US105260A - Improvement in railroad-car stoves - Google Patents

Description

LA). cese/xm Car Heater.

No. 105 260. Patented July 12'. '1870.

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JOHN Q. c. SEARLE, ori'roPEKA, KAivsAs-n' LettcrsgPatent No. 105,26, (lated July 12, 1870.

IMPROVEMENT IN' RAILROAD-CAR A STO'VES.

The Schedule referred to in these Letters Patent and making part ofthe same.

I, JOHN Q. C. Susann, of Topeka, county of Shawnee, State of Kansas, have 'invented au Irnprovement in Stoves, of which the followin'g is a specification.

Object of the Invention.

My invention consists of a stove especially adapted for railway cars and other vehicles, -and constructed, as fuly described hereafterso as to be readily supplied with fuel, require little attention, and so that, in case of accident to the vehicle, the contents of the fire-pot will be discharged, .and the heated plates will be cooled by a volume of water thrown upon the same.

My invention further consists in perfurat-ing the casing of the stove and of the fuel-magazine, as fully described herea r; of a certain arrangement of the fire-pot, a casing, and external dues; .and of a vgrate of a peculiar construction.

Description of the Accompanying Drmctng.

Figure 1 is alsectional elevation of my improved stove and of sucient of a railway car to illustrate my invention;

Figure 2, a transverse section on the line l 2, fig. 1;

Figure 3, a transverse section on the line 3 4ig. 1;

Figure 4, a perspective view, drawn to an enlarged scale, of' part of the stove; and

Figure 5, a detached. sectional view, drawn to an enlarged scale.

General Description.

A is the base, B the body, and C the magazine or fuel-reservoir of a stove, which is shown as arranged within a railway car, the reservoir extending through the top of the latter, and being provided at its upper' end with a detachable cap or cover, A'.

The hase of' the stove is divided by horizontal partitions a al, and by a central cylindrical tube or casing, b, into annular chambers D D1 D2, the chambers D D1 communicating with each other through the openings c c, fig. 3, in the plate a1, and the chamber Dl communicating, at one side, with the main iiue or pipe E, which extends through the top of the c ar.

The cylinder b extends through the bottom of thel car, and communicates with a rectangular casing, F, resting on the top plate a2 of the base, and supporting a shallow fire-pot, G, which has fiar-ing sides and a central rectangular opening, d.

A valve or damper, b1, in the cylinder b, is secured to a rod, b2, which extends through the casing of the stove into the car.

A perforated cylindrical casing, H, extends from the tire-pot to the plate a2, and incloses the casing l? and a surrounding chamber', F', air being admitted to the latter through tubes b, which extend from the plate a?, and through the bottom of the car.

With the {ire-pot, near the outer edgel of the same,-

communicate tubes or ihres I, which extend downward, outside of the casing F and H, to the base, and communicate with the chamber D.

The casing g ofthe stove, between the re-pot and the top f, is inclined, as shown in the drawing, andv is perforated, in the present instance, throughout its entire extent; and the fuel-reservoir is likewise perforated from its lower end to a point about midway between Y the top plate f ofthe stove and the top of the car. y

At the lower' end of the reservoir 'Ls a feeder J, having a perforated expanded or bell-shaped mouth, and from the edge of the latter to the surrounding casing g extends a horizontal perforated plate, h, an opening, c', in the latter, and an opening, t', in the casing g, each provided with a suitable door, permitting access to the fire-pot.-

l Through the casings F and H extends a shaft, K,

on the outer end of which is a short sleeve,gq, the latterbeing connected at its inner end to a grate, L, consisting of a section, l, of' a hollow cylinder, slotted as shown in the drawing, and secured to segmental plates o c', turningon the shaft K, the grate, when in a position to support the fire, extendinginto the opening d, and bearing against 'a stop, j, ou the casing, F, as shown in fig. l. p Y

On the segmental plate o o f the grate is alug, t, beneath which, when the fgrate is in the position shown in the drawing, extends the bent, arm of a lever, L', vibrating on a pin, 1', supported on lugs on the casing H, the vertical arm of the lever' extending' through slots in the partitions n al a? into .the chamber D2, and having at its lower end a ball or weight, s. r The grate .is so suspended or weighted that, ,when the arm of the lever L' is withdrawn ii'om beneath the lug t, the grate will turn in the direction of its arrow, iig. 1, until it strikes a lug, t', on the casing F. The sleeve q is provided with a handle, q', and the shaft K with a handle, m, and to segmental plates attached to the shaft K is connected a plate or damper, M, curved to correspond to the grate L, beneath which it may be turned by revolving the shaft, the damper, when not beneath the grate, resting against the lug t. Within the magazine O is a water-reservoir, N, having at its lower end an opening, to which is iitted a valve, u, the latter being connectedby a wire, lv, to a lever which extends through the casing of the reservoir into aA slotted tube, p, projecting from a ba-v sin, Q, attached to the outer side of thecasing.

Across the basin Q, at each side of the tube pfextends a rodfre, which supports a metal ball, T, in the position shown in figs. l and 5, for a purpose. described hereafter. A

Operation. In'burning bituminous or soft coals, which evolve inflammable gases with great rapidity', it is desirable,

in order to eiect their perfect combustion, to introduce among them a most abundant supply of air, but without admitting it in such a volume as to cool the gases and cause the production of smoke. ject I have accomplished by perforating the casing of the stove, adjacentto the point where the gases are evolved, to such an extent that the external air can pass almost without resistance mto the heated gases, and` I have found, by practical tests, that a most thorough admixture of the air with the gases may thus be elfected, While the volume of the air is so broken by the numerous minute perforations through which it passes that the sudden reduction of the teinperature of the gases which would result from the free admission of the air in any other manner is prevented, a most thorough consumption of the gases within the body of the stove being the result.

In the present instance the air passes through the perforated casing g and through the perforated plate h into the re-pot, where it mingles with the products of combustion, and then passes with them downward, through the tubes I and chambers D and D1, to the main ne E, air being supplied to the fuel in the grate through the tube b.

The direct contact of the heated gases with the exposed flues I and with the plates in the base of the stove thoroughly heats these parts and the air which circulates in contact with the same, while the perforated casing H is heated by radiation from the tlues, and by its contact with the heated fire-pot and easings, and, in turn, imparts its heat to the air which passes through it from the chamber F'into the apartment.

The perforations at the lower end. of the fuel-reservoir permit the air to pass freely into the reservoir and among the fuel within the same, while the passage of thel draught downward through the pipes I draws air downward from the' reservoir, not only preventing gases frorn ascending in the `latter and passing to the apartment, but also eectually maintaining ,the coal, Veven at the mouth of the feeder, at such a low temperature that no gases can be evolved.

By extending the magazine to the roof of the car its capacity is increased so that long journeys may be performed without" introducing a new supply of fuel, the constant supervision of there, which diverts the attention of the brakemen from more important dnties,'b eing thus rendered unnecessary.

Invasmuch as the reservoir is replenished through the top ofthe car, from suitable reservoirs arranged,

in the station or adjacent to the track, the cars can be maintained in a more cleanly state thanwhen the Vfuel is introduced into the stove in the ordinary man' ner.

The draught may be regulated by turning the shaft K so as to carry the damperM beneath the grate, and the fire may be sifted by agitating the grate L by meansv of the handle q, the ashes being received upon `the damper b, which is turned to discharge them when necessary. x

Should a violent shock be imparted to the vehicle, orshould it be overturned', or even inclined to an unusual` degree, the weighted lever L will be vibrated so that its end will pass from beneath the lug t, whenv This obthe discharge of the water from the reservoir-,into the heated fire-pot, and upon any heated fuel that may remain within the stove.

When the stove is arranged upon a steamer or other vessel, the tube b may extend downward into the water, andaiords a ready and cleanly means of removing the contents of the fire-'pot at any time.

It will be apparent that other devices may be employed for effecting` the discharge of the contents of the reservoir and of the ire-pot. For instance, the reservoir may be partly of glass or other material which will be fractured on the jolting of thev vehicle, and the grate maybe hinged at one side and supported at the lother by a glass rod, which will break when the vehicle is jlted, or fall from its position when inclined.

Slotted plates, slats, or wire-gauze or netting may be substituted for the perforated plates described, and the grate, instead of being cylindrical, may be spherical.

C lat'ms.

1. The combination of a car or other vehicle, a

` side of the said casing to the base of the store.

4. rIhe combination of a fire-pot, G,casing F, and outer perforated casing H, substantially as and for the purpose described.

5. The combination, with theA said casings H and F, of tubes b, arranged to admit air to the chamber F between the two casings.

6. The combination, with a fire-pot and with ailne 0l' ilues for conducting the products of combustin downward from the fire-pot, of' a plate, h, perforated in whole or in part, and arranged abovethe fire-pot, substantially as described.

7. A fuellreservoir, perforated at its lower end, and above its junction with the stove or feeder, substantially as and for the purpose described.

8. A casing, g, consisting of perforated metal, and arranged above the fire-pot of a stove, for the purpose described. A

9., The combination of a stove, a fuel-reservoir, a water-reservoir, and the devices described, or their equivalents, which will cause the discharge of the water on the jolting or tilting of the stove.

10. The combination of the stove, the dumpinggrate, and the devices described, or their equivalents, which, on the jolting or tilting of the stove, will open the grate and discharge the contents of the fire-pot.

11. The curved grate L, arranged and operating substantially as described. f

12.-lhe combination of the curved grateL and the curved damper M, operating as specified." f

13. The combination of a base-burning s'tove,a reservoir, and a plate, h, supporting the said reservoir.

In testimony whereof l have signed my name to this specification in the presence oftwo subscribing witnesses.

J. Q. o. snARLn.

Witnesses:

CHARLES,v4 E'. Fos'rnn, EDM. F. BROWN.

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