US1999993A - Distributor head for stokers - Google Patents

Description

A ril 30, 1935. A. M. HUNT DISTRIBUTOR HEAD FOR STOKERS Filed Nov. 11, 1930 3 Sheets-Sheet 1 ATTORNEY.

April 30, 1935. A. M. HUNT DISTRIBUTOR HEAD FOR STOKERS s She ets-Sheet 2 Filed NOV. 11, 1930 IN V EN TOR A TTORNEY.

rl lllllfl/IA r!!! f April 30, 1935. A. M. Hum

DISTRIBUTOR HEAD FOR STOKERS Filed Nov. 11, 1930 5 Sheets-Sheet 3 III/III 5 H I I 0 1 m m I 0 m a a m m 1 m m [4471/1 w. w M 1 a g z A TTORNEY.

25 the invention in position therein; I

Patented Apr. 30, 19 35 7 5 15999993 I m's'rnmu'ron iron stroK ns' Andrew M. Hunt, Berkeley, Calif; Orocker I irst I 'FederaLTrust. Company, executor of said An--- drew Hunt, deceasedgzassignor to The Standard vStoker Company, Incorporated, a

- corporation -off-Delaware 1;.

Application November 11, 1930 Serial No. "494',829

This invention relates to'stokersof the scatter feed type, and more parti'cularlyto that type I wherein the fuel is introduced through an opening'in the rear wall 'ofthe firebox and there projected over the fire by means of jetsof presthat. is cheap to manufacture, simple in construc- It isan object of the invention to provide, in a distributing mechanism of stokers of'the type described, a novel sectional distributor head having that portion thereofin'which the jetopeningssare formed or the hood portion as a separable member from the main body of the distributor head.

Anotherobject of theinvention is the provision of a new :and improved distributor head tion, and one in which the hood portion maybe readily and easily removed or replaced for-purposes of repair or-removing clogs.

Other .and further objects and advantages of the-invention will'appear from the'foll'owing-descriptionttaken in connection with the accom panying drawings, in which.

- 1.Fig.1 isa .verticaltcentral section of a'portion of a locomotive and a stoker therefor, showing Fig. .2 is aplan section on line:-2--2 of Fig. 1; Fig. 3 isv an isometric view of the lower or main body section; of the distributor .-.head;

7 Fig. '4 is an isometric view of theupper'or hood section of the distributor head; 7 V

Fig. 5..is a section onthe line-5.5-of Fig.1; Fig.5 is a central verticallongitudinal section through a portion of a locomotive, showinga modifiediform of the invention in place; and v Figfll'is a plan view on thegline 1--l of Fig.6..

Referring now tothe drawings,- the reference character I0 designates-a locomotive having the backhead ll provided with;thefiredooropening l2. The. structure thus far described may be of the usualorany' wellnknown construction,.and further descriptionor illustration is unnecessary.

Asuitablestoker jl3is provided for supplying fuel to the locomotive. The stoker comprises a riser. conduit M which constitutes the forward section of a series of conduits leading from a suitable source of fuel supply such as'a locomotive tender. The riser conduit. 14 extends upwardly and is curved forwardly for delivering the fuel to the opening l2 onto a distributor plate l5, and is provided with a movable cover section l6 hinged at its .upper end as at I! and held in closed position by the latch 18, whereby access. may be had to the interior of the riser conduit.-

The distributor plate may be of any type suitable' for spreading fuel over-{the firebox, that shownin the figures, being the preferred form.

l4 and ,forms an extended floor portion there-' for. The forward side portions of the plate vl5 areprovided with thepocketsiiLQila, and the J shaped deflecting ribs 2|, Zia, which serve to receiveand direct aportion of the fuel to the rear corners'ofthefirebox.

:Rearwardly of, he distributorplate l5 and 1 9 The-plate l5 is detachablysecured at its rear 1 ward face'to the upright wall 19 of the conduitvertically disposed in theupright wall IQ of the] arrangedto receive pressure fluid 'such as steam:

.The distributor-head22;isprovided with a plurality cfsteam chambers23, from the upper end of eachof which jet openingsv "24 in {horizontal alignmentiar'e adapted to direct blasts'of pres surefluid across the upper surface of the plate 15 for forcing the fuel to 'all'parts of thefil'ebox I asrapidly as His delivered; onto the -platefi5."

Each chamber 23. is provided with "a separate pipe 25 for'supp1ying steam thereto.

My invention contemplates theuse of a novel distributor headcomprisinga main body or lower portion 26 and a separable hood orupper portion 21." Itfrequentlyhappen's that the jet openings conduit M is theplate-like distributor head-22;

become clogged and it is usual to remove theclogs 7 by insertinga piece of .wire into thejet openings.

'Some of the .dirt' and clogging matter will be forced intojfthe chambers-23, and intime 'it'is necessary to entirely remove the distributor head V and disconnect the steamsupplylpipe fis 'in' order to remove the accumulation of dirt anddust in the chambers of the distributorhead. This isa troublesome and time consuming job 'causing in convenience and delay'. In my improved ,dis tributor head= ,construction the body portion' of the "distributor head and steam supply pipes are not at all. disturbed and ,dirt' canbe conveniently and quicklyremoved from'the steam chambers by removing the easily accessiblehood portionof. j, V

the distributor head and blowing out the'dirt by means of the blast from the steam supply pipes 25. i The steam issuing from the jets 24Iwi1l also in time out or wear away the sidesof the g'e't open- 7 ing and in prior constructions it has been necessary to remove'and replace the entire distributor head. My invention necessitates the replace ment only of the hood or upperp ortion of the dis-'. 7

tributor head, saving time, trouble andmoney andmaking repairs and replacements possible without disarranging or disturbing any part of head. The hood or upper portion 21 of the distributor head is securely attached to the conduit |4 by headed screws 30, 30a through its attache ing arms or lugs 3|, 3m extendinglaterally from the upright side walls of the distributorfhead.

Thehood portion 2'! and the main body .portion' 26 of the distributor head are fitted together so that their upright side walls exactly register, and are, securely and tightly attached to each other by the headed screws 32, 32a through the drilled holes 33, 33a. and the 36, 360., respectively. A soft copper or other suitablegasket 31 is placed between the contacting surfacesofthe hood and main body portions of the distributor head .to insu'rea tight connection therebetween. v I

. Themain body or lower portion of the distributor'head extends upwardly a distance slightly above thefloor of the'conduit M to permit easy removal and replacementof the hood portion and to permit proper adjustment and tightening thereof. The extension of the main body of the distributor head above thefioor of the conduit 7 also prevents particles of coal and coal dust frombeing swept into the chambers 23 during removal or replacement of the hood portion of the dis-- tributor head. 1

Figs. 6 and 'Iillustrate a modified form of the invention wherein the distributor headjis provided with a hood 38 having alip 33 formed integral therewith and extending forwardly therefrom. The lip 39 has a tendency tofiatten the blast of pressure fluidissuing'from the jet open ings 24 and cooperates therewith to form a fiat fan-shaped pressure fluid blast. This construction reduces the arc of the aerial path of the fuel andreduces' the amount .offuel ordinarilyes caping over the fireboxarch unconsumed. Fuel delivered through the riserconduit I4" is urged across the lip'39 and is dropped onto the, distributor'plate lisomewhat in advance of the jet openings 24, thereby minimizing clogging of the openings which occurs from tiine totime when the fuel is perinitted to drop onto the distributor plate'immediately in front of the jet openings. "I claim:

l. Ina Stoker, a fuel distributor plate,"a. con duit fordelivering solid fuel to said distributor plate having a" substantially horizontal discharge mouth portion, a sectionaljpressure fluid distributor'h'ead, comprising a plate-like body, portion and'a" hood portion, said body portion being inserted inthe floor of the'horizontal mouth portion rearward of said distributor plateand said tapped openings 34, 34a .of the registering chamber walls 35, 35a and hood portion surmounting said body portion and extending above the top surface of the floor of said horizontal mouth portion, said hood portion having a row of jet openings extending transversely of said conduit mouth portion and arranged to issue pressure'fiuid' blasts over the top surface of said plate, and a lip formed with and extending forwardly from said hood portion immediately above and extending beyond said jet openings and overlying said distributor plate.

2, As a new article of manufacture, a discharge "section of aqsectiohal pressure fluid distributor headcomprising a-lflat front face, a flat base substantially at right angles thereto, an arcuate roof joining the remote edges of said front face and said base,said"discharge section in cross sec- :tion perpendicular to 'said base and front face beingapproximately quarter round, said discharge section being provided with passages extending upwardly through said base and terminating short of said arcuate roof, the front face of said discharge section having a row of dis; charge orifices disposed .at approximate 1 right angles to said passages, each opening at one end into one of said passages and a lip formed, with and extending forwardly at'substantially'a right angle from thefront face of said discharge section immediately above and substantially parallel with said row of orifices.

In astoker, a fuel distributor plate, a conduit for delivering fuel thereto having a sub stantially horizontal mouth portion, a sectional pressure fluid distributor head comprising a pressure fluid receiving section and a pressure fluid discharge section, said receiving section being 'inserted in the floor of said horizontal mouth por tion and being provided with partition walls'to form a plurality'of passages therein open at their respective opposite ends, 'said discharge section surmounting said receiving section and extending above the topsurface of the fioorof-said mouth portion, said discharge section being pr0-' videdwith partition walls to form'a plurality of passages therein, said first named walls and passages registering with said second named walls and passages to form continuous passages and walls in said "receiving and said discharge sec-- tions, said discharge section having a plurality of spaced horizontally aligned jet openings therein communicating with the passages 'in said discharge" section forissuing pressure fluid blasts *acrossthe top surface of saidplate, certain of the. partition walls of said receiving section hav-' 1 ing threaded openings therein, the partition walls of saiddischargesection having openings extending therethrough and registering. with said threaded openings, and means extending through the openings in the partition walls of said discharge section arranged to securely fasten said discharge section to said receiving section.

: :YANDREW M; HUNT.

Images