US1630378A - Ash gate - Google Patents

Description

May 3 1 1927 F. H. DUNBAR ASH GATE Filed Dct. 2 2. 1924 rlllilllll hwk H- Wig/.W

attenua,

. ERANK HDUNBAR..oroLEvELANn, cierro.r

.Asnl GATE."

Appneanoafueanoctbbefaz;1924." serial No. 745,170..

`This invention V,relates to vclosures for hoppers, and `is particularly adaptedv to hoppers forreceiving ashes or other loose material. I x 1- In the usual practice' ashhoppei's are designed to hold vthe hot ashes until they can be dischargedV in Vsuitable transporting yde- Y vices by opening the doors of a gate construction beneath the discharge opening. In order to quenchthe hot ashes to prevent them from injuring the walls of the hopper and stolrer or other parts of the furnace construction, considerable water is lsprayed onV them. It is desirable, therefore, to remove this water in a satisfactory-and efficient An object of my invention is'to provide a door for. such hoppers which will atuall times receive and discharge easily and quickly all such liquid without allowing it to escape and fall in undesirable places.

Another object of the invention is toi-pro,

vide a closure mechanisminwhich there` is formed'a seal to prevent vleakage or overflow ofliquid around three sidesthereof so that liquid from the hopper'will be directed toward one endof the doorand discharged therefrom. P

These and other objects willbe apparent from the following description and attached drawings forming apart of this application,

in which Figure'l is a plan view with ypart of the K frame broken away to show the flanges more clearly. l Fig. 2 is. a section on line V2-2, Fig. 1, with parts omitted. n

Fig. 3 is a section onv line 3-3,"Fi'g.'2, with parts omitted.

The lower portion of oneof the hoppers for holding ashes or other material is fragof channel construction each having a ver-A tical' web 7 and flanges 8 and 9 projecting outwardly. The sides 4 arci-provided valso the refractory material may rest7 thevianges 1() overlyingthe side portions ofthe door.

Depending from thev flange 10 is a flange 11,

with inwardly extending flanges 10 on whichA sides and" ends ofthe frame 3.

"The door 6 is carried bybfacket arms 12v -4`toy which 'are attached rollers l'pto` run on Y j ECE- `which latter preferably lextendsalong the v thev track 14 formed the flanges 9y of thev j frame. Suitable .angle lsectionsfl inayflbeKV secured to the sides of the gate frame to eX- l tendbeyond the frame and thus formcontinuous tracks for the door rollers to engage when the door is moved beyond the frame. AnyY suitable operating mechanism, such j a cylinder @actuating piston rode', may

be utilized to openand close the door.

' The door 6 `comprises a body portiointhe surface of which is covered with refractory material l16,i and upstanding vflangesv 17, `18 are carriedby the doorV along the sides and projecting beyond the front. The rear ofv the door is lprovided with a flange 19 ,eX- tending outwardly, across the widthl lof the door1 and havinga drip edge. 'Thus water which is discharged through the'hopp'eropening through the surface of the ldoor will be" directed by the side and front flanges eov ofthe door toward the rear-fof the doorand discharged therefrom.

" In order to preventleakage oroverflow of water between the frame and side walls of the door, I'have provided the side flanges 17, 18, disposed on both'sides of the depending flanges 411 "of the frame, lthere being a suffcient clearance between theflanges` to permit easy operation of the doorand-prevent binding between the door and frame.` As the inner sides of the flanges 18' are disposed lower vthan the' depending `flange 11 of the frame, the ashes or other-loose material in 'n' t'he hopper will gradually accumulatein the.

channel formed between the flanges 17 .'18 and above. the connectingweb 17a o f the door. The flange 11 is` preferably made 4with a notched bottom 'portion comprising projecting lugs 20, the edges/21 of which actas Vplows and cause any excess materialy to be gathered inthe notches'22 upon opening the door. I ash drops from-v the notches 22 of the bar and thus the flange becomes a self-cleaning scraperv to keep the ash or loosematerial from packing hard enough to cause binding` lbetween thefdoor land frame. VThe flange When the door is open the 11 at thefront of. the frame isinterrupted, Y

as at 11a, to permit Vthe door flange`18 to move forward and backward.

-At the front of the doorthe outwardly. j

.and upwardly inclined flange 24 projects 'in over t'he top of the iia'ngefQL."

frontzo'f" the vdepending iiange' Il ontlie frame. Preferably a Vpackin g member V25 of flexible material is secured to the frame that it will extend downwardly from? the frame to be engaged by the upper edge `of the flange 24 when the door is in closed position to keep the liquid from leaking out Preferably a collectingtrough is1carried by the frameand disposed so that-,it will 4receive the liquid discharged from the surface of the door at the rear ofthe door.

.T he trouga extendsacrossthe rear of. theV r`door and is of any convenient cross sectional shape'. Bymeans of outlet 27 or rthev like the liquid *inl the trough may beconducted fromV the trough and directed into any desiredchannel;` .A suitable flange 28 depends fro'n'i the frame and directs water escaping under pressurey between they surface of the door and the. depending flangell into the trough 26. Y Y

'It' willl be seen that provision is. made for keeping the surface ofthe door between the flanges 17 and 18 automatically clean,

'f so that binding' between the doork and frame rwill ,noty occur.

Furthermore, it is to be understood that the particular forms ofV apparatus shown andVV described, and the particular procedure set forth, are presented for purposesof ex; planation and .illustration` only and not .by wayof limitation `and that various modifi? cations of said apparatus andr'procedure can a frame surrounding saidl openiiig'and a door movable to close and open said opening, two upwardly ext-ending flanges on each side of saidvdoor, and: af downwardly extending flange on each sido of'said frameextendng between said doorlianges, and rvmeans for removing ashes from between said door flanges when the door is moved.

A hopper having a bottomI discharge opening, a framesurrounding said opening, a depending .flange along each side. of said Yframe, a d'oorfo'r closing said openingand movable' relative tothe frame, Vtwo upwardlyl rext-ending* flanges' at, cachv side fof. said" door forming af trough into which' the fiange vof the frame extends, and means carried by the frame flanges for scraping ashes -in Vsuch Y trouglivwhen the door isinoved.

4. A hopper having` a bottoiiicliseharge opening, a frame surroundingsaid .opening and having a depending flange along each side, adoor below said frame andkmovable relatively thereto to openand closeV said opening, a trough along each side edge of said door and adapted toV receive downwardly depending flange ofthe frame, said flanges being provided -with serrated edges 75 Y to scrape ashes fromsaid troughs. y 5, A hopper having a bottom discharge opening,a frame surrounding said opening,

a' depending flangealong eachY sidel edge of said frame, aldoor associated with said `r` vframey to open .or close said opening, a

trough carried by'each side edge of theisaid door and extending above the top surface of said door to embrace said frame flange, and a notchededgevon eachl of said'flanges for scraping ashes from said troughs# y .6r A hopperhaving a discharge opening, aframe surrounding the opening, adoor movable to open and close the opening and provided with a trough along each side, and two serrated flanges depending from the frame" into said troughs. Y Y i In testimony whereof, Ihereunto affix my signature. i y

FRANK? "Hl DUNBAR'.

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