US1019035A - Arch-plate for furnaces. - Google Patents

Description

J. R. FORTUNE & Pf-B. BIGELOW."

u I ARCH PLATE FOR FURNACES.

APPLIOATION FILED JULY 16,1908. I

. Patented Mar. 5, 1912.

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//%V IN VEN MRS WITNESSES:

' to a very high temperature will, in time,

rmrrnn STATESPATENT orrion. JO HN R. FORTUNE, OiF DllilTROTT, MICIL%1: T6INils vIFIEbAlV'iK/B. YBIG'EIJOW; C'HICALGO,

ARCH-PLATE FOR FURNACES.

To all whom it may concern Be it known that we, JOHN R; FORTUNE 5 troit, in the county of \Vayne and State of Michigan, and Chicago, Cook county, Illinois, respectively, have invented cert-am new and useful Improvements in Arch-Plates for Furnaces, of which the following is a specification, reference being had therein to the accompanying drawings.

.In automatic furnaces in which a casting or so-called arch-plate is employed to support the furnace-arch and to form one side plates by being subjected to the extreme heat become in time burned out, cracked or warped so thatfit is necessary to remove and replace them. Numerous forms of archplates have been devised, SOITIBbGHIg cast with a series of ribs forming air passages through which a circulation of air is main tained to cool the plate but it has been found ,that, notwithstanding the air circulation, the lower end of the plate which is subjected become warped, cracked or burned so that it is necessary-to remove and discard the v f whole archr'plate and that it has also been found that arch-plates so formed are expensive, being diflicult to cast, and requiring complicated'cores.

The object of this invention is to provlde an arch-plate having airpassages and so madeiand, is formed in detachable sections so that if damaged by the heat, the damaged sect-ion maybe removed and a. new one put in its place, obviating the-necessity for removing and discarding'the entire arch-plate. To this end the-invention consists inv the construction substantially. as shown and described and particularly pointed out in the claims, reference being bad to the'accompa'nying drawings in which: I

Figure 1- is a perspective view] of aportion of a furnace showinganar'ch-plate em bodyingfthe invention, in place therein; -Fig. 2 is a diagrammatic'view showing a furnace in transverse section; Fig. 3 is an enlargedperspedtive detail of an arch-plate with'oneof the-removable sections detached;

and Fig. 4 is a, transverse section of the.

same.

,As shownin the drawingsl are thei ini-f.

Specification of Letters Patent. Application filed July 16, 1908. Serial No. 443,756.

0f the coal magazine it is found that these I constructed'that it may be easily and cheaply Patented'Mar. 5, 1.912.

clined grate-bars supported at their lower ends upon the grate-bearer 2 with their upper ends resting against the cokingplates 3 over which the coal from the maga- 1 I zines 4 above, is shoved by the Stoker-boxes 5 actuated by segments on the rock-shafts 6,

all being constructed and-arranged in the usual manner.-

I The inner sides of the coal magazines 4 are formed by the arch-plates 7 embodying this invention. This arch-plate is preferably cast with a vertical wall v8 having on its inner side an inwardly extending longitudinal rib 9 and a series of webs 10 at the upper side of said rilrconnecting the wall and rib to brace the latter and form a series of pockets 11 at its upper side, said-webs being given such a slant that when the pockets formed bet-ween are filled with cement or other suitable material level wit-h the slanting Supper edges of the webs, a ledge. or skew seat of the desired inclination-will be formed thereby, to support the end of the upper or outerarch 12 of the furnace.

Adjacent to the lower edge of the wall 8 is a series of spaced inwardly extending ears 13 having horizontal, laterally extending lugs or pins 14 and for the purpose of.

strength and to prevent warping, webs 15- connect said ears and rib 9 and said webs 15 are intermediately connected by a longitudi nal rib 16, The lower edge of the wall 8 is extended inwardly and downwardly to form a shelf or ledge 17 extending at the proper inclination to support a series of sections 18 at the desired angle to form a skew seat or abutment for the lower or inner arch 22 of the furnace. The inwardly extending ledge and the several spaces between the cars 13 form a series of pockets into which the several sections loosely fit and are held by their their pins-14. Each of these sections 18 are a formed with an upper side or wall provided 'with an upwardly extending rib or projection 19 to engage the tire-brick of the arch and hold the same in place thereon, and into gral with the inner or lower surface of this wall is.a series of ribs 20 which form between them air passages 21 opening through the inner end of the se tion. At the opposite end of the section the upper wall and said ribs are turned upward forn'ling a hooked end to engage beneath the pins 14 on the ears and loosely interlock the section of the furnace. These sections thus form hollow twyers between the spaces above and below the arch and they fit loosely together and against the ears and adjacent parts,

their upper surface forming a continuous seat fgr the inner arch. The air passages, when the sections are in place, are open at their ends only, their upper ends opening just belovit the rib 16 and their lower ends throu h' the lower ends of the sections, and thus hability to their becoming clogged with cement or other material during the construction of the arches, is obviated.

The lower portion, or lower arch-seat of the arch-plate is subjected to the greatest heatand is, therefore, the part which is the most liable to be injured thereby. By making this portion of the arch-plate in detachable sections, if any portion of it becomes burned or cracked, that portion or section may be readily removed and a new section put in its place without the necessity for re-.

hewing the entire arch-plate and liability to warping and cracking due to expansion and contraction, is eliminated, by loosely engaging the sections with their support and by providing space between the sections sufficient to allow for such expansion. These sections may also be much more cheaply cast with air passages, than ribs forming air passages, can be cast as an integral part of the whole plate, and by making the main body of the arch-plate in theform described, it may also be cheaply cast, thus. greatly cheapening the whole.construction of the arch-plate.

Having thus fully described our invention what we claim is: v

1. An arch plate'for automatic stokers comprising a supporting wall, and an arch seat member extending outwardly from said wall and held by gravity, loosely interlocked therewith.

2. An arch-plate comprising a supporting 'mcmber, a series of members together forminga continuous arch seat, 'and means for detachably securing said members to the supporting member, said arch plate being formed with air passages between said so ricso'l' members and.said member.

3. An arch-plate comprising a supporting member and a series of members detachably attached to the supporting member, each having a continuous imperl'orate upper side which sides eonjointily' "form an arch seat and said'members being formed with air pas sages below said side extending upward between said menm rs and said supporting member and opening at one end along the.

. 5. An arch-plate comprising a supporting member, a plurality of members .having curved ends, means on the supporting mem ber with which said ends are adapted to be engaged to detachably attach said members to saidsupporting member, and ribs on said ends engaging the supporting member and forming air passages between said ends and said member.

6. An areh-plate consisting of a wall provided with a series of pockets at one side having upper edges inclined relatively to the wall and adapted to receive material to form a skew seat foran arch.

7. Anarch-plate consisting, of a wall, a rib extending laterally from said wall, and a series of webs connecting the rib and wall at the upper side of said rib to form a-series of pockets adapted ,to receive a material to form a seat for an arch. j

8. An arch-plate consisting of a wall, a rib extending outward from one side of said wall and a series of parallel webs at the upper side of said ribformed integral therewith and withsaid'wall and having straight outer edges extending at an inclination to the wall, said webs forming pockets between them adapted to be filled with a material tachably holding the same in place upon said shelf;

10. An arch-plate comprising a vertical wall having a projecting portion, a series of spaced ears on said wall near said projecting portion, a series of members titling between said ears and seating upon the projeeting portion of the wall, and means on the ears engaging the members to detachably hold the same in place.

II. An arelnplate consisting of a wall, an inclined shelf upon the lower-edge of said wall, a series of detachable sections 7 shelf on the l being formed with curved ends to inclined shelf at the having cut-away 1 ortions to receive the shelf and provid with air assages extending therethrough, said shell forming a part oi the lower wall of said passages, and means on the wall for engaging and detachablyholding the sections. 12. An arch lower edge of said wall, a series of spaced ears on the wall eachhaving a laterally projecting member, and a series of members restingupon said shell and 'together forming an arch seat, said members engage the laterally extending members on the cars. 13. An arch-plate consisting of awall, an lower end of said wall, a series of cars extending outward from said wall adjacent to the shelf, laterally extending pins on saidears, and a series of curved end enga reach formed wit secti'ens toqfit between the ears and rest upon the shelf, said sections each having a rig beneath the pins and aseries of air passages opening through the lower ends of said sec of pockets, a series of laterally tions and upward through the curved ends oi said sections between saidears adjacent to the, wall. r

14. An arch-plate consisting of a wall, a rib extendin saidwall, We as connectin the rib and wall aterally from one side of at theupper side of said ml) to form a series extending the lower edge of said wall,

ears adjacent to said ears and rib, pins on webs connecting the ears, an inclined shelf on the lower edge of the'wall, a series of sections'adapted-to fit between the ears and rest upon the shelf and provided with a curved and to engage.

- beneath'the pins and each formed "with a jointly forming a continuous seat for anseries'of air passages opening through its lower end and through the upwardly curved upper endadjacent to the wall. i

15. An arch-plate for automatic stokers Comprising a wall extending the length of the arch-plate, and aseries of members loosely engaged with and independently supported by saidwall and extending lat-- .erally therefronnsaid members conjointly forming a; seat for an arch. v 1

'16. An arch-plate for automatic-Stoker's comprising a vertical wall, a series'of mem bers supported by said wall and extending laterally therefrom, said members conarch, and interlocking means for loosely attaching said members to said wall. 7 17. An arch-plate comprising a wall extending the length thereof, a series of mem- I bers dctanhably attached to the wall and arranged in aliucment to conjointly formv an arch scat along one sideof said Wall, said plate comprising a Wall, a,

members being formed with ribs at one sidl adjacent to said wall forming air passages between said members and wall,and means for detachably attaching said members to the wall. a a v "y 18. In'a furnace, the combination with a magazine, an arch abutment, supported by therewith to permit relative movement be tween the magazine and abutment, and an arch supported upon said abutment, said abutment being provided "with a passage constituting a tw er between the space above and the space belbw said arch,

20. In a furnace, the combination with a magazine, of an arch abutmentloosely interlocked with the side wall thereof, and extending outwardly therefrom, the weight of said abutment maintaining the same in interlocked engagement with the magazine wall, and an arch supported upon said abut ment. i

21. In a furnace, the combination with a refractory arch, a fuel magazine at one side thereof, said magazine being provided with a vertical side wall having a led e extending laterally from the outer sur ace thereof, an arch abutment seated on said ledge, and provided with an upwardly extending portion, and a keeper on the side Wall of the magazine for loosely engaging said portion.

22. In a furnace, the combination with a magazine-having a wall provided with a plurality of pockets, a plurality of independent archvabutments supported in said pockets and each loosely interlocked there- With so that. theremay be relative 1novementbetween the magazine and the abutments, the abutinents being arrailged end to end and in close proximity to each other,

arch seat.

In testimony whereof we afiix our signatures in presence of witnesses.

' J OHN R-FORTUNE.

FRANK B. BIGELOW.

Witnesses as tothe signature of John R.

Fortune I C. R. Srrouunv,

@TTI.) F. BAR'I'IlI-IL. Witnesses as to the signature of Frank B. Bigclowf v B. F. BONNELL, L. M. Jonasthereby forming a substantially continuous

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