US1837301A - Coking retort oven - Google Patents

Description

'7 Sheets-Sheet l J. VAN ACKEREN coKING RETORT ovEN Filed Dec. 28, 1926 lll Dec. 22, 1931.

Dec. 22, 1931. .1. VANACKEREN 1,837,301

COKING RETORT OVEN Filed Dec. 28. 926 '7 Sheets-Sheet 2 J. VAN ACKEREN v 1,837,301

COKING RETORT OVEN Filed DeC- 28. 1926 '7 Sheets-Sheet 5 Dec. 22, 1931.

kw`- J 5% o Sw o Q 4 Nk o Rm h YR o o J. VAN ACKEREN COKING RETORT OVEN Filed Dec.` 2B, 1926 7 Sheets-Sheet 4 Dec. 22, 1931.

Dec. 22, 1931. .1. v-AN AcKEREN 1,837,301

COKING RETORTOVEN I FiledvDeG. 28. 1926 T Sheets-Sheet 5 WA K SID Dec. 22, 1931. J. VAN ACKEREN 1,837,301

COKING RETORT OVEN Filed Dec. 28, 1926 7 Sheets-Sheet 6 lNVi-INTOR /z/yy/m M;

22/ ATTORNEY Dec. 22, 1931. J, VAN ACKEREN 1,837,301

COKING RETORT OVEN Filed Dec. 28. 1926 7 Sheets-Sheet 7 SECT/awon 6- INVENTOR W 7a KW ATTORNEY Patented Dec. 22, 1931 Unirse; erst-.SES

irse.;reNr i .Josera via scream, er Pim-mwen, semestrales, esser@ 'rosea Keri-sas. COMPANY. or rlerseveea, Errenteria #retrasarse er Barren-fvwm @KING smeer ever This invention comprehends improvef ments of general utility in ,coking retortoven art; and also comprehends certain improvements especially applicable to coking retort ovens of the Well lrnown cross-,regenerative type exemplified in the patent to J. Becker, No. 1,374,546, dated April 12, 1921.

The invention has for its objects the provision ofa colring retort oven having, as an important characteristic, an extreme flexibility in operation and the readyadaptability of the oven for operation-.either With producer gasas a fuel, `oryvith coke-'oven gas burned in an atmosphere of ordinary preheated air, such as is utilized infordinary colzeovens, or with colte oven gas burned in an atmosphere containing both and a neutral gaseous diluent which isintroduced into the combustion fines separately from the air. conversion of ,the oven for operation a0- cording to any one of the modespecified, may

be effected Without making any material ad'- jutments, vother than varying the operation Cil of installed control parts, as will be hereinafter more fullyexplained. I

A further object of the invention is to provide control mechanism for periodically in continuous motion the mechanism thatV operates the levers that reverse the valves for the gas supply, air supply, and Waste gasV outlets, a great saving in energyis effected by reason ofthe fact that the amount of energy consumed in maintaining such mechanism in Vcontinuous motion .is less .than the initial energy consumed inv stopping iand restarting suoli mechanism when it is operated .intermittently. By the invention, tvvo such-continuously moving mechanisinsare used each having a dog for moving engagers, in,-

By the invention, a 'quick and ready divdual t0 each' O11101110 of regenerators and fines, ,that .actuelle said valvesf These Q01 tinuouslyinoving mechanisms are timedso thatanpI-oximately one hour is ,consumed before each dog passes a given point and, theller fore, each dog .atuates ,each engager .Once

n every hour. The dogs are located onleach of half hour, by an. intermittently operating mechanism. Y

` ,In addition to the generalfobjects recited above, the invention has for further ,objects such other improvementsror advantagesv in construction and operation as are found to obtain 1n the structure and devices hereinafter described or claimed. Y

In .the accompanying drawings, forming a 'part Aofthis speoification, and showing, for

pur-poses ,of exemplification a preferred form and manner in which the invention mayV be embodied and practiced, but Without limiting the claimed invention specifically to such illustrative. instance or instances: Y

Figure 1 isa fragmentary vertical transverse sectional .view ltliroi'igh a coke oven battery and illustrating the relative position of the "several parts thereof and the arrangementof the control devices and mains with respect theretolV i V is a side elevational vievyT on ,a larger scale of a portion of the coke'side of an oven the reversing mechanism for controlling'tlie 'Y ioo the reversing mechanisms on the coke side of the oven battery.

Fig. 5 is a diagrammatic horizontal sectional view taken through a coke oven battery, showing the reversing mechanism in plan view.

F ig. 6 is a View similar' to F ig. 4 but illustrating the continuously moving chain mechanism which actuates the reversing mechanism on the pusher side of the oven battery.

Fig. T is a composite vertical sectional elevation taken transversely of a coke oven battery in planes indicated by the lines D-D, E-E and F-F of F ig. 1.

F ig. 8 is a composite Vertical sectional elevational view talien transversely of a coke oven battery in planes indicated by the lines B B and G-C of F ig. 2.

The same characters of reference indicate the same parts throughout the several views.

In the embodiment of the invention illustrated in the drawings, the invention is incorporated in a combination colre oven battery, i. e., a battery having provision for being operated either With producer gas as a fuel or with coke oven gas burned in an atmosphere of ordinary preheated air, such as is utilized in ordinary coke ovens, or with coke oven gas burned in an atmosphere containing both air and a neutral gaseous diluent which is introduced into the flame flues separately from the air. A combination colte oven battery having these features is shown and described in patent to J. Becker, No. 1,574,545, dated April 12, 1921.

For convenience, the present description will be contined to the present illustrated embodiment of the invention in such combination oven battery; the novel features and improvements made by the invention are susceptible of other applications, such, for example, as for ordinary so-called coke ovens employing coke oven gas as a fuel, or for ordinary so-called gas ovens employing producer gas as a fuel; hence, the scope of the invention is not confined to the specific use and speciiic embodiment herein described as an illustrative example.

Referring to the drawings, there are illustrated views of a coke oven battery or plant of the by-product type, having features above specified; said oven battery embodies in its construction a plurality of crosswise elongated heating walls 11 and a plurality of inintermediate crosswise elongated colring chambers 12. The heating walls 11 form the side walls of the respective colring chambers 12, as shown more particularly in F ig. 1, and, in the present instance, are directly supported by the heavy supporting or pillar walls 13 and 22, Figs. 1, 5 and 7, which extend crosswise of the battery. These pillar walls, together with other walls, hereinafter Ydescribed, collectively form the main support for the entire super-structure of the oven battery and are themselves supported upon a flat mat or platform which constitutes the sub-foundation on which the entire battery rests.

The coal to be coked is charged into the several coliing chambers or ovens through charging holes lll located in the top 15 of the oven batt-ery and positioned directly above the oven or chambers 12, as shown in Fig. 1. lhese charging holes la are equipped with the usual removable covers, which are rcmoved during the charging of the individual ovens or colring chambers and which are placed in position to close the tops of such coking chambers during the colring or distilling operation. The of distillation pass from' the tops of the several colring chambers 12 through gas outlets 16 (Fig. 1) and thence through ascension pipes (not shown) into the usual gas collecting main which carries the distillation products to the by-product recovery apparatus.

Heat for colring the charges of coal in the several ovens or chambers 12 is derived from the heating walls 11, which, as above mentioned, extend crosswise of the battery at the sides of the coking chambers. Each heating wall 11 is constituted of a plurality of the usual dame or combustion flues 17 and are operatively disposed in a single group, that is to say all of the iiucs of each heating wall operate concurrently as uptlow or downflow iues, as will be hereinafter more fully explained. lVhen the flame fines on one side of a colring chamber are burning, that is to say, operating for upflow, the flame flues on the opposite side of the same coking chamber are operating for downflow to permit exhaust of the waste gases. Consequently flame heating is maintained continuously from end to end on one side of a charge of colring coal in each colring chamber, the name heat being applied to the full length of one side of such charge during an entire period, and, then, after reversal, being applied to the full length of the opposite side of the charge, until a subsequent reversal is effected.

The crosswise regenerators 18 of the retort oven or battery are located in planes beneath the planes of the aforesaid heating walls 1l and coking chambers 12, and, in the present instance, extend in parallelism between the pillar walls 13, and the other heavy supporting walls 22. hereinafter described. Located in the middle lengthwise vertical plane of the coke oven battery, is a vertical partition 19, as shown in Fig. 1, which partition extends all the way up from the mat of the battery to the bottom of the overlying colring chamber and from one to the other of the pillar walls 13, and the other walls 22 which are between the pillar Walls. rlhe regenerators, which are respectively located on opposite sides of the battery, extend inwardly to f (Il said partition 19 and are separated thereby.

This arrangement permits control from opposite sides of the battery of the flow through Y distribution.

Each regenerator lS'is a chamber containing open briclr work, commonly called check-` er work, and indicated at 20, withY afdistributing sole channell2lunderneath such Vcheclrer worl, the channels forming the soles of :eifach chambers and opening np into the chech` er work.` Y i heavy vertical gas-'tight sup porting wall 22 extendsdirectly beneath each of the colring' chambers -in parallelism between each two adjacentpillar walls 13 (Fig 5) and such supporting walls 22 provide twoV regenerators G and H located respectively on the opposite sides of such-walls 22 and ben tween adjacentV pillar walls 13, The several walls 22 also have the functionY with the pilv` -theweieht of the battery super-structure. 1

This supporting wall construction provides two series of cross-wise-extending parallel gas-tight load-carrying walls located below the colring chambers and intermediate heatwalls, the pillar walls 13 ofone series being directly beneath the heating walls and the supporting walls '22 of the other series being directlybeneath the coking chambers. The walls 22 which are beneaththe coking chambers are constructed and function not as mere partitions commonly employed, but as true load-carrying gas-tight walls, permitt; g rea-tively different pressures to be maintained. in the checkerwork chambers on the op osite` sides of such walls, orV the flowof dii'lerent media in the checkerwork chambers separated by these walls, without leakage from onecheclrerworl chamber into ano-ther and without danger of mixing gases in the checlrerworr chambers which must be 'kept separate in this region of the battery. i l

`Theregenerators G and AHare heated,`in alternation, by the hotcombustion products that draw oil? from the flame or combustion fines hereinbeforementioned and then impart such heat to the medium that they feed into these llame fines; in the present instance, the

llow through the regenerators, G, H, between each two adjacent pillar walls V13 is maintained `concu 1rently in opposite directions, for example, whenthe flow is passing up through a refrenerator G on one side of supporting wall 22, down-flow is being maintainedV concurrently through 4tlie other regenerator H on the "other side of that supporting wall22. f

funnl is provided with a series of ducts 23, each Vdect of each series leading respectively to one tween-saidregenerators Withthis construcf the'coope'rating regeneratorsG and tion, each flame flue communicates by a plurality of ducts 23 with adjacent separate regenerators G and H and the flow through the regenerators which are respectively located on opposite Vsides of a pillar wall 13is mainlained concurrently in the same direction,

Vthat is to-say,yboth of said regenerators are either operating 'for infiowor for outflow.

ln the present Vembodiment of the invention, the entire series of llame nues of each heatiiigw-all ll is either burning or operating for down-flow to convey waste gas prodrrcts to theregenerators beneath and conse- `quently the regen-erators aligned on opposite sides of the central longitudinalpartition 19 operate Iconcurrently fort-low in the saine d1- reotion and in the same manner. The reversal in flow through the flame flu'es on opposite sides of a colring chamber, and their commu- Ynicably connected regenerators may thus be said'to takeplace longitudinally of the oven battery, instead of transversely thereof. The reversal of the oven is elfected at the end of operating period which is determined by practice, andiby means of the novel reversing mechanism presently to be described. The flnnction of s'uchreversal is as follows :v The "regenerators that Yprior to the reversal oper- Vfated as inflow regenerators become outflow regenerators, and the youtflow operating regenerators become inflow operating regener ators; the Lip-burningseries of flue switches function with the down-burning series 0f lines 1of the -next'lsadjaeent heating wall, and the supply of gas is turned off from the previously iup-burningv flues and turnedon into the mains of 'the' lpreviously downeburning flues, as is fully'shownand described in the patent to J. BeckenNo."1,374,546, previously mentioned. I Y l Each llame 4flue of each heating wall has at its top a porter opening 24 for vdraft and the passage of combustion products or waste gas from the flame within the flue. rlhese ports open up into lhorizontal transversely extending bus fiues 25 formed in the heating walls and connecting all ofthe vertical lues that communicate therewithv through said ports. Each heating wall is provided with a plurality of, in the present instance, two

of such horizontal rines which are positioned the same ovenby means of the said passagef ways. These passagewa-ys or channels25 preferably open upinto substantially the middle portions of their respective connected tlues, as shown in F ig. l, and extend in a direction longitudinally of the oven battery. rlhus the entire flow from a heating Wall, Within the llues ot which combustion is being maintained, passes through said passagevvays and downwardly through all of the ilues ot the next adjacent heating Wall and each reversal operation is accompanied by a reversal in the direction in the flow of all of the lues of each heating Wall.

ll`he draft through the ports may be regulated by means of the usual movable dampers or sliding bricks, positioned in the ordinary Way in the bottoms of the horizontal llues 25 and adapted to be reached by access ilues 28 which extend from the top of the horizontal iues in each heating Wall to the top l5 of the battery, there being an access tlue positioned over each flame or combustion tine ot' each. heating Wall.

Extending crosswise of the battery in each pillar Wall 13 and located in end to end relation with respect to each other beneath the heating ivall 'li therea-bove are tivo gas supply channels 2G. These channels are for the purpose of supplying colte oven gas to the several ilaine liucs on each side of the central 30 l e L, and to accomplish this end, the channel on the near or pusher side of the battery communicates with the individual tlues on the saine side of the said line L by means ot ducts that lead from such channel individually into the bottoms of individual tlues; and the channel which supplies the several tiues that arerlocated on Vthe far or coke side of the battery communicates therewith by means of similarly connecting ducts 3l. Hthin the several ducts are disposed the usual nozzles 8 which direct the tlanie vertically Within the headng or flame tlues.

The iiereiiibetore described iid described iii detail i c u, Nos. 1,3?546 and l, l

nt invention relates to the rey .iisin for the battery, the parts f n are not needed for an understanding oi" invention having been omitted ironi 50 :Sie draiiings.

previously stated. the solo channels 2l extend in opposite directions beneath the checker vorl; .e respective regeneratois on oppor-.ite sides of the vertical partition 'i9 :"Cd each et these channels is provided with a flow boi: iiovv boxes 83 are arranged in paiisnlone; each side of the oven battery and communicate with waste gastunnels Q1-L1 thi-orali vertical ducts 353.

The dow l1 o which communicate with or and lil are indicated at (j pectiv ly in Fig. 2 oi the drawings. arrangement the iloiv boxes gf and 7L or each pair communicate through their respective regenerator G and 7l With a single heating Wall. Gas mains 36 are mounted 1 P L n upon bracket members 3f and extend longitudinally along opposite sides of the battery. These mains are cominuiiicably connected to sources ot supply of both coke oven gas and a special generator gas, such as producer das, and when the oven is being operated tii either ot these gases as a fuel, the mains cut oil from the supply of the other gas. 'lliat is to say, the mains 36 are employed to separately supply either coke oven gas or producer gas to the flame fines, ac-

i .V 'i i 4i 'l 1.' coidiiig to die oesired operation of the battery.

plurality ot vertically extending pipes are arranged along each side of the batniiet-ted, adjacent to their lov-.fer ends,

.vitsi the i'low bones fi of each of the pairs of nov: boxes by means ot pipes d0 and valve n :i 'lhese pipes 38 are also conand Haine nozzles of .c :ply cham els 26, which are located ii ,r r portion or the several flame liues,

upwardly and inwardly inclined p rtically disposed pipes 43, and li .ly positioned pipes li-t. A valve 45 p with an operating lever 46 is loci r eo ch of the vertical pipes by means of he supply of gas to the nozzles in tl; mains may be interrupted when tl operating with producer gas as as will be hereinf. er described.

' 'e members i-, provided with operat- 'ers or arms l-S, are located in the Verl L 3S and are adapted to be periactuated in alternation to establish l "rh communication between the the regenerators and laine die oven.. The flow boites g and 71. ot the pairs oft i'egenerators are each ly provided with internally disl iaust valves or dampers 50 and l, as int-.icaied by dotted linesy in Fig. 2. The faire members 50 and 5l oli each pair are provided Avvith operating levers 52 and which are connected together their upper ends by means ot links 54 so that the valves 50 :in l 5l oit each ot' the pairs of A)flow boxes will move in unison to simultaneously establisli or interrupt communication between their respective vsole channels 2l andthe Waste gas tunnels 84C.

The iioiv boxes g and of each pair are also respectively7 provided With air inlet valve members covers 55 and which may be periodical y opened to admit air to the fionv bones under certain conditions ot operation, as will be presently described. rlhe valve members 55 and 56 are respectively pivotally connected to the arms 57 and 58 ot bell crank levers 59 and 60 which are mounted upon the upper portions of the HOW boxes g L -1, ina iin-es oi oi cacii resitecl and ft as at 61. The other arms 62 and 63 of the bell crank levers159 and 60 emend upwardly and may be connected similarly to the flow box valve levers 52 and 53 in pairs by means of links-64, which are shown in dot ted lines iii-Fig. 2.` However, in the particular .i ation to 56 of the flow boxes .7a are notoperatedbut l are maintained in closed positions throughout the operation of the oven battery and are employed only in connection with a fuel gasl which requires a larger percentage of air for satisfactory combustion. The covers 55 of the flowY boxes g are actuated under all conditions of operation, and are moved simultaneously with the exhaust valves or dainpers 56 and 51 of the adjacent pairs of-flowl boxes by'meansof links 65 which cross-connect the arms 62 of the bell crank `levers 59, which lactuatethe air inlet cover 55'of the flow boxes g of one ofthe pair vof flow boxes, with the arm-s 52 and 53 of the flow box-es g and t of the adjacent pair.

` l'twill-be observed from an inspection of 2 of the drawingsl that several valve elements of the iiowln'ixesv g and 7an of one of the pairs ofl flow boxes Aare mounted to operatev in opposite directions from those of the ad- `jacent pair and are so interconnected by inea-ns of the above described link and lever mechanism that when thevalves and 51 of Y one of vthe pairs of flow boxes g and 7L are l open to permit the waste products of com- Mfbustion'to escape to thewaste gasqtunnels 3.4.4 the air inl-et valve of the flow box g of the adjacentpair is alsoin an 'open Iposi-A tion; and conversely, when the valve 55`1of the flow box o is in a closed positionA the valves 56and 51 of the adjacent pair ofv flow boxes r/ and are also in closed positions. That is to say, the air inlet valve 55 of one pairof fir wboxes operates in unison and simultaneouslyrwith the exhaust valves 50 and 51 of the adjacent pair.

on each side of the battery and the mechanism oneach side is actuated in timed relation with respect to each other by means of the following instrumentalities. 'Y

A frame 66 extends longitudinally along both sides of the oven battery and this frame carries, `at spaced -intervalsfa plurality of transverseljjv7 extending shafts 67l andV 68 which A'are rotatably mounted inelongated bearing blocks 69. A gea-r'wheel 70is keyed .to the inner extremity'of each of the shafts be described Y the covers The valve `mechanism heretofore described is substantially thesame arm 7 3 and extends downwardly and is vpivotally connected at its .other end to the arm 62 of one of the bell crank levers 59 which actuates one of the air inlet valves L55 of the A gearwheel-75 is keyed at the outer end of each of` the shafts 67 and 68and meshes with a gear wheel 76 whichV is fixed to the outer end of a stub shaft 77. n The shaft 77 is rotatably mounted in one of the bearing blocks 69 carried by the frame 66 and in'axial alignment with the stub shaft 72. A-`4V crank arm 7 8 is fixed to the outer end of each of the shafts 77 and is operatively connected tothe arm 48 of the gas valve 47 by means of a'link 79. rlhe gear wheels 70 and 7l and also the gear wheels 7 5 and 76 are of a two to one ratio and consequently one quarter revolution of the gear wheels 70 and 7 5.will

cause acne-half revolution of their co-actingz gears 71 and 76. The result is that when the gear wheels70 and 75 are rotatedone quarter Vof a revolution, by means of mechanism presently to be described, the 'crank arms 73 and 78 will be moved through arcs of 18()o tojsimultaneouslyeither open or close the air inlet valve55 and gas valve 47 for one pair of -regenerators and fluesand also the' wastegas valves 50 and -51 of theV corresponding' adjacent pairl of regenerators and lines. Y

Each of the shafts 67 is provided with a pair of star wheels or engagers auand ZJ and the shafts 68 are also each provided with similar engagers cli and d. Each of the engagers comprises a hub portion and a.

plurality of radia-llyextendin'g arms81 hav-` ing bifuroated endport-ions 82.'fpp'lhe"inner loosely mounted upon the shafts67 and 68 Vfor free-rotation thereon but the "outer'engagers b and d are respectively keyedto the shafts 67 and 68 so that any force tending to rotate the fixed engagers will be trans- Y Vmitted to their supporting shafts. The outer portion of the hub 8O of the loose engager a is provided with aV sprocket wheel 83which is connected with a sprocket wheel 84 prolvided on the inner portion of the hub 80 of the fixed engager d, that is keyed to the shaft-.68,l by means of ai sprocket chain 85. Y A

vmost engagersfa and o of each pair are sprocketV wheel 86 is also keyed to the shaft 67 and is connected with al sprocket wheel 87 which is provided on the hub 8O of the loose engager c bylneans of a sprocket 'chain 88.

By means of this particular construction,

if the enga-ger a is actuated it will rotate freely upon the shaft 67 but will cause the rotation of the fixed engager CZ and the# shaft68, also `if the engager is actuated it will `cause. the rotation of the shaft 67 vsprocket wheel 86 and engager c, through the medium of the sprocket chain 88, but as the engager cwis mounted loosely upon the shaftV 68 'no motion will be transmitted thereto. Gn the other hand if the loose engager c is rotated freely upon the shaft 68 the shaft 67 will be rotated through the medium of the sprocket wheel 87 and the fixed sprocket wheel 86 and the sprocket chain 88 and also cause the rotation of the engager which is keyed to this shaft. 1f the fixed engager CZ is rotated its shaft 68 will be also rotated together with the engager a through the medium of the sprocket chain 85, but as the engager a is mounted for free rotation upon the shaft 67 no motion will be imparted thereto.

The several engagers a, b, o, and d are actuated periodically and in succession to reverse the operation of the oven battery by means of inner and outer endless engager chains 89 and 90 respectively which extend longitudinally along each side of the oven battery and each of which carries one or more dogs 91 and 92 respectively. rThe dog 91 carried by the chain 89 is staggered with respect to the dog 92 which is provided on the chain 90 so that the dog 91 will be one-half hour behind the dog 92 and not move the engagers that actuate the valve levers of each oven until one-half hour after the dog 92 moved its respective engagers, and as a consequence the enga-gers a, c, b and d are alternately actuated.

These chains 89 and 90 pass around a plurality of driving sprocket wheels 98 and 94 which are keyed to a common shaft 95 located at one end of the battery (Fig. ifi-.t the other end of the battery the chains 89 and 90 pass over idler wheels 96 and 97 which are suitably mounted in avhorizontally movable frame structure or carriage 98. A cable 99 passes over a sheave or pulley 100 and is secured at one end to the frame 98 and is provided at its other end with a weight 101 which may be adjusted to maintain the proper tension upon the cables 89 and 90. The upper flights of the engager chains 89 l and 90 ride in the bifurcated portions 82 of the engager arms 81 which are therefore constantly in the path of travel of the dogs 91 and 92 but the lower flights of these chains are supported at intervals by means of idler pulleys 102.

A shaft 103 extends transversely across one end of the battery and is provided at each end with a sprocket wheel 104. These sprocket Wheels are connected by means of sprocket chains 106 to sprocket Wheels 105 which are fixed to the inner ends of the shafts.

@ne of the shafts 95 is provided with a wheel 107 which is driven by an electric motor 108 through the medium of suitable reduction gear mechanism 109. It will be apparent from the foregoing that the hereinbefore described reversing mechanisms located on each side of the oven battery are operated in unison and in timed relation with each other, and the speed of said chains may be regulated by said reduction gearing so that each of the dogs passes a given point in one hour, or more if desired, depending on the number of dogs on a chain.

The operation of the reversing mechanism when producer gas is utilized as a fuel is as follows:

Assuming that the several valves on both sides of the battery are in the positions shown in Figs. 2 and 3 and that the engager chains 89 and 90 are advancing in the direction indicated by the arrow in these figures, the dog 92 has just' engaged one of the arms of the outer fixed engager wheel b, for the four flow boxes from the left hand side of Fig. 2, which are illustrated in the intermediate reversal position, that is, the posi tions they assume just after a shutoff and before the turn on, and caused the shaft G7 to rotate. This movement of the engager has caused the arm 78 to move one-half of a revolution, and has been previously described, and actuated the valve 47 in the vertical pipe 38 leading to the second flow box from the left hand side, to cut off the supply of producer gas from the fiame fines which are supplied through this valve. The arm 73 will also be rotated at the same time one-half of a'revolution to move the lever 74 and thereby simultaneously close the air inlet valve 55 of the fiow box g of the first pair and to close the exhaust valves or dampers and 51 of the fiow boxes g and 7L of the next adjacent second pair, and the rotation of the shaft 67 will rotate the gear wheel 86 and chain 88 which will rotate the gear wheel 87, but the gear Wheel 87 will not cause rotation of the shaft 68 as it is loose thereon and not fixed. The dog 92 will then pass to and engage the arms of the engager d which is fixed to the shaft 68 and cause the arm 78 of d to move one-half of a revolution, as has been previously described, and actuate the valve 47 through the levers 79 and 48 to turn on the supply of producer gasto the regenerators which are supplied through this valve 47 in the vertical pipe 38 leading to the flow box L of thc second pair from the left, and the arm 7 3 of d will also be rotated one-half of a revolution and its leverl 74 to simultaneously open the air inlet valve of the flow box g of the second pair-and the exhaust valves or dampers 50 and 51 of the flow boxes g and 7L of the first pair. This rotation of the shaft 68 will cause rotation of the engager a but the engager a will not cause rotation of the shaft 67 as it is loose thereon and not fixed thereto. By the reversal movement just described, the functions of the first pair of regenerators g, t, which were operating for inflow will have been reversed and will operate as outflow regenerators when the engager d is moved and the second pair of regenerators'g and I/which were operating, for inflow or,

for outflow vwill then operate flame burning; 1 y. 1 i Y By reason of the fact that the dogs 9i and 92 are staggered with respect to each vother and are disposed at one half an hours dis- V tance 'apart longitudinally, the dog 9i. will next engage the loose engager at one halfV iour after said dog 92 engaged the `engager l and causeit to rotate one quarterl of a revolution. This partial rotation of the en rotation thereof and the arms 73 and79 which are associated therewith to move one half of a revolution` and closeA the exhaust'.` valves 50aud 51 of the first'fpair of flow bones g and 7L and the air inlet valve 55 of the flow box g of thesecond pair and to also actuate the valve 47 andstop the vsupply from the gas pipe 38 of the second pair. of flow boxes. The. dog 91 next passes on and en gages the loose engager c. which rotates the shaft 67 by meansof gear wheels 87 and 86 and chain 88 and its engagement Ytherewith will cause the gas to How into the flow box of the first pair and the lid 55 of theflow` box f] of thev first pair to open and cause the valves 50 and 51 of thesecond pair of flow boxes to vopen and therebyeif'ect a 'second reversal of flow so that the irstpair of regenerators are now operating for inflow Aand the second pair for outflow.

Durinothe comparatively short period of time between the shutting ofl' of the gas and air in one pair of flow boxes and regenerators and the turning on ofthe gas and air in the other pair of flow. boxes and regenerators,

which period is only the time required for the 9i to pass from the loose engager' a to the loose engagerfc or, orthe dog 92 to pass from the fixed engager"b to .the fined engager al, no gas or airwill flow into the flues and the time between the shut-off and the turn on is suiiicient to allow the gas and air that are still in these fiues-.to complete their combustion beforethe airian'd gas is started flowing in the reverse direction.

. fter the dog 92 passes theengager al 'for the four flow boxes at the left in Fig. 2, it then actuates the engagero for the nent four flow bores to the right in Fig.g2 (these four flow bores together with their valves and levers, etc., illustrate the position of' the d' parts before their reversal) which shuts o the gas and the air on'the first two iiow bores and closes the valves and 5l of the nent Y two flow boites to the right. rEhe dog 92 be- This engager, beingv .keyed to the shaft 68 will cause the partial g desirable.

' fines arms 4:6 which operate the valves 45 gas and the air for the second pair and opens thevalves 50-and 5l of the first pair, the dog passing on and operatin g in the same manner each engager b and .cZ throughout the bat-V tery in succession- The dog` 91, being onehalf hour behind the dog92,` actuates the engagers a and o for each four flow boxes, oneA half hour after the dog 92, and it continues onin the same manner, as above described, operating each'engager a and c throughout the battery in succession.

YIt will be understood that more than one dog may be provided along the engager chains S9" and 90to' actuate eachv of the engagers but-they should be so spaced from each other andthe speed of the continuously mov-A ing chain regulated so that the fiow'for each oven is reversed periodically'every one-half hour or such other period of time as may be Each dog 9i engages the engagers a and c of each oven in succession and each dog 92 engages the engagers b and d of each oven in succession longitudinally of Vthe battery.

By vreason of this timing of the several actuating instrumentalities, producer gas-.is supplied to theV flow boxes h of Valternate pairs and vtheir communicating regenerators and llame fluesand at the same time air is admitvted to the regenerators and communicating rip-burning flues to support combustion through the cooperating iow bores g of such pairs.

V rlfhe pairs of flow boxes g and 7i which are located between those pairs supplying gas and air to the up-burning flame flues are operating to deliver the waster gas or products of combustion to the waste gas vtunnels 34. The operation of the' several flame flues consequently progresses longitudinally through# Vout the'length of the battery, the rip-burning flues alternately becoming down-burning flues and those operating las down-burning alternately becoming rip-burning fiues.

.lf it is desiredto employ coke oven gas as 'fuel the `supply of .producer gas is cut off from the gas mains 36 and a supply of coke oven gas is Vturned on into these mains.

The arms 62 and 63 of the bell crank levers 59 and GO'WhichV operate the air inlet valves and of the .pairs of flow boxes g and.

L are connected by means of the linlrs (shown bythe dotted lines in Fig.v 2) and the arms 48 which operate the gas valves i7 in the vertical pipes 38 are .also connected to the in the pipes e3. by means of links 110. The valves 4l, which are locatedin the pipes 4:0, are

turned off to prevent the coke oven gas from flowing into the flow boxes 7a which are only used for gas when the oven is operating with producer gas as a fuel.

The operation Vof the reversing mechanism and valve elements of the oven battery with these slight changes, issubstantially the saine as that hereinbefore described in connection with the operation of the oven with producer gas, the only difference being that first; instead of s fpplying producer gas through the flowv boxes It that communicate with the uli-burnin@ Haes coke oven Oas is su L C l ID l'l "'f fl th1 hun Ylelp icc to incse ues ioug no noaz Ls o cated in the pipes Q6 in the lower portions thereof; and7 second; instead of supplying producer gas through the flow boxes WL", these fioiv boxes operate in conjunction with the flow boxes g of the up-burning flues to supply an increased amount of air through both of the cooperating regenerators G and H suioient to voroduce the 3ro 3er combustion of the coke oven C*as 1n the u rburmno b t* flame lines.

By rearrangement of levers and connections a different sequence of operation of the regenerator and gas valves can be effected, as,

WWAPvnvArWi/var uuvrawivraivivra ann so forth (in Which formulae, lV is for Waste heat and A for air and P for producer or other lean gas) The invention as hereinabove set forth is embodied in a particular form of construction but may be variously embodied Within the scope of the claims hereinafter made.

claim:

l. In a coking retort oven battery in combination: a plurality of retort chambers alternef-ling with heating Walls contiguous to such colring chan'ibers and respectively constituted of combustion dues adapted to be subjected to periodical beatings of different intensities; regenerators side by side in a ronY and disposed in in-flow and out-flow groups and communicably connected with lines, the rcgenerators for each heating Wall being disposed in pairs; flow boxes communicably connected With each regenerator of a pair and with a Waste gas outlet, one of said flow boxes and regenerators of a pair being` for air and the other of said pair for when operating for in-flow and both being for ex haust of Waste gas when operating` for outflow, an air valve for each ioiv box; a Waste las valve for each flow box, means to convey fuel optionally communicable with one of pair of said ioiv boxes or directly with the flues of each heating Wall; a valve in said means to convey fuel gas; a pair of rotatable shafts for each two adjacent pairs of regenerators, each shaft having an engager looselj, mounted thereon and each shaft having an engager fixed thereon on the loose engager of the first shaft being operatively connected With the second shaft and the loose engager of the second shaft being operatively connected with the first shaft; a plurality of progressively movable means adapted to actuate said engagers in timed relation, one of said progressively movable means engaging the loosely mounted engagers and the other one engaging the fixedly mounted cngagers, said first shaft being ojjieratively connected With the valve in the means to convey fuel gas and With the air valves of one pair of flow boxes for the pair of regenerators for one heating Wall and with the waste gas valves of the flow boxes of a next adjacent pair of regenerators for another heating Wall, the second shaft being operatively connected with the valve in the means to convey fuel gas and with the air valves for the lioiv boxes of said next adjacent pair of regenerators for said another heating Wall and With the Waste gas valves of the ow boxes of the pair of regen erators for said one heating Wall.

2. In a colring retort oven, in combination a plurality of coking chambers alternatinfy with heating Walls contiguous to such colti. chambers and respectively constituted of a plurality of combustion flues; the heating lues in the heating Walls on two opposite sides ofV each of a plurality of colring chambers being communicably connected with each other; a plurality of pairs of regenerators side by side in a row; a pair of regenerators communicably connected With the fines of each heating Wall, one regcnerator of ea pair being adapted to operate for air and the other for gas When operating for in-iovv and both of each pair of regenerators being adapted to exhausting Waste gases when operating for out-flow; a flow box for each regenerator, each of said fioiv boxes having an air valve and a Waste gas valve; means to convey fuel gas optionally communicable With one flow box of each pair or directly with the heating Walls with which said pairs communicate; a gas valve in said means to convey fuel gas; tivo rotatably mounted shafts individual to each colring chamber. that has heating flues on its two opposite sides cominunicably connected With each other for reversing the flow through said flues; one of said shafts operating` the gas valve and air valves for the flow boxes of the pair of regenerators for the heating Wall on one side of said colring chamber and the Waste valves of the flow boxes of the pair of regenerators for the heating Wall on the other side of said colring chamber, the other shaft operating the gas valve and air valve for the HOW boxes of the pair of regcnerators for the heatingl Wall on said other side and the Waste gas ternaliy by gas burning combustion lues eX- terior thereto and adapted to be subjected to periodic beatings of different intensities, in combination; a pair of regenerators communicating With combustion iiues of the battery; an air valve for each onev of said pair; a Waste gas valve tor each one of saidpair; a 'supply valve for each one of said pair; a pair of valve reversing devices; means operatively connecting each one of the reversing Idevices with the air `valve and'gas valve of one. et the regenerators and with Waste gas valve of the other regenerator; a first engager means operatively connectedv With the second reversing device to actuate said second reversing device of the pair; and a second enmeans for the irst of said reversing devices .and operatively connected with said iirst reversing devices ;two progressively movable mechanisms operable in timed relationship, one or said mechanisms being adapted for operating said reversing' mechanisms and the other being adapted for operating the first and second engager means. l

a. In a coling retort oven, battery, in combination: combustion chambers adapted t operate in alternation for inilou7 combustion and outLloW of combustion products regenerators communicably connected With said combustion chambers and disposed in pairs Yfor in-tlovv and out-flow; an air'valve for each regenerator; a gas valve for each regenerator; a Waste'gas valve for each regenerator; a pair of valve reversing devicesV for each pair of regenerators; means operatively connecting each reversing device With its respective air valve and gas valve "of one regenerator and with the Waste gas valve or the other regenerator ot the pair; a iirst engager means operatively connected to said second r .rsing device; a second engager means operatively connected to said Vlirst reversing device; two progressively movable mechanisms operable in timed relationship, one of said mechanisms being adapted for operating said n' reversing devices andthe other being adapted for operating the irst and second engager means; said progressively.movable mechanisms being adapted for operating their respective engager means and reversing devices periodically in succession.

Vregenerators being connected 5. InV a coking retortv oven battery, in combination: colring chambers; heating Walls contiguous to said colring chambers andrespectively constituted of combustion lues regenerators located at a lower level than the cc-lring chambers Vand the heating vvalls,`the Q ducts with the lines ot heating Walls; said regenerators and heating Walls being disposed in pairs for simultaneousVin-ilowand outflow; an air valve, aV gas valve and'avvaste valveindividual to each regenerator and heating Wall ora pair; a reversing device for each regenerator and heating Wall of a pair;

means connecting each reversing device With the air valve and gas valve of itsv regenerator and heating Wall or the pair and With the Waste gas valve of the other regenerator and heating vvlall of the pair and timed Ameans for effecting timed operationfof a succession of mechanisms` in succession adapted for actuatingsaid reversing devices successively so as to reverse the flow through each pair of regenerators and heating Walls in succession and timing means for effecting timed operation of said timed means.

6. In a colring retort oven battery, in combinat-ion: coking chambers; heating Walls contiguous to said coking ohambersand respectively constituted of combustion tlues regenerators located at al lovver level than the colring lchambers and the heating Walls; the regenerators beingconnected `by ducts With the flues ofsaid heating Walls; said regenerators and heating Walls being disposed in pairs for simultaneous iii-lion7 and out-flow; an air valve, a gas valve and a Wastegas valve individual to each regenerator and heating Wall of a pair; a. reversing device for each regenerator and heating Wall of a pair, means connecting each reversing device with the air valve` and gas valve of its regeneratorand heating Wall of thelpair and with the Waste gas valve of the otherregenerator and heating Wall of the pair; and means mounted for progressive movement in circuit past the reversing devices for operating said reversing devices to reverse the flow through each pair of regenerators and heating Walls of the pair.

'i'. In a coling retort oven battery, incombination: oolring chambers; heatingl yvalls contiguous to said coking chambers .andrespectively constituted of combustion flues; regenerators located at a lovver level than the cohing chambers and the heating Walls, the regenerators being connected by lducts with the lues of said heating Walls; said regenerators and heating Walls being disposed in .pairs for simultaneous in-flovv and outfiovv; an air valve, a gas valve and a 4Waste gas valve for each regenerator and heating vvall of a pair; a first and a second valve reversing device for each pair of regenerators and heating Walls; means connecting each one of the reversing devices with the air valve and gas valve of one of the regenerators and heating wallsV of the pair and with the waste gas valve of the other regenerator and heating wall of the pair; a i'irst engager means operatively connected with each second reversing device of a pair and a second engager means operatively connected with each first reversing device of a pair and timed means for effecting timed actuation of a series of mechanisms one after another adapted for actuating only the reversing devices one after the other and other timed means for effecting timed actuation of only the first and second engager means one after the other and timing means for effecting timed operation of said timed means.

8. In a coking retort oven battery, in combination coking chambers ;heating walls contiguous to said coling chambers and respectively constituted of combustion llues; regenerators located at a lower level than the coking chambers and the heating walls, the regenerators being connected by ducts with the flues of said heating walls; said regenerators and heating walls being disposed in pairs for simultaneous in-flow and out-flow; an air valve, a gas valve and a waste gas valve for each regenerator and heating wall of a pair; a lirst and a second valve reversing device for each pair of regenerators and heating walls; means connecting each one of the reversing devices with the air valve and gas valve of one of the regenerators andy heating walls of the pair and with the waste gas valve of the other regenerator and heating wall of the pair; a first engager means operatively connected with each second reversing device of a pair and a second engager means operatively connected with each first reversing de vice of' a pair and progressively movable means for actuating only the reversing devices one after the other and other progressively movabl-e means for actuating only the first and second engager means one after the other.

9. In a coking retort oven battery, in combination: a plurality of coking chambers; heating walls contiguous to such coking chambers and constituted of combustion flues; a plurality of flow duct means respectively communicably connecting a plurality of said combustion flues with each other for simultaneous inflow and outflow; a plurality of groups of regenerators, each group comprising regenerators arranged for simultaneous inflow and outflow and in communi cation with a plurality of said combustion flues that are in communication with each other for simultaneous inflow and outflow; means for admitting gas to said flues; means for admittingair to the regenerators; means for discharge of waste gas from the regenerators; liow reversing means for each of said groups of regenerators; power transmitting means for transmitting power for actuating mechanisms in succession arranged common to all of said flow reversing means and adapted to operate said flow reversing means in succession so as to periodicallyreversetlielov: through said plurality of groups of regenerators successively.

10. In a coking retort oven battery, in combination: a plurality of coking chambers; heating walls contiguous to such coking chambers and constituted of combustion iiues; a plurality of groups of regenerators communicably connected with said combustion fluesJ each group comprising regenerators for simultaneous inflow and outflow; means for admitting gas to said flues; means for admitting air to the regcnerators; means for discharge of' waste gas from the regenerators; flow reversing means for each of said groups of regenerators; power transmitting means for transmitting power for actuating mechanisms in succession arranged common to all of said flow reversing means and adapted to operate said flow reversing means in succession so as to periodically reverse the flow through said plurality of groups of regenerators successively.

1l. ln a coking retort oven battery, in com bination: a plurality of colring chambers; heating walls contiguous to such coking chambers and constituted of combustion llues; a plurality of flow duct means communicably connecting a plurality of said combustion llues with each other for simultaneous inflow and outflow; a plurality of groups of regenerators, each group comprising regenerators arranged for simultaneous inflow and outflow and in communication with a plurality of said combustion flues that are in communication with each other for simultaneous inflow and outflow; means for admitting gas to said liues; means for admitting air to the regenerators; means for discharge of waste gas from the regenerators; flow reversing means for each of said groups of regenerators; power transmitting means for transmitting power for actuating mechanisms :in succession arranged common to all of said flow reversing means and adapted to operate said flow reversing means individually and in succession so as to periodically reverse the flow through said plurality of groups of reg-enerators one at a time progressively.

12. in a coking retort oven battery, iu combination: a plurality of coking chambers; heating walls contiguous to such colring` chambers and constituted of combustion flues; a plurality of groups of regenerators ccmmunicably connected. with said combustion flues, each group comprising regenerators arranged for flow simultaneously in the same direction: means for admitting gas lo said fines; means for admitting air to the regenerators: means for discharge of waste gas from the regenerators; flow reversing means for each of said groups of regenerators; sequence controlling means for actuating mechanisms in succession arranged for progressive movement in circuit'past alloi' said flow reversing means and adapted to operate said flow reversing means individus-.lly and in succession so as to periodically reverse the flow through said plurality oi groups of regenerators one at a time progressively. i

13. In a battery ofl coking' retort ovens, in combination: a plurality ofI coling chambers; heating walls contiguous to such col(- ing chambers and constituted of combustion flues; a plurality of liow duct means communicably connecting Va plurality of said combustion ilues with eachother for simultaneous inflow and outflow;v a plurality of groups of regenerators, each group comprising regenerators arranged for simultaneous inflow andV outflow and in communication with a plurality of said combustion flues that are in coimnunication with each other for simultaneous inflowand outflow; `means 'for admitting gas to said ilues; means for admitting air to the regenerators; `means for discharge of waste gas from the regenerators;

' flow reversing means for each of said groups of regeneratcrs; sequence controlling means for actuating mechanisms in succession Vby progressive movement in circuit past mechanisms to be actuated thereby mounted for progressive movement in circuit past all of said -flow reversing means and adapted to operate said flow reversing means in successien so as to periodically-reverse the flow through the groups of regenerato-rs 'for said battery ot ovens successively.

lll. In a battery of coliing retort ovens, in combination: a plurality of coking chambers; heating walls contiguous to suchcoling chambers and constituted of combustion iues; a plurality of groups of regenerators communicably connected with said combustion lines, each group comprising regenerators arranged for simultaneous inflow and outiiow; means for admitting gas to said flues; means for admitting air to the regenerators; means for discharge of waste gas from the regenerators; flow reversing means for each of said groups of regenerators; sequence controlling means for actuating mechanisms in succession by progressive movement in circuit past mechanisms to be actuated thereby mounted for progressive mo-vement in circuit past all of said flo-w reversing means and adapted to operate said flow reversing means in succession so as to periodically reverse the flow through the groups of regenerators for said battery of. ovens successively.

l5. In a coking retort oven battery having retort chambers adapted to be respectively externally heated by gas burning combustion flues adapted to be subjected to periodic heatings of different intensities and having regenerators in communication with said flues and having reversing valves for reversing the flow of gas and air for Vcombustion in said tlues, in combination: a reversal mechanism comprising a pair of rotatable members each adapted for edecting an opening and a closing movement of certain .of said vreversing j valves when rotated; an engager fixed on each member to rotate the same for effecting i bers for effecting the other of said movei ments by said members when'said loosely mounted engagers are engaged. Y p

. 16. Ina coliing retort oven battery having retort chambers yadapted to be respectively externally heated by gas' burning combustion flues adapted to be subjected to periodic heatings of diilerent intensities and having regenerators in` communication withsaid flues and having reversing valves for reversing the ilow of gas and air for combustion in said lues, incombination: a reversal mechanism com'- prising a pair of oppositely disposed rotatable members each adapted for eii'ecting an opening and a closing movement of certain of said reversing valves when rotated an engager fixed on each of the members to rotate the same for effecting one of said movements by said member; an engager loosely mounted on-each of said members, each loosely mount ed engager being connected with the opposite rotatable member of the pair for rotating the member for effecting the other of said movements by the member; a plurality of progressively movable mechanisms, one of said mechanisms engaging said loosely mountedvengagersto rotate the oppositely disposed rotatable member of the pair, and the other of said mechanisms engaging the fixed engagers to rotate the members to which said fixed engagers are fixed.

17. Ina coking retort oven battery, in combination: a series of alternate substantially parallel retort chambers and Aheatingl walls therefor arranged side by side, each of said heating walls comprising combustion flues operable in alternation for inflow combustion and outflow of combustion products; a plurality of groups of regenerators communicably connected with said combustion fines. each group comprising regenerators arranged for simultaneousinflow and outflow; means to convey fuel gas to said flues; an air supply for the regenerators; waste gas outlets for the regenerators; periodically operable flow reversing devices for the regenerators and lines; and power transmitting means Afor transmitting power for actuating mechanisms one after another adapted for operating said reversing devices one after another.

18. In a coking retort oven battery, in

combination: a series of alternate substantially parallel retort chambers and heating walls therefor arranged side by side, each of said heating walls comprising combustion flues operable in alternation for inflow combustion and outflow of combustion products; a plurality of groups of regenerators communicably connect-ed with said combustion flues, ach group comprising regenerators arranged for simultaneous inflow and outflow; means to convey fuel gas to said fines; an air supply for the regenerators; waste gas outlets for the regenerators; periodically operable flow reversing devices for the regenerators and flues; and progressively movable means for actuating mechanisms one after another by progressive movement relative thereto adapted for opera-ting said reversing devices one after the other. Y

19. In a colring retort oven battery, in combination: a series of alternate substantially parallel retort chambers and heating walls therefor arranged side by side, each of said heating walls comprising combustion flues adapted to be subjected to periodic beatings of different intensities; a plurality of groups of regenerators communicably connected with said combustion iues, each group comprising regenerators arranged for simultaneous inflow and outflow; means to convey fuel gas to said fines; an air supply for the regenerators: waste gas outlets for the regenerators; periodically operable flow reversing devices for the regenerators and flues: and power transmitting means for transmitting power for actuating devices in succession adapted for operating said reversing devices in suecession.

20. In a coking retort oven battery, in combination: a series of alternate substantially parallel retort chambers and heating walls therefor arranged side by side, each of said heating walls comprising combustion fines operable reversely in alternation for inflow combustion and outflow of combustion products; a plurality of groups of regenerators cemmunieably connected with said combustion fines. each group comprising regenerators arranged for simultaneous inflow and outflow: means to convey fuel gas to said lues; an air supply for the regenerators; waste gas outlets for the regenerators; periodically operable How reversing` devices for the regenerators and flues; and progressively movable means for actuating mechanisms in succession by progressive movement relative thereto adapted for operating said reversing devices in succession.

2l. In a coking retort oven battery, in combination: a. battery of coking chambers and combustion flues therefor. and a battery of regenerators communicably connected with said combustion fines; means for admitting gas to said flues, means for admitting air to the regenerators; means for discharge of waste gas from the regenerators; flow reversing means for each of said regenerators; and power transmitting means for transmitting power for actuating mechanisms in sequence arranged common to all of said flow reversing means and adapted to operate said flow reversing means in sequence to periodically reverse the flow through the regenerators sequentially.

22. In a colring retort oven battery, in combination: a battery of coking chambers and combustion flues therefor, and a battery of regenerators communicably connected with said combustion flues, said regenerators being eommunicably connected with the tlues in groups comprising regenerators adapted for gas flow simultaneously in the same direction; means for admitting gas to said tluc; means for admitting air to the regenerators; means for discharge of waste gas from the regenerators; flow reversing means for each of said groups of regenerators; and power transmitting means for transmitting power for actuating mechanisms in sequence arranged common to all of said liow reversing means and adapted to operate said How reversing means in sequence to periodically reverse the iiow through the groups of regenerators sequentially.

n testimony whereof I have hereunto set my hand.

JOSEPH VAN ACKEREN.

for

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