US1895720A - Boiler - Google Patents

Description

4 shawls-sheet 1 Girl wouah v 3 Willis J .la

Jan. 31, 1933.

W. J. MA AGIRL BOILER Filed NOV. 2S, 193C w. J. MA GIRL 1,895,720

BOILER Filed Nov. 2s, 1930A 4. sheets-sheet 4 Jan. 31, 1933.

ln/verge@ VVZIZZI'S Jjlfa Girl forming the boiler and its enclosure that they t Y on the lines IV Patented Jan. 31, 1933 UNITED STATES wILLIs J, MA GIRL, or BLooMINGToN, ILLINOIS, A'ssIerNoIzV `:|10 3P. H. MA GIItLroUN-DRY AND IURNAGE Womzs, or BLooMINGToN,ILLINoIs, A FIRM coMI'osED oIpJAIIEps n. MA GIRL, IDA DALToN, AND Geminiani: .JOHNSTON n i BOILB 5 Application mea November zafisio. 4sefiai'No.' manta This invention pertains to boilers and more particularly to those employed primarily for domestic purposes wherein gas or oilis employed as the fuel. The construction is such that the boiler may be used in connection with water, steam or vapor heating systems.

The main obj ect of the invention is to provide means, in a boiler of the water tube type, whereby the water is caused to circulate in such paths that no cross currents will be set up thus insuring a rapid circulation throughout the boiler.

A further object is to provide a sectional and light structure which facilitates ease of handling and the ready passage of the parts through a usual doorway.

A still further oblect 1s to provide a structure which affords ready accessibility to the tub whereby they may be removed and replaced with a minimum of trouble.

Another object resides in so Shaping and are of unit form whereby two or more units may be readily assembled and connected so as to produce a structure'which may be of the desired and necessary capacity. y

i With these and other objects and advanf tages, which will hereinafter appear in view, reference is made to the annexed drawings wherein- 1 Figure l is a perspective view of the boiler with the upper casing removed;

Figure 2, a vertical sectional view on the,

"une II-II of Figure a;

Figure 3,l a similar view on `the line III-III of Figure 2;

Figures 4 and 5, transverse sectionalviews IV and V--V respectively of Figure 2; and

Figure 6, a like view on the line VI--VI of Figure 3. l

In the drawings 1, 2, 3 and 4 denote rectangular metallic sections secured together at their adjacentedges to produce the square'v base of the boiler. The sections are each pro-V vided at their lower edge with a foot flange 5 and at their upper edge with an inwardly extending flange 6 the upper face whereof Vat its inner edge is countersunk (see Figures 2 *I4`urthermoregA each of said'sec'tions is provided with yinternally extending.,cros`s ribs, `as 7 which, Awhen :the sections Vare "assembled, form in effect continuous ribsb'etween which refractory blocks 81 are" placed, "forming a fire box; v Nlithin saidrbox'imaybe placed* a suitablel burner,` oil or* gas as desired', 1 the opening for the'feed pipe `of which may exvtend through any of Vthe base sections. s

v @ne of said sections, asa', will yhave a door orlreniovable section 9 associated therewith to affordaccess to-the burner. t-

v-Surmounting theiiregboxor base and restj-A ing upon` the inwardly :extending flange 6 at two upwardly extending `Vwater legs l1 and `12 whichl are connected at their upper ends by suitable nipples 13 and 114 respectively with The upperfahd' lower headers 10`jand v15 are also connected bya series of' coils '16 and 17, the ends of one set of coils, both' at the upperand lower' portions thereof, "being pupose KNwld-',icil will presently".

Vones'ide thereof is a 'base header `10`l`1avii1g Ythe upper header denoted generally'by l5. f

' slightly shorter than those ofA thev other coils," i

so fthat'they may lenter or be'connec'ted to`-thev A lower water boxor header 10 at -therear and front thereofl and'likewisejout of common vertical plane atthe upper end'wherethey communicate'withfthe upper header 15.1

vp-The header 15a provided wif-,ha ademe-x shapedmember 18 atitsfuppler side 'and an` off-take pipe 19"is"connectedfwith the upper portion thereof, 'V Y *A return' pipe header 10.

' As will be 'best 'seen upon l,reference to Fig'- ure V,3,the water` passes fromV the header 10 throughthevarious coils 16 and '17 'andupfwardly into theuppe'r chamber` or header'l, thence'f'outwardly through thelpipe 19 land back tothe pipe 20.1"" In case the ,boileriis' used as a steam generator thefwater level "will be maintained somewhatY abovefthe'outlets ofV the jupper end ofthefcoils-"and the water will then flow. fromfsaid upper ends laterally toV the connections '13 =and`l4 .and vdown the water legs 11 and :12 to the lower header 10. ,00-

In this' way itwill be seen that there is sub- 20 opens into `the y lowerV 1f Y Y n 1,895,720Y

stantially no interference with the flow of the water by setting up crosscurrents as vfre- '.quently occurs in manyv boiler constructions. Products of Vcombustion pass upwardly f 5 froml the chamberin which the coils are located through iues2l and 22 which pass up'- wardly throughtheheader 15 and discharge into a chamber 23 .from which there extends the ordinaryofftake flue orichim'ney pipe 24'. .The upper'header ,15" is supported. upon that side opposite the Water legs-11 and 12 f by posts or columns *25" and 26 (Figure .4) which are securedto the` header and to the furnace base in any suitable manner. fThe lower header, the water legs, land the upper header' are enclosed Within ametallicicasin 27madefup in sectional'form and provide.` upon its-'innery surfacev with. alayer of insulating material 28.- This enclosure, whichis `2Q @shearing hambeaisprovided with@ door,

as-29, (Fig-ure2) to afford access to the coils so thatE they maybe removed. and. replaced should occasion 'require..

, TheV boiler will,.of course,vb/e provided with suitable. gauges,vboth steam `and water level, y so that itmay be used eitherfas'a steam'boiler proper or as a-water heating boiler.' ,y Various units may be assembled ,side by sidejand with this in View the* lower. header v0 10 isprovidedwithopenings normallyclosed by. screw plugsBO. andl, either one of which may be removed when sections are placed ald-V jacent thereto andsuitable nipples employed to. bring about connection of. onelowerhol'd-y er with another. So too the upper. headerl Vmayw haveY anopening formed therein normally closed by ascrew plug `32j N Y l lWhat is clalmedisa.

Inl a-boiler, the. combination'of a. base.;

40 a heatingy chamber mounted thereon a head- 'er extending along one sidezonly'l of the-base y Within said chamber, saidheader having., a lwaterleg extending upwardly from each end Y ofsaid header; an upper header connected to i i 45 andeincommunicationwith the watjenlegs,`

said uppergheader being of such" dimensions. as to substantially equal-the transverse Vdimensions ofthe heating chamber and. clos.- l ing the .upper portionthereof and: said ,head1 59' er being provided with at least one flueexV tending therethrough for the .passage of combustion gases, there being agvented chamber formed above the upper header fori the reception otthe'combustiongase's; a pair. of

.55 posts .extendingupwardly -from the baseto the side of thel upper header oppositethewater. legs andforming with saidlegslthesuppor-t rfor, said .upperheader; and al series.. of coils Within saidv heating. chamber. connecting 60' theheaders.. Y `Y name toi this. speci-ficationq/j. L y y MALGrIRL.vv

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