US1345410A - Boiler arch and wall and means for supporting same - Google Patents

Description

L. S. SHAW. BOILER ARCH AND WALL AND MEANS FOR SUPPORTING SAME.

APPLICATION FILED MAY 3!, I919;

Patented July 6, 1920.

3 SHEETS-SHEET I.

. lo j 2 OO 0 OOO L. S. SHAW.

BOILER ARCH AND WALL AND MEANS FOR SUPPORTING SAME. APPLICATION I-"ILE D MAY 3!. I919.

I 34, 5,41 O.- Patented July 6; 1920.

3 SHEETS-SHEET 2.

L. S. SHAW.

BOILER ARCH AND WALL AND MEANS FOR SUPPORTING SAME.

APPLICATION FILED MAY 3I. 19I9. 1,345,41 0. P en d July 6, 1920.

3 SHEEIS-SHEEI'3.

Qvwentoz LUTHER S. SHAW, OF DETROIT, MICHIGAN.

BOILER ARCH AND WALL AND MEANS FOR SUPPORTING SAME.

Specification ol' Letters'l atent.

Patented July 6, 1929.

Application filed May 31, 1919. serial No. 300,897.

To all whom it may concern:

Be it known that l, LUTHER S. SHAW, citizen of the United States, residin at Detroit, county of Wayne, State of Michi- 'an, have invented a certain new and useful improvement in Boiler Arches and Walls and Means for Supporting Same, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to boiler settings, but more particularly to means for supporting the roofs, arches and side walls,-the same being constructed of unburned fire brick while the latter is in a fictile condition,and also for permanently suspending the same after the fire brick material has been duly burned.- I

, One object'of the invention is to provide means, in combination with permanent -hangers, adapted to support channel irons,

metal lath and paper to serve as a form for the unbaked fire brick material to hold it in place while baking.

Another feature of the invention consists in providing tubular bolts (throughwhich air may circulate to prevent warping an v burning of the metallic parts) suspenzle'l from Z-beams or other suitable structural membersthe bolts being provided with relatively large nuts or disks, secured there on for permanently supporting the arch-or wall when baked ;-removable tubular bolts being screwed into said nuts to support channel irons on which is laid metal lath and paper for supporting the firebrick material when in a formative condition,-said supporting elements being removed when the fire brick material has been duly baked.

Another feature of the invention consists in surrounding all metals embedded in the fire brick material with ferrules, gaskets or washers of flexible material such as paper I felt. Another feature consists in providing for lowering the arch on to the permanent hangers for supportvafter baking) Another feature of the. invention consists in providing a flexible connection between the bolts employed to permanently sustain the arch and those used for temporarily supmay be relieved of any porting the platform on which the fire brick material is laid before burning.

Another feature of the invention consists in suspending the permanent hangers by a nut adapted to tilt upon the flange of the supporting rail, that the fire brick material strain occasioned by a lilanger rigidly .secured to the supporting ral Another feature is the closure of the holes in the fire brick wall upon the removal of the temporary supporting bolts.

Another feature of the invention is the driving out of said plugs by the insertion of a suitable tool in the permanent tubular bolts above the temporary bolts ;-that channels, lathing and paper may be again installed for the purpose of making repairs.

Another feature of the invention consists in providing ventilating washers and nuts for the passage of air whereby the parts may not warp or injure the fire brick wall while baking the latter.

Another feature of the invention consists in providing suitable expansion joints in the fire brick material to further protect the walls against injury during the baking process.

Another feature of the invention consists in the manner of supporting the roof and side walls of inclined or V-type stokers.

Another feature of the invention consists in providing means whereby the side walls may be raised from the magazine for repairs, the same being subsequently lowered into their former position.

Another feature of the invention is to prevent the side walls tipping or sliding into the furnace.

Another object is to take the weight of the side walls ofi the iron work of the sto'ker magazine.

Another feature of the invention is the method of constructing and supporting anv arch suitable for the rear end of a, return tubular boiler. Y

With the foregoing and other objects in view which will ap ear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes may be made in the precise,

Fig. 6 is a cross-sectional view through I a V-type stoker furnace-showing-the man ner of suspending walls.

Fig. 7 is a cross-sectional view also taken, on line 4-4 of Fig. 3, showing the temporary means employed for supporting the arch while the fire brick'material is in a fictile condition.

Fi 8 is an enlarged sectional detail view the arch and vertical side showing the tubular bolts for 'temporaril and for permanently suspending the arc the flexible connection between the bolts, and also the vents through the bolts and supporting disks and nuts, to providefor the circulation of air therethrough.

Fig. 9 is an enlarged sectional detail view, showing a tool inserted in the tubular bolt for driving out the plug in the arch, that the supporting means shown in the preceding view may be installed for making repairs in the arch.

Referring now to the letters of reference placed upon the drawings 1-- A, denotes a boiler. B, the usual brick side walls or setting for supporting the same. C, portedby the side walls of the boiler setting.

D, denotes a plurality of tubular bolts, spaced apart and suspended by nuts D, from the flange of the Z-beam C,--the head of the nut being preferably inverted in order that its rounded face may permit of a sli ht swinging action of the bolt.

' E, indicates a relatively large disk loosely secured to the bolts by expanding the lower end of the bolts, as indicated at a;-the disks being preferably arc-shaped on their upper face and provided with a plurality of ventilating holes E, through the wall of the disks for the passage of air.

F, are removable tubular bolts, screwed into the respective disks, to provide a temporary extension of the bolts D, for supporting the channel irons G. H, indicates corrugated iron or expanded metal lath resting upon the channel irons, and I is a paper are 2- or other suitable beams sup- 1 lining mounted upon the metal lath. J, indicates a felt or paper gasket or wrapping surrounding the bolts or disks.

K, denotes the arch formed of unburned fire brick laid upon the temporary sustaining members, but embedding the ends of the permanent supporting hangers or bolts. The form of the arch ma be either flat, or arc-shaped as indicated 1n dotted lines in Fig. 7 of the drawings. The ends of the temporary supporting bolts F, are provided with transverse holes F, and the ends of the bolts are fitted with an apertured plug F to reduce the opening so as to cause a circulation of air through the channel irons G, as well as throughout the bolts to thus insure against warping or buckling of the parts.

Prior to baking the material forming the arch, the nuts on the lower ends of the bolts F, may be adjusted to slightly raise the fire I brick material so as to take the load from the permanent disks or washers E, until the arch has been properly baked.

The fire brick material forming the arch, having been properly shaped to meet the requirements of the installation upon the temporary supporting members, it is then baked and upon completion of the baking process.

the temporary su porting members are removed, and the lioles through which the bolts projected for suspending the latter structure are then plugged up as indicated at L, in Fig. 5 of the drawings.

By suspending the bolts by nuts having a rounded face in contact with the supporting beam, provision has been made for a slight rocking movement of the bolt which may occur due to the expansion or contraction of the fire brick material during the baking process, the latter is thus relieved of stresswhich in a rig'idly fixed bolt might cause the fire brick material to crack.

A flexible connection between the end of the bolts D, and the disks E, is obtained by expanding the end of the bolt so as to engage the overlapping wall of the disk, the object being to provide a yielding connection between the upper and lower bolts so as to relieve the fire brick material of the stress that would occur from a rigid connection and thereby overcoming any tendency" of the material to crack during the baking process. Y

It will be noted upon reference to Fig. 6 of the draw 'ings that the bolts at the end of the supporting beam extend down into the vertical side walls to support the latter, taking the weight of the side walls off of the iron work of the stoker magazine, the bolts also serving to prevent the side walls tipping or slidin into the furnace. By an adjustment of t e nuts from which the bolts are suspended, the side walls may be raised or lowered for repairs.

To provide for the ex ansion and contraction of the material orming the arch and side walls-expansion joints M, are provided, formed by inserting suitable wedges in the unburned fire brick material.

When necessary to repair the arch, the filler plug L, is first driven out by inserting a suitable tool N, in the bolts D. The extension bolts F, and "removable platform are then connected with the permanent bolts above as before, the necessary repairs being made with unburned fire brick material, supported as in the initial construction of the arch, by the removable platform until burned ;the platform and bolts are then removed and the holes plugged as before.

While the invention has been described more particularly as applied to steam boiler furnaces, it is equally well adapted for use in other forms of furnaces.

Having thus described my invention, what I claim is 1. In a boiler setting, the combination of a plurality of beams suitably su ported, a pluralit of bolts suspended rom said beams tted with relatively large. disks or nuts for supporting an arch or wall, a platform for temporarily supporting an arch or wall of unburned fire brick material, a plurality of bolts detachably connected with said first named bolts by said disks for suspending the platform during the process of.

burning the fire brick material, and an arch or wall suspended from said first named bolts, formed of unburned fire brick material upon said platform and baked while temporarily supported thereby.

2. In a boiler setting, the combination of a plurality of beams suitably supported, a plurality of tubular bolts suspended from said beams, fitted with relatively large disks or nuts for supporting'an arch or wall, a

platform for temporarily supporting an,

arch or wall of unburned fire brick material, a plurality of extension tubular bolts detachably connected with said first named bolts for supporting said platform during the process of burning the fire brick material, and an arch or wall permanently supported by said first named bolts, formed-of:

unburned fire brick material upon said platform and baked while temporarily supported thereby.

3. In a boiler setting, the combination of a plurality of beams suitably supported, a plurality of tubular bolts suspended from said beams, and fitted at their upper ends with nuts having a rounded face in contact with", the flange of the beams, disks loosely se-,

porting an arch or wall, said disks having cured to the lower ends of the bolts for supholes for the passage of air therethrough, extension tubular bolts temporarily con? nected with the first named bolts and fitted unburned fire brick material temporarily supported by said platform while being baked, and elastic wrappings surrounding said bolts and disks to maintain the fire brick material in spaced relation to said metallic members.

4. In a boiler setting, the combination of a plurality of- Z-beams, supported by the boiler setting, a plurality of tubular bolts suspended from the flanges of said beams, disks provided with ventilating holes loosely secured to the lower ends of said bolts for supporting an arch, extension tubular bolts temporarily connected with the first named bolts, having transverse openings for the passage of air, an apertured plug fitted to the end of said tubular bolts to reduce the longitudinal opening therethrough, whereby the air will pass longitudinally and transbeams, a plurality of relatively large disks or nuts having a flexible connection with the respective bolts for supporting an arch or wall, a platform for temporarily supporting an arch or wall of unburned fire brick material, a plurality of extension tubular bolts detachably connected with said disks or nuts for supporting said platform during the process of burning the fire brick. material, an arch or wall permanently supported by said first named bolts, formed of unburned fire brick material upon said platform and baked while-temporarily supported thereby, .-;and suitable parting strips embedded in said arch' or wall whereby expansion joints may be formed in'the latter.

a '6. In a boiler setting, the method and process of; suspending from an overhead structure an arch or wall of unburned fire brick' material and afterward baking the same in position, consisting in first mount- %ing;su1table supporting beams on the walls ofa boiler' setting adapted to support the arch or wall, suspending from said beams a 'plurality of hangers adapted to permanently support the arch or wall, temporarily suspending aplatform by detachable hangers connected with said first named hangers,

shaping an arch or wall out of unburned fire In testimony whereof, I sign this specifibrick material around said permanent supcation in the presence of two witnesses.

porting hangers and upon the temporary" LUTHER S SHAW supporting platform, baking the unburned 5 fire brick material while supported by the Witnesses:

platform, then removing the platform and S. E. THOMAS,

temporary supporting hangers. JOHN CONSIDINE, Jr.

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