US2303815A - Furnace arch nose construction - Google Patents

Description

1942- H. w. BEECHER 4 2,303,815

FURNACE ARCH N OSE CONSTRUCTION v Filed Nov. 20, 1959 3 Sheets-Sheet 1 INVENTOR ///VRV 14 555mm? BY ATTORNEY 1, 1942.v H. w. BEECHE R I FURNACE ARCH NOSE CONSTRUCTION Fileduovfzo, 1939 a Sheets-Sheet 2 INVENTOR HENRY W 5550/55" 7 ATTORNEY Dec. 1, 1942.

FURNACE ARCH NOSE CONSTRUCTION Filed Nov. 20, 1939 s Sheets-Sheet s INVENTOR HENRY W5CHR ATTORNEY H. w. BEECHER 15 7 Patented Dec. 1, 1942 UNITE sire FURNACE ARCH NOSE CONSTRUCTION Application November 20', 1939, Serial No. 305,290

9 Claims.

This invention relates to improvements in furnaces, and it has reference more particularly to improvements in high temperature furnaces of those kinds wherein a structural steel frame work is lined with refractory tile and brick; the present invention having reference in particu lar to those portions known as the arch nose and curtain wall.

It is the principal object of this invention to provide refractories of novel designs and relationships, and having novel means for their suspension, whereby to improve upon present-day arch nose and curtain wall structures, especially with reference to facility of construction, effectiveness, durability, cost and provision for the economical and ready replacement of perishable parts for repair.

More specifically stated, the objects of the present invention reside in the details of construction of the various tile or refractories ernbodied by the invention, in their functional, or assembled relationship and the details of construction and application of the tile suspending means.

In accomplishing these and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein Fig. l is a vertical, cross sectional view through the curtain Wall and arch nose of 'a furnace, showing tile and their suspending means embodied by the present invention.

Fig. 2 is a plan view of tile as assembled in the two nose courses.

Fig. 3 is a detail showing one mode of applying a tile hanger bracket to the flange of a supporting beam.

Fig. 4 is a plan view of the hanger bracket, shown in Fig. 3.

Figs. 5 and 6 are perspective views respec tively of the two forms of refractories used alternately in the outer course of the arch nose.

Figs. 7 and 8 are views, in perspective, of the two forms of refractories used alternately in the inner course of arch nose.

Fig. 9 is a perspective View of a tile hanger set.

Fig. 10 is a cross sectional view of a part of a furnace showing a furnace nose of another form of construction.

In the present drawings, I have shown only that portion of a furnace which is affected by the present tile structures, and it is to be understood that the furnace designs might be varied mateper, inner corner, is a suspending lug 39.

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rially and still utilize tile in accordance with this invention. Therefore, it is not intended that the present refractories be limited in use to any particular design of furnace.

In Fig. 1 there is shown a portion of a boiler wall l0 supported upon a horizontal plate H carried by a pair of parallel I-beams l2 and I2. Also, an I-beam I3 is shown as located directly below the beam i2, and there is a cross beam l4 located somewhat rearward of the beam l2. The two beams 13 and I 4 support the opposite ends, respectively, of a series of inclined beams [5 from which a portion of the furnace arch I6 is suspended. The construction, relationship and means of support for the refractories of the flat and inclined portions of the arch have been described in detail in my copending application, Serial No. 287,276, filed on July 29, 1939, and therefore will not be described herein beyond stating that it is composed of a succession of cross courses of paired tile l1 and H, with each pair suspended by a hanger l8, which hangers, in turn, are attached to I-beams l9 fixed transversely to the undersides of the supporting beams l5.

The curtain wall lining comprises vertically spaced horizontal rows of tile 20 supported from the beams l2 and It, by means presently described, and on these rows of tile are courses of filler brick, designated by numeral 2|.

The arch nose, which is one of the parts featured by this application, comprises two' courses of tile which, for purpose of easier explanation, will be referred to as the outer and the inner course respectively; the inner course being that which is adjacent and from which the arch It extends; the outer course is at the upturnof the nose, and upon which filler brick of the curtain wall lining are supported.

First, describing the tile comprising the outer course of the nose: This course is composed of tile of the two different shapes shown respectively in Figs. 5 and 6, and which are alternately disposed in the course. The tileof Fig. 6, designated in its entirety by reference numeral 24, comprises a body portion 25 formed with a flat, horizontal upper end surface 26, an arcuate nose surface 21, which extends through an arc of as indicated in Fig. l, and a vertical end surface 28. Integrally formed with the body portion of this tile, at which may be designated as the up- This lug is narrower in width than the body portion, and is symmetrically located thereon so that its opposite side surfaces are inset equal distances from the corresponding side surfaces of the body and thus there is provided upwardly and inwardly facing arcuate shoulders 32 at opposite sides of the lug.

Formed in the opposite side surfaces of the suspending lug 30 are slightly tapered, circular sockets 33, and, in this instance, these sockets are coaxial of the line about which the nose surface 21 and shoulders 32 are curved. The lug 30 extends somewhat above the upper end surface 26 of the body portion and has a flat, horizontal top surface 34, and a vertical, outwardly facing abutment surface 35. Also, it extends inwardly somewhat beyond the vertical surface 28 forming an overhanging shoulder 36 and a vertical inner end surface 311.

The tile of Fig. 5, designated by reference numeral 40, comprises a body portion 4| of the same shape and size as the body portion of tile 24 except narrower in thickness, with a horizontal upper end surface 42, and a vertical inner end surface 43, and an arcuately curved nose surface 44. When the tile 40 are assembled in a course, these surfaces form continuations of the corre sponding surfaces of tile 24.

Each tile 40 also is formed at its inner, upper corner with an integral lug 45 having opposite side portions extending beyond the side surfaces of the body portion and forming flanges adapted to supportingly rest upon the shoulders 32 of adjacent tile 24. The thickness through this lug 45 in a radial direction with reference to the curved nose surface, is such as not to overlap the sockets 30 or to interfere with the application of suspending brackets to the sockets in the lugs of the tile 24.

When the tile 24 and 40 are arranged in a course, the horizontal upper end surfaces of body portions and lugs provide a foundation or base for the building of a. wall of filler brick thereon whereby to close the space up to the lower course of tile in the lining of the curtain wall. It will be noted by reference to Fig. 1

that the filler brick are laid up in stretcher courses to form a wall of double brick thickness wherein all joints are broken by reason of the backing courses being laid up on the top surfaces of the lugs of the tiles while the facing bricks are laid up on the flat, top surfaces of the tile. the thickness of the brick thus to cause the breaking of joints between bricks of the backing and facing courses.

The inner nose course comprises tiles of two different shapes alternating in the course. tile of one of these shapes. designated by reference numeral 50, as shown in Fig. '7, comp-rises a body portion formed with a vertical end surface 52, an arcuate bottom surface 53 and a flat, inclined inner end surface 54. Integral with the body is a suspending lug 55, narrower in width than the body and symmetrically disposed between its opposite side surfaces to provide upwardly facing shoulders 56 at oppositelel with the corresponding inner end surface of the body portion.

Also, the lug has slightly tapered, circular sockets 59 in its opposite side surfaces adapted to receive suspending hangers presently to be described.

The tile 60, which alternate in the course These surfaces are vertically offset one-half The with the tile 50, as shown in Fig. 8, comprises a body portion SI of the same shape and size as the body portion of tile 50 except it is of lesser thickness. This body is cast with an integral supporting lug 62 on its upper edge that extends beyond the side surfaces of the body for support upon the shoulders 56 of the upper surfaces of adjacent tile, and it is of limited depth so as not to interfere with the application of hangers to the sockets 59.

By reference to Fig. 1, it will be observed that the inner surfaces of the tile constituting the outer nose course, and the outer surfaces of tile of the inner course, are in close interfitting relationship, with the vertical joint broken by reason of the inwardly offset relationship of the suspendinglugs 31 and 45. Also, it is noted that the outer surface of tile in the inner course fits the end course of tile in the arch in a close joint which is closed by the overlap of the'lugs and 62.

It will further be noted, by reference to Fig. 2, that the suspending lugs 31 and 45 of tile of the inner and outer courses are in staggered, offset relationship, so as to leave the sockets therein in the clear for the application or removal of the hangers.

Each of the tiles 24 and is suspended from the frame structure by a hanger comprising a pair of hanger brackets 65,65, as illustrated best in Fig. 9. Each bracket comprises a straight shank 65' formed at its lower end with an .inturned toe 66 for seating in a socket of a tile lug and formed at its upper end with a horizontal arm 6'! having a downturned leg 68 at its end. In their assembled relationship, the toes 66 are inserted in the sockets in opposite sides of a tile suspending lug and the downturned legs 68 are brought together in registration. Then a circular loop 1!] on the lower end of a hanger rod H is applied over the legs 68 thereby to hold the toes 66 against displacement from their sockets. The hanger rod II is threaded at its upper end and has a nut 12 thereon. To attach the rods to the frame structure, the nuts are then applied to hanger brackets 14 that are applied to selected beams of the frame structure. In Fig. 1, I have shown "the bracket as applied to beam l3.

As noted in Figs. 3 and 4, each bracket 14 comprises a flat body portion 14a formed at one end with an upwardly and inwardly turned lip 15 for overlapping the beam flange l3. A flange 15 extends inwardly from the body and this has nut sockets 11 formed'in its top face and slots 18 opening from the sockets to the edge of the flange for receiving the rods to seat the nuts. Thus it is not necessary to remove the nuts for detachment of the rods. After a nut has been seated, it may be tightened on the rod to draw the tile to proper position.

The structure illustrated in Fig. 10 has a flat arch 1611 without any inclined portion and therefore the inner course of nose tile, as used in the structure of Fig. 1, has been eliminated. In this arrangement the tile of the arch abut the vertical surfaces of the tile of the outer nose course in a broken joint by reason of the overlap of the parts 30 and 45 with the top surfaces of the tile of the outer arch course.

The tile hanger brackets as used in this structure of Fig. 10 are applied to the bottom flanges of I-beam IS in the same manner as previously described. except reversed in direction, and each bracket has a depending flange 8| that is formed with a socket to receive the depending legs 68 of the hanger brackets the same as they are received in the loop of the suspending rod in Fig. 9.

With reference to the curtain wall, as seen in Figs. 1 and 10, the courses of tile 2!], which were described in detail in my copending application Ser. No. 302,863, filed Nov. 4, 1939, are supported at their lower, inside margins 1n seats provided by angle iron beams 90 supported by brackets 9! fixed to beams l2 and I3, and the tie rods 92 have downturned opposite end hooks 93 and 94 seated, respectively, in cross channels 95 in the upper end surfaces of the tile and over the vertical flanges of angle bars 95 attached to the beams 12 and I3. The tile 20 have vertically offset end surfaces on which the bricks 2| are laid so as to break joints between inner and outer layers. Each course of tile 20 and the filler brick laid thereon, is supported independently of the next higher course, with expansion joints to prevent accumulation of loading.

Nose tile formed and assembled in the manner described provide a structure that is relatively inexpensive to construct, which has long life;

which is easy to repair, and which is very effective and serviceable in use.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent is 1. In a furnace structure a nose supporting beam and a furnace nose suspended therefrom, said nose comprising an inner course of tile and an outer course of tile in juxtaposition therewith, each alternate tile in each course being formed with an integral suspending lug narrower than the tile body, at its upper end, and having an upwardly facing shoulder at each side of the lug; the other tile of each course each having a supporting lug at its upper end of lesser height than the suspending lug overlapping the adjacent tile in the same course, and resting upon the shoulders thereof, said suspending lugs of one course being staggered relative to those of beam, said outer course of tile forming a horizontal shelf for the building thereon of a curtain wall section, said inner course forming an abutment surface for joining with an arch course; the lugs on said tile being extended beyond said shelf and abutment surface to break joints with the curtain wall section, and arch course.

2. In a furnace nose structure, the combination with a suspending rod formed with a horizontal loop and a nose tile having an integral suspending lug at its upper end formed with outwardly opening sockets in opposite sides thereof, a pair of hanger brackets disposed at opposite sides of the lug, and having inturned feet at their lower ends applied to said sockets and having downturned portions at their upper ends removably applied to the loop of the suspending rod for the rigid association of the brackets whereby to retain the inturned feet functionally applied to the sockets.

3. A nose tile formed with an arcuate nose surface and having a fiat, stepped upper end surface, and a flat vertical lower end surface adapted to abut an arch course of tile, and formed with an integral suspending lug at its upper inside iii corner, of narrower'width than the tile and providing upwardly facing shoulders on the tile at wardly beyond the vertical surface and having sockets in its opposite sides for reception of hangers.

4. The combination with a tile having a suspending portion with sockets in opposite sides of a tile support comprising a pair of hanger brackets disposed at opposite sides of said socketed portion and having inturned feet at their lower ends seated in said sockets, and having their upper end portions terminating in inwardly turned arms with downturned legs, and a suspending rod formed with a horizontal loop containing said legs, removable therein, and holding the hangers in rigid assembly.

5. The combination with a tile having a suspending lug formed with alined sockets in opposite sides, of a support comprising a pair of hanger brackets, disposed at opposite sides of the lug, and formed with inturned feet at their lower end pivotally fitted in said sockets and having horizontal arms at their upper ends extended together and formed with downturned legs at their ends each of semi-cylindrical form, and disposed in side by side relation and a suspending rod formed with a circular horizontal loop at its end removably containing said legs therein to suspend the tile and whereby said bars are retained against spreading.

6. A tile hanger comprising a hanger rod formed ina loop at its lower end, and having a nut threaded onto its other end, a pair of hanger bars in parallel, spaced relationship, with inturned feet at their lower ends for seating in sockets of a tile, and having arms at their upper ends extended together and formed with downturned legs removably seated in the said hanger rod loop, and a bracket adapted to be removably applied to a beam flange, and having a seat and a lateral slot opening to the seat, for receiving said rod to dispose the nut on said seat.

'7. A nose tile having an arcuate nose surface and formed at its upper end with a flat horizontal surface and at its lower end with a flat upright surface and a suspending lug, narrower than the tile, extending from said tile opposite the nose surface and providing shoulders at opposite sides thereof; said suspending lug having a fiat surface parallel With and offset above the upper end surface of the tile and a flat inner surface parallel with the lower end surface of the tile and offset inwardly thereof.

8. In a furnace arch nose, a supporting beam and a nose forming course of tile suspended from the said beam and comprising tile of two different shapes alternating in the course; tile of one shape each having a suspending lug integral therewith at its upper end narrower than the tile and formed with sockets in its opposite sides and providing upwardly facing shoulders on the tile at opposite sides of the lug, tile of the other shape each having a supporting lug at its upper end projecting beyond its sides and resting upon said shoulders of the next adjacent tile, and hangers applied to said beam and to said lug sockets to suspend the course, said tile as alternately arranged in the course having horizontal upper end surfaces in alinement at the same level for the building of a brick wall thereon and having the said suspending lugs and the supporting lugs formed with horizontal top surfaces wardly facing shoulders at opposite sides of the lug; tile of the other shape each having a supporting lug at its upper end projecting beyond its sides and resting upon the shoulders of the next adjacent tile, and hangers applied to said beam and to said lug sockets to suspend the course; all of the tile having upper end surfaces in alinement at the same level for the laying of a curtain wall section thereon and having upright inner end surfaces inalinement for abutting an arch course, and having arcuate nose surfaces; said suspending and supporting lugs projecting upwardly beyond the upper end surfaces and inwardly beyond the upper ends of the upright surfaces, respectively, to overlap the joints with the curtain wall and arch forming members disposed against said surfaces.

HENRY W. BEECHER.

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