US985878A - Furnace. - Google Patents

Description

R. B. `AsHmL FURNAOE. n APPLICATION I 'ILED SEPT. 4,1909.

Patented Mar. 7, 1911.

3 SHEETS-SHEET 1.

R. E. ASHLEY.

FURNAGE.

PPLIUATION FILED sBPT.4,19o9.

s SHEETS-SHEET 2.

Lw a R. E. ASHLEY.

PURNAGE.

APPLIOATIN FILED SEPTA, 1909.

Patented 11111111911.A

3 SHEETS-SHEET 3.

l all whom it may concern:

nos' n. ASHLEY, 'or Muslimen, anonima.

` suertes.

Be it known" thatI, ROYE. ASHLEY, a

'citizen `of the United YStates, residing at ylvuskegon,'in the county of Muskegon and State of Michigan, have invented certain new and useful Improvements in Furnaces,

iti

of which the following is a. specification.

rlhis invention relates to furnaces in general but is more especially related to that class of furnaces commonly designated as` Dutch oven furnaces.

The primary object of this invention is to provide as furnace of improved construcsetting, ,a boiler`1 is mounted in any suitable tion which can be economically manufactured, easily erected and readily repaired.

One of t e objects of this invention is to provide an im roved construction for those furnaces whic are peculiarly constructed for the purpose of adapting them to 'have portionsthereofremoved and replaced witli out tearing down any considerable portion Aof the furnace structure. i

Morespeciically, another object is to provide improved constructional features whereby each fire brick of the furnace lining` is held approximately in position independently of the other lire bricks.

Still another object is to provide an improved construction in and about the oven feed spout of fiat top ovens.

Other and further objects will appear in the specification and be more particularly pointed out in the claims.

,In the drawings which show one exemplifcation of my invention Figure 1 is a front elevation, partly in section, of a furnace provided with the improvements disclosed in this invention. Fig. 2 is a longitudinal section on the line 2 2, Fig. 1. Fig. 3 is a top plan View, partly broken away, of the flat top oven of the furnace shown in Figs. 1 andw2. Fig. 4 is an enlarged section on the line 4 4, Fig. 3. Fig. 5 isa-detail sectional view showing some of the coIfs-ructional featuresin and about the inner en'd of thetop wall of the oven. Figs. 6, 7, 8V. 9, 10, 1l and 12 are enlarged detail views of the several varieties of fire brick of peculiar construction which go to make up the inner lining of the furnace. t

Referring more specifically to the drawings, in which the preferred embodiment of my invention is shown applied to a boiler Specification of Letters Patent.

manner not specifically concerned in this in- Patented Mai'. 7, 15911. Application led September '4, 1909. Serial No. 516,214. i. v

vention, said b 'oiler setting being provided with a protruding fiat ,top dven comprising a front wall,2with a fire door 31 therein, side walls 4 and 5,top wall Gand gra-te bars 7, the grate/bars 7 being mounted in the lower portion of the fire box. Referring to the present embodiment, according'to which the details of my invention are shown more especially as applied to the top wall construction of the oven, said top` wall 6 com.- prises a plurality of structural sections, preferably -beams 8, which are suspended in anysuitable manner above the fire box.

Preferably, however, said I-beams extend longitudinally vof the lire box, being supported at the front preferably by means of an angle bar 9 riveted or otherwise rigidly secured to the plate' 10 extending across the front end of the furnace. Adjacent the rear ends of said -beams is positioned, accord` ing to this preferred embodiment, any suitable structural section, such as. the channel beam 11` which extends transversely across the re box and preferably is su ported at each .end directly by the side wal s 4 and 5y of the furnace.

Referring more especially to Fig. 5, any

suit-able vmeans may f be employed for sus- A pending the rear ends of the l-bea'ms 8 from the' channel beam 11 'but preferably such means should be detachable, such, for example, as the bolt 12 which is provided with a, nut 13 for releasably securing the flanges ofsaid I-beams and channelbar together. Mounted upon the upper flat surfaces of the I-beams 8 and covering the en itire flat top of the oven is a flat plate 14 7 which may be provided with one or more feed spout openings to meet the requirements of any particular instance. According to the present embodiment, a single feed spout opening 15 has been provided approximately at the center of the top plate 14 and preferably ismade oval-shaped and arranged longitudinally ofY the -beams for `a purpose to be hereinafter brought out.

Thetop plate 14 preferably abats directly against the face of the cover plate 19 and is maintained fiat along said abuttiu edge preferably by means of a small ang e bar 16, which is rigidly secured in any suitable mannerto the channel beam 11. There is, however, no rigid connection between the angle bar 16 and the top plate 14 so that when desirable said top plate 14 may be readily removed for the purpose of repair. Seated within Pthe oval-shaped opening 15 inthe top plate 14, is a flanged feed spout plate 17, the depending flange 18 o f which serves as a suitable closure for the air space between the top of the re brick lining and .the steel decking., Extending part-way around the boiler 1 is a suitable shield or cover 19 which, as shown, is preferably secured in place by being clamped between the channel beam 11 andangle bar 16 hereinbeforereferred to.

With a v iew more especially to facilitating the construction work on the oven, means are provided for holding each part of the furnace lining infposition on the supporting beams by making said supporting beams and lire lining parts of peculiar construction whereby the latter are maintained i in position under the action of their own edges 21,-22, vand to be heldagainst lateral displacement therefrom, said lire bricks have been made of several peculiar constructions now to be described.

Referring more especially toliigs. 7, 8

and 9, it will beseen that in several of the types, each lire brick is provided with a lateral recess or notchk 26, and extending along the upper corner of e notches 26 1s a recess or groove 27, t e bricks being .thusadapted when fitted one against the other to form a channel with a groove extending along an inner corner of the channel for receiving the flanges 21, 22. By means of this construction, each lire brick is held in ap'- proximately its proper, position during the placement of ley bricks, as will be described, while at the same time when the Abricks are firmlyl secured in position, air

ducts 23 are formed beneath the I-beams :pidthe channel lbeams 20, thus preventing tie destructive heating of said structural sections. The air ducts 23 preferably open from an air space 24 in the front wall of the furnace, which air space isy supplied from the outside through a grated opening 25 in` the plate 10, whichis providedxwith any suitable means, suchv as a sliding shutter, for controlling the air supply. The outer ends of the I-beams .8'are carried by the angle bar 9 rigidly attached to the front plate 10. It will thus be seen that the air passes. through the ducts. v23- and 1s discharged into the fire chamber at a point tions ar`e. provided with notches 26 andgrooves 27* similar to those already referred to in connection with the bricks 37 and 38, thus adapting them to be assembled with said bricks 37 and 38 to form the furnace lining. Certain additional features, however, have been embodied in the construction of the sections 28, 29, 30 and 31, with a view to obviating the use of structural steel or cast iron framing which has formerly been necessary for supporting fire blocks around the oven feed spout. For this purpose-the feed spout is composed only of sec.- tions which are yeach supported' by direct engagement with one of the supporting beams and which are in direct abutment one against the other. The feed spout thus con- /structed is made to conform with the opening 15 and can be made of great strength, for which purpose sections 28, 29 could be made integral while V,the sections 30 and 3l could also be made integral. Preferably, however, to facilitate the installationand removal of the feed spout, it is made of four sections, as shown, which after some 'of the adjacent sections of lire brick have been removed, permit the sections 28, 29, 30 and -3l to be slid along the flanges 21 or 22 for removing them out of abutment with each other, after which' they may be removed laterally from the bent flanges. 1 -Referring to Fig. 6 of the drawings, one of the double fire-bricks provided f or the inner end of each of the I-beams 8, is shown as comprising sections 32, 33, which sections when fitted together are ada-ptedby the peculiar formation of recesses formedv therein to provide asocket 34 of substantiallythe same cross section as the I-beam with an additionaLspace therebelow corresponding to the area of the air duct 23. YVithin this double fire brick comprising sections 32l and v33 is also provided an air discharge duct 35 which conducts the air directly into the lire box. The socket 34 is made ofrsuchdepth as will insure the sections 32 and 33 when placed together over the end of an I-beam belng maintained on the end of said I-beam by gravity. In other words, when said bricks are forced together by means of wedges to be presently described, the cen.- ter of gravity ofth'ecombined sections 32 and33 will be over the end of the I-beam.

V: InL Fi 10 is shown a IWedge-shaped fire 'j br'ick 3 the inclined ,faces of ywhich are adapted -to lit between correspondingly inclined faces of thesections 32 and 33 to hold v saidsections' in rigid abutment one with another in pairs over the endsof said Pbeams. Fig. 9 shows a half section fire lbrick 37 of the same general form as the lire brick 38 shown in Fig. 8.

In Figs. l1 and 12 are shown full section and half section Wedge-shaped key bricks 39 and 40,' Which are adapted to fit with' their inclined edges against the correspondingly inclined edges of the fire bricks shown in Figs. 8 and 9.

After having suspended the bricks of the several designs shown in Figs. 6, 7, 8 and 9vv in. `the-positions in whichy they are adapted 7 to t, the wedgesshaped key bricks shown in Figs. 11 and 12 are introduced between the-laterally inclined edges of thev former. In this way means is provided for forcing yso the former together' to form a lcompact li-ning. By an inspection of Fig. 3 it will be seen that some shapes of bricks are made in lhalf'sections and full sections for the purpose of breaking the joints between the adjacent series whereby a more compact fire tight lining 1s secured. Suitably mounted in the upper end of each of the wedgeshaped key` bricks 36, 39 and 40, is provided a notch 41 for receiving a handle which greatly facilitates the manipulation of said brick l What I claim isy 1. In a furnace, the combination with the I wall of a furnace having an inlet for air,

of a plurality of rigidly su ported beams provided each with upwardly-booked flanges', a `urnace roof comprising fire blocks pro-` videdl with hook-shaped notches for suspending them from sind flanges and formed to leave a wedgesshaped space between adjacent 'bricks of different beams, said notches j, being enlarged below to provide air ducts below the beams in communication with said I air inletkand the interior of the furnace, and wedge-shaped bricks forlling said wedgeshaped space.

2. Alattop oven having a pair of beams provided with upwardly hooked fianges, of a plurality of lire bricks provided'A with hook-shaped notches wherebywthey may bev suspended froml said anges independently of each other, said bricks being in abutment Witheach other and suitably shaped to 'forni afeed spout opening and adapted by their shape to bemoved out ofabutment to be removed transversely viom said.

vhooked flanges.

A.' fiat top oven having a feed spout" made .inLa plurality of abutting fire brick.

sections, said sections being" provided with notches, and ang'ed supports engagingsaidnotches, said sections being adapted by their shapes to' be inbved on said supports out of i abutment withA each othera'nd tobe removed separately from said supports.

4s; In a" furnace, the combination With a pliirality of rigidly supported beams provided each with upwardly hooked flanges,

of fire bricks prot'fjitled,withl hpok-shaed notches whereby said' bricks are suspen' ed from said flanges and held thereon against lateral.l dis lacement, said bricksr being 'formed to eave a Wedg'eshapedspace be- `parallelly disposed beams having hooked projections, of lire `bricks provided withnotchesA whereby they are removably sus-- pended from saidl projections and held against lateral displacement, the oppositely disposed ire bricks -on adjacent edges of adjacent beams being provided with angularly v disposed faces forminga L wedgeshaped space therebetween, wedge-shaped bricks for filling said space, and a cover plate resting upon the tops of said beams,

the separate removal of said Wedge-shaped and notched bricks.

' said cover plate being removable to permit 6. In a top wall fora furnace embodying a re'box, the combination with parallelly disposed beams each of which is provided Withtwo parallel lian es, fire bricks pro' vided withv notches -a aptin themto be suspended'in series along sai langessaid fire bricks being suitably proportloned to cover 'the beams on the side toward the fire box and to provide a wed e-shaped Space betweenthe bricks suspende from adjacent 4flanges of adjacent beams, and wedgeshaped key bricks adapted to yit said spaces.

7. A flat top oven having al feed spout p comprising a plurality j of abutting fire brick sections, each of said sections being provided withv a notchvand a groove in the fi wall of said notch, and a Banged support engaging in said groove, said notch permit-- ting each sect-ion tobe raised to remove the flange from the groove, and said bricks be'- ing movable relatively to each other along "i said flanges to remove the bricks lout of abutment with each other, wher enabled to be removed laterally:|` l

8. In a furnace, the combinatiowiwith adacently disposed beamsyeach' of sid beams eing provided with hooked projections,jof

fire bricks provided with hookshaped.

ab@ they are notchesadapting them to beindependently rriounted on the opposed projections of ad- .j t

jacent beams, said fire bricks being provided with adjacent y edges disposed' e angularly A 5 brick adapted to ll the Wedgefshaped space with reference to each other to form a name to this Specification, in the presence Wedge-shaped space and adapted by said of two subscribing Witnesses, on this 26th l0 notches to be raised and removed laterally day of August A. D. 1909.

from said-projections, and a. wedge shaped ROY E ASHLEY and to force theoppositely mounted bricks Witnesses: into close engagement with saidprojections. H. D. HANSEN,

In testimopywhereof I have signedvvmy' B.- A. PARKS.

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