US412743A

US412743A - Steam-heater for railroad-cars

Info

Publication number: US412743A
Authority: US
Publication date: 1889-10-15
Anticipated expiration: 1906-10-15

Description

(No Model.) I

S. F. GOLD.

STEAM HEATER FOR RAILROAD CARS.

No. 412,743. Patented Oct. 15, 1889.

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1 UNITED STATES PAT NT 'FFICE,

SAMUEL F. GOLD, OF ENGLEWVOOD, NEW JERSEY..

STEAM-HEATER FOR RAILROAD-CARS.

SPECIFICATION forming part of Letters Patent No. 412,743, dated October 15, 1889.

Application filed April 17, 1889.

To all whom it may concern:

. Be it known that I, SA UEL F. GOLD, residing in Englewood, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Steam- I-Ieaters for Railroad-(Jars, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same.

The present invention relates, generally, to the heating of rai1r0ad-cars by the use of steam taken from any convenient source and conveyed to the desired parts of the cars by means of pipes or conduits, butinore particularly to the relative construction and arrangement of steam pipes or conduits and storage heating-chambers, by which steam is compelled to flow from a main pipe into branch pipes or conduits, in which it is utilized for heating storage-chambers, and then is re turned to the main pipe, the branch conduits affordingfree passage for the steam in one direction.

The main objects of my invention are to' impart the desired heat to the storage-chambers by providing for the flow of the desired quantity of steam through the branch conduits, which heat the storage-chambers, and at the same time to provide efficient means for exhausting the air and water of condensation from. the branch conduits; also, to heat the storage-chambers and the air of the car simultaneously by so arranging the branch conduits that a part of their surfaces is in contact with the sto'ragechambers and a part exposed to the surrounding air of the car; also, to produce an economical construction of storage-heater by forming the storagechamber and branch conduit by which it is heated in one piece adapted to be connected to similar heaters to form a series extending along the side of a carthroughout its length.

The invention consists, stated generally, in the combination of a main steam-pipe provided with a contracted passage or port and a branch pipe or conduit with a storage-chamber, the arrangement of the parts being such that steam in the main pipe will be obstructed by the contracted passage or port and will be deflected to the branch conduit to heat the storage-chamber, and will be returned to ing along one side of a railroad-car.

' s mi No. 307,540. (No model.)

ously; also, in the combination of several.

storage-heaters, each consisting of a storagechamber and a branch conduit for heating the same, with a main steam-pipe provided with a contracted steam passage or port located between the connections of each of the branch conduit-s therewith to form a series of storage heaters beneath the transverse seats of a railroad-car, all substantially as hereinafter more particularly described and claimed. 4

The invention is illustrated in the accompanying drawings, in which Figure 1 is a plan View of a series of storage-heaters properly connected and extend- Fig. 2 is a side elevation of the same, with chairs above the heaters. Fig. 3 is a longitudinal central section of one of the storage-heaters along the line m a: of Fig. 1. Fig. 4; is a crosssection of the same along the line y y of Fig. 3. Fig. 5 is a longitudinal section along the line 2' z of Fig. 1.

In the drawings, A represents storage-heatjoined together by suitable pipe-connections B B, to form with the steam-passages in the rear of the heaters a continuous main or direct steam-conduit connected at one of its ends with any convenient steam-supply, as the locomotive, and extending throughout the length of a car, or, if desired, of a train of several cars, by coupling together the direct steam-conduits between the different cars. The end of the main steam-conduit remote from the steam-supply may be provided with a trap to receive the water of condensation.

Each of the heaters A is composed of two main parts-namely, a storage-chamber O and a steam-conduit D preferably extending in loop form longitudinally in contact with the storage-chamber, and having a portion of its wall common to or in contact with the wall of the storage-chamber, while other parts of the conduit are exposed to the surrounding air. The part of the steam-conduit in the rear of the heater and designated in the drawings by the letter E is contracted or provided with a partition I through which is an aper- 1o ture or port G, as seen in FigsS and 5 of the drawings. The object of this contraction of the main steam-conduit E at a point preferably about midway of the connections of branches or ends of the loop-shaped conduit [5 D with the conduit E is to obstruct or partially arrest the passage of the steam in its direct or straight course and cause it to flow through the loop D to heat the storage-chamberC and the air of the car, both of which are in contact with the said loop. The contraction of the conduit E at the point designated serves another advantageous purpose namely, to increase the velocity of the steam as and directly after it passes the point of 2 5 contraction, and thus create a partial vacuum in the conduit D, operating to draw or suck out any air or water which may be bound or trapped in the loop. The contraction of the direct steam-passage or the partition and port G is placed at the bottom of the conduit E, so as not in any way to impede or obstruct the passage of any water which may accumulate in the conduit; but it will permit the water to be blown oif in a direct course through 5 the several contractions or ports of the entire series of heaters, no matter what their number or length of extension may be.

It is observed that the advantages above named resulting from the contraction of the 4o main steam-pipe are not limited to or dependent upon the special relative arrangement of the wall or surface of the conduit D and the storage-chamber as described and shown in the drawings; but these advantages 5 will be present whenever there is a transverse conduit which receives steam, which is arrested or deflected by the contraction, and returns it to the main pipe on the other side of the contraction from which it is deflected, whether the wall of such conduit is in contact with the outside wall of the storagechamber or otherwise.

The heaters A, which may be considered to include the storage-chamber C, the loop- 5 5 shaped conduit D, and the rear conduit E, are preferably cast in a single piece or casting. This can be easily effected by a well-known construction and use of casting-cores. For the purpose of giving the necessary Vent to the gases generated by the heat of the metal upon the core of the chamber 0 in casting the same and for the removal of the cores from the casting, three apertures may be provided in the mold, and consequently -will be left in the casting of the chamber. These apertures are designated in Fig. 3 of the drawings by the letters a and Z) Z), and

may be utilized as follows: They are all tapped out to the desired size, the aperture a being provided with a screw-plug, by which the chamber is sealed, and which can beremoved as desired to provide an opening for filling or emptying the contents of the chamber. The apertures b b are provided with screwlegs 0 c, which support the heater upon the floor of the car. Instead of the two legs 0 c, a single leg located nearly under the center of the chamber may be used, and, if desired, a lug with a screw-hole in it may be cast upon the conduit E, projecting up or down therefrom, and by means of which it maybe secured to the side of the car to render the heater more stable.

The disposition of the heatin surface of the conduit D relatively to the chamber C and the surrounding air of the car is important. In the first place, the conduitD passes upon the outside of the chamber 0, and consequently only a part of its heating-surface is in direct contact with such chamber, while other parts of its surface are exposed to the air of the car, which circulates freely in contact therewith, becomes quickly heated, rises, and is replaced by colder air. In the second place, the conduit D, being loop-shaped and extending in a longitudinal direction in direct contact with the narrow chamber 0 and supplied with steam flowing freely in one direction, will heat the chamber sufficiently, even though only a part of its surface is in contact therewith.

It is understood that the storage-chamber is to be filled nearly full with water, brine, or some other suitable fluid, and is scaled up to prevent evaporation and escape of the heat except through the wall of the chamber. It is also understood that the shape and relative location of the conduit D to the chamber 0 may be somewhat varied, in order to bring a greater or less part of its heating-surface in contact with the chamber.

The individual heaters A are conveniently connected into series by the pipes B B, one end of each being screwed into the conduit E of contiguous heaters, while the other ends of these pipes are united by preferably a right and left hand coupling, in the usual manner, as seen at H in Fig. 1 of the drawlugs.

It is evident without further explanation that these heaters can be applied to heat any other compartment as well as that of a railroad-car.

\Vhat is claimed as new is v1. In a heater for railroad-cars, containing a storage-chamber and a branch steam-conduit for heating the same,a contractedsteam passage or port located in the main steampipe between the connections of the branch conduit therewith, for the purposes set forth.

2. A storage-heater for railroad-cars, composed of a storage chamber and a loopshaped heating-conduit having a part of its heating surface in contact with the chamber and a part exposed to the air of the car, in combination with a main steam-pipe provided with a contracted passage or port located between the connections of the loop-shaped conduit therewith, for the purpose set forth.

3. The combination of several storage-heaters, each composed of a storage-chamber and a branch'conduit for heating the same, with a main steam pipe or conduit provided with I0 contractedpassag'es or ports, one of which is located between the connections of each of the branch conduits therewith to form a series of storage-heaters located beneath the transverse seats of a railroad-car and extending throughout the length of the car, substantially as and I 5 for -the purpose described.

- SAMUEL F. GOLD.

Witnesses:

RoB'r. F. GAYLOBD, FRANK E. HARTLEY.