US2764110A - Fan end construction for furnaces - Google Patents

Description

p 25. 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Shee c l w ZM 0% Sept. 25, 1956 H. HOSBEIN FAN END CONSTRUCTION FOR FURNACES 5 Sheets-Sheet 2 Filed April 1, 1952 p 25, 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Sheet 3 (I I 5 Li 25' 1 hag/J M 03 69 p 25, 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Sheet 4 Sept. 25, 1956 L. H. HOSBEIN 2,764,110

FAN END CONSTRUCTION FOR FURNACES Filed April 1, 1952 5 Sheets-Sheet 5 United States Patent Ill., assignor to M. H. De- Ill., a corporation of Dela- Louis H. Hosbein, Glencoe,

trick Company, Chicago, ware Application April 1, 1952, Serial No. 279,796 7 Claims. (Cl. 110-99) My invention relates to furnace wall structure, and more particularly to a fan end wall construction for furnaces.

My invention relates particularly to a furnace wall construction in which the refractory members are exposed to high temperatures encountered in furnaces and which are, preferably, sectionally supported by means of a metallic framework, and particularly to a fan end construction in a furnace, in which the wall forming members are sectionally supported by means of a metallic framework, which is so related to the refractory wall forming members as to be remote from the high temperature zone in which the refractory wall forming members are located.

it is a particular purpose of my invention to provide a fan end construction of the above referred to character, in which refractory members are provided between the metallic framework and the refractory wall forming members in the form of refractory bracket members, so constructed and arranged that the fan end portion of the furnace wall structure has a rounding inner surface approaching a convex curve, that has a much smaller radius than has been previously capable of being attained in a structure in which refractory hanger members or bracket members are interposed between the metallic mounting means and the wall forming members that are exposed directly to the heat of the furnace.

In order to accomplish this purpose the refractory hanger or bracket members that connect the metallic structure with the wall forming members are mounted in horizontal rows in staggered relation so that said refractory hanger members can be mounted at relatively small acute angles to each other, to accomplish the desired sharpness in the turn of the wall at the corner portion or fan end, that would not otherwise be possible with such refractory bracket or hanger members. The refractory bracket or hanger members have to have the necessary strength to properly support the wall forming members and are preferably relatively narrow or thin as compared with the wall forming members, and to accomplish this are made, preferably, of the form of the refractory hanger members disclosed in the patent to Louis H. Hosbein and Louis Ellman, No. 2,387,663, patented October 23, 1945, on Furnace Arch or Roof Construction.

It is a specific purpose of my invention to provide a connecting refractory wall structure providing a rounding corner between a pair of relatively angularly disposed refractory Walls, comprising refractory hanger members and means for mounting said hanger members in staggered relation to each other, said hanger members supporting wall forming refractories, each hanger member preferably supporting a plurality of such wall forming refractories. While said connecting Wall structure may have various angular relationships and come within the spirit of my invention, the preferred form of my invention provides a connecting refractory wall structure or fan end structure providing such a rounding corner between a vertical wall and a horizontal wall of a furnace structure.

It is a further important purpose of my invention to provide a fan end construction for furnaces comprising horizontal rows of refractory hanger members, the hanger members of each row extending at an oblique angle to the members of an adjacent row and in staggered relation thereto, and wall forming refractories supported from said hanger members, said refractory hanger members being mounted in ascending relation in said fan end from a bottom row of vertically extending hanger members to a top row of horizontally extending hanger members, and to provide metallic bracket means or hangers for mounting said refractory hanger members on a metallic framework.

It is another important purpose of my invention to pro vide metallic bracket means for fan end constructions of furnaces that has a body portion provided with means for mounting the same on the metallic framework and that has a plurality of flanges thereon extending at an oblique angle to each other whereby refractory hanger members may be mounted on a row of said metallic bracket members in horizontally extending rows, with the rows having the oblique relationship and staggered rela tionship above referred to.

By the arrangement of the refractory bracket members in their overlapping staggered arrangement, the refractory wall forming members provide a fan end construction in which the face of the wall exposed to the heat of the furnace is generally rounding or follows substantially a convex curve that is of relatively short radius in spite of the fact that the refractory hanger members are interposed between the wall forming refractories exposed to the heat and the metallic mounting means therefor, thus preventing any appreciable transfer of heat: to the metallic mounting means from the wall forming refractories, while at the same time providing a relatively sharp turn in the connecting wall portion between the vertical and horizontal walls above referred to.

Other objects and advantages of my invention will appear as the description of the drawings proceeds. I desire to have it understood, however, that I' do not intend to limit myself to the particular details shown or described, except as defined in the claims.

In the drawings:

Fig. 1 is a view partly in elevation and partly in sec tion, of my improved fan end construction, a fragmentary portion of a vertical and a horizontal wall between which said fan end construction is provided being shown therein.

Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1.

Fig. 3 is a section taken of Fig. 1.

Fig. 4 is a perspective view of the metallic bracket memher or hanger member detached.

Fig. 5 is a fragmentary perspective view of a portion of the fan end construction, showing a plurality of the metallic hanger members with some of the vertically extending refractory hanger members mounted in position thereon and with one of the wall forming refractories shown in position on said refractory hanger members.

Fig. 6 is a similar view, showing fragmentary portions of the metallic hanger members and showing portions of two rows of staggered relatively obliquely extending hanger members in position thereon, and showing some of the wall forming members in position on certain of said refractory hanger members.

Fig. 7 is a similar fragmentary perspective view, showing some of the refractory hanger members of an additional horizontal row in position, and additional wall forming refractories in position, and

Fig. 8 is a similar perspective view, showing the addi tion of some of the refractory bracket members of the uppermost row or horizontally extending refractory or substantially on the line 3-3 bracket members in position and showing some of the wall forming refractories associated with said uppermost bracket members added to the refractory members shown in Fig. 7.

Referring in detail to the drawings, my improved fan en'd'construction is shown as being provided in a furnace structure that has a framework including a horizontal frame member 10, which is in the form of an I-beam having upper and lower flanges: 11 and 12, a horizontally extending frame member 13 having lower flanges 14 and an upper flange on which the vertically extending frame member 15'and the horizontally extending channelfrarne member 16are mounted.

The frame member 10 is connected with the frame member 13 by means ofthe clip 17, it'being, of course, understood that therearea plurality ofthe frame members 10 in a furnace structure ofthis character mounted ona plurality offframe members 13, asin the, structure shown in the above referred to Hosbein and Ellman Patent No. 2,387,663. The horizontally, extending top, wall, ofthe furnace is, shown as being constructedin the same manner as in the above referred to patent, being suspendedfrom, the frame members 10 by meansof metal bracket members 18), which in turn suspend refractory bracket members 19; and from. said refractory hanger bracket members. 19. are suspended the wall forming refractories. 20,. said refractory hanger bracket members 1'9-and refractory members 20, being of the. form shown in the, above referred to Patent No.- 2,3 87,663, and related to each other in the same manner as are said refractory bracket members and said refractory wall forming members in said patent.

The channel member 16 corresponds to one of the channelmembers shown in the co-pending application of Louis H..Hosbein and Louis Ellman, Serial No. 787,740, 0

filedINovember 24, 1947, and now Patent No. 2,660,050, on Tile. Bracket Mounted Furnace Wall Construction, and has a rib or flange 21 extending upwardly therefrom, on which the vertically extending bar 22 is mounted, as.we-ll.as a bracket 23, which is provided with suitable means for, supporting the refractory brackets24, which are of the same construction as the hangers 19, and which support the wall forming refractories 25 of the vertical wall in a manner disclosed in detail in said application of Louis H. Hosbein and Louis Ellmani Myimproved fan end construction is shown as being mounted between the horizontally extending top wall having the wallforrningrefractory members 20 and the verticallyextending wall having the wall forming refractories 25, sectionally mounted and supported in the manner above referred to. My improved fan end construction comprises aplurality of metallic hanger members 26, from the body portion of which extend a pair of laterally extending ears 27 that are provided Withnotches or recesses 28 therein, one of said hanger brackets being shown inFig. 4. Said recesses 28 accommodatetheupper flanges 11,0f frame'members 10 in the manner-sh wn in detailinFig 2 of the drawings,

Each: of said metallichanger members is also provided with a pair-.of laterally extending cars 29, whichare provided with, notches or recesses 30 to accommodate the lower flanges 12 of the frame members 10 in the manner illustratedinFig. 2. Eachof said metallic hanger membershas a webportion 31provided with openings through whichthe bolt 32' extends, said boltalso extending through anopening in the web portion of the l-beam 10 and when the .nut 33 is tightened on the bolt 32 it'will draw the head- 34 of the bolt against the web portion 31 so that two adjacent metal, hanger brackets 26' will be clamped to a framemember To) in the position shown in the-drawings. Said hanger members are also provided with laterally extending ears; 35 and 36 on each side thereof, respectively, that engage-the edges of theflanges 11 and 12 and serve as spacingmeans to hold the metallic hanger brackets 26in fixedposition on the frame meme bers and in proper parallel relationship to each other.

Each of said metallic hanger members also has" a rearwardly extending upper portion 37 that is of a hooklike character and which hooks over the flange 14 of the frame member 13. Thus each of the hanger members 26 serves not only as a hanger member for the refractories, but as means for connecting the frame members 13 and 10 in amanner similar to that of the clips 17 The web portion 31' has a reduced upper end portion 38, which hasa rearward extension 39 that serves as a, stiffening and openended box-like portion at the lower end ofthe hanger member 26. Said walls 43 have upwardly inclined bottomedges 44 extending substantially parallel to the inclined walls 41, upwardly inclined edges 45'that extend from the forward or inner ends of the edges 44; and downwardly inclined edges 46 that extend from the wall 42 to the edges 45.

In the usual position in which themetallic bracket member 26 is used, the web portion 31 extends vertically, as do the ears 27 and29, while the cars 35 extend horizontally. The walls 43 are provided with flanges 47 extending laterally therefrom and ordinarily extending horizontally, being parallel to the cars 35. Flanges 48.

are provided that extend outwardly from the walls 431 along the inclined marginal edges 45 and at an angle of substantially 60 to the flanges 47, the flanges 47 and 43 extending outwardly in opposite directions from the walls 43. Flanges 49 are also provided that extend inwardly from the walls 43 toward each other along the marginal edges 44 of said. wall and bisect the angle between the flanges 47 and 48, extending at an angle of 30 to both the flanges 47 and 48. The flanges 48 thus also extend atan angle of 30 to thefianges 40 on theupper end portion ofthe hanger member 26.

Mountedon the upstanding portion having the .flanges 40. of. the hanger member 26 is the bracket 54?, which hasa slot; 51 in the outer or rear wall 52 thereofto accommodateithe web portionv 4,8, and whichhas a pair. ofparallel forwardly extending-walls 53 that engage the flanges 40' and'extend forwardlytherefrom, terminating in-flanges54 that are inwardly directed towardeach other. The topedge portion of. the web 31. limits downward. movement of the; bracket, member 50. and the fianges54, are, spaced from the flanges 40 when, said bracket meme berisflnitsfinal position, as will be explained. below.

The refractory hanger members thatare. mounted on the; metallic hanger members are the same in construc tion as the refractory hanger members 19 and the re fractory bracket members 24, but in order to more clearly distinguish the positions of, the various refractory hanger members in the fan. end construction, the refractory hanger members: of the various rows are. designated by the numerals 119, 219, 319 and. 419 for the refractory hanger members in the lowermost or first row, second row, third row and fourth or uppermost row, respec: tively. Each of the refractory hanger members 19, 1-19, 219, 3,19 and. 419- are provided withlong, narrow body portions that are substantially rectangular in outline. Said refractory hanger members-are the same in shape and construction as the refractory hanger members shown in the patent to Hosbein and Ellman, No. 2,387,663, previously referred to.

Said refractory hanger members have flat rectangula-r inner andouter facesSSand 56,- the inner, faces 55 conare a pair of parallel spaced walls 43, which form a channeled or open bottomed stituting the bottom faces of the block-like hanger mem bers in all positions thereof, except that of the hanger members 419, and the outer faces 56 constituting the upper faces of said hanger members in all positions thereof, except those of the hanger members 419. Said block-like members also have flat end faces 57 and 58 and flat side faces 59 and 60, thus providing plane top and bottom faces, plane end faces and plane side faces on said blocks. The side faces 59 and 60 have a pair of aligned grooves 61 and 62 therein, the grooves 62 being relatively short with respect to the grooves 61. The short grooves 62 and the long grooves 61 on the faces 59 and 60 lie opposite each other. Each of said hanger blocks is also provided with pairs of recesses 63 therein that open into the side faces 59 and 60 and into the end face 57 and pairs of similar recesses 64 therein at the opposite ends of the blocks, opening into said side faces and end faces 58. There is thus a connecting portion 65 of the maximum thickness of the block provided between the recesses 63 and 64 and a connecting portion 66 of the maximum thickness of the block provided between the long grooves 61 and the short grooves 62, and thus there is a portion of maximum thickness of the block extending from the lower face 55 thereof to the upper face 56 thereof. The recesses 63 and 64 have inclined wall portions 67 and 68 and the walls of the grooves 61 and 62 are also inclined, as will be obvious from the drawings.

The lowermost row of refractory members 119 is mounted on the flanges 47 of the metallic hanger members 26. Said refractory hanger members 119 are interposed between two laterally adjacent metallic hanger members 26, with a flange 47 of one of said members in engagement with a groove 61 of one of said refractory hanger members 119 and the flange 47 of the next adjacent metallic hanger member 26 in engagement with the opposite groove 61 of the said refractory hanger member 119. The refractory hanger members 219 are mounted each on one of the metallic hanger members 26, with the flanges 49 on said metallic hanger members 26 in engagement with the opposite grooves 61 of said refractory hanger member, the upper ends of the flanges 49 being adapted to engage the upper end walls of the grooves 61 where the connecting wall portions 66 are provided to limit downward movement of the refractory hanger members 219 on the metallic hanger members 26. As the flanges 49 extend at an angle of 30 to the flanges 47 the hanger members 219 are mounted in a position extending at an angle of 30 to that of the position of the refractory hanger members 119. It will also be noted upon reference to the drawings that the hanger members 219 alternate with and are staggered relative to the hanger members 119, and that the outer or upper end portions of said hanger members 119 and 219 overlap each other, as will be obvious particularly from Fig. 1 and Fig. 6. The hanger members 119 all are in a row in a direction transversely of the fan end portion, as is also true of the hanger members 219.

The refractory hanger members 319 are mounted on the metallic hanger members 26 by engagement of the slots 61 in said hanger members 319, with the outwardly directed flanges 48 of adjacent metallic hanger members 26 being thus mounted between adjacent hanger members 26 in substantially the same manner as the refractory hanger members 119, and thus are located in positions in the row in which the same lie substantially opposite the positions of the refractory hanger members 119 in the row in which these lie and are in staggered relation and lie between the refractory hanger members 219, with the outer corner portions of the hanger members 219 and 319 overlapping in the manner shown in Fig. 1. As the flanges 48 extend at an angle of 30 to the flanges 49, the refractory hanger members 319 will extend at an angle of 30 to the refractory hanger members 219 and at an angle of 60 to the refractory hanger members 119.

The lower outer corners of the refractory hanger members 319 are adapted to engage an upper corner of each refractory hanger member 119 as shown in Fig. 1, but the weight of the hanger members is principally supported by the flanges 48 with the upper end portions of the flanges 48 in engagement with the connecting walls 66 at the upper ends of the grooves 61.

The recesses 63 and 64 in each of the refractory hanger members provide T-headed portions on the inner ends thereof, providing rib or flange portions 69 on opposite sides of said hanger members that serve to support the wall forming refractories therefrom. The wall forming refractories 20 are suspended from the refractory hanger members 19, having recesses that receive the flanges 69. Also one of the said refractories 20 is suspended from each of the refractory hanger members: 119 in this manner, the flanges 69 opposite the recesses 64 being seated in the recesses 70 in said wall forming members 20, as will be obvious from Figs. 6, 7 and 8. It will be also obvious from Figs. 6, 7 and 8 that the wall forming refractories 20 are recessed as at 71 to accommodate the connecting thickened wall portions between the recesses 63 and 64. The refractory wall forming members 20 are provided with alternating interfitting ribs and grooves, as shown in Hosbein and Ellman Patent No. 2,387,663, referred to above.

Also mounted on the refractory hanger members 119 are the wall forming refractory members or blocks 72, which are provided with recesses 73, similar to the recesses 70, and with the recesses 74, similar to the recesses 71, said recesses 74 together with the recesses 71 accommodating the connecting portions 65 and the recesses 73 each receiving a rib portion or flange portion 69 on one of said refractory hanger members 119 to thus suspend said wall forming blocks 72 from said refractory hanger members 119. It will be noted that the wall portion of both the block 20 and the block 72 above the recesses and 73, respectively, is inwardly offset, this wall portion being indicated by the numeral 75 on the block 20 and by the numeral 76 on the block 72, this being necessary to accommodate the connecting wall portion on each of the refractory hanger members between the opposite recesses 63 and opposite recesses 64.

It will also be noted that the refractory blocks or wall forming members 72 have the opposite faces 77 and 78 diverging from each other so that said refractory wall forming members 72 gradually widen inwardly toward the inner face or heat exposed face 81 of the blocks. Said refractory wall forming blocks 72 are also preferably provided with interengaging grooves and ribs on the side faces 79 and 80 thereof that adjoin each other in a similar manner to the interengaging ribs and grooves on the members 20. The face 77 of each of said blocks extends perpendicularly to the inner face 81 thereof, while the face 78 thereof extends at an oblique angle thereto, as will be obvious from Fig. 1. Each of said refractory wall forming blocks is also provided with a recess 82 therein that gradually tapers toward the outer end wall 83 of the block, and which is provided to accommodate the refractory hanger members of the next higher row, as will be described below, said recesses 82 being of such a size as to accommodate the relatively narrow wall portions between opposite recesses 63 and opposite recesses 64 in the faces of said hanger blocks.

A plurality of the refractory hanger members 119 is shown in position in Fig. 5 and one of the wall forming refractories 20 is shown in position thereon. In Fig. 6 a plurality of the refractories 72 are also shown in position on the refractory hanger members 119 and a pair of refractory hanger members 219 are shown in position, With some of the wall forming blocks 72 in position on said hanger members 219. Only certain of the lower blocks 72 are shown in position on the hanger members 219 so that the structure and arrangement of the refractory hanger members is more clearly revealed, it

that there is an upper: and

being obvious from; Fig. 1

72 associated, with 21,-. lower, pair of wall. forming blocks the: refractory, hanger members 219... noted. upon reference. to Fig. 1 thatv the, perpendicular sides of the wall forming blocks associated with there fractory hanger members 219 are in adjacency, while the obliquely extending sides 78. thereof are in engagementwith the corresponding obliquely extending sides 78 of the wall forming blocks carried by the refractory hanger membersv 119.- Also due to. the fact that the hanger members 119 are associated, in the same manner with the blocks 72 as are the refractory hanger members 219 with said blocks. of their respective rows, the blocks 72.associated with the refractory hanger members 219,. are staggeredrelative to the, blocks 72, associated with the refractory hanger members 119 or break joints therewith, aswillbe obvious from Figs. 6 and 7. When the. refractory hanger members 219 are put in position itwill. be obvious that the wall portions that separate the recesses: 64 opposite each other lie in, the recesses 82 in thewall forming blocks 72 that are mounted on the refractory hanger members 119;

The refractory wall forming blocks 72 that are mounted on the refractory hanger members 319 are mounted thereon in the same manner as are the refractory blocks 72 on the refractory hanger members 219 and are thus staggered or break joints with the wall forming blocks 72.mounted. on the refractory hanger members 219, the perpendicular faces of the refractory wall; forming blocks '72. lying adjacent each other and the obliquely or inclined faces 78- thereof lying adjacentand in engagement with the inclined or obliquely extending faces 78 of the uppermost, course of blocks 72 mountedon the refractory hanger members 219. Certain ofthe Wall forming blocks 72 are shown in position on the refractory hanger members 319 in Fig. 7. a

They refractory hanger members 419 have a lower course. of wall forming blocks 72 mounted thereon in the same manner as the lower courses of wall forming blocks 72. are mounted on the refractory hanger members 219 and 31?, but the refractory hanger members 419 are reversed in position from the refractory hanger members 319, in thatinstead of the long slots 61 being lowermost, these are uppermost. Accordingly the recesses 64 and 63 are. reversedin position from those in the refractory hanger members 219 and 319 and the projections. or flanges 69 opposite the recesses 64 therein engage in. the recesses 73 in, the wall forming blocks 72 that form the lower tier of blocks mounted on said refractory hanger members, 4-19. However, the refractory wall forming blocks 72 are mounted with their, lower inclined faces 73 inengagementwith the inclined faces 78 of theupper tieror wall forming blocks on the refr'actoryv hanger members 31h and the perpendicular faces 77' thereof upwardly. Refractory wall forming blocks 20 are mountedon the refractory hanger members 419 on top ofthewallforming members 72, and it will be noted from Fig. 8' that said wall forming blocks 20 are slightly offset or staggered relativeto the wall fo-rrningblocks 72 so as to break, joints therewithand that the wall forming blocks '72. mounted on the refractory hanger members 41are staggered relative to and break joints with the blocks 72 mounted on the refractory hanger members 319. It will also be notedv that the blocks 72 mounted on the refractory hanger members 319. are in alignment with the blocks 72hr" the corresponding refractory hanger membcrs119 and that the blocks 72 on the refractory hanger members 419 are similarly related to theblocka 72 on the refractory hanger members 219.

' Refractory wall forming members 84 are provided for filling in between the Wall forming members 25 mounted on the bracket members Maud the refractory wall formingmembers 2%,.these being supported on the said wall forming members 21). Also refractory blocks 85 are provided to fill the space between the refractory hanger It will, also. be.

members, 419: anda the. refractory brackets, 24.: and, prefer- -ably,, a. suitable. refractory cement filling, material. 86. is

provided betweenthe verticalwall portion and said. re.- fractor-ies. 8:4 and 85..

It will be obvious that a fan, end construction is pro.- vided that base generally convexly curved or rounding wall connecting-the horizontal top wall and the vertical. wall of the furnace. structure shown herein; While the exposed face of the fan end construction is not truly arcuateor smoothly curved, but is made upof a plurality of flat faces that extend at relatively large angles to each other, the. surfacethus approaches a convexly curved. or rounding surface, and. the said rounding surface'is offa much smaller radius than would be possible to attain-if the refractory. hanger members were not arranged in staggered. relation to each other, as, if. such, staggered arrangement were not provided, it. would be necessary to.

have the. hanger mmehersv corresponding to the hanger membersr219 in, corner to corner engagement with the refractory hanger, members 119, or. inother. words, these would have to assume a position substantially that of' the refractory hanger members 319, except that these would have a smaller angular relationship to each other than do the refractory hanger members 1-19 and 319. Oh-

viously this would throw the wall forming blocks 72' much. further away from the metallic framework than is the case in myimproved fan end construction and would thus produce a fan end construction of a much larger radius of curvature than that shown herein. As a result, fewer refractories have to be used both for hanger members and for wall forming members, and a more compact structure results.

What I" claim is:

1. A connecting refractory wall structure providing a.

rounding corner. between a pair of relatively angularly disposed" refractory furnace walls, comprising rectangular refractory hanger members, means for mounting said' hanger members in overlapped, staggered relation and wall formingrefract'ories supported from said hanger members. 2. A connecting refractory wall structure providing a rounding corner between a pair of relatively angularly' disposed refractory furnace walls, comprising horizontal rows of horizontally spaced refractory hanger members, means for mounting adjacent hanger members in overlapped, staggered relation andwall forming refractories supported.fromsaidhangermembers.

3. A connecting refractory'wall structure providing'ai rounding corner" between a pair of relatively angularly' disposed refractory-furnacewalls, comprising duplicate rectangular refractory hanger members, metallic hanger members having means for mounting said refractory hanger members in overlapped, staggered relation andwall forming refractories supported from said refractory hanger members.

4. A fan end construction for furnaces comprisinghorizontal-rows of'rectangular; horizontally spaced refractory hanger members, means-for mounting each of said'rows with the members thereof-extending at" an oblique angle to the members of an adjacent row and in overlapped, staggered relation thereto,- and inwardly wideningwall forming refractories supported from the horizontallyadjacent hanger membersof each of said rows.

5. In a fan end construction for furnaces, a metallic framework, metallic hanger members having body portions provided with means for mounting the sameon said framework and having a plurality of inwardly and out-; wardly extending rectilinear flanges thereon extending at oblique angles to each other, rectangular refractory hangermembersmounted on said flanges in horizontally extending rows, the hanger members in each row being horizontally spaced, and inwardly widening wall forming refractories supported on said refractory hanger members.

6. In a fanend construction for furnaces, a metallic framework, metallic hanger members having body portions providedwith means formounting the same on said framework, said body portions having spaced walls thereon provided with pairs of outwardly directed flanges thereon, the flanges of one pair extending at an oblique angle to the flanges of the other pair, and provided with a pair of inwardly directed flanges extending perpendicularly to the bisector of the angle between said pairs of outwardly directed flanges, refractory hanger members mounted on said flanges in horizontally extending rows, and wall forming refractories supported on said refractory hanger members.

7. A metallic bracket for fan end constructions for furnaces having a body portion, paired recessed mounting ears therein, the ears of each pair projecting laterally from opposed sides of said body portion in transverse alignment, paired spacing ears on said body portion cooperating with said mounting ears, spaced walls on said body portion extending perpendicularly to said ears, said walls having pairs of outwardly directed flanges thereon, the flanges of one pair extending at an oblique angle to the flanges of the other pair, and having a pair of inwardly directed flanges extending perpendicularly to the bisector of the angle between said pairs of outwardly directed flanges, and upstanding bracket mounting means on the top end of said body portion.

References Cited in the file of this patent UNITED STATES PATENTS 1,626,982 Strachota May 3, 1927 1,642,254 Liptak Sept. 13, 1927 1,666,284 Gilchrist Apr, 17, 1928 1,806,809 Lanyon May 26, 1931 1,807,408 Hosbein May 26, 1931 1,978,077 Doyle Oct. 23, 1934 2,011,701 Anderson Aug. 20, 1935 FOREIGN PATENTS 477,131 Great Britain Dec. 22, 1937

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