘by-said housing and.ex-.
inwardly of the other end thereof»,A said other
tending interiorly and‘exteriorlyìthereof; means
end of said last` named .rods extendingjdirectly
carried by said rod and ,housing to` operate said
beneath saidnormally horizontal arm, whereby
valvefupon reciprocationjrof ,said rody'a valvefor
as said floatrdescend‘s, said last named rod` Will.- ,
said ñrstrse‘at; safety means carried by said hous
ing to close saidlast named' Valve upon tipping> of
move
v
and raise saidnormally
WILLIE
horizontalarm.
D. BURCH.vi ‘
saidv housing; ‘andv means associated with saidr
safety means to restrain said rod against move
lastgnamed' valve.
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