US1646209A - Feed-chute plate for hot-air furnaces - Google Patents

Description

1927' J. c. MOBLEY FEED CHUTE PLATE FOR HOT AIR FURNACES Filed April 19, 1926 Patented Oct. 18, 1927.

STATES.

' mmnsc;moismnornns MOINES, IOWA.

FEED-CHUTE' PLATE FOR HOT-A513 FURNACES.

' Application filed April 19, 1826. Serial No. 103,017.

v This invention relates to a novel form of feedchute plate :used connection Wfltll awarm' air furnace.

The prime object of the invention islsto provide a simple, durable and lefioient feed chute plate for warm air furnaces which,

serves to prevent the fire pot brick from toppling or falling forwardly :or rearwardilyr 1 -Another object of the lIlVQIltlOllziSLtO so construct the improved feed chute plate,

that. it will allow the circulation of air under said plate, thereby serving to increase the longevity .of the plate 7 and. to promote combustion within the combustion chamber of the furnace. i

Funther:objects-1of ;;the invention are to so construct the feed chute plate that it may be readily secured to the front plate of the furnace; to provide means extending from the bottom of the plate serving to support said plate above the fire brick to permit the passage of air under the plate, over. the top of the brick and into the fire pot of the furnace; so that the inside edge of the plate will rest flush with the inner surface of the fire brick, and so that any accumulation of ashes through the air slots will gradually sift out again and thus leave the circulation free,

The foregoing and such other objects as may appear from the ensuing description are accomplished by the construction, ar-

rangement, location and combination of the several parts hereinafter more fully described, illustrated in the accompanying drawings, and particularly pointed out in the claims appended hereto, it being understood that slight changes in the precise proportions and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings forming a part of this application that Figure 1 is a cross section taken through the lower portion of a warm air furnace showing the means embodying my applied thereto. t

Figure 2 is an enlarged detail section through the fire brick and improved feed chute plate.

invention Figure 3 is an inverted plan of the feed chute plate, removed from the furnace. V

Figure 4 is a section taken through the it will be seen feed chute plate in the plane :ofthe :dotted lines 4- 1, Fig. 3, looking in the direction of the ;arrows.,;and Figure 5 is a detail section taken through theflfeed ohutep-late in the plane of the dotted lines 5:5, Fig. 8, lookingiinthe direcs tion of the arrows, in said Fig. 3. a I

In the embodiment of my invention .as

illustrated, it'vvil-lbe seen that the numeral 1 nles gnates tthe cast iron frontofwa warm air furnace, 2 the grate bars employed connection therewith, 3 the fire brick utilized the constructionof the furnace fire-pot,

4: means for supporting saidfire brick, 5 the improved feed chute ;plate;emboc ly;ing

my invention. This feed chute plate 5 forms the aha-seer bottom ,of gthe feed opening of the furnace, and is composed preferably of i a single piece of suitable metal formed at its outer edge with a plurality of open depending lugs 6 for the reception of suitable securing bolts 7 for firmly fastening the plate to the inner front portion of the furnace shell, said plate extending inwardly and terminating at its inner edge with a' downwardly extending flange 8 having a series of notched formations along its lower edge throughout its entire width, the inner face of said extension resting flush and in vertical alinement with the inner .face

of the fire brick 3. Intermediate the length i of'this plate 5 are a series of integral tapered depending lugs or extensions 9, serving to always retain the fire brick in their proper place and prevent their forward or rearward movement, and between said series of extensions 9, and thesaid flange 8, is formed a series of integral depending lugs 10 adapt- 'ed to contact with the upper end of the fire brick, thereby holding the plate 5 slightly abovethe upper end of the fire brick, while on the lowermost edge of the flange 8 is formed a series of integral projections 11, coacting with a series of integral projections 12 extending downwardly from the flange 8,,-

said projections 11 and 12 resting in contactwith the recessed portion formed in the upper end of the fire brick, thereby forming a seriesof openings between the lower face vent theburning off and destruction of the j plate from the'intense heat of the fire and also assisting the promotion of proper combustion within the combustion chamber of the Warm air furnace. v t

It will be perceived that thedownwardly extending projections 11 and; 12; are so beveled off at 13 that any accumulation of ashes which may form in the litilf openings will gradually sift back and out again thus treeing-the air circulation. a

= Having thus described my invention what I claim and desire to securebyiLetters "Pattermediate its ends, and a series of depending lugs between said flange and extensions.

3. A feed chute platefor warm air furnaces consistingof a single piece of metal formed'with a" depending flange at its inner edge having aseries of notches, said flange adapted to overlap a portion of the fire .brick of the fire pot wall of a furnace, said plate havin depending lugs adapted to contact withthe outer face of said fire brick and a seriesof depending lugs disposed between the flange and the first-named depending lugs. v p i 4. A feed chute plate for warm air furnaces-consisting of a single piece of metal formed with as depending flange at its inner edge having a series of notches, said flange adapted to overlap a portion of the fire brick o of a furnace, said plate having depending lugsyadapted to contact withthe outer face of 'saidfire brick,a series of depending lugs adapted to contactwith the upper edge of the fire brick, and a notched depending flange formed at its outer edge.

' JAMES C. MOBLEY.

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