US1788559A

US1788559A - Locomotive-smoke-box structure

Info

Publication number: US1788559A
Application number: US13242A
Authority: US
Inventors: William L Bean
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-03-05
Filing date: 1925-03-05
Publication date: 1931-01-13
Anticipated expiration: 1948-01-13

Description

Jan. 13, 1931. W. L. BEAN LOCOMOTIVE SMOKE BOX STRUCTURE Filed March 5, 1925 3 Sheets-Sheet 1 v a o e W i mm mL. M mw fh la, im mm w\|\ `m5 5./ SAQ 12mm, @Qxv/ H/ @www bh im rm \w .R y a NSN Jan. 13, 1931. w. i.. BEAN 1,788,559

LocoMoTIvE SMOKE 150x STRUCTURE Filed'wlaron 5 1925 5 Sheets-sheet' 2 Jan. 13, 1931. w. l.. BEAN LOCOMOTIVE SMOKE BOX STR'UCTUR Filed March 5l 1925 :s sheets-sheet 3 Invenov':

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WM. M f/fys,

Patented Jan. 13, 1931 UNrTED .SITA

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` WILLIAM'LQBEAN, or wnsrHavana3 Connncfrrcufr-l `A Y LoConoTIvE- snoxnnoir' STRUCTURE I;

C Application llledrllarch 57 1925. j Serial No. 13,242.

' This invention relates Ato v-l o'cornotive smoke-box str-ncturefa'having many features of novelty relating .tothe draft appliances,

including the detlectors .and the `sparknet` `s ting and to "their means ofattachment to the smoke box; p C

The invention will be best yunderstoodby reference to the following description, when taken in connection with the accompanying lo drawings of one specilic embodiment theresV eeticvfl taken on the line 22ofFigure1- Figures 3, 4, 56, i7 `8 and 9 are sections taken on the corresponding section lines of Figure 2.

Figure l0 isa view of the inside `ofthe smoke-box wall illustrating the` supports for the parts mounted thereon. p v

Figure ll is a section illustrating the parts mounted on the smoke-box wall and showing the sameindependently of, their mounting. l

horizontal deilector plates.

i Referring `.to thejdrawings, andv to theV presents a support for the smokebox 21 the' latter in the present example being a castlng, as distinguished from a structure built up of sheet metalV and other` fabricatedV shapes. The smoke-box presents an. opening 27 for an exhaust p1pe128.v Y

The `delector, which deects the gases in a downward direction and compels them to flow first to the forward end of the smokebox, and thence in an upward and rearward direction through the spark .netting into the path of the exhaust steam toward the Figure 12 is'a top view illustrating thev C stack, will now bedescribed, reference being,

had at first to Fig. vl1. The ldeflector comprises a rear portion designatedv generally bythe numeral 52,V andV a lower portion designated generally by the .numeralg53, each of which is composed of a plurality ofsections or plates now to be described, reference being had to Fig. 2. The rear` portioncomprises upper left and right plates 54 and 54', lower left. and

right plates

55 and 55, an ,upper inspection plate 56, and a lowervinspection plate 57. The

plates

54 and 54 have overlapping marginal portions Y 58and-59 (see Fig. 3), and herein the Amarv ginal portion58 isotfset to provide a recess 60, which receives the marginal'portion 59 thus M providingv al rjoint which prevents Sparks from passing through,v:even though the plates should become warped to vquite an'eXtent. Similarly, the plates 55 land 55A q are vprovidedgwith overlapping marginal portions 61`and62 (see Fig..4), the former presenting a recess 63 which receives the margin `62. -The

plates

54 and 55 have tongue and groove connection with each other, the plate 54 to this end having a thickened marginal portion 64, presenting agroove 65, which receives a marginal :portion 66 of the plate 55. The plates 54, vand 55 have similar tongue and groove connection `with each other (see Fig.' 6), the plates` 54 to this Vend having a thickened p portion 64 presenting a groove65, which receives ya marginal l portion `66". of the plateY 55. i `The

plates

54, and 55 are joined to each other about a pipe, herein a superheater pipe 67, and the plates 54. and 5,4-l vare joined to eachother about another pipe, herein a superheater pipe 67', and to prevent thel leakage of gases at these joints, there are provided packingsone of'w'hich is illustratedin Fig` 8. It willbe remembered that the plate "54is provided. with a thick-` ened marginal portion 64, which presents a groove 65, utilized in joining-the plates 54V andl 55 together. 'This thickened vportion and its groove are continued in a half circle about the pipe -67 (see Fig. 2),- andthere is provided a packing 68 of appropriate fire-resisting..material, such as asbestos., which is received in this groove and extendstherebeyond into engagement with the periphery of thepipe (see Fig. 8). The plate 55has a similar thickened marginal-portion 69 (see Fig. 2), having a groove 70 to receive the packing 68 which is in the form of a ring about the pipe. A like packing con-Y struction isemployed between the plates 54', and 55' and the pipe 67'. .v

VThe upper inspectionplate 56 has a marginal portion 71, which, 'as shown in Fig. 11, is offset to provide alrecess 72'for corresponding marginal portions of the adjacent plates 54 and 54', and the Vjoint thus presented prevents the passage of sparksthrough the deiiector, even though i a' considerable extent.

the plates should become warped to quite Similarly, the larger inspection plate 57 has a marginal portion 73, which as shown in Fig. 18 is offset vto provider a recess 74 which receivesthe adjacent marginal portions of the plates andS55'. `A. vtongue and groove connectionis provided between 'the inspection plate 57 and the plates 54 and 54' by contin-l uing the thickened Vportion '64 and 64' and their grooves and 65'. Tt should now be evident, by referenceto Fig. 11, that theV inspection plate 57 can be slid in an upward direction into the described groove in la slightlyinclined position, and its lower edge theny swung rearwardly'into place. VIt isk conveniently secured in place by a series of fastening element-s, one of which is illustrated inFig. 9. In theV present example, `this fastening element is a pin 75, which is permanently secured to the plate 55 or 55', as

thecase maybe, as by having a reduced@ portion 7 6 which extends Vthrough the plate, andis riveted or headed over at 77. The body of the pin extends through an opening-78 provided in the offset marginal portion 73 of theV plate 57, and `this body portion, where it extends through theplate,

:receives a washer 79 conveniently held in place Yby a splitlocking key 80 in an elongated slot i 81 provided in theY pin. Like fastening elements are employed for the upper. inspection plate. The inspection plates vmay be `provided with

appropriate handles

82 and 83, respectively V(see Fig.

2), andas theplates 55 and 55' are rather large and heavy, they may be provided with similar handles 84 and 84'.

The lower portion 53 of the defiector will nowl be described, reference being had .to

lso

Fig. 11. Here, the deiiectorpextends about the vexhaust and live steam pipes, and to enable the deflector to be `fitted about these pipes, it comprises two plates ,85 and 86 shown in plan inFig. 12. The vrear plate 85 has its rear marginal portion'received iny grooves 87' and 87'- presented by thickened marginal portions 88 and 88' formed on the plates 55 and 55', respectively; 'At` this point, it may be mentioned that the corner of the defiector (see Figfll) is preferably rounded on both sides. This formprevents eddy currents and improves the draft by promoting a smoother flow of gases below, as well as above theY deflector. The rear plate 85 is conveniently putin place 4by being set at first in an inclined position, represented iny dotted lines in Fig. 11,I to enable it to ,clear the .live steam pipes... `It iswthen lowered and'swung into position with its rear marginal portion in the groove. The plates 85-and786 likewise have tongue and groove connection Vwith leach other, the plate *85 to' this end having a thickened'marginal poi'- Vtion 89 hprovided with a groove 90, which 38,. The packing prevents leakage'and also prevents `wear of the parts due to one rubf bing .against ytheV other'.v L "Where lthe plates 85l and4 86 are 'disposed about the exhaust pipe 28, they presentan opening 95, which receives the exhaust pipe, andl'above this opening is provided ausualfexhaust nozzle 96, whichris secured to the plates, as well as to the .exhaust pipe, -bygbolts 97. In this way, the plates are securely united with each otherand with the exhaust pipe, theV latter jtherefore'serving as a pedestal-to supporty the plates. Y

Theremaining supports for the deflector will now be described, reference being had at first'to Fig. V10'.` The'

several plates

54, 54', 55, 55', 56 and ,57, which compose thel deiector rear portion when' iitted together, have a circular marginal portion, which has tongueand'groove connection vviththe circumferential wall ofthe smoke-box, `as by providing the., latterV with an integrally '1 formed projection 98 '(see Figfl), which presents a groove 99 in which said marginal portion isl received.' This'interengageinent of the deflector and the. smoke-box. enables the several vplates composing the deflector to be put in place and securely held," without the necessity of employing any fastening. elements such as bolts, '.or the like. This isa matter of considerable practical importancein the maintenance oflocomotives, begV l causefwhere bolts are used, inasmuch as. theyare exposed to thek abrasive andcorrosivepaction ofthe products of combustion, they become corroded rapidly, and when it becomes necessary to remove the deflector' for the purpose of obtaining access to the lues andother parts, it usually becomes necessary to destroy the bolts by cutting them olf. With the described construction, the removal of the deflector plates can be accomplished in a small fraction of the time usually consumed in removing the detlectorVV plates ot all former constructions.

Referring now to Fig. 2, the several'plates which compose the rear portion of the delector are put in place by lirst introducing the lower left-hand plate 55, then the lower vented by the provision of stops, herein lugs 101' formed as integral projections from the circumferential wall of the smoke-bok casting. The lower frontplate 86 is conven-v iently supported by having its end received in grooves 102' presented by projections 108', herein formed as integral parts of the smokeboX casting. The plate 86 is simply pushed horizontally into place, andv is secured in place by the previously described bolts 97, which secure the exhaust nozzle to the exhaust pipe.

Herein the plate 86 has'a depending marginal portion 104C, to which a damper plate 105 is secured, as by bolts 106. The ends of the damper plate are conveniently supported by being received in grooves 108',` herein formed in projections 109', formed as integral parts of the smoke-'box casting. In the present example, the `projections 103' and 109' are connected to each other-'by .projections 110', formedas integral parts of the smoke-box, and these projections prevent the passage of sparks which might otherwise occur at these points. At the rear of the described deflector, there is another defiector comprising a plate 111 (see Fig. 1), whose ends are received in grooves 112' presented by projections 113', herein formed as integral parts otI the smoke-box casting. It should be understood, of course, that, as is usual in locomotive practice, the rear edge of this plate is below the lowermost row off superheater iues. Forward of this de- VflectorV plate is an adjustable damper plate plate 86. form a groovev VVfor the spark/ 1,625,784,1,63939a 1,647,253@ issued April.

26", 1-9'27,"August 23,1927', and November 1. 1927, respectively, on applications divided `from thish application, asl originally tiled. -I

alsoareferto my copendng appliaction'Seas originally nied. c

\ 1. Inarlfocomotive smoke-box structure',

lrial No. 99,417, divided from this application'.

smoke-box wall'and: a deiector Vextending transversely thereof, said wallV and Vdeflector having tongue and groove connection withv eachother, said. deilector comprising a plurality ot plates lying in the' same general y planeandfhaving. tongue and groove connec= tion'fwlith each other, at least one of said plates having its edges engaging the edges of adjacent plates and. servingv to hold the latter `in assembled relation with saidwall.

2. In a locomotive smoke-box structure, a4

CTX

yplurality of plates lying in the same general plane and having tongue and groove connection with each other, at least one of said plates being a key plate and having an end and two side edges engaging adjacent plates to hold the same in assembled relation with each other and with said wall, said key plate being slidable in a direction away from the plate engaged by said end edge to provide transversely thereof, said wall and deflector having tongue and groove connection `with each-other, said deflector comprising a plurality of plates lying in the same general plane and having tongue and groove connection with each other, at least one of said plates having its edges engaging the edges of adjacent plates to support said plates in assembled relation to each other andA said wall.

4. In a locomotive smoke-box structure, a circumferential wall having an inwardly extending projection following the curvature of the wall and provided with an inwardly openingrgroove, and a delector extending transversely of said wall and having a mar ginal portion received in said groove, said delector comprising a plurality of plates lying in the same general plane, atleast one Vof which plates is provided with a groove and at leastvone other of which plates has a portion received in said grooves Vfor holding said plates in assembled relation with each other andwith said wall;

5.. In a locomotive smoke-box structure, a

Eri

plurality of defiector-plates arranged` at an' Y angle to each other, and a curved deflector plate connecting saidrst mentioned angularly disposed plates, the adjacent edges of said rst mentioned angularly disposed l plates and the edges of said curved connecting plate being provided with grooved portions for sliding engagement withf-eachV other.

6. In a locomotive smoke-box structure a cylindrical wall having an inwardly radially extending rib following the curvature of the wall and provided with an inwardly opening groove,' and a plurality of flat plates l movable transversely of said wall into and out of said Vgroove for assembly with and removal from said wall, said sections having interengaging edges Jfor holding saidsections in assembled relation with said 'wall and "with each other to form a spark vde-A flector. extending across said box.

In testimony whereof, I have signed my name to this specification.

WILLIAM L. BEAN.

ifrearsse.