US196961A - Improvement in car-heaters - Google Patents

Description

z'sneens-sheet 1.

L. T. WHITE. A .GMv-H-ealer.

Patented Nov. 6, 1877.

N. PETERS, PHDTU-LITHOGRAPHER, WASHING'DN, D C

. l 2Mews-Shee't2."v L. T. WHITE.

Car-Heater'.

No. 196,961. PatentedV Nov. 6, |877.

N,FETERS, PHOTO-LITHDQRAFHER. WASHXNGTON. D C.

UNITED STATE-js PATENT OBIFIICEv LYMAN T. WHITE, or EATON HAPIDs, MICHIGAN, AssIGNoE To MARY E.

' WHITE, .0E sAME PLAGE lMPHovl-:MENT |N CAR-HEATERS,

Specil'ieation forming part of Letters Patent No. 196,961, dated'Novcmber 6, 1877 application filed v March l5, 1877.

To all whom it may concern.:

Be it known that I, LYMAN T. WHITE, of Eaton Rapids, in the'county of Eaton and State of Michigan, have invented a ne'w and useful Method of Heating and Ventilating Railway-Trains, of which the following is a speciiication:

rI he object I have in view is to utilize thel waste heat resultant from the combustion of fuel in the furnace of a passenger-locomotive and make it available for heating the cars of a passenger-train, by causing it to circulate through coils of pipe arranged in the several further, in the combination and arrangement of the several parts composing my apparatus, all as more fully hereinafter explained.

Figure 1 is a longitudinalvertical sectionof a locomotive and one'car, showing my heating devices. Fig. 2 is an enlarged sectional detail of the coil and air-chambers in the smoke-box.- Fig. 3 is a sectional perspective view of the pipe-coupling between the cars. Fig. 4 is a cross-section of the same.

In the drawing, A represents an air-chamber, placed in the front part of the smoke-box of a locomotive-boiler, and from which a metal pipe, B, issues at the lower part, passing back through one of the lower lluesof the boiler; thence through the lire-box, or, if preferred, through the water-leg, or, again, through a water-j acket in the furnace thence back under the tender into the rst car in the train, and thence through the several cars to the rear end thereof, it being united,l as it passes from car to car, by a coupling hereinafter described. The pipe is spirally coiled in the smokebox in front of the lines, in order to be heated by the waste gases and, flame issuing from them.

4At the rear end of the train the pipe B is' united, by means of said coupling, with a return-pipe, B', on the other side of the car, extending in like manner to the front end of the train, passing under the foot-plateof the locomotive and up through the cab, where it is provided with a thermometer to indicate the temperature of the return-current; thence to a suction and force pump, C, located under the 'ont part of the barrel ofthe boiler, the purpose of which pump is to exhaust the air from the pipes B B', and force it back into the airchamber A, and thus force the circulation of air through the train inside said pipes, which are formed into manifold coils under the seats of the passenger-coaches, and into Wall-coilsin the baggage-cars.

The air in the pipes, where they are exposed to the action of the llames, and also that in the chamber A, becomes highly heated, and as it passes through the pipes in the trai-n gives oli' its heat by radiation.

The air-pump may be an ordinary direct-acting device of the usual construction, driven by live steam or by exhaust steam; but in either case, under the control of the engineer,

who regulates its speed accordingly as more or less heat is required in the train, being guided by the temperature of the return-currents as read off the thermometer in the cab.

As the temperature in the chamber A falls, and the air therein becomes denser, fresh air is admitted thereto through a pipe, a, at the front of the boiler, provided with a self-acting valve, b, which opens whenever the pressure of the external atmosphere exceeds that within the chamber A, and thus admits the necessary volume of air thereto.

If desired, the return-pipe B may pass through the water in the locomotive-tender in a coil, and thus raise the temperature of the feed-water.

The coupling D is composed of three short nipples, coupled by four elbows into the line of pipe. Each nipple is cut in two, and the two halves are coupled together by a runningsocket, o, or one screwed upon a flanged union, c', slipped upon the llanged end of the other half of the nipple, on which itis free to rotate axially, while leakage at the Imion is prevented by packing the joint. .This form of coupling enables the end nipples to approach or recede as the cars play back and forth.

The middle coupling D is cut in two and bevel-flanged at the meeting ends, with an in-A terposed packingring, d. These an ges are clasped by a double-anged ring, E, cut in two parts, joined at one side by a spiral spring, e, and at the other by a screw, f, passing through lugs at the ends of the section.

The screw f compresses the parts of thering then have reversible valves, andits inlet be disconnected from the coils in the smoke-box. It can then be used to force air through the pipes into the train.

At terminal stations, and places Where locomotives are changed, to heat the train when standing disconnected from the. locomotive,

the pipes are to be connected to a local airheating furnace, through which circulation is effected by a steam or hand pump, the connection with the train-pipes being made with flexible tubes.

What I claim as my invention is I l. In apparatus for heatingrailwaycars,the combination, with aloeomotiveengine, of the pipe B, heated. by the hot gases of combustion issuing from the lues of the locomotive-boiler, the return-pipe B', a suitable connecting box or chamber, and the steam-driven air-pump C, whereby a constant stream of hot air is forced through pipes extending throughout the train and returned to the locomotive to be reheated, substantially as described. I

2. In apparatus for heatingrailWay-cars,the combination, With a 1ocomotivefengine, of the hotair chamber A, hot-air pipe B, return-pipe B', air-pump C, and air-supply pipe a, substantially as described and shown.

LYMAN T. WHITE.

Witnesses:

PHILIP LEONARD, O. M. Fnos'r.

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