US1275709A

US1275709A - Arch construction for furnaces.

Info

Publication number: US1275709A
Application number: US19834717A
Authority: US
Inventors: William Lemb
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-10-24
Filing date: 1917-10-24
Publication date: 1918-08-13
Anticipated expiration: 1935-08-13

Description

vv. Len/1B. ARCH CONSTRUCTION FOR FURNACES.

APPLICATION FILED OCT-24.1917.

Patented Aug. 13, 1918.

ZSHEETS-SHEET I.

To all 'whom #may concern:

WILLIAM LEMB, or BROOKLYN, New Yoan.

ARCH coNsTaUcTIoN Foa FUnNAcEs. l

maratea.

Specification of Letters Patent.

Patented Aug. 13, 191e.

Application led ctober724, 1917. Serial No. 198,347.

Be itknown' that I, WILLIAM LEMB, a citi'- zen of the United States, and a resident of Brooklyn, inthe county of Kings and State of New York, have invented certain new and useful Improvements in Arch Constructions for Furnaces, of which the following is a specification.

'llhe object of the present invention is to provide an improved 'construction for the 4arch or roof of a'furnace for boilers or combustion chambersv forl any desired purpose; wherein the blocks or bricksV forming the exposed portion of the arch or roof can be removed and readily replaced without tearing down the supporting members; and inl lwhich the' su porting members can be read.-

4 ily replaced yV theremoval of only a few t ll of the units vcomposingv the structure. A

further object of the/invention is` to cause it to be adapted yto either a flat arch or roof, or a curved one in the form of a true arch.

Another object of the invention is to pro-4 vide an improved form of end member for the arch or roof that comprises `one of the Vunits of the system, and is not [dependent upon 'special retaining means. lln the accompanying drawings showing` embodiments of my invention, Figure 1 is a section through the top wall of the combastion chamber.l Fig. 2 is atransverse section on the line 2-2 of Fig. 1. Fig. 3 is an end elevation of the parts shown in Fig. 1. Fig. 4 is a side view and Fig. 5 anend view of one'of the hangers. Y Fig. 6 is a *side view and Fig. 7 an end view of a spe FIF cial hanger. Fig. 8 shows`.one of the inter- -irnediatebloclrs and Fig. 9 shows an` end block. Fig. 10 is a modification showing a curved roof'for the formation. Fig. 11 is a fra( arched roof. Fig. 12 shows one of the intermediate blocks. and Fig. 13 shows an end block. Fig. Mfshowsone of the Vsupporting blocks'at. the ends of the arch. Fig. 15 shows the complementary block for Vthe latter; and Figs. 16 and 1i? show the hanger for this form.

lln the arrangement shown in Figs. 1-91.

l show a number of beams extending parall lel and sopor-tied at their ends by suitable Walls'l. s shown. ll provide a series of beams'l that have ledges .on their bottom. being substantially shaped and inverted.

ese are placed a comparatively small distance apartfor the pur f web entary View of two adjacent beams' the opposed ledges in adJacent beams to receive and supportl suitable hangers 19. These hangers arein the form of webs havose of permitting mg lugs projecting at the top to rest on the ledges of the beams as shown, ers are .also provided with means at the lower` portion for engagement with the blocks Vor bricks forming the top of the furnace chamber. prise a web portion 20 having a rib or bar 21' at the `top projecting. at each end, the being narrower than the distance apart of the beams, so that the hangerr may be and the) hang- As shown, the han ers coml A' passed up between the beams and then turned transversely thereto, to cause thev ex# tremities of 'the bars 21 to engage the ledges of the beams and support the hangers. As shown, the hangers also have a rib or bar 22 atthe lower 'cdgethat may correspond with the bars 21 and hence the hangers are reversible so that either end`v may engage .the beams to support the hangers.

The bricks that are 'snpported`solely by these hangers, have a suitabl" slot therein.

y rllhe brick 23`is shownas having a slot 24 I in its upper edge that is cylindrically enlarged at the bottom as shown at 25. .By this arrangement the brick can be caused to slide on the bar l 22 of the hanger, and be suspended thereby. because of the; bar

being slightly smaller-than the slot 24. yeti being of a size to slide in the enlarged portion 25. The hangers 19 are suspended from the beams a distance apart equal to the width of the bricks 23, and they are preferably arranged. in alinement across the beams. liy thismeans a row of the/ hangers extend in substantially the same vertical plane. and the bricks can be assembled and` removed by sliding them Alengthwise of the hanger until they Contact on their side-walls. lt will he observed from Fig. 2 that each Abrick will have. a slight rocking movement on the hanger by reason of the loose iit of the hanger bar in its slot. rFhis is to allow for expansion of the hangers and of the con .structionV generally. that tend to fracture the `brick. Furthermore, the cylindrical form of the projecting ends or bar 21 of the hanger ermital a sli ht rocking movement on' the accommodate for expansion and distortion of the supports.

At the ends of alining rows of bricks and eam. to furt er might otherwise l lll@ of hanger, shown-separately invFi'gsg 6 and 7 "This hanger has a hook vportion 26 at the upper'end, anda rib or bar 27 on the-lower y edge corresponding with the lower bar 22 of the hanger 19. The hook portion 26 restsv Fig. 1, that is engaged by the hook'portion and thereby j held'7 in place. i This ,hangen when placed on the beam 171 will abut thev adjacent hanger 19, and is adapted to re` ceivethe 4endblock 29,.,whose slot 30 doesl not1 extend -all the way .across the block, but/oni about one half'of the distance. The adgacentbrick 23 may receive the ex- .tremity'of the rib 27 of5thishanger as lshown and serves to stren-gthenthe supporting means. A t the front end of the furnace 2a anv L-beam 32.l Between a ,"lbeamv 31 -is shown, oppositewhich vis t ese rest a set of hangers 33 Asimilar to the hangers-19, that 'support loricks34 and 35 suitably slotted for this purpose. A hanger36 is' also pro- `v[vided similar to. thehanger shown in Fig.

are suspended from the slotted portions.

, fmerel! .thefend block can be removed and the a jacent bl'ockradvanced in place of the With anfarran'gement 735 6, of'hook formation, that is supported frbm @the beam31fhaving the rib on lits ledge for" 'l this purpose.

f ,This-hook hanger serves to port 'the block 37 It will? be 'observed a step formation, `but obviously any" shape- `-of brick could-' belemploye'd, as--long as-they hangers by proper "of this character,

should any vof the blocks become broken or* fall out, it is onlynecessary to removejthe blocks between such place and one end 'of the other blocksand. slide in a new block y when the other blocks' 'can 4be replaced.' relse l missingbldck, then the other yblocks are slid alongfand one new block inserted, and then the end block replaced; a Should a hanger 4become damagedor broken, it isonlynecessaryV to remove the blocks supported therebyv "andj lthen the hanger can`betu`rned`atl -an the adjacent hangers-or -any of the blocks.

viously a new hanger can besinserted in "the same manner without v'divsturblng anyv of rest onthe ledges of the bams,'and then l the .blocks slidey into vent .displacement of, t

positions. K

ow a very similar a1'- themin their proper fn Figs; lO-l,

lace, that. will pre e hangers, and hold beams 40 of T-shape, that arel curved or archedfromI end to' end, and reston supporting walls 41 and 42:. These .beams are placed` in a .parallel series,` and serve to su port hangers 43 similar to the hangers l9 described that rest on the projecting ledges of, the ad arranged in' alinement transversely of the beams, andJ serve to support blocks 44 -provided with slots 45therein enlarged atthe lower portions, as shownin Fig..12. These blocks have their contacting side facesinclined, that is, are of'wedge sha e, and the lower face is preferably slight y concave corresponding with the curvature of the arch.I The end blocks 46 may have their slots extending only part way across, and hook-shaped hangers'may be employed simi-l lar to those used with' the straight lform of furnace roof. i

jacent beams. @These hangers are At the sides of the arch, specialbriclfs may be provided to allow a'slight'rockng movement. As. shown, 'I provide a' divided block' having a section47 witha\convex-fa'ce 48.

pansion and contraction-of the arch. Withthis arch arrangement, anyof the blocks, or 'any ofthe hangerscan be replaced with the same facility as `with the other describedv arrangement. y J .f- It-'will be further observed that the blocks 23 and 29V are provided with tongues 38 and jgrooves. 39 on thecontacting side faces, that i) interlockand prevent assa e of smoke and gases between thebloc s. he wedge-shapev blocks 44 and 45 are Yalso provided with similar ltonguesl and grooves 52in their *side faces.

Having thus Iclaim .s:- lf'In a with apair' of opposed supporting walls, of VUaseries yof parallel spaced beams' fianged at the y.lovy'ferp'ed and extending between the f walls, setso hangers between the beams, each comprislng'a at web with a'rib on the described inventiomwhat y boi-ler furnace, the combination top and bottom edge projecting beyond the Aweb at the ends, said projecting ribs resting on the beam flanges w erebyithe hangersare suspended/in alining rows transverse to the beams, andblocks each having a slot in the upper Vedge tthat is enlarged in. thei block whereby1l each block' may slide on the lowervrib of the hanger and be suspended thereby y.

to form aclosed top Wall forlthe `furnace.'

Y a'ser of parallel spacedbea'ms flanged at 2. In a boiler furnace, the coinbinatiorn with a pair of opposed'supporting` walls, of

between the beams,

the lower edge and extending between the walls, sets of hangers between the beams,

each comprising a flat web with a cylindriv that is cylindrically enlarged in the block considerably larger than said hanger bar, whereby each block may slide on the lower bar of the hanger and be suspended thereby to form a closed top wall for the furnace, said block havinga swinging movement on the bar.

3. In a boiler furnace, the combination with a pair of opposed supporting walls, of a series of parallel spacedbeams flanged at the lower edge and extending between the walls, sets of hangers between the beams, each comprising a flat web with a rib on the top and Abottom edge projecting beyond the web at the ends, said projecting ribs resting on the beam flanges whereby the hangers are suspended in alining rows transverse to the beams, blocks each having a slot in the upper edge that is enlarged in the block whereby each block may slide on the lower rib of the hanger and be suspended thereby toform a closed wall for the furna"`c"`e, and a special hanger comprising a web having a hook portion at the top adapted to rest on the beam flange and a bar at the lower portion arranged to aline withl said hanger bars, -whereby to support a slotted block substantially as set forth.

4. In a boiler furnace, the combination with a pair of opposed supporting walls, of a series of spaced beams flanged at the lower edge and extending between the walls, in the form of parallel arches, setsof hangers each comprising a flat web with a rib on the top and bottom edge projecting beyond the web at the ends, ysaid projecting ribs resting on the beam flanges whereby the hangers are suspended in alining rows transverse to the beams, and wedgeshaped blocks each having a slot in the upper edge that is enlarged in the block wherey each block may slide on the lower rib of the hanger and be suspended thereby to form a closed arched top wall for the furnace.

5. ln a boiler furnace, the combination with a pair of opposed supporting walls, of

a series of'parallel spaced beams flanged at the lower edge and extending between the walls in the form of parallel arches, sets of hangers between the beams, each comprising a flat web with a cylindrically rounded b ar on the top and bottom edge projecting beyond the web at the ends, said projecting bars 4rest-ing on the beam flanges whereby the hangers are suspended in alining rows transverse to the beams, and wedge-shaped blocks each having a slot in the upper edge that is cylindrically enlarged in the block considerably larger than said hanger bar, whereby each block may slide on the lower bar of the hanger and be suspended thereby to form a closed arched top wall for the furnace, also whereby each block is arranged to swing on the bar.

6. ln a boiler furnace, the combination with a pair of opposed supporting walls, of a series of parallel spaced beams flanged at the lower edge and extending between thel walls, sets of hangers between the beams, each comprising a, flat web with a lug on the top edge projecting beyond the web at the ends, said projecting lugs rest-ing on the beam flanges whereby the hangers are suspended in alining rows transverse to the beams, lugs on the lower edges of the hangers, and blocks each having a ledge portion arranged to engage said latter lugs whereby blocks may be suspended on the lower lugs of the hanger in alining rows transverse to the beams to form a closed top wall for the furnace.

7. ltn a furnace arch construction, the combination with a series of wedge-shaped blocks arrangled in the form of an arch, and

supporting means for the extremities of the arch, of an end block for each end of the arch, that is composed of com lemental sections engaging on their radia faces of the sections, one section having a cylindrical engaging face, and the other section being similarly inwardly curved on its engaging face, whereby the sections may have a relative movement in a radial direction.

8. lin a furnace roof construction, the combination with supporting members, of hangers each provided with free overhanging end portions resting by rounded bottom faces on AVopposed supports respectively whereby each hanger can freely swing toeach side of its longitudinal axis and blocks detachably oarried by the hangers.

9. In a furnace roof construction, the combination with 'supporting members, of hangers each provided with free overhanging end portions resting by rounded bottom faces on opposed supports respectively whereby each hanger can freelyl swing to each side of its longitudinal axis, and blocks detachably carried by the hangers and having a free swinging movennt thereon transverse to 'the longitudinal axes of the h'anger and block. l Signed this 22nd day of October, 1917.

WILLIAM LEMB.

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