US787241A - Locomotive fire-box. - Google Patents

Description

PATENTBD APR. ll, 1905.

C. VANDBRBILT. LOGOMOTIVB PIRE B0X.

APPLIUATION FILED MAB.. 3, 1902. BENEWED SEPT. 17, 1904.

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NO- 787,241. PATENTED APR. 11, 1905.

G. VANDERBILT.

LOGOMOTIVB PIRE B0X.

APPLICATION FILED MAR. 3,1902. BENEWED SBPT.17.1904.

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PATENTED APR. 11, 1905.

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LOCOMOTIVB FIRE BOX.

APPLICATION FILED MAB..3,1902. RBNBWED SEPT. 17, 1904.

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LoooMoTIvE FIRE B0X.

APPLIUATION FILED MAR.3,1902. RENEWED SEPT. 11.7I 1904.

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C. VANDERBILT.

LOCOMOTIVB FIRE BOX.

APPLIGATION FILED MAR.3,1902. RBNEWBD sBPT.1'1, 1904.

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` #www f v v f 'IN y (f7/y 11727-140441 No. 787,241. PATENTBD APR. 11, 1905. C. VANDBRBILT.

LOCOMOTIVE FIRE BOX.

APPLICATION FILED MAB..3, 1902. RENEWED SEPT. 17. 1904.

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@Fries CORNELIUS VANDER-BILT, OF NEM' YORK, N. Y.

LOCOIVIOTIVE FIRE-BOX.

SPECIFICATION forming part of Letters Patent No. 787,241, dated April 11, 1905.

Original application filed December 17, 1900, Serial No. 40.182. Divided and this application filed Marcli 3, 1902. Renewed September 17, 1904. Serial No. 224,359.

le it known that I. GonNnLtUs \".\Nmuunr/r, a citizen of the United States, residingin the borough of Manhattan, in the city of New York. county and State of New York, have invented certain new and useful Improvements in laicomotive Fire-Boxes, &c., of which the following is a specification, this application being a division of application, Serial No. 40.151, liled December IT, 1900.

'lhis invention relates generally to furnaces for boilers` and more especially to furnaces adapted for use in connection with water-tube boilers.

'l`he invention is illustrated in the aecomsupported by a p m \\'truck, the wheels S and axles 9 of which are indicated in dotted lilies l i 1n Fig. l. i

panying drawings as embodied in a structure j which is specially designed for use upon or as a part of a locomotive having a water-tube .i

boiler; but it will be understood that various features of the invention possess utility without reference to their use with the particular type of boiler shown or in a locomotive and that the several features of improvement are uot necessarily associated wit-h one anotherin a common structure, but that some of the features are capable of use independently of others.

'l`he invention will be fully described hereinafter with reference to the accompanving drawings, in whichw Figure l is a partial side elevation of a loeomotivt` equipped with the improved fnr nace. Fig. 2 is a general perspective view of the framework of a locomotive shown in Fig. l. Fig. 3 is a longitudinal central section through the tire-box section of a locomotive. Fig. 1 is a longitudinal cent-ral section through the forward part or smoke-box section of a locomotive. Fig. 5 is a view of a locomotive shown in Fig. l, partly in rear elevation and partly in section on the line Y V of Fig. l. Fig. (i is a transverse section on the line YI Vl of Fig. l. Fig. T is a transverse section on the line vVII Yll of Fig. l.

'l`he scale of Figs. 3 to T is larger than that of Figs. l and 2.

In order that the functions of the several features of the improved furnace may be. read- 'l`he intermediateframe by which the boiler j is directly supported comprises two longitudinal girders 10, rigidly supported upon the main frame by chairs or castings 1l 12 and tied transversely by three strntswa forward strut F F. an intermediate strut l) l) just forward of the lire-box section, and a rear strut B B .inst Vforward of the rear ends of the girders. 'lhe intermediate frame held rigidly to the main frame at its end by the chair l2 and by its connection with the cylinder-casting through the cylindrical smokebox. Both chairs Il and 12 are rigidly secured to the chords of the main frame.

The rear strut l B, Figs.,2, 3, and 5, is built upofthecentralcompression-web23,strength i ened and stayed by suitable angle-irtms, and

supports at its topa cradle for the two drums of the boiler, hereinafter to be referred to, such cradle comprising a llat plate 32, curved upwardly at its ends. and an intermediate chair or casting 3l. the base 3T of which is l provided with longitudinal apertures 39 for the bolts 0, by which the chair is secured to the plate 3; so that it may move thereon longitudinally.

'Ihe strut l) l) (shown in Figs. 2, 3, and 6) likewise comprises a central or compression plate 50, strengthened and stayed by suitable angle-irons and having an aperture 53 for the passage of the products of combustion. This strut is supported upon and secured to the side girders 10, and itself supports cradles Vfor the boiler-drums, such cradles comprising end chairs and a central chair (5t), which is also adapted for longitudinal movement, as described with reference to the central chair of the strut B B. y

The strut F F (shown in Figs. 2 and 4) comprises a base-plate 84, secured to the side girders 10, plate-posts 85, and a plate or casting 87, the latter, with the plates 85, forming the chair 12. The main compression-plate 95 of this strut rests upon the base-plate 84 and is firmly secured thereto. It is formed with an aperture 99 for the passage of the products of combustion and at its top supports the cradle base-plate 100, the ends of which are curved upwardly. A central chair 107 is secured to the base-plate by bolts which pass through transverse slots in the lower web to allow of lateral movement.

The boiler or generator with which the furnace is herein shown as combined comprises a pair of longitudinal drums, side headers located transversely farther apart than the two upper drums and at a lower level, both drums and the side headers having substantially the same longitudinal extension, and a lower or intermediate header located below the plane of the side headers and centrally. The upper drums 124 nd their support on the struts B B, D D, and F F, the intermediate frame directly supporting them Iand their appurtenant weight. They are preferably secured rigidly to the front strut and iiexibly to the rear and central struts to allow of relative movement. The steam-space of the drums is connected by a series of short pipe-sections 125 with a cylindrical dry pipe 126, closed at the rear end by a cap 127 and supported between the drums on chairs 128, as shown in Figs. 3 and 6, which rest between and on the drums. The front end 129 of the dry pipe extends into the smoke-box 130 and downwardly to the throttle-box 131, from which extend the branch pipes 132 to the cylinders 133, as shown in Fig. 4. As is customary in locomotive practice, the front end of the frames and cylindrical smoke-box section are secured together by casting 125, which is the same as is usually provided for this purpose.

The side headers 134 terminate substantially within and at the front of the rear strut B B, Fig. 3, and are connected, respectively, with the lower half of the corresponding drums at one side of the vertical axis thereof, Fig. 6, and to the rear of the strut D D, or, in other words, within the precincts of the fire-box, by a gang of water-tubes 135, Fig. 6, disposed in reverse-curve form, having horizontal outwardly-extending sections 136, vertical sections 137, and lower and outer ends 138, converging to the side headers 134, the upper ends 136 entering the lower half of the corresponding drum and all located substantially away from or outside of the opening 53 through the strutD D, said tubes being in vertical and horizontal series or in banks not so regularly placed.

- interfere with the free circulation.

Immediately forward of the central strut D D the boiler-tubes are not only arranged in vertical and horizontal series or banks, but have a twofold or duplex diposition.

By reference to Figs. 6 and 7 it will be noted that the tubes 139, extending between the lower half of each upper drum 124 and the tube sheet 140 of the lower intermediate header 141, are substantially straight up and down and form a bank immediately in front of the opening 53 through the strut D D to at once engage the products of combustion in the passage thereof from the fire-box to the smokebox and that the disposition of the tubes 142 between the lower half of each drum 124 and the tube-sheet 143 of the side headers 134 is the reverse of the tubes 135 in that the vertical portions 144, Fig. 6, form a head 145 in front of the opening 53 and then extend outwardly at 146 to the tube-sheet 143, which latter extends between those parts to the rear of the strut D D.

The arrangement of tubes, drums, and headers, as will be seen by reference to Figs. 6 and 7, substantially fills up transversely and longitudinally the entire channel which is formed for the passage of the products of combustion between the struts D D and F F, thereby practically lling up the entire central or intermediate section of the locomotive with watertubes adapted to be directly engaged by the products of combustion.

To furnish air for combustion, holes 24 are cut through the web-plate of the support B B about nine or ten inches above the casting. The air which is supplied beneath the lire passes through the holes and through the dampers in the ash-pan to the under side of the grate. The air which is admitted over the grate passes through the fire-doors or dampers which may be placed in the fire-doors and are not shown in the drawings.

The course of the products of combustion is over the fire-brick arch, through the opening in the second strut or support, the iron plate of which is protected by fire-brick, (and preferably a little asbestos lagging between the fire-brick and the plate,) between the tubes which connect the bottom or central header with the drums, and also at the sides between the tubes from the side headers. The spacing of the tubes is such that at the center, where the exhaust of the engine would naturally produce the greater draft, the tubes are placed close together, and at the sides, where the draft may be expected to be less, the tubes are placed farther apart, with the intention of equalizing as far as possible and spreading' out to the greatest extent practicable the products of combustion, so that all of the heat developed by the coal may be utilized for the production of steam. The water must be fed to the boiler at such a place that it does not This may be accomplished by feeding at either end of IOO the drums or at either end of the headers or centrally in the top drum at the location of the center strut if the temperature at this point permits.

Fire-brick may be employed to protect the parts in the interior, where the heat is intense. ln the lire-box section this is disposed along' the sides, as shown in section in Fig. 6, and comprises vertical portions 315, having' the lower thick and outwardly-extending portion 316 and inclined curved portions 31T, all being secured against the inside of the sheathing' and its framework before described in any usual or desired manner. Between the drum-supporting struts in this section hollow lire-brick 31S are placed between the crownlining' 31T and the outer flanges 1st?) 150 of the drums to prevent the products of combustion from passing' above the drums. These sections of brick may all find support at their ends in the framework of the struts and in any other desired way.

The opening' 52") in the strut D D, leading into the intermediate chamber, is lined with tire-brick, as indicated in Fig. 3, that at the bottom, 319, being' extended over and about the upwardly and rearwardlyv inclined plate T9 to form the lire-box deflector or arch and linding' a seat on the shelf T5 of the channelbar H. This lining' extends Vforward through the opening' in the strut and turns down, as at 321), over the sheath or covering 60 to the plate 211. Similar brick lining's 321 322 are provided for the top of the opening to cover the angle-irons 61 and adjacent plate. Such lining' may also be extended over and about all the exposed parts of the framework or wherever desired.

lYithin the intermediate section the vertical sides 218 of the sheathing-box on each side of the lower header are lined with brick 323, Fig'. i, while the heat is confined so as to strike the tubes 112 on the lower side of the bank by means of hollow quadrang'ular bricks 324e, resting at each side on the upper corner of the sheathing' and frame 325 and against the angle-plate 326, which is supported by a plate 32T. riveted to the vertical web 328 of a sheathing-bracket 32S, carried by the plate 25W. A horizontally-disposed layer 329 is carried by said plates 328 or by the horizontally-disposed plate 32TALL carried thereby, and an additional brick 330 is employed to reach over the top of the g'irder lOto the side sheathing- 225. Above the side headers the vertical plates 226" are extended lower than the horizontal plates 226, as at 331, and have riveted to their lower edges the inwardly-projecting angle-irons 332, which form support-s for lirebrick lining' above the header and tubes, such lining' consisting' of the hollow triangular portion 2531, having' the vertical wing Upon this is another strip, 336, following the contour of the tubes and fitting closely ag'ainst the outward flanges 119 150 of the drums 12st.

A lining' of fire-brick may also extend over the drums inside the crown-sheathing'. lt will be noticed that this lining' about the headers and drums follows in g'eneral the curvature of the tubes and that considerable material is saved by the hollow construction of the brick.

Fire-brick may also be placed about the exposed portions of the strut- F, as indicated in Fig'. l, the bottom part r-100 extending' through the opening' and down on each side, as at 401 and 402, and being' slanted off, as at 10?), into the smoke-box. The upper part L10-1 extends through and upward. as at y105, to cover the edges of the hole and framing' and may cxtend about the whole circumference of the opening, as indicated by the numeral 406.

It will of course be understood that the described disposition of the lire-brick is by no means the only one that could be utilized; but Yfor many purposes it is considered preferable. Y

The ash-pan L19 beneath the lire-box, Figs. 3 and 6, comprises a rectangular box-like base or bottom 250, having' vertical sides and being' sutleiently narrow to lit between the side frames 273 of the truck. lt is provided with end apertures having' swinging' doors 251 to close the same. The lower longitudinal corners of the same are formed with bars 252, grooved on their opposing' faces to receive the bottom sheet 253, the side sheets and end doorframes being' suitably secured thereto by means of angle-irons. The bottom of the pan is arched at 254 to raise it out of possible contact with the axle` and at its forward end a hole 255 is provided, with a sliding' cover 256 therefor. Access to the pan for any purpose may thus be had at either end or through the aperture 255. This box is supported from the rear and intermediate struts and the side g'irders of the intermediate frame and receives the ashes from the whole grate area by the flaring or funnel-like sides T and corresponding' ends 258, which are secured to the edges of the box by angle-plates 259 and by similar plates 260 to the flanges 261 of the depending' vertical webs 262 of the grate-supporting bars 262, which are secured to the side girders 10. The front end 25S is riveted at its Lipper edg'e to the angle-plate T8, bolted, as before described, to `flange 'T' of the transverse channelcasting' is of the strut l) 1). The rcar plate 258 is secured to the flanged iron 4S, which is shown bolted to the channel-bar 45. The latter plate has apertures covered by the sliding' plates 263 to provideadmission to the ash-pan from the rear through holes 24 in the transverse plate of the rear strut B B. The flaring' sides 25T and ends 258 are tied together by corner angle-bars, so as to make a strong' construction throughout. Boxes 25T", Fig'. 6, are built up, as shown, in the sides 257 of the ash- Q pan to provide room for the drive-wheels 6.

The g'rate 26%, which may be of the usual construct1on and provided with the usual VIOO ISO

dumping levers and rods extending to the rear and adapted to be operated from the cab, comprises four sections, wh ich are supported at the sides on a projecting ledge 264L'of the box and on channel-castings 26s, secured to the side girders 10, immediately beneath the vertical web of the angle-irons 18. At the center a longitudinal bar 265 extends the length of the {ire-box and is supported at its ends upon the framework in any desired manner, the gratebars resting upon the horizontal webs 266 of said bar. The sections are separated transversely by a beam 265, located about midway of the box and secured at its ends to the framework by any suitable means. As shown, the grates are located above the drive-wheels of the locomotive and extend from side to side of the intermediate frame. They are also above the plane of the lower header 141. Filling or other bars 265b are placed in front and rear of the grate.

The Stoke-doors 280, Fig. 3, which are used to close the openings 25 are practically segments of spheres of appropriate size, having outwardly-bent or Hat circular iianges adapted to fit closely against the flat rings at the edges of the holes in the plate 23. Suitable hinges 280a are provided for the same at one A side of the opening, and a catch 280b is provided at the other, with which a latch on the door engages. The curved portions of said doors may be provided with openings 282, which may be closed by a plate 283 of suitable form fitting closelyover the outside of said portion and adapted to be turned by a handle 284 to open or close the same. A disk or other del'lector 285 may also be provided and supported on the door by a standard 286. Through these doors coal may be thrown to any part of the grate.

I claim as my inventionl. In a furnace for steam-generators comprising a fire-box section and another section communicating therewith, a fire-brick deflector located at the lower edge of the opening between the sections and comprising a transverse plate or web secured to the frame and lire-brick placed about it on both sides.

2. In a furnace for steam-generators comprising a fire-box section and another section communicating therewith, a fire-brick deliector located at the lower edge of the opening between the sections and inclining inwardly and lupwardly into the lire-box section, said deflector comprising a transverse web or plate secured to the frame and lire-brick placed about it on both sides.

3. In a furnace for steam-generators, the combination of a framework, a cross-strut and girders, a fire-box section and an intermediate section separated by said strut, an upwardlyinclined plate secured to said cross-strut, and a fire-brick covering for said plate.

4. In a furnace for steam-generators, the combination of a framework, a lire-box section and another section, a transverse strut separating said lire-box section and other section and having an opening therethrough, and a deiiector for the lire-box comprising an inclined plate attached to the strut of the lower side of the opening, afire-brick covering for said inclined plate.

5. In a furnace for steam-generators, the combination of a fire-box section, an intermediate section, a frame, and a transverse plate to separate' such sections supported by the frame and having an opening therethrough, the opening in said plate being lined with fire-brick.

6. In a furnace for steam-generators, the combination of a fire-box section, another section, a frame, a transverse strut on said frame separating the fire-box from the other section and having an opening therethrough for the passage of the products of combustion, and fire-brick applied to the exposed parts of said strut.

7. In a furnace for steam-generators, the combination of a lire-box section, a forward section, a grate in the lire-box section, and a heating-surface in the other section, a wall separating the two sections and having an opening therethrough, and fire-brick covering the entire lower edge ofthe opening from the grate on one side through the opening to the heating-surface on the other side for protecting the frame and cooperating devices.

8. The combination of a frame, a boiler carried thereby, a smoke-box section and another section, a partition therebetween having' an opening through which the products of combustion are adapted to pass, and a fire-brick lining for said opening.

9. The combination of a frame, agenerator carried thereby, a fire-box section, a smokebox section, and an intermediate section, partitions between the latter section and the others having openings therethrough for the passage of the products of combustion, and lire-brick linings for said openings.

l0. The combination of a frame having cross-struts, a steam-generator carried by said struts and frame and comprising a lower header suspended beneath the struts, the said struts having openings therethrough for the passage of the products of combustion, and a lire-brick lining for said openings extending down on the sides of the struts to the said header, and over the exposed portions on the other sides of the struts.

1l. The combination of a frame having cross-struts, a generator having a header, the said struts having openings for the passage of the products of combustion, devices to support said header located on said struts beneath the opening, and lire-brick linings for said openings extending over the said devices.

l2. In a locomotive, the combination of a frame,a generator supported thereby,a sheathing also supported by said frame and comprising Vertical side plates, horizontal plates attached to the vertical plates above their lower edges`r angle-irons secured to said lower edges, and n tire-brick liningr for said h0ri- Zontnl and vertical plates and supported hy said :ingle-irons so as to project inward.

13. ln :i locomotive, the combination of a trarne Comprising' side girders, a fire-box eX- tending the full width of said girders, longitudinal supports secured to said girders conr sisting ot' channel-bars having supporting'- 5 ledges formed in the upper und inner edges l thereof, and grates extendingl between seid l supports und resting in such ledges. r This specification signed and witnessed this I5 l first day of March, A. l). 1902. l CORNELIUS VANDERBIL". .ln presence of- VM. \V. CLoUsno, l LOUIS A. SHEPARD.

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