US1623860A - benson - Google Patents

Description

1,623,860 Aprll 5, 1927. D A BENSON FURNACE ROOF STRUCTURE Filed March 2e, 1926 2 sheets-sheet 1 l L L o 1 Aprll 5, 927 D. A. BENSON FURNACE ROOF STRUCTURE Fileduarch as, 192e 2 sheets-sheet 2 Patented Apr. p 5, 1927.

UNITED saiEs PATEn'r EEicE.,

DAVISSON BENSON, OF FROSTBUG, MRYLAND, ASSIGNOR TG STANDARB ARCH COMPANY, O E FROSTBURG, MARYLAND, A CORPORATIN 0F MARYLAND.

FURNACE-ROOF STRUCTURE.

Application tiled March 26, 1926. Serial No. 97,719.

My invention relates to vfurnace rooil structures and is primarily designed to all ford` a simple, reliable and eiiicient construction which.' may V be erected and repaired with a` minimum expenditure ot labor. p

A more speciiic object of the invention is to provide a combination and arrange ment of parts permitting` metallic elements of simple :torni to be employed. Another object of the invention is to `so torni and relate the bricks to their metallic support and to each other that they may be readily brought into assembled relation and easily removed in the event replacements become necessary. A still further object ofthe invention is to form and relate the bricks in a manner enablingthem to adjust themselves When assembled and to eiliciently distribute the strains imposed upon them.

Other features of the invention residing,- in advantageous relations and forms or parts will hereinafter appear and be pointed out in the claims.

In the drawings illustratingpreferred embodiments ot the invention Figure l is a vertical transverse section. of the upper portion or a iurnace involving a roof constructed in accordance with the invention.

Figure 2 is detail sectional view, taken on the line 2--2, Figure l.

Figure 3 is a detail view showing a por tion of one oi" the carriers, the Vbricks associated therewith and the clip or cover Yfor preventing' removal ot the bric 7e from the carrier.

Figure l is a. detail sectional view on the line 4 4, Figure y Figure 5 is a view correspondinp,- to Fig;I- ure l but illustrating a modiiied form oi lthe invention.

Figure l6 is. a transverse sectional view ot a furnace illustratingv a iorm o'il curved arch furnace root embodying' the invention.

vin the drawings l'-1 are the side walls of the furnace and 242 are buckstays. 'lhe buckstays on opposite sides of the :furnace are connected in the usual or any preferred manner by tie rods 3. Extending upward ly ilirom the side Walls ot the iurnace and `rigidly secured in place, as by being riveted to adjacent buckstays 2, are oppositely disposed columns et vvhose upper ends support 'corresponding transversely extending `may conveniently be in the form ot Lbea-ms.

lhe upright columns i are preferably channels and the overhead beams inay be rigidly secured thereto through angle irons or brackets 6.

Suspended from each oi' lthe overhead beams 5 by means of a series oi' hanger devices 7 is a rigid brick supporting member 8 `Which is open on its underside. The hanger devices 7, as more particularly shown inFigure 2, may advantageously consist of angular or hook like members 9 which overlap the lovver flanges of the over` head beam 5 and are connected by a bolt l0 to a tlneaded rod ll. rlhis threaded rod cooperates with a turnbuckle l2 having threaded engagement with a rod 13 iorming the lower element of the hanger. Vlhcre, as is preferred, the brick supporting inembers 8 are in the torni oit downwardlyopening slotted cylindrical tubes, the material slotted trom the tube may be punched and utilized as a bearing strip iid for reinforcing the tube at its point oi? attaclnnent to the hangers; Y

The rigid brick carriers 8 entend continuously from one side ot the furnace to the other, preferably being integral and open ended and each termed from a hollow cylindrical metallic tube slotted on its lower side so as to provide downwardly converging Walls or portions l5 'for supporting, bricks i6. Each ci thebricks 1 6 is fashioned at its upper end with ahead 17 adapted to be received within the "tube 8, the head being preferably :formed with lateral cylindrical faces correspondimito the curvature o'i' the inner lWall ot the tube. By this means, will be readily appreciated, the bricks i6 may adjust themselves angularly `in acomunicaIation` to the strains imposed uponthem. 'ilhe upper endsot the heads i7 oi the bricks 1.6 are suitably recessed to atiord, as at i8, clearance lfor the lower ends oi'i the hanger rods i3 and rein'lprcin` `members ifi.

ill-ach of the downwardly openingl brick carriers 8 supports a single row ot bricks i6. ln order to permit the removal and rei placement ot independent bricks 16 Without the necessity oi disturbing all the bricks in a row, each of the hollow brick carriers 8 is Vcut away or recessed intermediate its ends to form a lateral opening 19 which communicates with the slot in the bottom of the carrier. A plurality ofthe openings 19 is preferably employed, their spacing being governed generally by the width .of the furnace and the thickness of the bricks employed. To support the bricks 16 positioned in overlapping relation to the openings 19, the brick carrier 8 preferably has mounted thereon a series of clips 2O for respectively covering the openings 19. A portion of each of these clips is provided with an inwardly extending projection or liner 21 y(see Figure 4) which is adapted to it into the correspondingly shaped opening 19 so as to make the inner wall of the brick support ing member 8. continuous. As the openings 19 and liners 21 of the` clips are preferably tapered downwardly they cooperate to prevent the clips from rotating toward the body of brick thus insuring proper clear` allee.` ldlhen a brick 16 is to be removed after the furnace hasbeen erected the clip 20 which is nearest thereto is removed from the tubular member 81 as will be readily understood.

Intervening between each pair of adjacent rows of bricks and supported by the latter is an intermediate row of bricks 22. To facilitate grinding of the bricks so as to insure their proper size and the provision of suitable bearing surfaces, as well as to enable the bricks 22 to accommodate themselves to minor variations in the sizes and vertical positions of .the bricks 16, the bricks 16 are preferably formed with outwardly and downwardly inclined lateral faces 23 upon which correspondingly inclined downwardly converging faces or shoulders 24 Vof the bricks 22 seat. In assembling the roof structure the intermediate rows of bricks are placed in position after the rows of bricks 16 have been brought into assembled relation with the brick carriers S. Any brick 22 may be immediately removed and replaced if a new brick is required to be substituted therefor7 but it will be observed that before a brick 16 can be disengaged from its carrier 8 it is necessary to remove one or more of the bricks 22 which are adjacent the opening 19 in the carrier through which the brick 16 is to be withdrawn. The vintermediate bricks 22 therefore prevent removalr of the bricks 16 even after the appropriate cover 21 for the opening 19 has been removed.

To limit undue shifting of the bricks 22 of the intermediate rows metallic straps 25 which are supported by the side walls of thefurn-ace and extend across the ends of the row of bricks may be employed. A gas tight closure at the end of the arch may be provided by the use of the well known sand spacers are burned out7 thus allowing `for expansion of the bricks.

In the construction shown ni li`igure l' the tubular carriers 2T by which the liriche-i 16 are suspended are formed at their outer ends with down turned curved portions 2.8 which terminate at the top of tl i side walls 1 of the furnace. The space between the outermost bricks 16 and these curved poi'- tions 28 of the brick carriers is occupied by skew back bricks 29 which project into the tube 27 in a manner similar to the bricks 16. Except for these diil'erences the construction shown in Figure o is identical with that illustrated iii Figures l to 4. inclusive and heretofore described and accordingly similar parts have been idci'ititicd with corresponding reference numerals.

Figure 6 illustrates a forni of furnace roof construction showing the applicability of my invention to a curved arch roof. ln this instance the tubular members S by which the bricks 16 are carried extend loiigitudinally of the lfurnace and are adjusted vertically by means of the turn buckle hangers 'i' so as to assume. proper elevations to give the desired curvature to the arch.

The invention provides an eiiicient roof which may be readily erected and maintained and although preferred ei'iibodiiiients have been described With particularity it is to be understood that changes in forni and in the proportion of parts arc contemplated within the spirit of the invention and the scope of the claims.

I claim:

1. A furnace arch construction involving an integral slotted tubular member adapted to support a plurality of bricks having heads received by said slotted tube? said member being provided with a cut out por tion .to permit the removal of bricks therefrom at a point intermediate its ends.

2. A furnace arch construction involving a brick supporting member adapted to einbrace and thereby support a plurality of bricks, said member being provided with a` cut out portion intcriiiediate its ends to permit the removal of bricks theicfroiii. and means for supporting' bricks positioned in said cut out portion involving a clip adapted to embrace said .supporting member.

3. A furnace arch construction involving a plurality of rigid brick supporting meinbers extending continuously from one wall of the furnace to the opposite wall thereof, spaced rows of bricks supported by said members, and row-s of bricks intermediate said supported rows and carried by the supported rows, said rigid brick supporting members heilig fashioned to permitt'he removal of bricks therefrom intermediate its ends only after the removal of bricks from said intermediate rows.

4. A furnace arch construction involving a plurality of integral brick supporting members, spaced rows of bricks supported by said members, rows of bricks intermediate said supported rows and carried by said supported rows, each of said brick supporting members being provided with a cut out portion intermediate its ends to permit removal of bricks therefrom only after at least one of the bricks in the intermediate row adjacent said cut out portion has been removed.

5. A hollow brick supporting member for a furnace roof provided with a slot extencb ing longitudinally thereof, said member having'converging brick engaging shoulders enabling the bricks to adjust themselves in accordance with the strain imposed thereon, one of said shoulders having a cut out portion to permit the removal of bricks from said member at a point intermediate its ends.

6. A furnacearch construction involving a row of headed bricks, and a hollow integral member adapted to support a plurality of the bricks in the row, said member being provided with a slot extending longitudinally thereof, the portions of the member adjacent the slot being inclined to provide brick engaging faces, at least one of said faces heilig cut away to permit the removal of bricks from the member at a point inter mediate its ends.

7. A hollow integral brick supporting member adapted to support a plurality of bricks, a longitudinally extending slot therein, the walls of said member adjacent said slot converging downwardly towards each other to form brick supporting shoulders, and a portion of at least one of the walls adjacent the slot being cut away to permit the removal of bricks from the supporting member at a point intermediate the ends thereof.

8. A furnace arch construction involving a plurality of rows of bricks, longitudinally slotted hollow supporting members for receiving the upper ends of the bricks, the walls of each of said members adjacent the slot converging downwardly towards each other to form brick supporting shoulders and a portion of at least one of the walls adjacent the slot being formed with a recess permitting the removal of bricks from the supporting member at a point intermediate its ends, and means respectively overlapping said recess for normally preventing withdrawal of said bricks.

9. A furnace arch construction involving a rigid hollow cylindrical brick supporting member, means for supporting said member from above, and a plurality of bricks eX- tending into said member and carried there by, said supporting member extending continuously from one wall of the furnace to the opposite wall thereof and provided with means permitting the removal of bricks therefrom at a point intermediate its ends.

10. A furnace arch construction involving an integral hollow cylindrical brick supporting member having a longitudinally eXtend ing slot, a plurality of bricks extending into said member and supported thereby, said member being provided with a portion to permit the removal of bricks therefrom at a point intermediate its ends.

ll. A furnace arch construction involving a plurality of integral tubular slotted brick supporting members, a plurality of bricks adapted to be engaged by each of the supporting members and supported thereby, each of said members having a cut out portion permitting the removal of bricks intermediate its ends, and means for supporting the bricks in each of the cut out portions.

12. A furnace arch construction involving a brick supporting member adapted to embrace and thereby support a plurality of headed bricks, said member being provided with a cut o-ut portion permitting the removal of bricks therefrom at a point intermediate its ends, and a member adapted to embrace the brick supporting member and engage the bricks positioned in said cut out portion.

13. A refractory brick, having at its upper end a headed portion provided with downwardly converging bearing faces, oppositely disposed substantially parallel faces at its lower end, and intermediate faces converging upwardly toward the head and intersecting the parallel faces.

la. A refractory brick having at its upper end a headed portion provided with suhstantially cylindricz lly curved bearing faces, oppositely disposed substantially parallel faces adjacent the opposite end thereof, and interinediate faces angularly disposed with respect to the said parallel faces.

In testimony whereof lf affix my signature.

DAVISSON A. BENSON.

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