US1047590A - Air-admission device for locomotive fire-boxes. - Google Patents

Description

JQG. TALMAGB."

AIE ADMISSION DEVICE EUR LocoMoTIVE EIEE BOXES.

I APPLIOATION'FILED APR.24, 1911. I

1,047,590, Patented Dec. 17, 1912.

2 SHEETS-SHEET 2.

A TTUR/VEY NORRIS PETERS. |NCI. LITNDI. WASNING'DNA Y). C.

UNITED STATES PATENT oFFIC ,i

roHN e. TALMAGE, or CLEVELAND, omo.

AIE-ADMISSION DEVICE EOE LoooiaoTIvE FIRE-BOXES.

Specification of Letters Patent. I iltllied DC. 17, 1912. Application filed April 24, 1911. Serial No. 623,049.

One of the objects of this invention is toprovide effective means for enabling 'the admission of air to a locomotive lire box from the sides of the locomotive in such a way as will not allow the hot coals to drop out at the ysides of the ash pan.

vAnother object is to enable the convenient cleaning ofthe side portions of the ash pan where material is liable to clog. y

Still another object is to provide for convenient calking of the mud ring.

Another object is to simplify and render more eiicient the general constrii'ction at the outer edge of the ash pan, including its support and the support of the grate. v

In accomplishing the desired result I provide an air space beneath the mud ring leading to the top of the ash pan adjacent to the under side of the grate, and at the outer' side of this air space I mount a concave, upwardly extending deflector. This detlector isopen above so that there is a convenient air passageway to the grate, while the defiector prevents any hot coals dropping out; it." also gives a neater appearance tothe locomotive by preventing the hot coals in theI ash pan being ordinarily visible from t-he outside. By having this deflector pivotally mounted, it may be swung upward on its pivots toenable access to the ash pan for cleaning its outer portions, where material is liable to clog. The bottom plates supported by the brackets and defining the air space are made removable to enable yaccess to the mud ring for calking. I use the same brackets for holding not only the detiecto-r and the bottom plate referred to, but also the outer portion of thel ash pan and the grate itself. All these features will be hereinafter more 'fully described.

My invention is clearly illustrated in the drawings hereof, in which- Figure 1 is a perspective view of the lower `portion of a water leg of a locomotive boiler eguipped with my air admission device; Fig.

2 is a vertical cross section through the air admission device and the mud ring and the -outer parto' the ash pan; Fig. 3 is a side elevation of the parts shown in Fig. 2, Fig. '-'t a detail in vertical section illustrating the detlector in its uppermost position; Fig. 5 is a rear endview, partly broken away, of a locomotive equippedywith my improvement. Y `As shown in the drawings, 10 audjlitiiepresent respectively the inner and outel plates of the water leg ot a locomotive bo`iler .^12 the mud ring between these plates forming the bottom of the water leg, and 13 the usual rivets securing the plates to the mud ring.` Secured to the under side ,of the mud ring by bolts 15 are brackets 16, ywhich carry at their upper, inner portions thegrate (not shown) and at their lower, inner portions the inclined outer part 17 ofthe ash pan. On the under sides of the brackets 1G are bottbm plates 1S, and on the outer sides of the brackets are ears, 1 9, on which are pivotally mounted sector-like arms 20, which carry at their outer edges a quadrant-shaped shield 21.. 23 and .24.- indicate end plates for the shield, which are adapted to aline with end plates 25 and 26 of the ash pan.

It will be seen from the above described construction that there is an air space opening into the top of the ash pan beneath the grate, such space extending downwardly and inwardly between the bottom of the water leg and the curved shield and bottom plate 18. It will be `seen also that, while the curved shield with the .top open space does` not restrict the' air passageway, it does pre- -vent any material dropping outwardly through the passageway. Whenever desired, the shield maybe turned upwardly, as indicated in Fig. 4,.` and in'vthatfpo'sition allows easy access of suitable implements to the as'h lpan for purposes of cleaning the slopey 17, where material is liable to cling.

In the particular form shown, the bi-ack ets 1 6 are webbed malleable castings, the ears.

19 are arranged in pairs and the arms 20,

which are` also webbed malleable castings, take-between these ears and are pivoted-t'o them by hinge pintles28. The'arms 20 have at their 'arcual edges' ears 30 and the 'shield` plates are secured tothese ears by suitable rivets 31. 'Theshield is. stilened at its-upper edge by a reinforcing strip 32 and at its lower edgevby a-reinforcing angle bar 33. The end plates 23 and 24 are also shown as stii'ened by angle bars36 and 37 The ends may be conveniently secured to the quadrant portion by intermediate angle pieces 38 and 39 riveted to them. This construction 'makes a very stiff and at the s me timel cheapand light quadrant shield:.wl1ich normally rests by gravity in its closed yposition-but may be 'true whether thef admission to the air passageway is entirely from above the shield,

las shown in Fig. 2,' or entirely below it, as

shown in Fig. 3, or partly above andpartly` below it. e l

-The bottom plates 18 maybe reinforced at their outer edges by'angle bars`40, which v form -a convenient abutment for the'angle bars 33 at the lower edge of the shield. F urthermore, angle bars 41 may be provided at the ends of these bottom plates 18. The bottom plates are secured by bolts 42 to the'bot.

. tom of the brackets 15.. This construction f and the bolting of the bracket itself to the enables these bottom'plates to be readily re# Amoved whenever desired, thus giving easy access to the bottom of the water leg for 'purposes of'calking. Furthermore, the bolting' of the ash pan plate 17 to the bracket at 45 mud' ring by the bolts 15 enables convenient installation of the parts and their convenient removal when necessary.

My construction, as above described, may be easily and economically applied tolocomotives; it insures the proper air admission at all times to the grate throughthesides;

it enables proper cleaning of :the A ash pan slopes; when the shields are swung upwardly for cleaning, or other purposes, they.

swing substantially in their own space, so.

that they are always within proper clearance lines; and finally, the simple removal of the hinge pintles allows the `removal ot the shields, and the removal ofjthevbolts-12 allows theremoval of the bottomjplates to enable convenient access to the mud ring` for calking'.

Having thus described my. invention, whatI claim is: .i

1. The, combination, with a mud ring, of bracket-sisefcured thereto and projecting below the Amud yring, an ash pan-having anein# signature in the presence of two witnesses.

JOHN e. TALMAGE; y

clined side secured to said brackets and thereby spaced from the mud ring, a bottom plate secured tov said bracketson theirr under sides and coperating withthemud ring to provide an air passageway to the grate above the top of the ash pan. and a bracketsseeilred thereto, an ash pan having an inclined slde secured to the bottompor tion of said brackets and thereby spaced from the mudring, a bottom plate for the brackets, outwardly extending-ears on'the brackets,'and a vsegmental deiector coper-; ating with the bottom plate andhinged atl its center of curvature toi, said ears.

i 3. .The combination, `with a ymud"ringeof` brackets securedto the under sida of the mud ring and projecting downwardly,- an

ash pan having van inclined side secured near its outer edge to the under side of the brack ets and thereby spacedtrom the mud'ring, bottom plates secured to thefunder side of the brackets and coperating with the mud ring Vto forman air passageway above the ash pan, and an upwardly .extending de-v lector at the buter endl of thepassageway.4

el. The combination, Awith a mud ring, of .brackets secured to the under sidev of. the mud ring and extending downwardly from 'the mud ring and inwardly therefrom, said brackets' having' their upward inner" portion v '85 having an inclined side secured near its `adapted to form a grate support, an ash' pan outer en'd to the lower part' of Ithe inner portion of the bracket,a plate secured to 'the' bottoni of the brackets beneath the mud ring,'and a deflector carriedbythe brackets beyond the outer side of the mud ringand coperating with the bottom plate.

'5. The combination of a locomotive boiler having a water leg, of a set of brackets secured to the waterleg at the opposite sides of vthe boiler, an' ash pan having inclined sides' which are secured-'near their upper edgeste the-bottom of said brackets, bot` tom plates securedto the under sides of the brackets beneath the ni'ud ring and coperating therewith to define anairpassageway tothe grate above the top of the ash pan, ears on said brackets, segmental'arms connected with said ears, and a segmentalv deiector .secured to--the outer faceof said arms and coacting with thebottom plat-e to-define a downward and inward air passageway. Intestiinony wherecf,`l' hereunto aiiix my ,"Witnesses:

ALBERT H. BATES, BRENNAN B. WEST.

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