US976885A - Carbureting apparatus. - Google Patents

Description

Patented Nov. 29, 1910.

2 SHEETS-SHEET 1.

i a QN w NM NN M N ww Q) k y C. M. KEMP.

OARBURETING APPARATUS.

APPLIOATION FILED NOV. 18, 1901.

976,885. Patented Nqv.29, 1910.

2 SHBETSSHEET 2.

. Juan/i073 Klara-we JIJYTem a CLARENCE M. KEMP, OF BALTIMORE, MARYLAND.

Specification of Letters Patent.

Patented Nov. 29, 1910.

Application filed November 18, 1901. Serial No. 82,751.

To all whom it may concern:

Be it known thatI, CLARENCE M. KEMP a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented new and useful Improvements in Carbureting Apparatus, of which the following vis a specification.

This invention relates to apparatus for producing carbureted air and especially to that type of apparatus in which the carbureted airis manufactured from the more highly volatile hydrocarbons, such as gasolene, commingled with air, such admixture of air and volatilized gasolene producing a gaseous mixture which, when the air and hydrocarbon are correctly proportioned, is well adapted for lighting and heating purposes.

My present invention has "for its object to provide a novel carbure ting apparatus of the type referred to in which the hydrocarbon will be quickly converted into vapor and the latter intimately mixed with air to form an initial mixture of air and vapor and'the mixture thus formed then intermixed with a diluent supply of air to'form a gaseous mixture in which the atmospheric and hydrocarbon elements are properly proportioned for consumption. 1

It also has for its object to provide in such an apparatus improved means for proportioning the supplies of air utilized for absorptive and diluent purposes to provide improved means for volatilizing the hydrocarbon; for condensing the surplusa-ge of ,the volatilized vapors'and conveying them back to the volatilizing chamber, for converting the watery vapors of the air to water of condensation and removing the latter from the carbureter.

It also has certain other 'objects.in view which will hereinafter become apparent.

To these ends my invention consists. in the features and in the construct-ion, combination and arrangement .of parts hereinafter described and particularly pointed out in the claims 'fOllOWlIl the description, reference being had to t e accompanying drawings forming a part of this specification, wherein- Figure 1 is a view in side, elevation, partially in section, of my improved gas gen erating apparatus; Fig. 2 1s a vertical sec-,

tional view of the carbureter. Fig. -3 is a detail perspective view of the :means for actuating and adjusting the regulating valve in the air-chest. Figs. 4, 5 and 6 are detail views showing said valve in different posi-' upper end by a head 3, and at its lower end by a head 4. The head 4 is rovided-cenmay with an upwardly pro ecting flange 4, internally threaded as shown, forming in connection with the lower end of the vessel 2 an annular trough 4 to catch the condensed watery and hydrocarbon vapors. Screwed into an aperture formed centrally in the head 4 is the upper end of a cylindrical casing 5 open at its opposite ends, the lower end of which is screwed into a hollow collar 6. p i

Disposed concentrically in the casing 5 is a smaller cylindrical casing7, closed at its opposite ends and provided atits lower end with a circumferential laterally projecting flange 8 which is bolted or otherwise-tightly. clamped or fastened to the, underside of the the vessel 2 and at its lower end with the interior or annular space 10 in the collar 6.

Tapped through suitable apertures in the collar 6 are pipes 11 which extend vertically upward and-at their upper ends are tapped through the sides of the lower end of the vessel 2 and communicate with the trough 4 Extending through the bottom of the casing 7. is a steam supply pipe 12, and tapped into said bottom is a pipe 13 for conveying from the casing its water of condensation.

Y The numeral. 14 indicates a storage tank for containing the hydrocarbon to be fed to the carbureter. In practice said tank is preferably buried underground and in the same horizontal plane with the heater 7. A pipe 15-leads fromthe bottom of the storage tank and is tapped through the flange 8.

into the space '10 in the collar 6, said pipe at asuiteble point being trapped, as in lcated at 16,and connected with the bottom of said trais asediment and settling vessel 17,

WhlCh serves to collect the heavier portions carbureter, as hereinafter explained. A pipe 18 extends vertically upward from the vessel 17 through which the contents of said vessel may be pumped from time to time, and a check valve 19 is arranged in the feed pipe and operates to prevent any backpressure from passing to the storage tank. The 'ga-solene, or other hydrocarbon, is fed by the pipe 15 to the casing 5, which I term a boiler and rises in the latter and in the pipes 11 to the same level as the gasolene in the storage tank.

Arranged in the lower end of the caslng 2 is an air distributer consisting of an annular cylindrical casing comprising two eon- I centric cylindrical she s 20, between which is an annular space 21 that is closed at itsupper end by an annular plate 22, and at its lower end by a foraminous or reticulated annular plate 23. An air pipe 24 is connectfed to the upper end of the air 'distributer andextends through the wall of the vessel 2, and at its other end said pipe communicates with a port 29' formed in the bottom of an air-chest 26, hereinafter described. Arranged over the said distributer is a conical foraminous or reticulated disk or diaphragm 27. Fitted in one side of the upper end of the vessel 2 is one end of an air pipe 28, the other end of which communicates with a port 25 formed in the bottom of the airchest 26 before referred to. Arran ed in the upper-end of the vessel 2 is a rustoconical partition 30 that abuts at its upper end the underside of the head 3, and at its lower end abuts the interior of the vessel 2 at a point below the pipe 28. Said partition is perforated intermediate its ends, as

at .31. Fitted in an aperture 32 formed centrally in the head-3 is a depending perforated tube 33, on the lower end-of which is fixed an i-mperforate and preferably slightly concavo-convex disk 34, which is of slightl less diameter than the adjacent portion ot the conical partition, and constitutes a deflector. A pipe 35 is fitted in the aperture 32 in't'he head 3 and leads to the burn ers or to a gasometer.

\ The" numeral 36-indicates a blower or air pump of any a proved or preferred construction and riven from any suitable prime motor. Leading from the blower is an air pipe 37 that is connected with and operates to deliver air to the air-chest 26. Within the air-chest is a single slide valve 38, consisting of a main body portion having an offset or wing 39 at one side thus rendering the, valve approximately L-shaped, as clearly shown in Figs.i4 to- 6 of the drawings. Normally the main portion of said valve 38 controls the port 29 in the airchest, while the offset or wing 39 controls the port 25, the valve occupying the posi tion shown in Fig. 4 relative tothe ports.

The longitudinal position of the valve 38 a bell 44 placed in a body of liquid in the upper part of the reservoir, in a manner similar to an ordinary gasometer, so that pressure of air within the reservoir will raise the bell 44, and when the pressure falls the bell will descend. Mounted in a fixed sleeve or bearing on the air-chest is a rock-shaft 45,v the outer end of which is provided with a crank-arm 46 which is connected by means of a link 47 with the top of the bell 44, so that the rising and falling movements of said bell will through the medium of said link and crank-arm, rock the shaft 45 in its bearing. The other end of said rock-shaft enters the air-chest and carries at its inner end a second crank-arm 48 which engages lugs 49 on the valve 38, so that the rocking movements are imparted to the valve, such rocking movements being converted into a reciprocating motion through the connections just described. The result of such construction is that the amount of air passing to the carbureter through the ports 25 and 29 will always be automatically proportioned to the demand on the plant, for it is apparent that if the blower supplies air in excess of what is required by the carbureter, such excess of air will pass into the reservoir 41 and will raise the bell, which latter, through the rock-shaft and its connections will move the valve 3850 as to restrict the ports 25 and 29, and thereby reduce the volume of air passing to the carbureter, so that only a sufiicient amount of air for the immediate need of the carbureter will be supplied to the latter. lrVhen the demand on the system increases, however, pressure within the reservoir falls and the bell descending will open the valve 38 so as to increase the air supply and consequently the output of the plant. In order that the size of the port 25 which leads to the upper part of the carbureter may be varied to suit varying conditions, means for a lateral adjustment of the valve 38 are provided, such means consisting in a cranked shaft 50 having its bearings in the sides of the air-chest. The cranked portion of the shaft 50 engages lugs 51 on the said valve so that when the shaft 50 is rotated in its bearings the valve will-be moved sidewise or at right angles to its other line of movement within the airchest,-and. the ofi'set or wing 39, which normally controls the port 25, will be so disposed relative to the saidport as to diminlsh or increase the operative'area of the said lowerportions of the carbureter desired. In

Fig. 4, the valve is shown in its-normal position-and reciprocation of the valve through the automatic valve-operating means describedabove will open both ports 25 and 29 for their full width, The cut off edges of the valve are made so that both ports are closedexactly at the same time and when the valve is moved to open the ports-both ports are opened to the same definite extent.

Movement of the cranked shaft in the proper direction will throw the valve to the position. shown in Fig. 5, in which position the operative area of the port 25'1s diminished-so that reciprocation of the valve will uncover only a art of the full width of port 25'. A. urther movement of the cranked shaft 50- will result incoverin the port 25 with themain body portion 0% the valve, as shown in Fig. 6' in which position both ports 25 and 29 will be controlled by the body portion of the valve, and the function of the offset or win 39 will, for the time being ibe intermitte The operation of the apparatus .as above described is as follows: The gasolene' is fed to the carbureter from the storage tank 14 through the trapped pipe 15 and rises in the boiler to the level of the gasolene in said storage tank. The heavy unvolatilizable portions of the gasolene and foreign matter contained therein settle down into, the sedi ment vessel 17, from which they may be removed from ti'me to time in the manner before described. Steam is admitted to the heater .7 and quickly boils and volatilizes the gasolene which surrounds it in the. boiler 5 3 cend into the fully charged therewith.

and the resultant hydrocarbon vapors asessel 2. The pure vapors, or those unmixed when they come in contact with the cooler portionsof' the vessel 2 and run down the interior of the latter and are caught and conveyed by the pipes 11 back to the bottom of the boiler. The vapors arising from the boiler,-however, are met by a finely divided spray of absorbent air .which issues from the lower foraminous end' of the, air distributer 20, the incoming jets of air commingling with the hydrocarbon vapors and becoming Normally the heater evolves more hydrocarbon vapor thanv the air supplied by the.

distributer can absorb, and the surplus vapors, as before stated, are condensed and rewith air quickly condenseturned to the boiler .in their liquid state where they are again volatilized. The air or other cooling medium encompasses the pipes 11 and keeps the gasolene therein in a liquid "state, so that volatilization will occur only in the boiler, and as the vapors meet the incoming jets of 'air the air and vapors are intimately intermixed, as before stated,

and pass to the upper, part of the vessel 2, coursing the foraminous diaphragm 27. which aids in efl'ecting the intimate intermixture of the air and'vapors. When the mixed air and vapors reach the upper part incoming diluent air into a fine spray-like state sothat it will readily intermingle with the previously formed mixture of air and vapor, and the resultant mixture in passlng through the perforated tube 33 is again finely divided causing the constituent elements of the previously mixed air and vapor to, be once more intimately intermixed and thoroughly commingled before finally passing on" to be consumed. The disk 34 acts as a deflector to cause the mixed air and vapors to pass around in a (circuitous course as it mixes with the diluent air and also tends to retard the mixture to a slight extent at this point to afford time for the intermixture to be thoroughly effected.- The perforated diaphragms, partitions and the; like, before described, not only operate to finely dividethe air and vapors in their passage throughthe carbureter, but also act as condensers which aid in condensing the surplus vapors absorbed by the air and-return the same to the boiler in liquid form; The condensing sur faces of the carbureter also operate to cpndense the watery vapors to water which drops by gravity to the, bottom of the vessel 2 from which it is conveyed by the pipes 11 to the bottom of the boiler, and owing to its being much heavier than the gasolene passes by the pipe 15 to the settling vessel 17 All water" of-condensation is thus. removed from the carbureter and is not permitted to interstorage 'tankl l and is-connected with the,

c'arbureter' whereby any vapors resulting from volatilization occurring in the stora e tank will be. led ofl from the latter and discharged into the carbureteri This pipe can attach as well to any pipe connected with the pipe 35 and is intended alsotoequalize the pressurewhereby the same level of gasolene will be found in both storage tank and .chamber 9. A drip-basin consisting of a cup-shaped metallic vessel 56 open at its up- 56 and is discharged by the pipe 57 against the inner side of the vessel 2 down which it -flows to the pipes 11. When the apparatus is 1n operation the blower 36 is kept in constant rotation and operates to supply air to the carbureter' through the supp y pipes 24and 28. Should the air be supplled through these two pipes faster than the demand upon the carbureter necessitates, then the pressure would accumulate in the reservoir41 and lift the bell and through the mechanism before described shift the valve 38 and partially or. fully close the ports 25 and 29 .and thereby automatically control the supply of air to the car-' bureter. By means of the hand operated mechanismdescribed the relative operative areas of the openings of the ports 25; and 29 can be varied to regulate the relatlve proportion of the volumes of air supplied to the lower and upper portions of the carbureter whereby a gaseous mixture of airand vapor may be furnished that will practically be of a constant quality.

' The heater 7, used in connection with the I boiler is shown as being supplied with steam butwvherelsteam' is lacking, any other suitable heating device can be ap lied. v

In Fig. 7 of the drawings have shown a slightly modified form of vaporizer. .Referring to said figuregthe-numeral-2' indicates the carburetingvessel provided with an air inlet 28 and gas outlet 35 at its upper end,

the boiler casing and an air inlet 24 at its lowerend, in the manner before described; In such arrangement, however, the air distributer 20 before de v scribed is dispensed with and instead of arranging the vaporizer directly .under .the' lower end of the carbureting' vessel I ar ran e it to one side as shown, the numeral5 indicating the cylindrical boiler casing provided at its upper and lower ends respectively with elbows 6' and 6", theformer of which is-connected by a horizontal pipe 6 with the bottom of the carbureting vessel, and the latter is also connected with the bottom of said vessel by a bent pipe 11, the horizontal member of the latter being preferably given a slight downward dip or inclination toward the elbow 6" to cause'the- 'water of condensation todrain ofi by gravity. 1 Arranged concentrically within 5 is the heater comprisclosed atits opposite ends ing a cylinder 7 and fitted in and projecting throughthe upper end-of the elbow 6. Extending into the top of the heater casing is a. steam'inlet -into the bottom of the carbureter passes off by the pipe .12 and extending-from thelower end thereof is a steam exhaust pipe 13, by means of which a circulation of steam or other suit-able heating medium may be maintained through the casing 7 to keep the latter heated. The air inlet pipe 24 extends horizontally through the bottom of the carburet-ing vessel 2 and is disposed concentrically withinuthe horizontal pipe 6, terminating at a point adjacent to the elbow 6 where said pipe 24 is rovided with a perforated cap 24', by which means the .air is introduced into the elbow 6' in a finely divided condition. The hydrocarbon is fed into the bot-tom of the boilercasing by a trapped pipe 15, as before. y

The operation of the modified construction of vaporizer immediately above described will be readily understood; The hydrocarbon is fed to the boiler in the manner before described and is there heated and vaporized by the heater 7. The air from the blower is fed through pipe 24 into the elbow 6' where the air and vaporized hydrocarbon meet and commingle and pass by pipe 6 2' The vaporized air rises in the carbureting vessel where it meets and is diluted by the air introduced through the pipe-28 and then pipe 35. The heavy port1ons of the vapor that fail to beabsorbed by the air condense and return to the boiler I through the pipe 11' and elbow 6" and are again volatilized; so, also, any watery vapors that condense in the carbureting vessel drain off through the pipe 11', elbow 6 and trapped pipe 15 to the settling chamber before described. The principal operation, it will be noted, is identical with that first described, the details of construction only being slightly modified.

What I claim is- 1. In a carburetingapparatus, the combination ofa carbureter, an air pump means leading therefrom for supplying absorbent air to the carbureter, means also leading from said pump for'supplying diluent air to the carbureter, and a regulating means connected with the diluent airs'upply to control the amount'of airjadmitted to the carbureter. 4

2. In a carbureting apparatus, the combination of a carbureter, an air pump means leading therefrom for supplying absorbent air to the carbureter, means also leading from said pump supplying diluent air to the carbureter, and a regulating means connected with the diluent air supply, operating by the variations of demand on the apparatus.

3. In a carbureting apparatus, the combination of a carbureter, a'means for supplying air thereto, a regulating means connected to said air supply and said oarbu reter, said regulating means controlling the said valve to proportion the air supply to into the trough.

both the said parts of said carbureter.

d. In a carbureting apparatus, the combination of a carbureter, a means for supplying air thereto, a regulating means connected with saidair supply and said carbureter, said carbureter having upper and lower air supply ports Which'have respective connections with said regulating means, said regulating means controllingithe air supply to the'upper and lower ports of said carbureter, an automatic valve associated with said regulating means to control the air supplies to both ports of said carbur'eter, and a manually operable means connected with' said valve to proportion the said'air supplies tosaid carbureter.

5. In a carbureting apparatus, the combi nation of a carbureter, a means for supplying air thereto, an air chest having a valve therein, said air chest connected to said air supplying means, separate connections leading from said air chest to said carbureter to supply air thereto, a manually operable means connected with said valve to proportionately regulate the air supply to said carbureter through said separate connections, and said valve being automatically controlled by the variations of demand on the apparatus.

6. In an apparatus for carbureting air, the combination of a carbureting vessel, a trough therein, portions of the trough engaging the wall of the vessel, a receptacle Within the vessel to receive liquid of 'condensat ion and an outlet opening from the receptacle against the wall of the vessel to per-' mit said liquid to flow down the same and 7. In an apparatus for carbureting air,

the combination of a, carbureting vessel pro-;

vided at oneend with an outlet and at its opposite end'with an interior annular flange, a hydro-carbon receptacle supported by said flange and opening into the vessel a heater arranged within the receptacle, and pipes connecting thevessel and hydro-carbon receptacle.

8. In an apparatus for carbureting fair,

the combination ofa carbureting vessel provided at one end withan outlet and atits opposite end with an interior upwardly curved annular flange (mnstituting a trough to catch liquid condensation, a hydrocarbon receptacle supported by said flange and opening into the vessel, a heater within the receptacle and pipes to convey liquid of condensation from said trough to the.hydrocarbon receptacle.

9. In an apparatus for carburetingv air,v

boiler,

a carbureting receptacle, means for supplying vaporized hydro-carbon to said receptacle, and an air distributer arranged within Within the first named receptacle,land means for causing a circulation of steam within said second receptacle, and means for collecting llquid of condensation in the carbureting vessel and returning it. to "the" heatinggre;

ceptacle. v v 11. In a gas generating apparatus, the

combination with a carbureting vessel provided at one end with a hydrocarbon inlet, a heater for volatilizing the hydrocarbon in the'boiler, a gas outlet at the otherf'end off 1 the vessel, an air distributer arranged inthe rated diaphragm arranged in ,thevessel between the air distributer and the gas outlet and near the former, means for'feeding air point remote rom T to the distributer, and means for'feedin air; to the said vessel at a the distributer.

12. In a gas generating apparatus, the I combination with a carburetingve'ssel provided at one end with a boiler 1n comlnunlhydrocarbon inlet, of a heater for volatilizing the hydracarbon in the boiler, a gas out-" let at theother end of the vessel, a' conical perforated partition surrounding the gas outlet at one end and contacting with the sides of the carbureting vessel at itsother v end,'an air distributer arranged in the vessel in proximity-to the boiler, means for 110, feeding air to the vessel around the perfov feeding air to the distributer, and mean's for rated 'artitioncombination with a carburetingvessel provided at one end with a boiler in conununi cation with said vessel and provided. with a hydrocarbon inlet, of a heater for volatilizing the hydrocarbon in the boiler,a as out 1; let at the other end of the said vesse a per- '12(-) v forated pipe arranged in the vessel "about the gas outlet and closed at its inner-end, an air distributer arranged in the vessel in proximity to the boiler, means for feeding air to the distributer and means for feeding air to the vessel at a point remote" from the 101i cation with said vessel and providedyvith 2a a i 13. n a gas generating apparatus ,i; thef 14. In a gas generating apparatus, the

combination with a carburetingvessel provided at one end with a boiler 1n communication with said vessel and provided ;W1th a 9 vessel in proximity to the boiler, -a perfothe'mner end of sald pipe and hydrocarbon inlet, of a heater for volatiliz'w ing" the hydrocarbon inthe boiler, a gas outlet at the other end ofjthe said vessel, a perforated pipe arranged in -the vessel about the gas outlet, an im perforate disk fitted on rojecting laterally beyond the latter, an air istributer arranged in the vessel in 'roximity to theboiler, means for feeding air to the vessel at a point remotefrom the boiler.

15. In a gas generating apparatus, the

combination with a carbureting vessel provided at one end withia boiler in communicacombination'with a carbureting vessel pro I tion with said vessel and provided with a hydrocarbon inlet, of a heater for volatilizing the hydrocarbon in the boiler, a gas 'outlet at the other end of the vessel, a conical perforated partition surrounding the gas outlet at one end and contacting with the sides of the vessel at its other end, a perforated pipe communicating at oneend with vided at one end with a boiler in communication with 'said' vessel and provided with a hydrocarbon inlet, of a heater for volatilizing the hydrocarbon in the boiler, a gas outlet'at theother end of the vessel, an air dis t-ributer arranged in the vessel in proximity air ,distributer, means for feeding to the boiler, means for feeding air to the air to the vessel at a. -pomt remote from t e boiler, a catch-basin arranged in the vessel between the inlet and outlet end thereof and arran ed end, of a cylindrical oiler having an open' to eatch the liquidof "condensation, an a p pe leading from the catch-basin and arranged to discharge the contents thereof against the interior of the-carbureting vessel. 17. In j agas generatin apparatus, the combination with a vertica carbureting vessel providedwith a gas outlet in its upper end, of a cylindrical boiler opening at its upper end into the bottom of said vessel, a cylindrical heater fitted concentrically in the boiler and closed at its ends, means for introducing a heating medium in the heater, means for introducing hydrocarbon into the boiler, and means for introducing air into the carbureting vessel.

18. In a 'gas .generatin apparatus, the combination with a vertica oarburetingvessel provided with a as: outlet in its upper up er' end opening into the bottom of the car ureting vessel to permit hydro-carbon vapors to use directl from the boiler into sa d vesse, a cylindrical heater fitted'cone riorly of the boiler an centrically in the boiler and closed at both its ends, a steam supply pipe leading 'into' the heater,an exhaust pipeleading from the bottom of the heater, ipes arranged exteconnected at their opposite ends respectively'to the bottom of the carbureting vessel and the boiler to convey liquid of condensation from the vessel to the boiler, a hydrocarbon feed pipe connected with the bottom of the boiler, and means for introducin air into the carburetingvessel, substantia 1y as described.

19. In a gas generatin I apparatus, the

combination'with a vertica 'carbureting vessel provided centrally in its lower end with an upturnedannular flange and with a gas outletin its upper end, of 'a cylindrical boiler having an open upper end fitted in said flange, a cylindrical heater fitted concentrically in the boiler and closed at its ends, means for introducing a heating medium in the heater, pipes arranged exteriorly of the boiler and connected'at their opposite ends respectively to the bottom of the carbureting vessel and the boiler, a hydrocarbon feed pipe connected with the bottom of the boiler, and means for introducing air into the carbureting vessel.

20. In a gas generati'n apparatus, the combinatiin with a vertica carbureting vessel provided at its up er end with a gas outlet, of' a cylindrical oiler havingan open upper endcommunicating with the carbureting vessel, a hollow annular collar fitted on the lower end of the boiler shell, pipes arranged exteriorly of the boiler and connected at their opposite ends respectively with the bottom of the carbureting vessel and the hollow collar, a cylindrical heater closed'at its ends and inserted in the boiler through the annular collar, means for introducing a heating medium into the heater, means for introducing air into the carbureting vessel, and a hydrocarbon feed connected with said hollow collar.

21. In a carbureting apparatus, havin its lower portion adapted to recelve hy rocarbon to a height corresponding to the level of the hydro-carbon in the storage tank through I a; hydro-carbon pipe connection made at the lower portion of each of same, and another pipe connection to each at'a oint above the hydrocarbon levels, the

ower end of the carbureter supplied with a heatin medium, whereby vapor generates from t e hydro-carbon fluid, and rises to a point above the level of the liquid hydrocarbon, in combination with an air supply entering the carburetor at a point a ove said liquid level as an absorber of said vapor and a gas, outlet to the carbureter.

22. In a carbureting apparatus, a carbureter and a hydro-carbon storage tank a pipe,'connection between the lower portlon of said storage tank. and :carbureter respectively, the said carbureter and tank being In testimony whereof I have hereunto set arranged in substantially the same plane so my hand in presence of two subscribing witthat the height of the hydro-carbon in both nesses.

will be substantially constant, means for 5 heating the carbureter to generate hydroi carbon vapors above the level of the liquid hydro-carbon, and an air supply entering Witnesses:

CLARENCE M. KEMP.

the earbureter at a point above the liquid JULIA MCOANN, level to supply said vapor with absorbent air TERESA M. BLONDELL. 10 and a gas out e t leading from the carbureter.

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