US416844A - System of heating cars by steam and hot water - Google Patents

Description

( OOOOOO 3 SheetsSheet 1..

R. D. KIMBAL'L:

SYSTEM OF H'EATING'OARS BY STEAM AND HOT WATER. I No. 416,844. I Patented Dec. 10, 1889! 3 Sheets-Sheet 2.-

Patented Dec. 10, 1889.

(No Model.)

R. D. KIMBA LL SYSTEM OF HEATING CARS BY STEAM AND HOT WATER.

(No Model.) 3 Shets-Sheet s.

R. D KiMBAL L. SYSTEM OF HEATING GARS BY STBAM AND HOIWATER. No. 416,844. Patented Dec. 10, 13 9,

V UNITED STATES.

PATENT "OF ICE.

RICHARD .1). KIMBALIJQOF]BosroN, MASSACHUSETTS, AssIoNoaTo THE- KIMBALL AUTOMATIC CAR HEATING COMPANY, OF PORTLAND,MAINE.

SYSTEM OF HEATING CARSEBY STEAM AND \H'OT WATER.

srnorrrcacrroiv forming part or LettersPatent No.41e,e44,' dated December 10, 1889. Application filed uly 2,1888. seah No.'27s,7se. (No model.)

To all whom it nmyconcern:

Be it known that I, RICHARD D. KIMBALL,

of Boston, in the county of Suifolk and State of Massachusetts, a citizen of the United States, have invented a new and useful Im-.

provement in a System of Heating Railway- Oars by Steam and Hot ater, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this speci [ication, in explaining its nature.

The invention relates to the system of heating railway and other cars which employs steam supplied from the locomotive or other central or common source of supply; and its object is to obtain the greatest efficiency from a given quantity of steam by using in connection with the pipes for the steam-distribir tion other pipes connected with the steampipes, and adapted to receive therefrom the water of condensation whilein a heated con 1 dition, whereby the heating capacity of the ,steam is supplemented by the heating capacity of the water condensed from the steam.

I carry my invention into effect by using,

in addition to the ordinary pipes for maintaining steam-circulation in the cars, additional pipes, preferably of larger bore, arranged to receive the hot water formed by the condensation of the steam from the steampipes or pockets arranged therein to receive it, and to cause it to be circulated throughout the car, thereby obtaining, in addition to the amount of heat given off by the circulation of the direct steam, the heat caused by the circulation of the hot water of condensation, which for heating purposes is preferable to steam.

There are many ways by which .my invention maybe carried into effect, and in the drawings I have illustrated but one of them.

Referring to the drawings, Figure 1 is a view in side elevation of a car having the features of my invention, portions of one side being removed to show the pipes and connections of the system. Fig. 2 is a view in horizontal section of a car, taken immediately above the pipes of the system. Fig. 3 is a view in elevation, and Figxl is a plan, of sections of the pipes enlarged. Fig. 5 is a view the car, there extends a cross-pipe a the ends of which extend upward through the flooring of the car and connect with the steam-dis tributing pipesa and I have represented this connection as made through a trap B.

This trap affords or provides a pocket for the water of condensation, and also for the connection with the distributing-pipes b of the hot-water distribution, and theremay be similar pockets and traps at the other ends of the steam-distributing pipes a and in any other places covered by them. These pockets or traps discharge their contents'iuto the hot- Waterdistributing pipes 19, and" this may be accomplished automatically or by-hand. I have illustrated as one means of making a connection automatically a thermostatic trap C, which comprises a casing 0, divided by a horizontal diaphragm 0' into the receiving chamber a and the discharge-chamber 0 The upper chamber 0 connects with the So steam-distributing pipes and the hot water from the condensation of steam flows from the steam-pipesinto this chamber, which makes a pocket or reservoir for receiving it,

and it automatically escapes from said chamher through the passage 0 in the hollow valve 0 the lower edge of which is adapted to be brought in contact with the seat 0, upon the expansion of liquid in the chamber 0', acting through the flexible diaphragm, due to the 0 presence of live steam in chamber 0 Then the chamber is partially filled with water, the valve-seat drops from the valve to form a narrow passage which permits the hotwater to flow through the passage 0 and holes or openings cTinto. a pipe c 'connecting with the hotwater-distributing pipe. (See Fig.5.) I would say, however, that I do not confine myselfto this particular form. of connection between the steam-distributing and hot-water-distribzoo uting pipes, but may use anyother automatic device or connection.

The hot water is held in the hot-water pipes by a thermostatic or other trap or by cocks.

I prefer to use at the end of the hot-water pipe' the form of thermostatic trap above specified to check or keep back the Water in the hot-water pipe. The trap of this character can be used at the outlet of the hot-water pipe, which is the disoharge-pipe in this system,beoause it is never subjected to extreme heat and pressure from the steam, as is the casein systems. now in use. Therefore the discharge trap at the outlet of the hot water pipe may be opened so as to maintain a constant flow of water at that point at any desired temperature, and when so set it isnot liable to freeze. Of course, the hot-water pipe may have no trap to the outlet; butloonsider it advisable to locate one there. It will be seen that in any method of car-heating by steam heretofore used, the circulating-pipes used for the steamcirculation have been the only medium whereby the condensation has been got-ten rid of, as the condensation in car-heatin g is very rapid. Particularly in the rear car of the train the condensed Water is cooled rapidly in the steam-pipes, thereby ob-' structing the steam-passage and greatly delaying the heating of the car. In this system the water is entirely removed from the steamcirculat-ing pipe and contained in the waterpipes below until it has parted with its heat, and is then discharged, thusallowing the cars to be heated very quickly and without appreciable Waste of heat. This results in providing the utmost economy possible by use of all the available heat from both steam and water; also, in the rapid heating of the cars because of the perfect removal of the condensed wa ter from -the steam-pipes; also, in the greatlyreduced liability of freezing at the outlet of the discharge-pipe, as a constant flow of water can be maintained at that point by the use of a thermostatic valve, without waste.

The advantages arise, first, from the economy in the use of a given amount of steam resulting from it, and, second, from the increased heating eitect obtained from a given quantity of live steam.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States 1. The combination, in a system for heating cars by steam and hot Water, of one or more steam-distributing pipes, one or more hot- Water-distributing pipes, and an automatic discharging device for discharging the condensed steam from the steam-distributing pipe or pipes to the hot-water-distributing pipe or pipes, substantially as described.

2. The combination, in a system for heatin g cars by steam and hot water, of one or more steam-distributing pipes, one or more hot-water-distributin g pipes, a disohargingrconnection containing an automatic valve or device between the steam pipe or pipes and thehotwater pipe or pipes for discharging the condensed steam from the steam-pipes into the hot-Water pipes, and an automatic valve at the outlet of the hot-water pipe, substantially as described.

3. The combination, in a system for heating cars, of one or more steam-distributing pipes, a hot-Water-discharge pipe connected therewith and by means of an automatic valve, said valve, and an automatic valve at the outlet of the hot-water pipe, as and for the purposes described.

RICHARD D. KI'MBALL.

Witnesses:

F. 'F. RAYMOND, 26, J. M. DOLAN.

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