US989055A - Locomotive-feed-water heater. - Google Patents

Description

Ml Cl l LOGOMOTIVB FEED WATER HEATER.

APPLIOATION FILED APB.Z7, 1909.

Patented Apr. 11, 1911.

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M. C. ROSS. LocoMoTIvE FEED WATER HEATER.

APPLICATION FILED APE. 2711909.

Patented Apr. 11, 1911.

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MALCOLM C. ROSS, 0F PHILIPSBURG, MONTANA.

LOCOMOTIVE-FEED-WATER HEATER.

Specification of Letters Patent.

Application led April 27, 1909.

To all whom rit may concern:

Be it known that I, MALCOLM C. Ross, a citizen of the United States, residing at Pliilipsburg, in the county of Granite and State of Montana, have invented certain new and useful Improvements in Locomotive-Feed-lVater Heaters, of which the following is a specification, reference being had to-the accompanying drawings. l

This invention is a feed water superheater for the boilers of locomotives and stationary furnaces.

The object of the invention is to provide a simple and practical means for utilizing` the heat from the cinders, smoke and gases of a boiler furnace for raising the temperature of water fed to the boiler and thereby effect a saving of fuel and prolong the life of the boiler'.

With the above and other objects in view, the invention consists of the novel features of construction and the combination and arrangement of parts hereinafter fully de scribed and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of a portion of a locomotive showing parts of its smoke arch broken away to illustrate my improved water superheater; and Fig. 2 is a detail vertical section taken on the plane indicated by the line 2--2 in Fig. 1.

The preferred embodiment of my invention illustrated in the drawings is especially adapted for use in connection with a locomotive boiler and it is arranged in the smoke box or arch beneath the smoke stack.

In the drawings, 1 denotes the body of the boiler having at its front end a flue sheet 2 and smoke box or arch In the bottom of the latter is arranged the steam exhaust nozzle 4t from which escapes the exhaust from the engine cylinders to create a draftI through the smoke arch 3 and the smoke stack 5 which projects from the top of said arch.

6 denotes a water feed pipe leading from the injector and extending to the front portion of the smoke arch 3 within which is arranged a spiral pipe coil 7. Said coil, in effect, forms a lining for the front end of the smoke arch and its inlet end 8 extends through the casing or wall of the boiler and is connected to a cheek valve casing 9, which latter is arranged upon the forward end of the feed pipe 6. If desired, the feed pipe (3 "Patented Apr. 11, 1911.

serial No. 492,507.

may be duplicated on the other side of the boiler, as indicated at G, and the check valve casing 9u on this pipe may be connected to a T-connection 10 with the outermost member of the coih 7.

For the purpose of directing the cinders, smoke and hot gases from the -1ue sheet 2 against the members of the coil 7 a baille plate 11 is arranged in the smoke box or arch 3, as clearly shown in Fig. 1. Said plate has a downwardly and forwardly inclined vertical portion and a substantially horizontal portion through which latter the nozzle Ll projects. 'lhe forward end of the horizontal portion of the baille plate is downlurned as indicated in dotted lines in Fig. Q so that the heat and products of combustion will be deflected against the lower portion of the coil 7, and the outer or front end' of the smoke arch, which latter will serve to deflect the heat and products of combustion rearwardly. Arranged on the frontface of the upright portion of the balile plate 11 is a second coil 19 consisting, preferably, of connected parallel pipes, as shown more clearly in Fig. 2. The lowermost end of the coil 19. is connected by a horizontally disposed, forwardly and rearwardly extending pipe 13 to the rear end of the coil 7 and the upper or discharge end 14: of the coil 19 extends rearwardly and is screwed into the tlue sheet l so that it communicates with the interior of the boiler. By arranging the coil 12 in the manner described, it will be seen that smoke and gases after striking against the front end of the smoke arch 3 and contacting the portions of the coil 7 will be deflected rearwardly against the portions of the coil 12 to further utilize the heat of such smoke and gases to snperheat the water passing through the coil.

At the bottom portion of the foremost member of the coil 7, and, if desired, at other points in said coil and also in the coil 12, may be provided openings closed by screw plugs 15. These openings and plugs are provided for the purpose of permitting mud, and scale to be blown out of the superheater when necessary.

llVhile the drawings show the coils as cornposed of connected sections of pipes, it will be understood that such coils may be cast from iron or steel.

It will also be understood that slight changes in the forni, proportion and arrangeinent of yparts and in the details of construction may be resorted to within the spirit and scope of the invention.

Having thus described the invention what is claimed is:

A steam locomotive boiler having a smoke box at one end in advance of the front flue sheet, a smoke stack leading from the upper side of said smoke box, and an exhaust steam discharge nozzle extending upwardlyin the lower side of said smoke box, a circular coil of pipe in the front end of said smoke box, a zigzag inclined coil in the rear portion of the smoke box, spaced from said flue sheet, connected to the water space of the boiler and also connected to the said front end coil, a feed water pipe connected to said front end coil, and a baille in the smoke box, having an inclined rear portion between the zigzag coil and the flue sheet, the upper edge of Asaid inclined rear portion extending rearwardly to said Hue sheet, the said battle also having a forwardly extending lower horizontal portion through which the exhaust steam discharge nozzle extends, and terminating in a forwardly anddownwardly inclined front portion extending into the lower portion of said front end coil, said baille directing the products of combustion from the boiler fines downwardly and forwardly in the rear and lower portions of the smoke box and rearwardly through the from end coil and against the said zigzag coil substantially as described.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

MALCOLM C. ROSS. lVitnesses JOHN R. MoKENzrE, D. NB/IGDONALD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents., Washington, D. C.

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