US2524721A - Suspension arch, including ceramic suspension tile - Google Patents

Description

Oct. 3, 1950 H, wl WEBER ErAL 2,524,721

SUSPENSION ARCH, INCLUDING CERAMIC SUSPENSION TILE 3 Sheets-Sheet 1 Filed Sept. 5, 1946 Oct. 3, 1950 H. w. WEBER ETAL 2,524,721

SUSPENSION ARCH, INCLUDING CERAMIC SUSPENSION TILE Filed Sept. 5, 1946 3 Sheet-S-Sheet 2 Oct. 3, 1950 H. W. WEBER ETAL SUSPENSION ARCH, INCLUDING CERAMIC SUSPENSION TILE Filed Sept. 5, 1946 3 Sheets-Sheet 3 HTTcpA/E #5,

jatented Oct. 3, 195() SUSPENSION ARCH, INCLUDING CERAIVHC I.

SUSPENSION TILE Herman W. Weber, Richmond Heights, and

Daniel W. Williamson, Ferguson, Mo., assignors to Laclede-Christy Company, St. Louis, Mo., a corporation of lVlissouril Application September 3, 1946, Serial No. 694,560

16 Claims. l

The present invention relates generally to roof or arch constructions for furnaces, and more particularly to a tile suspension arch or roof Vfor high temperature furnaces.

An object of the present invention is to provide a novel tile suspension arch or roof for a furnace in which high temperatures are developed such as are encountered in the metallurgical industry, open hearth furnaces, checker chamber furnaces, and billet and slab furnaces.

Another object is to provide a novel tile suspension arch or roof for a furnace which is readily fabricated and which may be repaired with ease and rapidity.

Another object is to provide a novel tile suspension arch or roof for a furnace which incorporates castings of ordinary iron disposed out of the high temperature zones, thereby eliminating expensive heat resisting supporting castings which would otherwise have to be employed and which are prohibitive in cost.

Another object is to provide a novel tile suspension arch or roof for a furnace which is adaptable to any arch or roof shape which may be required to span a particular chamber.

Another object is to provide novel suspension, filler and roof tiles and hanger castings which collectively comprise the present novel tile suspension arch or roof.

Another object is to provide a novel tile suspension arch which is sturdy in construction and which is formed so that any particular tile can be reached for replacement without the necessity of dismantling the whole arch or roof construction.

Other objects are to provide a novel. tile suspension arch which is relatively inexpensive, which incorporates a minimum number of tile shapes, which may be readily installed with a minimum of instruction, which may be readily repaired with a minimum of instruction, which is fabricated to minimize the load of particular suspension tiles, and which has a long life requiring minimum maintenance.

Other objects and advantages, in addition to the foregoing, are apparent from the following description taken with the accompanying .drawings, in which:

Fig. 1 is a fragmentary longitudinal View through a tile suspension arch or roof construction fabricated in accordance with the teachings of the present invention, partly in elevation to more particularly disclose features of the present invention;

CTI

Fig. 2 is a fragmentary transverse cross-sectional view taken on the line 2 2 of Fig. l;

Fig. 3 is a fragmentary transverse cross-sectional view taken on the line 3 3 of Fig. 1;

Fig. 4 is an enlarged isometric view of a preferred form of the novel suspension tile forming a part of the present arch construction Fig. 5 is an enlarged isometric view of a novel roof tile forming a part of the present roof construction;

Fig. 6 is an enlarged isometric view of a novel filler tile forming part of the present roof construction; l

Fig. 7 is an enlarged plan View of a novel suspension casting or bracket `forming part of the present roof construction, a portion being broken away to illustrate a detail thereof;

Fig'. 8 is an enlarged exploded View in plan 0f the novel suspension casting shown in Fig. 7;

Fig. 9 is an enlarged side elevational View of the suspension casting shown in Fig. 7, looking towards the head of the bolt;

Fig. 10 is an enlarged end elevational View of the suspension casting shown in Fig. '7, illustrating its relation to a suporting I beam and a supported suspension tile, the latter two elements being shown in cross section;

Fig. 11 is an enlarged end View of said suspension casting; and

Fig. 12 is an isometric view of the beam clamp forming part of the present suspension arch.

Referring to the drawings more particularly by reference numerals, 20 indicates generally a tile suspension arch or roof formed in accordance with the principles of the present invention. Broadly, the suspension arch 26 includes suspension castings or bracliets 22 supported Aon I beams 24, suspension tiles 25 hanging from the suspension castings 22, roof tiles 23 and 36 hanging from the suspension tiles 26, filler tiles `32 supported by the roof tiles 28 and 3i?, and beam clamps 34. I beams `E and channels .3l are disposed at right angles to I beams 24, said I beams 36 and channels 3l being supported by vertical I beam posts 38 in the disclosed embodiment.

Considering in detail the several elements of the present novel arch construction 20, each suspension casting 22 comprises a pair of cast members 46, each of which includes .a vertically disposed side portion 42, horizontally disposed lugs 44 and 46, and a horizontal flange 48 disposed in a plane above the plane of the lugs 44 and 46 (Figs. 7 through 11). The side portion 42 is notched at each upper corner to provide a vertical shoulder 50. The side portion 42 also includes spaced circular openings 52 and 54 and a centrally disposed aperture 56. The flange 48 has a sloped underface 58 to conform to the sloped inner face of the flange of a standard I beam. The lug 44 includes a depression 60 and the lug 46 a projection 62. It is clear from Fig. 7 that a projection 62 of one cast member 40 fits into the depression '50 of the other cast member 40 when held in opposed operative relation by a bolt 64 secured by a nut 66. Fig. 10 shows the relationship of the suspension casting 22 in respect to its supporting I beam 24 and a supported suspension tile 26.

The suspension tile 26 is ofY rectangular form, as is clearly shown in Fig. 4, including opposed parallel side faces 68, opposed parallel end faces and opposed parallel top and bottom faces 12 and 14, respectively. Formed integral with the suspension tile 28 and extending from each of the side faces 68 are ve buttons or bosses 'I6 and 18 of cylindrical form, there being two bosses 18 disposed adjacent the top face '|2 and three bosses 'I8 disposed adjacent the bottom face '|4. The bosses 16 and 'I8 may take other shapes if desired, although a circular cross section is preferred.

Each roof tile 28 is preferably of the configuration shown in Fig. 5 and includes a side face 80 having an upper portion 82 inwardly offset by a shoulder or shelf 84. A circular well 85 is formed in the upper portion 82. An o-pposed divergent side face 86 includes an upper portion 88 inwardly offset by a shoulder or shelf 90. Parallel end faces 92 and 96 include a raised portion 94 and a depressed portion 98, respectively. A top face |00 and a bottom face |02 complete the tile 28.

The roof tile 30 is basically the same as the roof tile 28, differing therefrom only in the specic configuration required to change the direction of the arch construction 20, which is clear from Fig. l of the drawings.

The filler tile 32 is preferably of the configuration clearly shown in Fig. 6 and includes parallel side faces |04 and |06, end faces |08 and ||0 and a bottom face I |2. A displaced integral head portion ||4 provides a shoulder HE adjacent the top of the side face |04 and suspension shoulders H3, and |22 adjacent the top edges of the end faces |08 and ||0 and the side face |06, respectively. The end faces |08 and ||0 converge towards the bottom face ||2, as is clear from Figs. 2 and 3.

The beam clamp 34 includes two stop members `|30 held together by a bolt |32 and a nut |34,

,16 of the tile 26 being disposed in the openings 52 and 54 of the cast members 40 of the suspensio-n castings 22. The shoulders 84 prevent undue relative movement. The nut 66 is threaded onto the bolt 64 to secure the suspension casting i 22 in place.

A roof tile 28A is disposed on `each boss 18 by means of the wells 85. Filler tiles 32 are disposed between rows of roof tiles 28, the suspension 4 shoulders ||8 and |20 of the ller tiles 32 restd ing on the shoulders of the roof tiles 28.

Insulation |26, such as slag wool or diatomaceous earth, may be disposed on the roof tiles 28 and 30 and on the filler tiles 32. Four inches of insulation has been found to be adequate in installations.

Three types of refractory material to accommodate diierent types of furnaces are suitable for the suspension tiles 26, the roof tiles 28 and 30 and the filler tiles 32. The tiles may be made of re clay where no slags are encountered; they maybe formed of silica to resist acid slags such as obtains in the glass industry; and they may be made of basic refractory to resist basic slags, chrome or magnesite being suitable materials, the copper industry being an example requiring basic refractory. It is generally understood that other refractory materials may be used for the tiles in suspension roofs 20 employed in the above-mentioned industries or elsewhere. I l

In a, preferred suspension roof 20 spanning a furnace in which the roof temperature may l: 2800 F., roof tiles 28 and 30 and filler tiles 32 of a depth of ten or twelve inches may be employed. The particular dimensions of the several tiles will, of course, depend upon the particular furnace installation and can be readily computed by anyone skilled in the furnace art.

It is clear from the foregoing taken with the drawings that the suspension castings 22, as well as the I beams 24 and 30, are remotely disposed in respect to the high heat within the furnace which the suspension arch 20 spans. Hence, the suspension castings 22 may be made of ordinary iron, since they are not subjected to high heat, and such ordinary iron suspension castings 20 will enjoy a long life. Expensive heat-resisting supporting castings, which often are prohibitive, are not required. The same is true of the I beams 24 and 36.

It is manifest that the suspension arch or roof 20 adapts itself to any roof shape required. In Fig. 1, the suspension arch 20 is shown adapted to a horizontal roof portion and an inclined roof portion, which are illustrative only, since the suspension roof 20 may be conformed to substantially any desired inner roof contour.

The suspension arch 20 is of sturdy construction, is easy to install, and is easy to repair since any one or more ller tiles 32 may be readily removed to permit access to any damaged roof tiles 28 or 30, or suspension tiles 26. Access is provided to the suspension castings 22 from the exterior of the furnace since the supporting upright I beams 38 and the I beams 24 and 36 are located in a factory room, or the like, free of any outside cover in a standard installation.

The novel boss or button relation of the suspension castings 22 and the suspension tiles 26 and the roof tiles 28 and 30 facilitates the installation and repair of the suspension arch 20, and, hence, this boss or button relationship is an important feature of the present invention.

It is manifest, of course, that the several ele ments forming thel present novel suspension arch 2|] may individually take forms other than those `forms given by way of illustration. However, it

is preferable to use tiles of a selected shape or form in aparticular installation since this serves to speed up construction. Furthermore, the use ofa particular shape for a particular tile on a long range plan is advantageous, since it permits stocking of the tiles, which insures immediate delivery to a damaged furnace for quick repair.

to the lowermost suspension castings 22 and suspended tiles which could, in some instances, reach a factor large enough to shear the bosses or otherwise damage the tiles.

It is apparent from the foregoing description taken with the accompanying` drawings that there has been provided a suspension arch which fuln lls all of the objects and advantages sought therefor.

It is contemplated that those changes in form, rearrangement of parts and substitution of equivalents, which will be manifest to those skilled in the art, are within the scope of the present invention, the present description and accompanying drawings being provided by way of illustration and example and not for limitation, the invention being limited only by the claims which follow.

What is claimed is:

l. A tile suspension arch comprising a support including structural members, brackets supported by said structural members, said brackets having depending portions with openings therein, ce rarnic suspension tiles including bosses, said bosses being disposed in the openings of the brackets, and a plurality of roof tiles supported by and depending from said suspension tiles.

2. A tile suspension arch comprising a support including structural members, brackets supported by said structural members, said brackets having depending portions with openings therein, ceramic suspension tiles including upper and lower bosses, said upper bosses being disposed in the openings of said brackets for support of said suspension tiles, and roof tiles including wells adapted to receive the lower bosses of said suspension tiles, the wells of said roof tiles being disposed about said lower bosses to support said roof tiles.

3, ln construction of the kind described, a supporting bracket having a depending portion with openings therein, a ceramic suspension tile including upper and lower bosses, said upper bosses being disposed in the openings of said bracket for support of said suspension tile, and roof tiles including wells adapted to receive the lower bosses of said suspension tile, the wells of said roof tiles l being disposed about said lower bosses to support said roof tiles.

4. In construction of the kind described, a supporting bracket having a depending portion with openings therein, a ceramic suspension tile including upper and lower bosses, said upper bosses being disposed in the openings of said bracket for support of said suspension tile, roof tiles including wells adapted to receive the lower bosses of said suspension tile, the wells of said roof tiles being disposed about said lower bosses to support said roof tiles, and filler tiles supported by said roof tiles and forming therewith a continuous furnace roof.

5. A bracket for supporting a refractory member from a structural member comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a ange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion, and means securing said bracket members together and on a structural member..

6. A bracket for supporting a refractory member from a structural member comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a flange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, a projection on the free end of one lug and a depression in the free end of the other lug, the lugs of the opposed bracket members being in abutting relation when said bracket is in use with a projection in a depression, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion, and means securing said bracket members together and on a structural member.

7. A bracket for supporting a refractorymem- 'oer from a structural member comprising a pair of opposed identical bracket members, each member including a side portion, a ange extending at an angle to the side portion and adatped to engage a flange 0f a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, a projection on the free end of one l'ug and a depression in the free end of the other lug, the lugs of the opposed bracket members being in abutting relation when said bracket is in use with a projection in a depression, said lugs being in a plane below said flange, means for supportingly engaging a sus'- pension tile formed in the side portion including spaced openings in said side portion disposed in symmetrical relation to said flange, and means securing said bracket members together and on a structural member. n

8. A tile suspension arch comprising supporting structure, brackets suspended from said supporting structure, each bracket including spaced depending side portions, at least two openings in each depending side portion, a ceramic suspenn sion tile supported by each bracket, each suspen- I sion tile having opposed sides, at least two spaced bosses extending outwardly from both sides near the top of the tile, said bosses being disposed in said openings in the depending portions of said bracket for support of said suspension tile, a plurality of spaced bosses extending outwardly from said suspension tile sides below said first mentioned bosses, and a roof tile supported on and depending from each lower boss.

9. A tile suspension arch comprising supporting structure, brackets rigidly supported by and suspended from said supporting structure, each bracket including spaced depending side portions, at least two openings in each depending side poru tion, ceramic suspension tile supported by each bracket, each suspension tile having opposed sides, at least two spaced bosses extending outwardly from both sides near the top of the tile, said bosses being disposed in said openings in the depending portions of said bracket for substantially rigid support of said suspension tile, a plurality of spaced bosses extending outwardly from said suspension tile sides below said first mentioned bosses, and a roof tile supported on yand depending from each lower boss.

10. A tile suspension arch comprising support-A lng structure, brackets rigidly supported by and suspended from said supporting structure, each bracket including spaced depending side portions, Y

at least two openings in each depending side portion, a ceramic suspension tile supported by each bracket, each suspension tile having opposed sides, at least two spaced bosses extending outwardly from both sides near the top of the tile, said bosses being disposed in said openings in the depending portions of said bracket for substantially rigid support of said suspension tile, a plurality of spaced bosses extending outwardly from said suspension tile sides below said first mentioned bosses, a roof tile supported on and depending from each lower boss, and ller tiles supported by and between said roof tiles.

1l. A furnace arch comprising a supporting structure including flanged structural members, brackets for supporting refractory members suspended from said supporting structure, each bracket comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a flange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion, means securing said bracket members together and on a structural member, a suspension tile supported by the tile supporting means of each bracket, and a plurality of roof tiles supported by and depending from each suspension tile.

l2. A furnace arch comprising a supporting structure including flanged structural members, brackets for supporting refractory members suspended from s-aid supporting structure, each bracket comprising a pair of opposed identical bracket members, each member including a side portion, a ange extending at an angle to the side portion and adapted to engage a frange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, a projection on the free end of one lug and a depression in the free end of the other lug, the lugs of the opposed bracket members being in abutting relation when said bracket is in use with a projection in a depression, said lugs being in a plane below said flange, means for supportingly engaging suspension tile formed in the side portion, means securing said bracket members together and on a structural member, a suspension tile supported by the tile supporting means of each bracket, and a plurality of roof tiles supported by and depending from each suspension tile.

13. A furnace arch comprising a supporting structure including flanged structural members, brackets for supporting refractory members suspended from said supporting structure, each bracket comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a flange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, a projection on the free end of one lug and a depression in the free end of the other lug, the lugs of the opposed bracket members being in abutting relation when said bracket is in use 'with a projection in a depression, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion including spaced openings in said side portion disposed in symmetrical relation to said flange, means securing said bracket members together and on a structural member, suspension tiles supported by said brackets, each suspension tile including opposed outwardly extending bosses supportingly occupying said spaced openings in said side portions of said supporting bracket, and a plurality of roof tiles supported by and depending from each suspension tile.

14. A furnace arch comprising a supporting structure including flanged structural members, brackets for supporting refractory members suspended from said supporting structure, each bracket comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a flange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, a projection on the free end of one lug and a depression in the free end of the other lug, the lugs of the opposed bracket members being in abutting relation when said bracket is in use with a projection in a depression, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion including spaced openings in said side portion disposed in symmetrical relation to said flange, means securing said bracket members together and on a structural member, suspension tiles supported by said brackets, each suspension tile including opposed outwardly extending bosses supportingly occupying said spaced openings in said side portions of said supporting bracket, each suspension tile having a plurality of spaced opposed bosses extending outwardly therefrom below said rst mentioned bosses, and a roof tile supported on each of said lower bosses and depending therefrom, each roof tile having a well receiving the respective boss.

'15. A furnace arch comprising a supporting structure including flanged structuralmembers, brackets for supporting refractory members suspended from said supporting structure, each bracket comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a flange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion, means securing said bracket members together and on a structural member, at least two openings in each depending side portion, a suspension tile supported by each bracket, each suspension tile having opposed sides, at least two spaced bosses extending outwardly from both sides near the top of the tile, said bosses being disposed in said openings in the depending portions of Said bracket for support of said suspension tile, a plurality of spaced bosses extending outwardly from said suspension tile sides below said first mentioned bosses, and a roof tile supported on and depending from each lower boss.

16. A furnace arch comprising a supporting structure including flanged structural members, brackets for supporting refractory members suspended from said supporting structure, each bracket comprising a pair of opposed identical bracket members, each member including a side portion, a flange extending at an angle to the side portion and adapted to engage a flange of a structural member, a pair of spaced lugs extending from the side portion in the same direction as the flange, a projection on the free end of one lug and a depression in the free end of the other lug, the lugs of the opposed bracket members being in abutting relation when said bracket is in use with a projection in a depression, said lugs being in a plane below said flange, means for supportingly engaging a suspension tile formed in the side portion, means securing said bracket members together and on a structural member, at least two openings in each depending side portion, a suspension tile supported by each bracket, each suspension tile having opposed sides, at least two spaced bosses extending outwardly from both sides near the top of the tile, said bosses being disposed in said openings in the depending portions of said bracket for support of said suspension tile, a plurality of spaced bosses extending outwardly from said suspension tile sides below said rst mentioned bosses, and a roof tile supported on and depending from each lower boss.

HERMAN W. WEBER. DANIEL W. WILLIAMSON.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS

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