US1355095A

US1355095A - kohout

Info

Publication number: US1355095A
Authority: US
Publication date: 1920-10-05
Anticipated expiration: 1937-10-05

Description

G. A. KUHOUT.

. STOKER.

APPLICATION FxLED MM2?, ma. 1,355,095.

Patnted Oct. 5, 1920.

4 EETS-SHEET I G. A. KOHOUT.

SUKER.

APPLmATmN man MAY 21.3913.

Patented Oct. 5, 1920.

4 SHEETS-SHEET 3 MWI/2611;

lnormal plane of the Stoker surface. Vclinkers and ashes thus'tumble over onto be more clearly ap arent hereinafter. The Stoker bar sections llave wider and narrower portions, as shown, so that these stagered protruding portions may intermes as shownmore clearly in Fig. 2 to provide a smooth perforated aix-cooled upper surface. The portions are made wider and narrower so that when the Stoker bar sections are tilted the wider portions will project above the narrower portions, as is shown in Fi?. 8, and will loosen and break up any clincers and stir .up the ashes. These wider and narrower ortions also coperate to advance the fuel a ong the bed and spread it on the bed to fill up any blow holes. Normally the top surfaces of the sections lie in the come plane. This plane may be horizontal as shown in Fig. 1, or downwardly inclined town-rd the rear as is usual in furnaces of this kind. When the stolzer bars are tilted, the wider portions a., (see Fig. 2) proj ecting toward the front portion of the furnace, are raised above and the rearwardly extending portions b are lowered below the plane of the grate as shown in Fig. 8 and in dotted lines in Fig. -1. When thus tilted, the portions a break up any clinkers that may have formed, and chnkers and ashes fall intoy the `Vsha ed spaces between the aprons 2G and 27 an thcadjacent face portions 25. AThere will be narrow openings at the bottom ofthe V-shaped spaces through which line ashes will fall, but itis the purpose of this stolzer not to drop the ashes'through between the bars. The spaces between the bare are uniform at all times whether the bars are in normal position or are tilted as shown in Fig. 8. The space also remains uniform during the tilting of the bars. The spaces between the bars are np roximatcly oucfourth of an inch in actualJprn-ctca. When the Stoker bar sections are returned to normal position, the portions b return along the aprons 27 and raise any clnkers ormshes l-:etween the faces 25 and the aprons' 27 tr) thle .L uc i the' portions a, and in the `next operation of the Stoker are moved upwardly and forwardly by the portions a.; It is this tumbling over tothe sides that causes the fuel p bed tobeleveled and all hlow holes to he filled up. Duringthese-movements of 'the Stoker bars, the aprons 26` closely follow the edgesO and prevent everything but a little e ashes from falling through. In this rnalnner the fuel is worked rearward in the furnace and the -clinkerscan be discharged at the end section 42. 'The portions of the sections of smaller width have thedependingt aprons 2T; The suiker-bar 4shown als the le in 1 and 8 has a straight ed e Vadjacent te door 13, `rovidecl with a ce pen apron 26". tric with the pivot 17 in order that the 's apron is conceit l apron may at all times lie close to the fon ward fixed edge of the iurnnce to promu undue dropping through of the fuel. 'llu` aprons 26 copernte with side walls 2S on both sides thereof to form a sort of pocket. there being an end wall 2l) at thc extremities of. the sections. The stoken' bur sccl ions nrc open at the bottom, as clearly apparent, 0:;- cepting for the partial closure due to lluaprons 26 and 2. The trnnnions 1T of flul sections are carried in structures more clearly shown in Figs. 3, l, 5 :und 7. Thorlo structures comprise the side frames llll suitably mounted 1n place which have ut ihr-iltop the pillow blocks 3l. These. pillow blocks 31 receive thc trunuions ll'. .In or der to hold the trunnious in position so that they cannot be lifted out upwardly. vl pro vide lugs 32, which lugs copcrul'e will;

cover or lockingif blocks or clips lill, more clearly Shown. in Fig. 5. 'lhese blocks or clips 33 have openings 3l to encircle rho trnnnions and have cutmvay port-ions $5. which co crate with the lugs 32. thus l l prevent li ing the Stoker lmr sections out: of position when the cover blocks or clips 33 are mounted in pla-tc. Fingers 36 :1ro pio vided which limit the inward movenwzll o.' the cover blocks or clips 33, these lingers :lli coming into position below the ridge z-l'T (F' 4). The upper portions of the blocks or ips 33 areuted by having the groom,- or openings 38, as clearly apparent from 5. he positions of the trunnons l? relative to the Stoker bnr sections is secu more clearl from au inspection ol' Fig. s

The cover locks or clips 325 :nro provenir-l from moving away from tho frames: Illl lo.

bars 50 on each side of the grutto. Those bars are provided with lugs l'll ou ciu-h sllv, which lugs engage the lnnsoulv S2 ou ouv side and the cover blocks or clips J-ll ou lla other. The ends of the born rust upon ilu' end supports for tho. stoken' frame shown in 1. When it is desired to remore tho Stoker bar sections, the bars .ful are lrsli moved by lifting them vertically. 'The rover clips 33 maj1 be moved laterally of the grote so as to dsengage the 1ugsl2 and than ll'tol vertically. During the lateral movement of the cover blocks or clips 33. the pivots disengage the o Jenings 34, us will he upprnrnl. The removu of the cover blocks or clips leaves the Stoker har sections freu to h:- liilml out of the blocks 31. The curvature given to the aprons 26 und 2 is such that the uxs of Vthe trunnion 17 is wccntrcnlly located relatively to the center point ol' the cin-lc arming the aprons 26 :mrl 9.?. Tn this manner I am enabled to maintain llw odlfes 39 of the wider portions o the stolufr lm:- sections closely contigijuous to the apron t?? flux-ing the time that the sections are. more] from the position shown in Fie. 1 in l'ull lines to the position shown in Fig. 8. Simibut burnt out ash may fall downwardly hetween the sections in about the same manner that this ash would fall -through the openings 41, provided in the face platesof the sections.

At the extreme right hand section of Fig. 1, I show an end grate section 42 which is stationary, having openings 41 however. similar tol the openings provided `inV the other sections, and this end section 42 has a rounded inner face 43 so that rthe immediately adjoining stoker bar seetionsmaj,y he tilted properly.Y without providing a large opening between the stoker har section and this yend section`42 at such times when the Stoker har sections are not dumped farther than a predetermined amount, which in the construction herein shown. is approximately 450. If the sections are dumped to a position of 900, as shown in Fig. Si, or in' Fig. 1 in dotted lines, then quite a substantial opening is occasioned between the end secu tion 4Q and its immediately adjoining mov4 ahle Stoker har section. The clinkers and ash are dumped therethrough into the ash pit. Normally, when shaking. the lever 2l is operated to tilt the stoker hars angularlv through a distance of about 450.

it will he understood. of course, that the stoker har sections are to be tilted onlyr in a clockwise direction from the position the),v occup)1 in Fig. 1 in full lines. As these sections during the shaking operation are ltilted 45. the action of each section is to pile up the fuel upon the section immediately to the right (Fig. l). In this way `the fuel is constantly moved from left to right as the lever 491 isV moved hack and forth. The result of 'this actuation is that the green fuel which is thrown in through the firing door 13 is thrown upon the sections farthest to the left. Then this green fuel may1 he coked. the products of combustion passing over the hot fuel hed farthcr to the right. there to he consumed liefore passing to the stack. A suhsequent actuation of the lever 2l causes a movement of the entire fuel hed to the right. thus providing sparc for additional green fuel.

'hencver it is desired to remove the clinkcrs or other residue which has not passt-d through the stoker har sections, tia-n the lcvcr 91Y is actuated to tilt the sections more than 45g so that an opening is provided at the extreme right hand portion of thegrate inmiediatelv to the left of the end section. 4&2. If this dumping has heen sufficient to permit an open space on top of the movahle section at the extreme right (Fig. l). then thereafter the lever 2i is actuated to tilt the stoker har sections a numher ot' times through an angle of 45, whereby the fuel is moved progressively to the right to cover any such open space.

It will he noted that the arrangement is such that a conjoint movement of all of the sections causes this progressive movement of the fnel.- Not onlyv does the shaking of the stoker sections cause a progressive movement of the fuel toward the rear of the fui nace. hut il. also levels the fuel hed. thus insuring a more cfiicient combustion of the fuel. l

ln Fig. l()` I show a modified forni of end section which is to take thc place of the end section 42, when desired. and this end section hl is i'iivotally mounted` as shown at 45 so that it may be tilted when the link this actuated hack and forth. as will he readilyv apparent. l find that under certain circumstaiu-es it is hctter to actually tilt the end section than to depend merel)Y on the opening between the last movable stolter 95 section. such as the section 42.

From what has heen described the nature of lmy invention will he readilyY clear to those skilled in. the art, and it will also he apparent that many modifications may he made within the scope of the appended claims.

l'laving. howcver. thus described one forni which niv invention mayv take. what l claim as new and desire to secure hv Letters `Patent is:

1. A stokor having a plurality of individual interlneshing pivoted sections arranged in a series and having their top surfaces arranged suhstantially in a plane. means for 11.0 conjointly tilting all of said sections. cach section having means adapted when said seetion is tilted to deposit fuel upon the neXt succeeding section ofthe series, and means provided upon each section.eccentric to the pivot thereof for preventing dumping of the fuel through adjoining tilted grate sections.

2. A stoker having a pluralitv of individual sections arranged in a series and having their top surfaces arranged suhstanlially in a plane, means for simultaneously tilting all of said sections, each section having projecting portions which intermesh with por tions of adjoining sections and means adapted when said section is tilted to deposit fuel upon the next succeeding section of the series. and non-concentric aprons on each section for preventing dumping of thc fuel through adjoining tilted grate sta-tions.

.3. .fi Stoker having a plurality of individual intermeshing sections arranged in a. serles and having thelr top surfaces arranged substantiallj7 in a plane, means for conjointl'v tilting all of said sections` each seetion having means adaptedwhen `said section is tilted to deposit fuel. upon the next succeeding section ot the series, means provided upon each section for preventing dumping of the fuel through adjoining tilted grate sections, and a` normally stationary end section having means for preventing dumping' of the fuel between said end sec'- tion and its adjoining movable section when said movable section is tilted a given amount, but permitting dumping ot' the fuel when said adjoining movable section is tilted a given amount.

4. A stoker having a plurality of individual sections Yarranged in a series. and having their top surfaces arranged substantially in a plane. means for simultaneouslv tilting all of said sections, each section having n lms adapted when said section tilted te deposit fuel rearwardly and sidewardly upon the next succeeding section of the series, means on each section for preventing dumping of the fuel through adjoining tilted grate sections. and a normally stationary end section having means for preventing dumping of the fuel between said end section and its adjoining movable see-r tion when said movable section is tilted a given amount. but permitting dumpingof the fuel when said adjoining movable section is tilted a given amount.

A Stoker having a plurality of individual sections arranged in a series. and having their top surfaces arrangedsubstantialhv in 'a plane. means for eonjointljv tilting all ot said sections. adapted when said section is tilted to deposit fuel upon the next succeeding section ot' the series, means provided upon each section for preventing dumping ot the fuel through adjoining tilted grate sections, and a normallyv stationary end section having means for preventing dumping of the fuel between said end section and its adjoining movable section when said movable section is tilted a given amount but permitting dumping ot the fuel when said adjoining movable section is tilted a given amount. and means for at will tilting said end section.

6. A stoker having a pluralityT ol individual sections arranged in a series and having their top surfaces arranged substantiall)v in a plane. means for simultaneousl \1 tilting all of said sections. each section having projecting portions which intermesh with portions ofY adjoining sections and means adapted when said section is tilted to deposit fuel upon the next succeeding section ot the series. means eccentric to the pivots of the section for preventing dumping ot the tuel each section having means through adjoining tilted grate sections, a normally statlonarjr end section having means for preventing dumping of the t'uel between said end'section and its adjoining movable section when said movable section is tilted a. given amount. but permitting dumping ol the fuel when said adjoining movable section is tilted a given amount. and means for at will tilting said end section. i

7. Stoker having a pluralitv of intermeshing individual pivoted sections arranged in a series and having their top .surfaces arranged substantially in a plane. means for conjointljY tilting all ot' said sections, each section having wide portionsl cooperating with narrow portions on adjoining sections and said wide portions beingvadapted when said section is tilted to deposit fuel upon the next succeeding section of the series, and means provided upon each section eccentric to its pivot for preventing dumping ot' the fuel through adjoining tilted sections.

S. stoker having a plurality of intermeshing individual pivoted sections arranged in a series and having their top sur faces arranged substantialljy in a plane. means tor simultaneousl)r tilting all of said sections. each section having means adapted when said section is tilted to deposit fuel rearward and sidewardly upon the next succeeding section of the series. and means for preventing dumping of the fuel through adjoining tilted sections, said last named means comprising depending aprons eccentric to the pivots of the sections.

9. A stoker having a plurality of individual balanced Sections arranged vin a series and having their top surfaces arranged substantiallyv in a plane. means for conjointly tilting all ot said sections. each section having means adapted when said .section is tilted to deposit fuel uponthe next succeedingr section of -the series. depending eccentric aprons provided upon each section for preventing dumping of the fuel through adjoining tilted sections. and means for tiltingly supporting said individual sections. said aprons maintaining a constant space between the-adjacent edges of the several sections when the sections are tilted.

1U. A stoker having a plurality of individual sections arranged in a series and having their top surfaces arranged substantially in a plane. means for simultaneously tilting all of said sections, each section .having wide portions which swing below the normal plane of the .section topwhen the section is tilted and permitting the fuel to be lowered therewith and adapted; when said section is returned. to deposit fuel rearwardlv and sidewardljv upon the next .succeeding section ot' the seriesmeans for preventing dumping of the fuel through adjoining ltilted sectlons. and means for tilt- 'ingly supporting said'individual sections.

11. A stoker having a plurality of centrallvY pivoted sections arranged in a series and having their top surface arranged substantially in a plane, means for conjointly tilting all of said sections, each section having means adapted when said sectionfis tilted to deposit fuel upon the next succeeding section ofthe series. removable locking blocks for holding the sections in place. means to permit removal of said blocks. and means provided upon each section for preventing dumping of the fuel through adjoining tilted sections, said last aforesaid means including curved aprons depending from said sections.

l2. A Stoker having a plurality of individual sections arranged in a series and having their top surfaces arranged substantially in a plane. means for conjointly tilting all of said sections. each section having projecting portions which intermesh with portions of adjoining sections and means adapted when said section tilted to deposit fuel upon th'e next succeeding section of the series. and means provided upon cach section for preventing dumping of the fue! through adjoining tilted sections. said last aforesaid means including curved aprons depending from said sections. said curved aprons having a. curvature noirconcentric with the axis of tilting of said sections.

13. A stoker having a plurality of individual sections arranged in a series and having their top surfaces arranged substantially in a plane. means for simultaneonsljT tilting all of said sections. each section having wide portions cooperating with narrow poitions on ladjoining sections and means adapted when said section is tilted to deposit fuel upon the next succeeding section of the series. and means for preventing dumping of the fuel through adjoining tilted sections. said last aforesaid means including curved aprons depending from said sections, said curved aprons having a curvature nou-concentric with the axis of tilting of said sections.

14e. Stoker having ay plurality of individual centrally pivoted sections arranged i'n a series. .means for eonjointl \r tilting all of said sections. each section having means adapted when said section is tilted to deposit fuel upon the next succeeding section of the series. and means provided upon each sectioai l'or preventing dumping of the fuel through adjoining tilted sections. said last aforesaid means including aprons havmg a curvature eccentric to the axis of rotation of said pivotcd sections so as to nuiintain a constant space between the adjacent edges of the several sections when they are tilted.

15. A stoker having a pluralitjv of individual pivotal sections formed with fiat upper surfaces and depending aprons on one 'side of and non-concentric to the pivots of the sections, pivots for s aid sections located below and between the extreme edges of said surfaces and means whereby said Sections may be operated in unison.

1K6. A stoker having a plurality of individual sections cach provided with wide and narrow portions adapted to intermesh with narrow and wide portions of adjoining sections. pivots for said sections located between the outer edges 'of said wider portions and means for simultaneously operating all of said sections.` said wide portiv'is adapted to lower portions of the fuel below the normal surface of the sections and thereafter raise said fuel portions and deposit them on the adjoining sections.

17. A Stoker having a plurality of iudiv'idua intel-meshing pivoted sections. pivots for said sections located between the lateral edges of said sections so as to provide balanced grate sections adapted to low` the fuel and then deposit it ou advance sections. and means for simultaneousljsY operating all of said sections.

1S. A stoker having a plurality" of inA dividual sections..` pivots at'the ends of the sections. side frames having bearings for said pivots. a ridge on each frame below the bearings. locking clips having openings to receive the pivots and fingers on the locking clips for engaging beneath said ridges to limit the inward movement of the clips on the frames.

l5). stoiter having a pluralit)v of individual sections. pivots at the ends of the sections. `side frames having blocks to receive the pivots and lugs adjacent the blocks. locking clips having portions overlying said pivots and cut awa)Y portions to receive said lugs and means to prevent said lugs 'from diseilxgaging said cut away portions. l

:20. Stoker having a plu'ralitj` of individual sections. pivots at the ends ol' .said sections` side frames having blocks to rw ceive the pivots and lugs adjacent the blocks; locking clips overlying said blocks and liavingrcut awa)-v portions to receive said lugs and fingers on said 'clips for engaging the side frames to limit the inward movement of the clips on the frames.

Q1. stoker of the character described comprising intermediately pivoted Stoker bars. means to operate all of said bars simultaneousl),Y to advance the fuel` and aprons depending from'the bars and eccentric to the pivots thereof to prevent fuel falling between the bars when thcj" ari` tilted.

22. A stoker of the character described comprising pivoted stolier bars having inter- .move it forwardlyover the bars,

meshing portions. mean` to operate all of said bars simultaneousl)v to advance the fueh and aprons dependinglr from the bars and eccentric to the pivots thereof to prevent fuel falling between the bars when they are tilted.

23. .A stoker of the character described comprisingr pivoted stoker bars, means to tilt said bars a certain amount to advance the fuel. said means beingr adapted to tilt the bars further to permit any refuse to be discharged over the end bar only. and aprons depending from said barsand eccentric to the pivots thereof to prevent discharge of fuel or clinkcrs between said bars.

Q-t. A Stoker of the character described comprisingfr pivoted stoker bars, means to tilt all of said bars` simultaneously to ad- 'ance the fuel. means to dump any' clinkers that may collect at the discharge end of the bars. aud means eccentric to the pivots of said bars for pri-venting fuel or clinkers droppin, lr between the bars.

A stoker of the character described comprisinglr lpivoted stoker bars, an end section adjacent the rear stoken.' bar, and means to tilt the bars 4.3 to agitate the fuel and said means beingIr adapted to tilt the bars 90O so as to discharge clinkei's only between the end section and the rear Stoker bar.

26. A stoker of the character described comprising interniesliinler stolzer bars, an end section adjacent the rear stoker bar, and means to tilt the bars a certain amount to agitate the fuel and more it rearward over the bars, `said means being adapted to tilt prevent fuel the bars a further amount so as to discharge clinkers only at the end section.

2T. A stoker 4of the character described comprising pivoted stoker bars having extending portions which move upwardly when the bars are tilted to break up clinkers, agitate the fuel and move it *forwardlyv over the bars, a single lever adapted to tilt all of the bars a certain amount in one direction only. and an end section adjacent the rear Stoker bar1 said end section having' an edge adapted to accommodate the stoker bar and said lever being adapted to tilt the bars a further amount to discharge clinkers and waste fuel between the rear Stoker barand said end section.

A stoker of the character described con'iprisingr pivoted stoker bars placed edge to edge. pivotsfor said bars positioned between the edges of the bars and means to and ashes from falling between the bars` when they are tilted.y said means comprising an apron depending; from each bar and eccentric to the pivots of sand bar.

29. A device of the character described comprising pivoted stoker bars arranged edge to edger intermediately located pivots for said bars, and means on said bars eccentric to the pivots thereof for maintaining a constant space between the adjacent edges of two bars when they are tilted to thereby prevent fuel and ashes from falling between the bars.

In witness whereof I hereunto subscribe mvv name this 11th day of May, A. D. 1918.

GEORGE A. KOHOUT.