USRE11196E - Means for heating railway-cars - Google Patents

Description

3 Sheets-Sheet 1. J. 0. c. SEARLE.

Assi gnor to J. E. SEARLE. MEANS FOR HEATING RAILWAY CARS.

No; 11,196. Reissued Sept. 29, 1891.

jme gfi J02 Q (T earl :7

7 mbaass'ea ft 3 SheetsSl1eet 2.

J. 0. 0. SEARLE.

Ass ignor to J. E. SEARLE. MEANS FOR HEATING RAILWAY CARS.

No. 11,196. Reissued Sept. 29,1891.

3 Sheets-Sheet 3.

J. O. 0. SEARLE.

Assignor to J. E. SEARLE. MEANS FOR HEATINGRAILWAY CARS.

Nd.11,196.- ReissueQSept-ZQ. 1891.

UNITED STATES PATENT ,OFFICE."

JOllN Q. C. SEARLE, OF CHICAGO, ASSIGNOR TO JULIA E. SEARI. 1, Oh (200K COUNTY; ILLINOIS.

MEANS FOR HEATING RAILWAY-CARS.

SPECIFICATION forming part of ReissuedLetters Patent No. 11,196, dated September 29, 1891.

Original No. 370,897,

To all whom, it may concern:

Be it known that I, JOHN Q. C. SEARLE,.a citizen of the United States, residing at Chi= "ago, llLtliflfifillllt-y of (lookand State of Illi- .ioiallave invented new and useful Improvements in Means for lleating Railway-Gars,of which the followingis a specification.

The object of my invention is to provide a safe, cleanly, andieconomical method of railro way-car heating by the use of oil, whereby the heat can be readily regulated from time to time, as required, and the annoyance ofdust and ashes incident to the employment of ordinary, stoves avoided as well as danger from fire or explosion in case of collision, overturning ol the ear, or like accident.

The invention consists in the combination, with an oil-stove, of a main reservoir located beneath the car, an intermediate feed-tank above the car-roof, and pipe connections for conveying oil from the main lower reservoir to the upper feed-tank and thence to the stove, and also to?returning the overflow of the feed-tank to the reservoir, provided with suitable means for controlling the flow of oil, and the tank andreservoirbeing furnished with automatic valves for preventing the escape or oil in case said receptacles should become accidentally displaced.

The invention also consists in a water heating and circulating apparatus embodying certain novel features of construction, which will. be hereinafter set forth.

In the annexeddrawings,illustrating the invention, Figure 1 represents, paifly in sectional elevation, a view of a can-heating ap-' paratus embodying my improvements, the car being shown in dottedlines. Fig. 2 is an enlarged view in side elevation of my improved apparatus for carryinga supply of oil beneath and above ing it from the lower reservoir to the upper feed-tank, and thence to the stove. illustrates the application of .my improved heating apparatus to a railway postal car.

Referring to the drawings, the numeral 1 designates an oil tank'or reservoir that is supported beneath a railway-car by means of hangers 2 or otherwise inany convenient manner. This tank or reservoir is preferably said pipes being a railway-car and for feed-.

Fig.

dated October 4, 1887. Reissue No. 11,101, 1891. Application for present reissue filed July 27, 1891. Serial No. 400,904.

dated August 5, 1890. Reissue No. 11,170, dated June 2,

made of metal and may havesuch capacityas to permit its containing a sul'licieut supply of oil for an extended trip. Being located hencath the car, as shown, the tank '1 will be, out of the way, and may be made of. large size without involving the carriage of any considerable'quantity of oil within the car.

In order torprovide, however, for a proper feed of .oilto the stove, an auxiliary or intermediate oil-tank 3'is arranged above the roof, or the oil-tank 3 may be placed at anysuitable or convenient elevation within the car.

- Oil is conveyed from the reservoir 1 to the tank 3 through a pipe ,1, the lower end of which is connected to a valve-case 5,.that is secured to a piped, which passes through one end of the reservoir 1 and extends to near its bottom. The valve-case 5 contains a checkvalve 7, that is normally in an-open position by reason of its stem 8 being supported at one end against some fixed portion of the car,

or in any other convenient manner. On the opposite end-of the valve-stem 8 isaspringfl, by which the valve is automatically closed whenever the valve-stem is removed from its .75 fixed support, thus avoiding waste of oil in case the reservoir 1 should be accidentally displaced or disconnected from the car.

The pipe et,eonnects at a convenient point with a pump 10 or other suitable suction and fiorcing device of any approved construction, by which oil is forced into the upper tank 3 against the pressure of a sprin -seated check-valve 11, located externally at one end or side of said tank. Beneath the pump lllis a hand-valve or cock l 2, that is closed after. oil has been pum-ned intothe uppertanlgand this cook 12 has a vent 13, that opens in line with the pipe 4 and communicates through the cock with an air-inlet 13 in the casing go 12, as shown in Fig. 2, so as to permit the return of oil from beneath the pump to the reservoir when said cock is closed.

The tank 3 has a vertical overflow-pipe 11,

the lower end of which connects with a hand- 5 valve 15. The casing-of this hand-valve 15 is connected beneath toa pipe-section or chamber 16, having a transparent panel 17, and the lower end of the chamber or pipe-section 16 is connected to a return-pipe 18,

. ported against some fixed portion of the carthrough which overflow-oil from the tank 3 isconveyed to the reservoir 1 beneath the car. he lower end of pipe 18 is connected to a va1ve-easing'19, located above or at the side of the oil-reservoir 1, andcontainin g a springseated check-valve 20: that is held normally open by having the end of its rZem 21 supin the manner already describedwhen refer ring to the check-valve 5 between the pipe 4 and reservoir. Theoverfiow oil from the tank 3 and pipe 18 passesthrou'ghthevalve-casing 19 anda bend 22, .and thence into the reservoir beneath the car. The valve casings -5 and 19 are preferably joined to the pipes ,if and 18, respe'ctive1y, by means of lead or other separable connections, the attachment, I of said valve-casings to the reservoir being more firm and secure; ,so that 'in case the oil-reservoirl' becomes accidentally displaced or detached the valve-casings will become disconnected on the sides next to the pipes 4 and 18, and as theyalye-st'ems are thus relieved of their support they will auto.- matically close under the action of their springs, thereby preventing waste of oil from the reservoir.

In pumping oil into the tank 3 from: the reservoir 1 the carporter or other attend-ant will see that the valves 12 and1-5 are open,

and while pumping will watch .the transpa-' rent panel 17 in the pipe-section or chamber 16, that communicates with the overflowpipes. As soon as he detects any flow of oil downward through the chamber 16 he will know that thetank 3'is filled to the level of the overflow-pipe 1.4,andwillthen cease pumping, at the same time closing the hand-valves 12 and 15. Whenever it is desired to know whether the upper tank 3 is filled it is only necessary to open the hand -valve 15 long enough to empty the small quantity of oil that may remain in the pipe 14, and if after a short interval no 1nore oilv is seen passing the transparent panel 1'7 it will be known that the level of the oil in the. tank 3 is below the top of said pipe 14, whereupon the valve 12 should be opened and the pump operated until a flow of O1]. is again seen through the transparent panel. The pump is then stopped and the valves 12 and 15 closed, as .before. The condition of the oil-tank 3 as to -ts sup ply is thus readily ascertained and controlle The oil-reservoir 1 beneath the. car may be filled through a valved funnel 23, or in any other convenient manner.

The stove is supplied with oil from the tank 3 through asmall pipe 24, that connects with a valve-casin '25, which is located external 1 to said tank at one end or side and'com'inir nicates therewith. The valve-casing con-' more securely 'to the tank 3 than it is to'the pipe 24, 'so that in case of accidental displacement of the tank the separation will be between th'evalvevcasing and pipe 24 and the valve will close automatically by the removal of support from its valve-stem, thus prevent ing the escape of oil from the tank. The valvecasing 11 at the opposite end of the tank is also more firmly connected to the tank than to the pipe 4, so that accidental separation will occur between the valve 11,. and pipe 4 sooner than between the valve and tank. The overflow- pipes 14 and 18, with intermediate valve 15, are also arranged in such a way that separation will occur below said valve rather than above it. It will thus be seen that in case of accident from collision or 0therwise the tank connections are so arranged as to prevent injury from escape of oil.

In the pipe 24, that conveys oil to the stove, is a hand valve 28, that is opened when the fire is started and closed when it is to'be extingushed. By this valve28 the heat of the stove may-also be regulated by controlling the supply of oil admitted to the burners. The pipe 24 is also provided with two safety cut- oif valves 29 and 30. These valves are actuated through arms 31, to each of which is attached a pull-cord 32 that is passed over i a pulley or pulleys 33, and provided withdrop-handles 34,th'e cord being extended through the car beneath the ceiling, so as. to

be. accessible for closing the valves 29 and 30,

ahd thereby instantly extinguishing the fire I in the stove in case of accident.

ith the above-described apparatus for holding or carrying an oil-supply and for conveying it from a lower to an upper tank and thence to the stove, as well as controlling the flow or feed of the oil and guarding against accidents, it will be found that railway-cars and dwellings or other buildings can be safely, economically, and conveniently heated with the aid of an oil stove or stoves of any approved construction.

In a railway-car the stove 35 maybe placed within thecar in the usual manner, as shown in Fig. 1, or it may be placed beneath the car, as represented in Fig. 3,'the latter arrangement being preferable in postal carsor where ,it is desired to economize space. The oil- .st'ove 35 is provided with a coil 36, having suitable jets 37, where the oil is ignited. It

inay'also contain a water-coil 38, as shown in Fig. 1,0r be provided with a water-chamber 39, as seen in Fig. 3.

The waterthat is heated in the coil 38' or the chamber 39, as the case may be, is circulated through the vertical pipes 40 and 41, connected at the top by what I term a special fitting 42, thence down through the pipe 41 and horizontal pipes 43 and 44, saidhorizontal pipes being arranged around the car near its floor in any convenient manner, and is linally returned through a bend 45 Y i the lower leg-of the coil 38, as seen in Fig. 1, or

to the water-heating chamber 39, as shown in- Fig. 3. The special fitting 42 communicates with a water and steam drum 46, located in' IIO the upper part ot the car and having an overflow-pipe 47, that may lead to a water-tan k 48 within the car. Y

If desired, the water-tank 48 may be-omittedand the overflow or waste pipe 47 be conducted to the exterior of the car, as shown by dotted lines in Fig. "11 The upper end of this 'overfiow pipe 47 extends into and above the hottoinbf the drum or expansion-chamber 46 -'to the water-level. thereof, and the lower end connects with a hand=valve 53, the casing of which is connected'beneath to'a pipe-section or chamber having a transparent panel 52, and the lower. end of this pipe-section is connected to and forms part of the'waste-pipe 47. The water-tank 48 communicates with the circulating-pipes andwith the heating-coil 38 or water-heating chamber 39 through pipes 49 and 50 and an intermediate pump 51, by operating which the drum 46, chamber 42, and connections can be given such additional supply of water as may be needed to replace any loss of water by leakage or otherwise.

Between the pump and pipe 49 is a handvalve 61, which may be closedto protect the pump from the action of heated water when it is not in use. It will be understood that the water heating and circulating apparatus is supplied in the first instance by pumping up into the circulatingpipes in the ordinary manner, the tank 48,.pump 51, and immediate connections being designed, mainly, to afford a means of supplying water to replace any waste while the car is in motion and without the necessity of coolingthe water or removing the fire. .In the overflow or waste pipe 47 f is a section having a transparent panel 52, and'above this panel is a hand-valve 53, which may be opened while using the pump 51 and closed after pumping has ceased. By opening the hand-valve 53 any surplus water above the proper level will'pass through the overflow or waste pipe 47 to the water-tank 48 or outside of the car, as may be preferred. After the. water in the drum 46 has reached a proper valve 54, a blow-odcock 55, and a rotatable.

funnel-cock 56, the latter being sometimes used for replenishing the drum when the car isin the yard out of -service.

By means ofthe special fitting 42, that connects the upper ends of the pipes 40 and 41, the-circulation is relieved of vapor and bubbles of air, an exit therefor being afforded through a perforated diaphragm 57 and pipe 58 to the water and steam drum 46. The special fitting 42 is made to serve as a connecting-chamber for the pipes 40 and 41, and is provided with an interior perforated diaphragm 57 near one end between the opening that communicates with the pipe 58 and the opening that communicates with the pipe 40.

" Theperforated diaphragm 57 is thus so located as to permit a freecirculation between the pipes 40 and 41, and while it obstructs a fiowot' water upthrough the pipe 58 it affords a s'uf- .ficient exit to the expansion-chamber or drum 46 for the passage of bubbles of air or vapor. Thus while there is no circulation in the expansion-chamber or drum 46 it is so connected with the circulating system as to be capable of relieving and controlling the'pressure.

The stove 35 (shown in Fig 1) may be of any suitable'pattern for placing in the interior of the car, and is provided with an ordinary smoke-pipe 59 and with suitable draftopeni'ngs andheat-registers. In case of accident to the oil-feeding apparatus or lack of oil for fuel, the burner-coil 36 can be removed from the stove and an ordinary grate suhsti-. tuted for the supportof coal or other fuel.

The oil-stove that is placed beneath the car, as shown in Fig. 3, may be supported by any suitable means, and is provided with a smokepipe 30, that is entirely outside of the car. This arrangement of stove is especially adapted for the requirements of postal cars by affording. a largely-increased space for postal boxes and tables, as shown in Fig. 3, so that large quantities of mail-matter can be conveniently handled and stowed without danger from proximity to fire.

An especially valuable feature of my invention resides in the fact that the pipes forconveying the oilfrom the lower reservoir to the upper tank and thence ,to the stove, as

well as the overflow-pipe fronithe tank to the reservoir, need not be of large diameter. Thus as the main reservoir'is located beneath the car and the intermediate feed-tank above the carroof, the conveying-pipes being of small size, there will never be any considerable quantityof'oil within thecar. The pipes IIO 30, by which the flow of oil can be instantly arrested and the small quantity remaining in the pipe between said yal'ves completely isolated from theoil in the tank 3whenever re-' v quired in case of fire or other accident.

It will be understood that I do not herein claim the combination of the special fitting 42 and drum or tank 46 with a hot water heating and circulating apparatus, as such is embraced in my application of December 3, 1883,

Serial No. 113,480. i Having-thus described my invention, what I claim is 1. The combination of an oil-stove, a main oil-reservoir, an intermediate oil-feed tank located above said stove and reservoir; a valved pipe for conveyingoil from" said reservoir to scribed.

and a valved overflow-pipe leading from the upper tank to the main reservoir, s'ubstau tially as described.

2. The combination, with an oil-stove, of an oil-reservoir, an intermediate feed-tank lo- 1 cated above saidstove and reservoir, a-pip e for connecting said reservoir and upper tank,

a pump for forcing oil through said pipe from the lower reservoir to the upper feed-tank, a.- pipe for connecting said tank and stove, and an overflow-pipe for connecting the feed-tank and reservoir, said overflow-pipe being provided with a cock and transparent panel, substantially as described.

' 3. The combination of an oil-stove, an 'oilreservoir, an intermediate feed-tank located above said stove and reservoir and provided with a valved inlet an d-a valvedoutlet, a pipe for connecting the lower reservoir and upper tank and provided with a pump for forcing oil, and a hand-valve located beneath said pump, a valved pipe for connecting thestove and intermediate feed-tank, and an overflowpipefor connecting the upper feed-tank and lower reservoir, said overflow-pipe being pro-j vided with a cock-and'transpareut panel, sub-' stantially as described.

4. The combination, with a railway-car, an oil-stove, an oil tank rreservoir, andoil-conveying pipes, of a spring-seated check-valvefor controlling the escape of-oil from said tank or reservoir, said check-valvebeing'held normally open by pressure of itsstem'against some fixed support, but adapted to closeautoinatically upon accidental displacement of the tank or reservoir, substantially as. de-

5. The combination, with a water-heating- I apparatus and circulatingpipes, of an expansion-chamber,-. aufoverflow or waste pi pe leading from the water-level of said chamber; and

ahand-valve, by use of which. any. surplus,

. water may be removed withoutcooling the I water in said.circulatingsystem.

6. The coinbinatiomwith a water-heating apparatus and circulating system, of an expansion-chamber, an overflow or waste pipe leading from thewater-level of said chamber, and a hand-valve for retaining the heated water at a proper level in said expansionchamber'while the apparatus is in use.

7. The combination, with a water-heating I apparatus and circulating-pipes, of an expansion-chamber, an overflow-pipe leading from the water-level of' said chamber, and a pump for replacing any loss of water in the circulating system, substantially as described.

8. The combination, with a water heatingand circulating system, of an expansion-chamber, an overflow-pipe leading from the waterlevel of said chamber and-provided with a cock and atransparent panel, and a pump for replacing any loss of water in the heating and circulating system, substantially as described.

9; The combination-of a water-heating a 13,?

paratus, circulating pip'es, an ex pansiouchamber connected with'the said circulatingpipes,a water-tank, an overflow-pipe for connecting said expansion-chamber'and tank, a

pipe for connecting the tank and circulating system, "and a pump for forcing water from said tank to replace any-loss of water in the heating or circulatin'g system, substantially as described, v

10. The combination of'awater heating ap' paratus, circulating-pipes 40, 41,- 43',.aud 44, a special fitting 42, connecting the upper ends of the pipes 40'and 41 and; provided with a "perforateddiaphragin57,theexpansion-cham- 'ber 46, pipe 58,'connec'ting saidexpansiom chamber and special fitting, anoverflow or Waste pipe lead ing from said expansion-chamber, and a pump for replacing anyloss of-wa- .ter in thecir'culating system, substantially as described.

'In testimony whereof Ihave affixed my si nature in presence of two witnesses.

JOHN Q. 0. SEARLE. Witnesses: V

ALBERT'H; NoRRis, "N.-R.' BAKER.

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