D66. 10, 2,412,484 |:'_ WETHLY UNDERFIRED REGENERATIVE COKE OVEN WITHOUT SOLE CHANNELS Filed Dec. 29, 1942 7 11 / 111 11 11 1 1 1 11 11 11 11 1111 1 1 111111 111 1 111111 11 1 11 11 11 11 11 1 1 1111. 1, 1111 11 2 Sheets-Sheet l 1 1111111 1H 1111 11 111 1 11 11H 1 11 111111 1111 11 11 1 111 1 1 1 1 11 111 1 11 1 1 1 *1/11, /111,1111 , 1 1111 , 1, 1/111 1,11 1114/1, , 1 ///// r 111 1 ,1, ,[1111 I 1 1 1 1/1// /// //// 1 11f I 7.1 I,’ 11 11 I11, Z1171@171 101 1 I _“ 1 1“ 1 1 1Q 1l BY ATTORNEY Dec. 10, 1946. F, WE'THLY ‘ 2,412,484 UNDERFIRED' REGENERATIVE COKE OVEN WI"..OUT SOLE CHANNELS Filed Dec. 29, 1942 2 Sheets-Sheet, 2 g @ L; N! mu s ATTORNEY Patented Dec. 10, 1946 2,412,484 ‘UNITED "s'rA'rEs PATENT OFFICE" " ’ 2,412,484 UNDERFIBED BEGENERATIVE COKE OVEN WITHOUT SOLE CHANNELS . ‘ Frans Wethly, Manhasaet, N. Y. Application December 29, 1942, Serial No. 470,455 8 Claims. (CL 2025-141) . The general object of the present invention is to provide under?red ‘regenerative coke ovenbat teries with improved means for supplying air and lean fuel gas to the battery regenerators for pre heating therein and for withdrawing waste heat - ' 2 I the distribution piping including the horizontal, I supply and off-take pipes and their branches connected to the regenerators as above described, ' Y and the pipes through which rich fuel gas may be supplied to the heating ?ues through the usual ing gases from said regenerators. ' More specifi-v cally, the object of the present invention is to channels in the regenerator division walls, is lo cated in a shallow piping space directly beneath improve an under-?red regenerative coke oven the batterydeck and between the latter and a battery by dispensing with the usual regenerator ' subjacent wall of poor heat conductivity. Said sole channels formed in the lower portion of the 10 wall forms the ceiling of the'portion of the base-v coke oven brick work and providing, in lieu ment space in which the battery attendants move about in the performance of their usual regula tory and inspection duties, and forms an insu thereof, horizontal pipes extending transversely -of the battery in its basement space, andeach directly connected through a plurality of regula ble branch pipes to the lower ends of respective lation barrier substantially minimizing the trans mission of heat fromvthe distribution piping and regenerator sections directly above the different the underside of the battery deck to the portion branch pipe‘s. Each of said branch pipes is made regulable by the inclusion therein of a butter?y valve, or other suitable throttling device, acces sible for ready adjustment by an operator in the 20 basement space of the battery. ' In normal oper of the basement space beneath the heat insu lating wall. Advanta‘geously, moreover, the said piping space is used in recuperatively heating the combustion air passed into the regenerators for regenerative preheating prior to its passage to ation, each of said horizontal pipes serves alter the heating ?ues of the battery. ; nately as an off-take conduit through which heat The invention is adapted for use in batteries ing gases are withdrawn from the corresponding of various types and permits of an especially de regenerator section by the battery stack, and as 25 sirable heat distribution in coke oven batteries a supply conduit for atom‘ lean gas passing into in which the heating ?ueand regenerator ar the corresponding section for preheating therein. By thus eliminating the customary sole chan rangement is such that the setting of said ?ow regulating devices which will e?ect a proper dis ' nels inthe oven brick work structure, I am able, tribution of ?ow in one direction among the dif to reduce the height of the coke oven brick work 80 ferent ?ues of each heating wall, ‘ll insure a mass in a battery having regenerators and coking substantially similar distribution of flow in the / _ chambers of customary size and proportions, by as much as two feet or so, and thus reduce the weight of the coke oven bricks required in a large, but not abnormally large, battery by as much as 1,000 tons. The brick work weight thus saved is many times the weight of the piping and valves substituted for the sole channels. While the use reverse direction through said ?ues. I , The various features of novelty which charac terize vmy invention are pointed out with partic ularityin the claims annexed to and forming a part of this speci?cation. For a better under, standing of the invention, however, its advan ' tages, and speci?c objects attained with its use, reference should be had to the accompanying‘ of the invention may well result in some increase in the height of the basement. space, and conse 40 drawings and descriptive matter in which I have quently in the length of the columns extending up through the basement space of the battery, the required increase in the column material required is small in comparison with the above mentioned reduction in the amount of coke oven brick work needed. The distribution piping may be made in whole or in part of metal or of ceramic material, "and ' is readily accessible for cleaning and leakage eliminating repairs needed to avoid interference with the proper distribution of the heating ‘gas ?ow distribution, which the readily accessible valves or'other ?ow regulating devices in the illustrated and vdescribed preferred embodiments‘,v of the invention.v . ._' Of the drawings: Fig, 1 is a partial ‘vertical longitudinal section‘ - ~ of a coke oven battery; - Fig. 2 is a section with its right and lefthand portions taken on the broken lines 2-2-2 and 2—2A-—2A, respectively, of Fig. 1; and Figs. 3 and .4 are partial longitudinal and trans verse sections, respectively, of a battery of the cross-over type. / In Figs..1 and 2 of the drawings, I. have illus- I trated the use of the present invention in an a‘ under?red regenerative‘ coke oven battery having In a preferred form of the present invention, hairpin heating ?ues and of conventional type branch pipes are adjusted to effect. - 2,412,484 and form, except in respect to ‘the construction of the lower-portions of the regenerators and the conduit connections thereto. The coke oven brick work or mass A, ‘constituting the bulk of the coke oven masonry, is supported on a deck or slab of reenforced concrete B. The latter is directly supported in turn by suitably spaced 4 adjacent heating wall by the corresponding duct > I2 or i’. The regenerator partition walls L may be formed in a known manner by portions of the checkerbrick stacked up in the regenerators, The checkerbrick mass in 'each cell is advan tageously shaped to provide a shallow open space ~ M at the bottom of the cell. beams C carried by columns D which may be formed of steel or of reenforced concrete, and The regenerator arrangement shown in Figs. land 2 differs. however, from that heretofore customary in under?red coke ovens in respect extend upward through the basement space E 10 _ to the conduit provisions passing air and gas to above the battery foundation and for which the be preheated into the regenerators, and for pass deck forms a ceiling. ‘ ing waste heating gases away from the regenera Horizontal coking chambers F extend trans-i tors. Said conduit provisions shown in Figs. 1 versely of the brick work A between the opposite and 2, comprise piping in the basement space E sides of the battery, and alternate along 'the including horizontal pipes N, one beneath and length of the battery with heating walls, each parallel to each air regenerator I and pipes n of the latter being formed with vertical ?ues G beneath and parallel to the different gas regen and alternating ?ues 9, all arranged in a row erators 2'. Each pipe N is provided with an in extending from one side of the battery to the dividual conduit connection to the space M at other. Each ?ue G and an adjacent ?ue g are 20 the lower end of each of the regenerator cells connected at their upper ends to form a twin or into which the regenerator I above it is divided hairpin ?ue. ~ by its partitions L. Each such conduit connection - Pillar, or regenerator division walls H, extend comprises a branch pipe N’ extending vertically ing transversely of the battery are arranged one upward from the pipe N into a vertical passage bent th each coking chamber and one beneath 25 way formed through the deck member B and each heating wall and form side walls of side by through the thin brick work layer between the side regenerators I and i. The regenerators I are deck B and the space M of the corresponding re intended for use solely in preheating combustion generator section. Similar conduit connections air, but the regenerators i are adapted for op extend between each pipe n and the spaces M tional use in heating either combustion air or‘ 30 of the sections of .the regenerator i above the lean gas, accordingly as the ovens are being heat pipe.’ Each of the branch pipes N' and n’ in ed by the combustion of coke oven gas or other cludes an adjustable throttling or regulating de rich gas which does not require preheating, or vice 0, which may advantageously be, and is by the combustion of a lean gas such as blast shown as a butterfly valve. . furnace gas which does require preheating. The pipes N and 12 may be formed of metal or For convenience, I hereinafter refer to the of ceramic tiles’, and in either event means are regenerators I as air regenerators, and to the re- _ advantageously provided to prevent objection generators i as gas regenerators. In the ar able heat transmission from the pipes to the por _rangement shown inFigs. 1 and 2, the pairs of ' tion of the basement space beneath them. ' The air regenerators I alternate with pairs of gas re 40 desired heat insulating effect may- be obtained in generators 2'1 and each regenerator I is connected a desirable manner by providing a heat insulating by individual ducts or channels I’ to each of the wall P beneath and closely adjacent to the under ?ues G in. the two heating‘ walls immediately sides of the .pipes N and n. The wall P thus adjacent the regenerator. Similarly, each re forms a ceiling for the portion of the basement generator i is connected by individual ducts i’ to 45 space in which the oven attendants perform their each of the heating ?ues g in the two immediately regulatory and‘inspection duties, forms the floor adjacent heating walls. or‘ bottom wall of a shallow piping space PA In operation with rich fuel gas, each of the beneath’ the deck B in which the distributing ?ues G in a single heating wall receives rich fuel pipes. J, 7‘, J’, 7", .N and n and the regulating 50 gas during those periods in which it is acting on device J2 and Care located. Advantageously, a. combustion ?ue, through channels K in the also, the space PA serves as a recuperative space subjacent pillar wall H and corresponding in which the combustion 'air which is to be pre branches J ' from a rich gas distribution pipe J, heated in the regenerators, passes to~ the regen extending transversely of the battery through the upper portion of the subjacent basement 55 erators, and in doing so absorbs heat from the pipes N and n, and their branches N’ and n’, as space. During the rich gas operation periods in well as from the underside of the deck B. which the fiues g in the same heating wall serve The wall P may be formed and supported in as combustion ?ues, they receive rich gas through any convenient manner, but is advantageously corresponding channels K in the pillar wall H formed and disposed to permit its ready removal and branches 9" from a horizontal rich gas dis 60 and replacement in sections when necessary to tribution pipe 9' located in the basement space of the battery along side the OLL‘I'GSDOIldlDg pipe _J. The amount of gas supplied by each of said pipe branches J’ and a" is regulable by adjust ment of a corresponding valve or ‘other regulat 65 ing device J2.v - facilitate repairs to the distribution piping. Ad vantageously, the wall P is formed with suitably located openings P’ which are normally closed by movable closure members P2, and through which the valves 0 and J2 are accessible for ad lustment. In the desirable construction illus In so far as above described, the coke 'oven trated in Figs. 1 and 2, the wall P comprises edge battery shown in Figs. 1 and 2 is of known type, to edge slabs of some suitable heat insulating and includes‘ nothing claimed as novel herein. which may well be of such light weight, In accordance with known practice, also, each 70 material, heat insulating material as is commonly used of the regenerators I and i is separated by vertical to form the heat insulating outer portions of partitions L into an end to end row of regenera furnace walls. As shown, said slabs are sup tor cells, sometimes called individual ?ue re-. ported on light metal beams P1‘. The latter ex generators, each of which is connected at its tend between and have their ends supported by upper end to one, and only one, ?ue G or g in an 75 9,412,484 the deck ‘supporting columns-D. - The closure regenerator sole channels alternately to a waste member P’ for the access openings _P' in the wall . . 'heat tunnel and to the atmosphere. ‘only in that P, may be small slabs which are formed of the ' same material as the, body portion of the wallP, and which are of greater area] extent than the openings which they close, and are supported by the wall P and are slidable along- the upper’side of said wall between their open and closed po sitions. _ , The means employed to withdraw waste heat ing gases from the pipes N and n during periods in which the regenerators, connected to those' the valves Q include no means for connecting the sole channel to the atmosphere. ‘ The valve 8 diagrammatically illustrated by ‘way of example in Fig. 2, comprises a chamber s'in continuously > open communication with the corresponding pipe 1:. Communication ‘between the chamber 8' and space PA through an inlet passage .92 is con trolled by a valve member s3 and communication between the chamber 8' and the lean gas- supply. ' main is controlled by a valve orcock s‘. In‘ op pipes, are operating as “o " regenerators, and. eration with lean gas fuel the member smremains to supply combustion air or lean gas to said pipes ' continuously closed and the valve 34 is opened for preheating in the regenerators connected 16 and closed in regular alternation by the battery > I thereto, when the latter are operating as “on” reversalmechanism at the ends of the successive regenerators, may take any of the forms hereto- ' . fore employed to withdraw heating gases from, and to supply combustible agents to be preheated to regenerators through their sole channels. Ad- _ vantageously, however,‘ the pipes N and n are ‘ arranged to draw combustion air directly from the space PA. _ In the arrangement shown in Figs. 1 and 2, each of the pipes N and n is connected at one end to an individual reversing valve Q which reversal periods. In operation with rich fuel gas the valve 84 is closed and the member s3 is opened, and closed by the battery reversing mechanism in regular alternation at the ends of successive reversal periods. The valves 8 are not provided ' with inlets controlled by valves s‘, but otherwise may be exactly like the reversing'valves s. ‘ The recuperative effect obtained by moving‘ the combustion air through the space PA before passing it into the regenerators, is substantial, alternately opens and closes communication be and makes it possible to obtain a suitably high tween the pipe and a waste heat tunnel R. The thermal emciency and to maintain suitably high latter?extends longitudinally of the battery at combustion temperatures with smaller regenera one side of the latter, and leads to the usual 30 tors than areirequired in batteries having the chimney (not shown) for impressing draft suc usual regenerator arrangements. The combus . tion on the battery heating system through the tion air moving through the space‘PA and the reversing valves Q and pipes N and n. As will heat insulating wall P, cooperates‘ to insure a. be understood the‘ valves Q connected to vhalf of relatively low rate of transfer of heat to the ‘ the pipes N and n are open or closed during the 35 basement space below the wall P from the battery reversal periods in which the valves connected structure and apparatus above that wall. With to the other pipes N and n are respectively closed v the wall P formed of such readily available mate As shown in Figs. 1, and 2, the end of each pipe ' N at the opposite side of the battery from the waste heat tunnel R is connected to an individual rial as is now used extensively in the construc tion of the outer heat insulation portions of furnace walls, the wall P may be light in weight and relatively inexpensive to construct and to open up and replace, as may be required to give pipe may be alternately put into and out of com access to the distribution piping above the wall. munication with the space P'A. Similarly, each With the combustion air drawn through the space pipe n has its end remote from the waste heat . , PA above the wall and into the regenerators by tunnel R connected to an individual reversing‘ the battery stack section, such leakage through valve _s through which the last mentioned pipe the joints and cracks in the wall P as may occur, end may be closed‘ during one set of reversal will be upward and will contribute to desirably periods,‘ and during alternate reversal periods reversing valve S through which that end of ,the low temperatures and good atmospheric condi- ' may be open either to the space PA or to a. lean 50 tions in the basement space beneath the wall. gas supply main T. accordingly as the battery The excess of the average air temperature in ‘is being heated by the combustion of rich gas or lean gas, respectively. " ' ~ The major portion at least of the air thus drawn into the pipes N and n from the portion ‘ of the space PA adjacent one side of the battery, advantageously enters that space adjacent the opposite side of the battery. To that end the space PA may be open to the external atmos phere at the side of the battery adjacent the waste heat tunnel R or preferably, and as shown in Fig. 2, is in direct communication with the basement‘ space through openings P4 in the por @ tion of the wall P adjacent the waste heat tunnel R. As will be apparent, the leakage of a small portion of the combustion air into the space P1 through the openings P2 is not practically ob jectionable. - i ‘ As will be apparent, the above mentioned re versing valves, or now boxes as they are some times called, may take various forms, and may :be'constructed and operated in accordance with Y the space PA above the temperature 'of the exter nal atmosphere, is su?lcient‘ to desirably preheat the rich fuel gas supplied through~ the pipes J ' and kN’, so as to avoid objectionable accumula tions of liquid condensate and naphthalene in the rich gas fuel supply piping without giving rise to any signi?cant‘ increase in cracking action on the'rich fuel gas as it passes through the hotter upper portions of the channels K. During each reversal period in which the ?ues G of any heating wall are‘. serving as up?ow com bustion ?ues, the regenerator I and the regenera tor i connected to those ?ues serve as “on" re- . generators, and the corresponding reversing valve 5 then passes combustion air into the pipe N connected to said regenerator I, and the reversing valve s then passes eithercombustion air- or lean gas into the pipe n connected to the said re generator i. During this period of I operation a , the usual practices of the art. The valves Q, for example, may differ from the most usual type of draft suction is impressed on the lower ends of the ?ues gin the same heating wall by the waste heat tunnel R. through the corresponding ‘re reversing valve employed to connect coke oven 75 generators I and i, the pipes N and n, and revers- I ~ . 2,412,484 8 ing valves Q through which said ?ues g are con nected to the waste heat tunnel R. ' When ?ow through the battery heating system is reversed at the end of the reversal period, which customarily is one-half hour, the reversing valves Q; S and s are adjusted to disconnect from the waste heat tunnel P the- pipes N and 11 previously connected thereto, and ‘to connect said pipes to the space PA and to the gas main R. At the same time each of the reversing. valves S which pre viously connected one end of the associated pipe . ?ow through the associated regenerator spaces and ?ues, will also insure the proper distribution of down?ow through those spaces and ?ues. The coke oven shown‘in Figs. 1 and 2 is of such char- 1 acter, as is‘the coke oven shown in Figs. 3 and 4. In Figs. 3 and 4, I have illustrated the use of the present invention in an under?red coke oven battery of well known type, in which the upper ends of the heating ?ues GA in each heating wall are connected by a plurality of cross-over connec tions GB to the upper ends or the similar vertical N to the space PA, is adjusted to close that pipe 1 end, and each reversal valve s which previously heating ?ues GA in an adjacent heating wall. The di?erent cross-over connections GB extend adjusted to close thatpipe end. As those skilled in the art will understand, by suitable adjustments of the throttle valves 0 in the associated branch pipes N’ and n’, it is read ily possible to maintain approximately‘ the same 20 veach cross-over connection directly connects the connected one end of its associated pipe n to the - ing over the same coking chamber F are dis space PA or to the lean gas supply main T, is then 15 tributed along the length of that chamber so that constant pressure at the tops of the various ?ues G and g, and to maintain one approximately con stant pressure at the bottom of each regenerator space supplying a preheated combustible agent, .and another approximately constant pressure at 25 the bottom of each regenerator space through ' upper end of a small group of side by side ?ues in an adjacent portion of'the heating wall at one side of the coking chamber to the upper ends of ?ues of a similarly located small group of side by side ?ues in the heating wall at the other side of the coking chamber. In the conventional cross-over and heating ?ue arrangement shown in Figs. 3 and 4, each heating ?ue is formed with 28 vertical ?ues and has 7 cross-over connections GB. In consequence, each cross-over connection serves to directly connect four side by side flues which waste heating gases are passing. in each heating wall to four side by side ?ues in The simpli?cation of the coke oven structure an adjacent heating wall. and the reduction in the masonry weight and con struction cost made possible by the use‘ of the 30 The regenerators of the battery shown in Figs. 3 and 4, comprise a pair of end to end gas regen present invention, - will be readily apparent to erators i adjacent each end of the battery, a pair those skilled in the art. It will be apparent, also, of end to end air regenerators I respectively that the pipes N and n, their branches N’ and n’ alongside and immediately adjacent said pairs of ‘and the valves 0, may be cleaned and adjusted, regenerators i,‘ and a plurality of sets oi?v air and 85 and operating defects which they may develop gasv regenerators intermediate the air regenera may be eliminated with relative ease if and when the need therefor arises. ‘ ‘ tors I. Each of said intermediate sets of regen- - erators comprises a pair of end to end gas regen erators id and a pair of end to end air regenera 1 and 2, cannot be obtained or approximated in 40 tors I at each side of the gas regenerators ia. Each heating flue GA is connected at its lower any coke oven battery heretofore in use and in The desirable uniformity of heat distribution obtainable with the apparatus illustrated in vFigs. cluding regulating provisions which are as simple, as accessible, and as readily operable as are the butter?y valves 0. The expression, "uniformity of heat distribution," as used herein, means such relative rates of heat transfer to a coking charge from di?erent portions of the adjacent heating walls, as will complete the coking operation in ap proximately the same time of each portion. of the charge extending between said heating walls, re-_ - end to a corresponding air regenerator I and to a corresponding gas regenerator i or w. Each re generator I andi is connected at its upper end to ?ues in one adjacent heating wall only, but each gas regenerator id is connected at its upper ends to the lower ends of heating ?ues GA in each of the two adjacent heating ?ues. Piping including the usual distribution pipes JA extending trans versely of the battery in the basement space E, ' may be used to supply rich fuel gas to the heating gardless of the distance of said portion from vthe top or end edges of the charge. Such uniformity In so far as above described, the battery shown of heat distribution requires a definite non-uni in Figs. 3 and,4 is of well known type and form, formity in the rates of heat supply by the vertical different ?ues in each heating wall, to make up 55 and includes nothing claimed as 'novel herein. The air and gas regenerators shown in Figs. 3 for the heat radiation losses at the sides of the and 4, however, are like those shown in Figs. 1 battery, and to compensate for the customary and‘ 2, in that they include no sole channels progressive increase in- the thickness of the formed in the coke oven brick work. Each of charge from the “pusher” side to the “coke" side of the battery. In general, therefore, the attain 60 the regenerators of Figs. 3 and 4 receive air or lean gas to be preheated in the regenerator from, . ment of uniform heat distribution with the con and discharges waste heating gases into a corre struction shown in Figs. 1 and 2, requires signi? sponding supply and o?take conduit N or n which, cant variations in the adjustment of different reg as shown, is located in a recuperator chamber. ulating valves 0 associated with each heating wall, so as to compensate for variations in ve 65 PA like that shown in Figs. 1 and 2. In the particular battery design shown in Figs. locity head and static pressure along the length of 3 and 4, there is a waste heat tunnel RA at each vthe pipes N and n, as well as to vary the rates of side of the battery, and the supply and o?take ?ow through the associated heating ?ues 81 ac conduits N are arranged in end to end pairs, as cordance with their different heat output require; are the conduits n, and at each side of the bat 70 ments'. ‘ tery there is a lean gas supply main TA. Each Especially good heat distribution results are waste heat tunnel RA is connected to each of obtainable by the use of an invention in a coke‘ the adjacent conduits N by an individual revers oven battery of such character that the adjust inc valve QA, and each waste heat tunnel RA ment of valves 0 or analogous control devices which will insure the proper distribution of up 76 and each lean gas supply main TA is connected i ' auaasc - . 1o - - = to each of the adjacent conduits 11. through a corresponding reversing valve qa. In its con forms of the apparatus disclosed without depart struction and proportions, each reversing valve QA may be exactly like the most usual time of I the appended claims, and that in some cases cer ing from the spirit of my invention as set forth in tain features of my invention may be used to advantage without a corresponding use oi other reversing valve now in use to connect a coke oven regenerator sole channel alternately to_a features. waste heat tunnel or to a source of combustion ' Having now described my invention; what I‘ air, except that each valve QA has its combus . claim as'new and desire to secure by Letters tion air inlet Q5 connected to the space PA. ' Similarly, each reversing valve qa differs from the Patent, is: 1. A regenerative, under?red' coke oven bat most usual form of reversing valve employed to ?ow into and out of the sole channel of a coke tery, comprising a masonry oven and regenera . tor structure formed with horizontally elongated oven regenerator which is optionally usable in - - coking chambers extending transversely of the preheating combustion air and lean fuel gas, ' ' battery and with heating walls alongside the only in that each valve qa has its combustion air inlet a5 in communication with the space PA. In the crossover type of oven shown in Figs. 3 and 4, all of the ?ues GA in each heating wall coking chambers and having vertical ?ues and with regenerators beneath said chambers and heating walls and connected to the ?ues above them, supporting means for said structure com serve simultaneously as up?ow ?ues or down?ow ?ues. In consequence,_in operation with rich ' fuel gas each of the di?erent ?ues GA in a heat prising a foundation underlying and spaced away ' from the underside of said structure and a plu rality of horizontally distributed portions ex’ tending upward from the foundation into sup porting engagement with said structure, a hori zontal heat insulating wall dividing the space ing wall may receive rich fuel gas during alter nate reversal periods through an individual branch J’ or 7“ including a regulating device J’, from a single rich gas distribution pipe J or i. In Figs. 3 and 4, each of the di?Eerent regen between said structure and foundation into an upper air space'and a lower basement space form erators I, i, and ia may advantageously be di ing a passageway extending transversely of the battery for substantially its full width and vided by partitions LA into a row of sections ex tending’ transversely of the battery, and each of adapted for the use of battery attendants, a said sections is directly connectedto the lower 30 plurality of horizontal pipes ,located in said air ends of four ?ues GA, which have their upper _ space and extending transversely of the battery ends directly connected to a corresponding cross and each having a plurality of uprising branches over section GB. Each of said regenerator sec distributed along its length and respectively con tlons is connected by a corresponding branch nected to adjacent regenerator portions displaced pipe N’ or n’ including a butter?y valve or other from one another transversely of the battery, regulating device 0, to the corresponding conduit means for alternately supplying a combustion N or n. . agent to and withdrawing products of combus Substantially the same advantages obtainable tion from the different regenerator portions with the construction shown in Figs. 1 and 2, are obtainable with the construction shown in Figs. 3 and 4. With the construction shown in Figs. 3 and 4, as with that shown in Figs. 1 and 2, ' through said pipes, said means being arranged the adjustment of the associated regenerator supply regulating valves 0 which will insurle nets of combustion are withdrawn from the last to pass the combustion agent through each oi said pipes during regenerator reversal periods alternating with reversal ‘periods in which prodmentioned regenerator portions and arranged to proper distribution of up?ow among the different 45 pass the combustible agent through each of said ?ues in each heatingwall, simultaneously serving pipes-during reversal periods in whichproducts as up?ow ‘?ues, will also insure the proper dis- ' of combustion are being withdrawn through an tributlon 'of down?ow through those ?ues when the ?ow through them is reversed. This desir able result is insured ‘in each arrangement by the fact that none of the ?ow paths including the different fines-‘of a heating wall and the “on? and “off” regenerator sections in series with the ?ues, comprises portions di'ssimilarly displaced 50' adjacent pipe, whereby temperature differences between said pipes are reduced by 'thetransfer of heat through said air space from the more highly heated to the less highly heated pipes. 2. A coke oven battery as speci?ed in claim 1, including means accessible for adjustment by an attendant in said basement space-for regulating from the sides of the battery to any signi?cant 65 the distribution or ?ow-through, the branches extent. While in they arrangement shown in connected to each of said pipes. Figs. 3 and 4, each cross-over connection GB 3. A coke, oven battery as speci?ed in claim 1, ' - receives gases moving to it in parallel streams» through four different ?ues in one heating wall in which the combustion agent passing to the regenerator portions through some at least of ' and distributes those gases among four ?ues GB 60 said pipes is air passing into said p'pes through in an adjacent heating wall, the side by side said air space‘ and thereby preheated. _ ?ues in each group are close together. In con ' 4. A coke oven battery as speci?ed in claim 1, sequence, the distribution of ?ow through themv is not signi?cantly affected by differences between the pressures in different portions of the con including rich Iuel gas supply piping including regulating'devices located in said air space, and nections to the ends of the ?ues as it is, for tributedopenings through which said adjusting example, in coke oven batteries of known type in which a considerable number of side by side vertical heating ?ues are connected in parallel to a horizontal channel. in which said horizontal wall is formed with dis devices may be adjusted. - , - 5. -A coke oven battery'as speci?ed in claim 1, in which rich fuel gassupply piping ‘and devices 70 adjustable to regulate the supply or combustible While in accordance with the provisions of g-asto the different ?ues are located in said air the statutes, I have illustrated and‘ described the space and in which ‘said branches include regu best forms of embodiment of my invention now lating devices and in which said horizontal wall is known to me, it will be apparent to, those skilled 1 formed with distributed openings through which _ in the art that‘ changes may be made in the 76 said devices may be adjusted. 2,412,484 11 6. A regenerative under?red coke oven battery, comprising a ‘masonry structure above a. basement space and formed with horizontally elongated coking chambers extending transversely of the battery, heating walls alongside the coking cham bers and formed with vertical ?ues, and regener rows of vertical heating ?ues alongside said cok- ‘ ing chambers and with regenerators below said coking chambers and ?ues and having their upper ends connected to the lower ends of said ?ues, regenerator supply and o?take conduits located in said space and extending transversely of the battery and each provided with a plurality of branches displaced from one another transversely of the battery and each of which extends upward ators beneath said chambers andheating walls and connected to the said ?ues above them, pipes extending transversely of the battery beneath said structure and each having a plurality of 10 into said masonry and‘ communicates with a directly adjacent regenerator section, and a sepa uprising branches distributed along its length and rate ?ow regulating device in each of said connected to adjacent regenerator portions dis branches andaccessible for adjustment from said ' placed from one another transversely of the bat basementspace, said ?ues being'iconnected at tery, said branches having individual ?ow regu their upper ends to provide a plurality of ?ow lating means accessible for adjustment from the paths each having all of its portions substan basement space, means for alternately passing in tially similarly displaced from the sides oi.’ the opposite directions through each of said pipes battery so that a setting of said ?ow regulating and its branches, a combustible agent to be pre devices e?ecting a proper distribution of ?ow in heated in/the regenerator portions connected to one direction among the di?erent fines of each said branches, and heating gases withdrawn from 20 heating wall may effect a substantially similar said regenerator portions, means for supplying distribution of ?ow in the reverse direction rich fuel gas to said ?ues comprising distribution through said ?ues, and a horizontal partition pipes below said structure, uprising channels in ‘separating the basement space into an upper said structure, and means below said structure ‘chamber including said conduit and branches,‘ 25 for regulating the gas flow through said channels, and a lower passageway extending transversely and aheat insulating wall below the said‘ struc of the battery substantially beneath each heat ture ‘and spaced away from the latter and sepa ing wall through which an oven attendant may ‘ rating the space beneath said structure into an move in adjusting the ?ow regulating devices in upper chamber in-which said pipes are located, branches. and a subj acent space forming the passageway for 30, said 8. A regenerative underflred coke oven battery an oven attendant required for under?re opera as specified’ in claim 1, comprising reversing valves external to said basement space, to which 7. In a regenerative under?red coke oven bat the ends of said pipes are connected. tery having a basement space and masonry above said space and formed with coking chambers ex 35 tion. - - ' ‘ tending transversely of the battery and with rRANs WETHLY.