US1008274A - Producer-gas apparatus. - Google Patents

Description

J. M. W. KITCHEN. PRODUCER GAS APPARATUS. APPLICATION rxLBD mma, 1909,

4 SHEETS-SHEET 1.

Patented Nov. 7, 191.1.

Inventor m Atty J. M. W. KITCHEN.

PRODUCER GAS APPARATUS.

kPPLIcATIoH rum mns, 1909.

Patented Nov. 7, 1911.

4 IIEBTS-SHEET 42.

In ien tor Atty J. M. W. KITCHEN. A PRODUCER GAS LTFARATUS. Arrmcnmn FILED una, 1909,

1,008,274. Patented Nov. 7, 1911- Q f d L J. M.' W. KITCHEN. PRODUCER GAS APPARATUS.

i Patented NOV. 7, 1911.

l APPLICATION FILED MARA?. 1909.

l1l SHEETS-SHEET 4.

Inventor est:

check the draft through the producer when desired, and for keeping the burner B cool.

B3 is an air inlet valve. B* is a compressed gas ronduit. I5 B5 is a gas conduit from the tank X.

BG is a heat refractory lining. B is an air conduit. Bs is a gas lighting aperture. C is a primary heat inten-.hanger for heating air, steamand exhaust gaseous products of combustion.

C is a non-conducting lining. C2 (Fig. 1) is a cast iron heat-interchanging device.

C3 (Fig. 1) is a conduit for conducting pre-heated air, superheatcd steam, and gaseous products of combustion into the base of the gas producer.

C* is an outlet for partially cooled producer gas.

' C? is an explosion relief lid.

D is a gas-cooler and steam generator. D1 is a. steam dome. D2 is a hot water outlet. D3 is a hot-gas inlet.

D* is a feed water chamber. D5 is a feed Water inlet. Ds is a cooled gas outlet. D1 is a steam outlet. Ds are heating tubes. E is a scrubber. F is an .air blower. F1 is a hot-air conduit.

G is a gas exhauster and compressor.

H is a Water cooler and air heater for cooling jacket-Water and heating air. I is an internal combustion engine.

J is a gas burning vdevice for auxiliary heating purposes.

K is a heat economizing boiler. L is a steam engine. M is a condenser. N `is an exhaust steam conduit. N1 is a compressed air duct.

N2 is a duct for gaseous products of combustion.

N3 is a gas main.

N* is a three-way mixing device for compressed air, steam or exhaust gases.

5 O is a shaft. Y

P is a drive-pulley. P1 is a friction clutch. P2 are belts. Q, is a dynamo. R is the sub-base of the producer.

R1 is a shoveling surface for the removal\l A of ashes..

S is a tire-brick lining. T is a fuel feeding cylinder. 5 T1 is a non-conducting easement for the fuel feeding cylinder.

U is a non-conducting plaque. Ul are poke hole openings in the plaque U.

U2 are revolving slides for covering the openings U?.

U3 are handles to actuate the sliles U2. U are poke hole openings. U5 is a metallic frame in the plaque U.

V is the top plate of the producer' base. V1 is an annular flange. (Fig. 2.) V2 are dead half-rings. V 3 are projections on which the half-rings rest.

V 4 is the halting surface of top V. V5 is an annular llange. VG top flanges to sides. (Fig. l.)

)V isA a gas conduit for cool gas leading into the upper part of the producer. (Seev Fig. 8.)

)Vl is a cool gas passage to interior of gas exit duct )V )V2 gas duct.. )V3 gas exit aperture. )V non-conducting incasement to gas duct T2. Y annular fuel-feeding chamber@ )V0 non-conducting plaque.- )VT fuel feeding magazine. )Vs exit. duct. )V9 gas traversing duct in the refractory lining of the producer. )V0 gas passages leading to the gas duct )V2 X is a storage tank.

Y is a grate frame.

Y1 are retaining blocks.

Y3 are side plates of grate flange support in grate frame. grate frame.

Z is a grate bar shaker arm. Z1 shaker bar. Z2 transverse support for atuating shaft.

Z3 is a shaft rocker sleeve and arm.

Z4 is a link.

Z5 is a retaining sleeve.

Z*3 is a rocker sleeve for engagement. with the handle A3.

Z'T is a plan of a grate bar.

Za are grate bars 1n elevation.

Z is a rocker bar.

Zc is a hase of support for actuating shaft.

Zd is a bell crank shaking device.

Aa is an actuating shaft. Ab is another base of support for the shaft A".

In further description:

The producer basa-It is desirable to frame. Y* Y6 legs of ,y have the ash-bed of the burning fuel rest on a grate or ash-table, from Wluch the ashes can be frequently dislodged downwardly, in order to keep the ash-bed of a uniform thickness, and the production of gas uniform in quantity and quality. The strucure supporting the ash-bed and the superimposed fuel mass should differ in form according tov the nature of the fuel that is to hegasied. In order to secure easy access to the base of the producer for the introduction or removal of a grate or ash-table, I construct the base of my producer in removable sections; one or 'more of the sections being of such size that if the section is removed, the grate or ash-table can be introduced into or removed in itsentirety from the base of the producer for inspection, repair or exchange, without dismemherment of the gmle or ash-table. The. shape nf the hase, may he annular; hui preferably should he rectangular. ln either eme the side walls are eonslriieled in See timel nf sullicicnt size l allow 'for the removal of the. entire. assembled grate er a htable, which preferably would he hehl il; :i grate-frame Y. Inamnucii as the fuel eeutainer ffhnul preferably he. eonsirluzted in he forni of a eylinfler, I Construct the tup plaie Y (see Fig. 4) el 1n v hase'sn as te unite it h v means i the annular Heng@ Y (see Fig. l) h v helling* with the cylindrical Slmll of' ihe fuehennluiner of the prud* L' The m'n'eriicns V3 are east inie'fral will:

he rep nl 'he hase, and upon lheae and en ilse annular flange V5 remix the lwe hall Emailings upon which are huilt he "nelriek lining of the producer.

The per11emlieulnr sides 0f he prnfhleer have il V4, which are helled to the top and corner flanges VH #hi-rh zgllher. Asher-ins, er (u'her ce is inhfrpesed heweeu ihe opposing surf: is# in :mhling the sides :mul ffp Hf the amare hase with the fuel. e011- ainPr. The "use is. Se efmslrnelezl thai :all he :ninos thereinto may he elogwrl, .su lha a l'nrcecl inw the hase, n eunsflera i p2 me muy he nurniained in llie haie and fuel container. By means nf the hlower 1"', in eonjuneien with the exhauster G, .fr :y desirable pressure of nir lier emnhus' tien Juv he muinfaiuerl in. lhe prmlu(` l und El fiieilllales he lufrnirlgF (if eerialn hard i Xiure fuels. The prmlueer lun` means mr g fuels of rho .illesi varia- 'tien in ehrnzr'ler nml hir flrueruiing 'fuel gus nl: verk' :liverglnl {hernxir values.

The .#11313 ln urfvler 'lzafe ashes may he Crmwniei; vv remuvefl, l :wrange the suhhahe, lv. of ihe prlulurerr whieh if: malle of lfrifk azul runvrete, 'wi'rh a waei' seul prn viclesl willi .lip plaie which ue'" as e. suppnrl fel' lari hf' lhe musmiuv '-.vurli (il: the sulrhz, aL. well iw hn' prf.venl'iu' r ihe enirunee of through ihr water wail, 'The inner sideA the :ahh-haw Slope lnwurll ils renier Sn lha ashes will gr "linie tu the eener. :nul eu thai. milj; :i relalivelv Small l :amen u'i 'it miler 1n ille waer .wal will he epnse t0 evapuraliuu il: a gaf: pnnr in hv- (lregen la wished. The shuveling' azrfahe Rl is in one eenlinulubv plane u that ashes @un he Pnnvenienlly shuveleal freni The Sulhase. ln theh ra-e t where l uw in ihe prudueer a grate livilled inte er-liens, the uhhase is (lividi-l inlu as mamv Wale; seals as This shaking frate may l l l l 1 may he. it is usuali)v suppnrlefl and hel'l in plm-e in'lhe hfie (lf the prrulueer h v hehL' hehl in a leur legged frame (see Vifrx. 5 uml S; whirh van he li l lulu its plaee under [he lire openiull ai (he hellem nl' lhe f'xel container, ur willulrawu friuli the hase. The rmneis helfl in place hy Ineens uf (1m-ner hleelis Vl, plaeell hetween the leg;- l`eel ainl the slle walls of the hase. (See Vig. The 'F1-nine. is ezlnqruelwl nf lhe lille pieces Y having the lla! "e supruvrihV Y* (eee Fig. Q); fml the legs Y The legs are heh? in p0:\.il'ion h v helling in lhe aille pier s' :nul 'partlysupper-l. ihellungen Y. 'lfhegrah proper refts in thi frame al the tup nl' the flungl uppnrls Y, .funi the frate hars have frame nppmire lo and farlhe frein J nf the han* through which Un :u:- iuati j; :shaft A i5 inherlueerl and suppui-lvl al, he l'rnnl o -llw prnfhu'er, l` a innrverse har Z for surqmrli sgr the other exnl l (he actuating hal'i. Th :relu-lling' alla :a thus hehl n1 permanent. horn'fnual pugiuu, having a Separale haar nl .-uippnrl al eiiher elnl. On the aeluav'iuggj ial'i i' ,ula\r-levire Z3, whirh i5 emula-raul h v :i link rf with the shaker-har Z1. Inside (he fille uf the hase is holle-ll retaining sleeve Zi', and ouin-ille fhe hase-plate hulletl azul! her sleeve. '/f Fig. 2b) having :1v lria L'ulnr head 'for engagelnen willi the lov-1' parlv el the grate dialing hzuulle. .l ily :z-varm nl (he lwn a;

:nlrr ing shall, is herA in p0.' whers the handle A is ewillaled the url-iuting :hall is partly revuhefl und the nminn is em;- vexl In illey gruie hun- ZF uf the g'rzrie. l1: .Vlug 'fr l show :i mlnliiierl lnrui (if un' g'lllv v ilv'ing vleviee. invwlving un applica-V lun. nml Y* (luf-eel between (he grille hars and through the npr-ning euvel-eil hy the loer A2. A

Square l'nrni of girate haga the advantage of a leswxzel hrst enst, a grenier lurahili}-' of the :g1-alf' hars. and avuirk confusion when 0rlerng renewals, hy having the grate bars all n? ene shape and size. Furthermore, hv having a square grate, the grate surface of as is shown in Fig. 4 and each section can` a large producer can he constructedin sections, in which case cach section would be placed over au individual sub-base pit such be'shaltcn sciiarately by hand without requiring undue manual force. For the removal of any clinker that may, accumulate on the corners of the square grate` special poke holes A5 are provided on the sides of the base, near the corners of the base immediately above the level of the grate surface. The grate hars Z are formed with cutting edges which cut and, coxnininute clinlters that may he formed in the producer; the action of the grate when the hars are rocl-zed being to grind the clinkers and' pass the ground material downward through the grate.

The fuel Containern-The fuel-container is preferably iliade of cylindrical shape; but under special conditions, especially where very hard fuel is used, it may be made of rectangular form. In small sized iroducers, the fuel is usually fed from the top through one feeding device in the center of the producer; but in large generators a number of feeding devices may be used in securing a better distribution of the fuel.L In other cases the fuel is fed from an annular magazine. The fuel feeding conduit is preferably carried to a depth in the fuel-container that will prevent too unich fuel being fed onto the fuel bed, the depth of fuel that is desirable being determinable by the nature of the fuel. The fuel feeding conduit T, (sce Fig. 2) when fusing fuel is used is protected by an annular non-conducting incasement T1 composed of heat refractory material in which is .embedded a woven wire web to hold the refractory material together in case of cracking of the incasexnent. In

some cases I 'water-jacket the fuel feeding is usually made with a. cast iron frame U5, embedded in the plaque. As a further pro conduit. To prevent damage from too much heat to the top plate of the producer I may introduce a refractory plaque U, having poke holes U1, and cover slides U2, which are operated by the handles U3. This plaque tection against overheating of parts, I may inject cool producer gas through the conduits A9 and `apertures A". I sometimes also may inject cool producer gas at the base of the fuel container through the apertures A" to secure a cooling effect around the pe- 'riphery of the fuel mass for preventing the accumulation of clinhers on the fire-brick and preventing the formation of too much carbon dioxid at that pointe"r Using bituminous fuel: The form of producer 'shown in Figs. ,1 and 2 is especially adapted to the use of anthracite and other fuels of hard texture, having small amounts of volatile constituents.' Bitumnous coal can be used in it by careful management;

but I prefer to use a different principle in the construction and management of a producer for the burnincf. of soft bituminous coal. For this special fuel, instead of applying old principles in preventing or getting rid of the tar, which 1s so easily volat1l ized from such fuel, I adopt the principle of providing a producer having an unusually wide fuel container or cylinder, and secure a long horizontal travel of the burning gases underneath the fuel bed, having a considerable part of the combustion carried on at a point directly underneath the place where the fuel gravitates onto the fuel bed, and have the gaseousyproducts of combustion conveyed along underneath the fuel to a point where the fuel has become more or less eolccd, and then have the gases risethrough the coked fuel, and out through a gas exit; at a higher level in the producer.

In this way I act more in accord with the than is gained by what is called the inverted combustion process, in which the volatilized gases are drawn downwardly through the ignited fuel mass. A

In carrying out the principio I have stated, the fuel may be fed at the center of the producer, as in F ig. 7, in which case the combustion would proceed from the center outwardly; or, the fuel may be fed from an annular feeding magazine at the periphery of the producer, as in Fig. 3; and the oombustion would proceed from the outside of the producer `to a. central point. T o secure satisfactory results in this connection, the character of the grate used must be suited to each particular case. Where the fuel feeding is from the cimtei', I prefer to have a roun grate so constructed and arranged that a relatively large proportion of the air needed for gas generation would pass through the grate at or near the center, while a rela.-

1 tively small proportion of the air would ass through the grate at. its periphery'. he

surface of the grate shouldv be arranged so that its agitation through suitable mechanical means would secure a centrifugal conveyance. of the' fuel. In case the fuel is fed periphcrally as in Fig. 8, more air would be fed at the periphery of the grate, and Vlittle or no air would be fed at the center of the grate. In such cases, I prefer to have a solid plaque W of heat-refractory material placed in the grate at the center to entirely prevent nir from passing throufrh the grate at that, point. In some cases, where the fuel used produces a small amount of ashes, it i's through the grate or ash-table provided. c

For this purpose'I prefer to use a clinker Provision must be made in all cases r check draft l, though less effectively, in the grinding grate. In thc form ot' producer! shown in l-`ig. T the gas passes through the colo-d fuel at'tho peripher)` ot' thc fuel mass, thrrmgh the gas passages Vv and through tho gas conduit lV", which is formed in the 1 upper part of the refractory lining of the prmlucrr, and linally out" through thc exit Much tarrv Yapor is changed into a fixed gas b v being brought into Contact with the hot brit-l; work in which the` gas passaf's "W" and W" are formed.

flzf: for Erftncon-luasinuch as there is always more or less tar carried out with producer gas fe om thc zone ofY distillation of the fuel bed, i' iinrmiucc in my apparatus a means for highly heating the newly formed gas, decomposi gwater vapor in the gas, and burning' the. larry vapors in the Vas, trans forming 'the vapors into a fixed gas. The principi(` involved is thaty ot' subjecting the newly tornai-d gas to a closn impingenrcnt with the high coimentratcd heatJ formed by a llame-blast mechanically forced and concentrated over and on surfaces or matters capable ot' being highly l Hated in the line, of travel of the newl)` formed after its gen eration in the producer. The thune used may he. formed y the prc-adnixture 0f a coinhust 'ole gi v sach as producer and air, one or other, or both, boing under me chanically produced pressure, and eithercoid or preheated. 'l'he carrying out. of this principle may be practiced in various Ways. (lne method is indicated,liagrannnatically in the drznvix'igs by the devices B shown in Fig` l. This device contains a burner B, which is supplied with pre-mixed air and as through the gas conduits B* and B5 and me air conduit BT. The gas mabv be lighted through the aperture B, or by elect ical ignition, or in other ways. An intense. heat is evolved by the burning flame, which heat :nav bc moditied and wntrolled by the axnhunts of gas and air forced through the burner. or by means of the check draft B2 controlled by the air inlet B3. The llame -blast highly heats the refractory lining B", and the gases emerging from the producer A are conveyed 'up around thc burner B, and follow the under side of the refractory lining B, the tarry vapor and water vapor in the gas bein transformed intoa fixed gas through high )eating of the newly formed gas. ln starting the burner, gas is taken from the storage tank X, which may be ot` any convenient typo, and which is kept, charged by means of the gas cxhaustcr and blower (scc l"ig. Il). Air alone ma)v be injected in any desired way, as through the line of the travel of the gas to secure the dcslrcd change 1n quality ofthe gas. and the arraugcawnt of thc burning device can be of l :my ot' numerous types. l prefer to inject Cleaned producer gas under pressure, burn- 3 ing the gas with air; the injectivc etl'cct. carrying 1n a suliiclent amount of an' with the gas. If thc gas is forced directly from the gas exhanster and blower, when that, dc-

vicc stops runnin", injection of thc gas and air also nccessarilj." stops, as is do. table. But an auxiliary gas apply should he provided to burn the tarry vapors volatilizcd, when the blower (i is not running.

In some cases the device ius-t described may bc advantagemisly replaced by a 'fur-- nace burning tar-frcc colteiin two tru'nzufcs cylinders used alternately, as in the usual method of ii'atcr gas. production. It will he. understood that the special method employed in fixing the tarrivapor varies with the nature of the fuel used and of the gas required. .'hcn gas wanted high in therinic constituents, there would he intermissirns in heating the tar destructor, followed bu." runs through it of the gas evolved in the gas generator. Having control of compressed air and of the steam supply, l can malte a gas that, is practically.' a water gas high in hydrogen content, or one that is almost a pure car bon monoxid gas, or any admixturc of the two. When running a rich gas by the intermittent process, thel gas would be stored in a tank of sufficient sim to finnish a supply of gas c.-ntinuouslvv, bridging over the so cath-d blowing periods.

sible heatr of the newly formed gas increased in passing though the device l. In

order to economize some of this heat, l pass l 4of the. heat o the highly heated gases before the emerge through the. exitV C". The upper part of thc devirc C: is connected with thc three-way mixing device. N. When using coni fuer having only slight tarry elcments, the device C is omitted, and the reta,- tively moderate heat of the newly formed gas is almost entirely absorbed in the higher lcvcl of the device B, inwhich case the mixing device N* is attached directly to the base of the producer.

The nzwz'ny lavica-Phe mixing device N* (sce Figs. 2 and 3) is arranged to inject as much compressed air, steam or gaseous 'products of combustion under the producer grate as may be needed, through'the action of a forced air blast produced by the. blower F and forced through the pipes F* and N1 (scc Fig. 3). Exhaust' stt-.am is drawn through the conduit N from the upper part of the condenser M, which condenser receives the exhaust steam from the engine L. The

x 1 gaseous products ot combustion are conveyed through the conduit N2 from the bottom part of the economizer boiler K, and the relative amounts of exhaust steam, air and cooled gaseous products of combustion, are controlled by suitable valves in the several conduits N, Nand N2, the injecting etl'ect of the 'compressed air forcing the exhaust steam and products of combustion and securing effective adxnixture of the gases and stcam. It will be.' obvious that through the use of this device and connected parts, a large variation in the nature of the, gas produced can be secured.

The gas coolen-The gas cooler D is used to cool thelgas, economize the greater part of the balance of the sensible heat of the ncwl'yformed gas and in condensing any undccomposed tarry vapors and ammonia. vapors in preparing the gas for the scrubber. The steam itany is produced in this device, I usually utilize expansively in motor work in a manner indicated in Fig. 3, and utilize the exhaust steam after its expansive work is accomplished in the generation of gas in the producer. The gas cooler D is of special structure to provide against damage to the heating surfaces of the cooler from highly heated gases and sulfur compounds. To provide against such damage, all the heating surfaces of the boiler proper are. submerged in water. Cold feed water enters the device through the inlet'DL3 into the water compartment D", and passes up through the water tubes D8 into the high level water space luider the steam dome Dl. In case thisP device is-connected with a heating system, the hot water passes out of the outlet D2, while steam, either for power or heating purposes, passes through the apertures'D. The hot gases pass into the device through the inlet D3, and down through it, and outJ through the aperture D, progressively heating the feed 'ater which asccnds through the tubes DS. B v having the gas cooler of sufficient size, and using very cold feed-water for introduction into it, the heat of the new gas can be absorbed at a high level into the water while the tar vapors will be condensed on the water tubes at lower levels, and thus protect the heating surfaces from injury due to sulfur vapors. I have found this provision asatisfactory one in preparing producer gas for use.

7 71e gas tanks-If low grade producer gas is being generated, and this gas is only being burned in the gas engine of the system, no gas accumulating tank would be necessary. But if a higher grade of gas is being pro.-

duced by the intermittentprocess of gas generation, or if the gas is burned otherwise than in the engine, a means for accumulating a small store of producer gas would be needed in the working of the apparatus in starting and to secure an even pressure in the delivery of the gas.

In the plant shewnin plan view in Fig. 3, the gas is drawn through the producer, tar destructor, primary heater interchan er, gas cooler and scrubber by the suction e -ect of the internal combustion engine I, and the exhausting effect of the exhaugter G, in connection with a moderate plenum effect of the air blower F blowing air into the base of the producer. The gas, besides being used in various places for a number of uses, as' Vfor example, in the engine I may be used in the burner J to effect an auxiliary heating of water in the econornizer boiler K, along with'the heating of the water effected by the exhaust gases from the engine I, which are exhausted through the econoiuizing boiler Ii. The steam` which is generated in this boiler runs the steam engine L; and the kinetic energy of this engine and that of the internal combustion engine I is yoked up by differential pulleys and belts through the shaft O. The motion of this shaft actuates the dynamo Q. The exhaust steam from the engine is either condensed in the condenser` M, cris injected under the. producer A along with more or less of the waste cooled gases o combustion that have passed through the economizer boiler J, from the engine I. In such an installation there is a large economy in fuel cll'v-cted in creating power through the co-aclion of the various elements in the plant.

[abrir/zing flu! gasp-If it is desired to eu rich the gas I blow into the producer above the fuel or into an auxiliary heater. a hydrocarbon cil through any of the inlets of the apparatus, us ,f the cleaned producer gas forced b v thc gas compressor G, and usually Y blow the enricher in counter-current to the outgoing flow of the gas. This process of atomizeution b v blowing is dilferent from atoniization by spraying, the blowinginaking a more inist like spray or vapor. The gas carryingr this vap'or is then subjected to 110 heat to transform the vapor into a xed gas, in any of the methods suggested in this application.

Subject matter is herein disclosed that is not here claimed but which is claimed or will be claimed elsewhere.

'hat I claim as new is:

1. ln a gas generator. the combination of (l) a fuel container, (2l a sectional base for supporting the fuel container` (3) a 120 sub-base for supporting the sectional base, said sub-base comprising a water seal and means for the removal of ashes through the water seal, and (4) a removable fuel .table or grate within the sectional base, said fuel table or grate being non-integral with the sectional base but resting on the sub-base, said sectional base being composed in its entire elevational periphery of removable sections arranged for the assembling or dis- '30 assembling' of the sections by movable bolts. one or more of said sections being of sutileient .sis/.e io allor.' for ille inlrmlnction or removal ol said fuel laide or grate williont rlisnieinbernient of Said fuel table or grate.

In a gas generator. the Combination of (l) a i'nel eoniaiznfr, (z2) a square babe. supportingr the fuel container. and (S) a fuel table or grate in the inve non-integral with the liaae but reeling on the bottoni of the base` Said bane laiving detachable Sides of tixe 'full width and height of llxe interior of the base. said sides being atlaeliaiile and deljznflis, ille will: earn other. and witlr other pars of the has@ liv removable bolir'i.

il. in a gras gexwraior. time ronibinntion of (li :i cylindrical fuel eontaiinr. said eoni iainer having ar the lower edge of its, shell l grate or fuel table from said base, a .i ilang'iringv extexnling;- (.uivfvrilly from the renter of *die container. Q) a square liase snpporling lne fuel container, said base eonzprising a square top pinke lr Ying a cenlrai lin-l opening. said opening' being equal in diameter and nnifnrniiy in alioeinent willi -llie inner swim-e of die iieli ol the fuel containing f viinderv1 lnvs project-gd toaard (lie Venter of tlie :goin-.iing-r from the lop plate into .said opening, a looe dead ring resting; on the in`l laid dead ring Supporting a tire laiel lining for the *ln-ei contnini-r. four aldea, each side lowing east integral (lien-with a horizontal top flange, a horizontal holten; flange, and -lb'J corner flanges, uuid' top and corner fla ige: being;

arranged lo aafeniflf by baiting with each, niize anni Wiili ille op plate ltform Said a grate in said bane, raid lwafe man)rising` openings in 'die Sider; of lne imm: for the admission of "ir or oln. ganen to mici have. and for clean. lied resting mi .said grate. the ex l of the square top late being entirely or side of-'i the external surfaceof the cylindrical fuel container. A

4. In a gas generator, the combination of (l) a cylindrical fuel container, a .v'quare seclienal base Supporting the fuel i .wpnn'e iii-we, and (o) r cont-amer, the Side sections of said hase lieing,r placed peripherally outside a line perpendicnlarly outside. of the outer periphery of the fuel container for giving room for the liorizontai eviennion of a grate surface supporting the fuel in said container, (3) a sub-base supporting the square lane, sani nnb-bane comprising surfaces for precipitating; asin-a to a ventral part of the smbbase. a shim-ling mrt'aee dipping from with ont said base lo raid base and lo said cent 'al part, and a dip plaie elim-ling a water seal for said onli-hase through ivliirlx .seal aalies are removeiL and (4) n grate resting on said :soli-hase.

ln a gas generator. tlm r-ombinalion of i (l) a fuel eoulaiiwr. (i) a hase supporiing i internal diameter of the eonlainer. and (3) the fuel eonlainer, (il) a soli-linge supporti i i. r r i i i v ing the base.,A (4) a grate or fuel table`and a frame for tir; grate or fuel tzr-ble 1n said base but non-integral with said base, Said comprising means for holding said frate.

G. In a gas generator, the combination o- (l) a fue! evlinder, (Q) a sectional square oase sizpporting tlie fuel cylinder, said base comprising a movable section sntiiciently la: to provide for the removal f a framed grate. or fuel table frame in said base but non-integral with said base, and (4) a g ate or tuel taille in -ud frame.

in a gaf generator, the combmatlon 0f (l) a. base. l2) a uel container resting on i, 92 c :sani .,isise, (o) a grate Asupporting the inel m ald container, (el.) ineaoa for introducing an' and heat decreasing agents under the wrate, (5) means for introducing heat de,-

tlie fuel in iie container, (6) means for .econipoing vapors in the gas generated, and :nenas for f.-onlrolling; the pressure. of the. gas and vapors in the gas, under the grate in the {ne} container, angl in tine means for decomposing vapors.

In a gasgeneralor, the combination with the generator proper, of 1) a Square eftional babe .suiiporting the generator propeig ('2) an ash sifting and clinker grinding grate in the have, and means 'for actuating tnegra'e, said means cnnpris cng ineelianiam for actuating the. grate from witmmt the baSe and for preventing the escape of air or gas under presaui'e in Said hase from .said liasse on the line of or in amneetion with the means for actuating the grate.

f). In a gas generator, lh@ combination with a fuel eontainer. of a square base supporting the eontainer and an asl; sifting and linker grinding grate in the base, said grate eoinpriaing rocker liars having vlinker,

cutting edges, roeker liar arms and inans for aetnaing the rocker bar arinslfroxn without die hase. l#aid means beingV held pernianenllj.' 'n one linrixontal position h v two points ofsappia-t. said. bars being given n'nrtion frein uniside the base. and means for preventing eseape of air and other gas from lie base along the line of the ar'lnating means.

l0. ln a gas generaol-.llm efanlwination of. (l) n Square foin' sided sei-tional base, ("1) a vlindrival fuel eontainery renting' on [hn haar. having a lou-vr opening of the full creasing agents above the grate and. alpiove sides 0f the base being-perpendicular to vertical llnes laterally outside of said grate.

JOSEPH MOSES WARD KITCHEN.

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