Oct. 22, 1946. 2,409,833 w. D. BURCH ACETYLENE GENERATOR Filed June 26, 1944 3 Sheets-Sheet 1 m1.> 32. Y 40 anA 2.8 33 4 . l _55. 2 4 fäf’ïi 'n à 64 5 63 4 £1 . V W‘Íflfl 'Í 60 INVENTOR. D _ BDI“ Dh 4@ 55' ' C’ , D ` B’fßmß a/¿Sfw 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 - Y 2,409,833 Lig' , remain inoperativeduring operation' of sai'd‘sec ondï'means. ` ' Y ., ‘ \ l` l - ‘ ‘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. A . ` " ‘ i ' 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. ' ` 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 - - 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 .Y ' , 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.