US933241A - Freight-car and heating appliance. - Google Patents

Description

' W. ELEASTMAN FREIGHT CAR AND HEATING APPLIANCE.

APPLIGATION FILED APR.B, 1905. RENEWED JULY 19 Patented Sept. 7, 1909.

O HEATER-O WILLIAM E. Eastman, or ros'ron, MASSACHUSETTS.

FREIGHT-GAR AND HEATING APPLIANCE.

i Specification of Letters Patent. 3 Patnted Sept, 7, 1909,

Application filed April 8, 1905, Serial No. 254,496; Renewed July 19, 1909. Serial No. 508,475.

I which t e followin is a specification.

My invention re ates to improvements in car heating systems and appliances to automatically supply liquid fuel to a burner to 1 maintain a red'etermined degree of warmth in the interior of freight cars'and to admit oxygen for proper combustion, said appliances being used in conjunction with the apparatus disclosed inmy Patents Nos. 405,663, of June 18, 1889, and 405,881, of June 25,

. 1889, wherein an automatic governor by export or feed t pension and contraction of certain of its parts regulates the fuel supply from a reservoir to which reference'may be had in connection with the presentinvention.

The objects of my improvedinvention are to provide apparatus to automatically gov cm the supply of: liquid fuel from-the reservein to the car heatin ap urtenances in a manner that the interior 0 the car may be kept at a uniform degree of warmth, to secure means for uninterrupted escape of productsof combustion and rotection of draft ipe, to simultaneously a mit the fuel to the urner and oxygen in proper volume to sup e fl'ame without thevnecessity of a skilled attendantand further to secure an increased heat radiation withina given area of surface. q V v It also embraces means for the protection of the liquid fuel, and in other essentials hereinafter described and specifically pointed out in the claims. I

Referring to the annexed drawing-Figure 1, is a side elevation of the end of a car, a part being broken away to exhibit'the pi e from the heater and its connectionwith tile smoke jack. Fig. 2, illustrates a longi-.

tudinal section of said, smoke jack. Flg. 3, exhibits a lan of part of the floor frame of a car, to s ow the location ofthehe'ater box and accessories together with the reservoir containing the liquid fuel. Fi 4, is a plan enlarged, of the'heater box an its contained apparatus comprising the heater-governor and mechanism cont-rolling the supply of fuel thereto. Fig. 5(ishows a front elevation of the heater, an fuel regulating appurtenances partlyin section. Fig. '6, is a scribed limits.

transverse section of theair chamber of the heater on dashed line A-- of Fig. 5, disclosing a plan of the register and its actuating'lever. Fig. 7 ,exhibits a transverse section of the pressure regulator on dashed line B- of Fig. 8. Fig.8, is a longitudinal central sectlon of said regulator. Fig. 9, is

a a side elevation, with a part in section, of the reservoir or tank contalning the liquid fuel, Wltll' the pressure regulator and connections theretoattached. Fig. 10, is a perspective of part of the tank to exhibit the supplementary casing.

Corresponding numerals designate similar features throughout the several views, refer ring to whicha 1 indicates the body of the car, and 2 the double flooring thereof, the space between the floors receives the pipe 3 leading from the heat radiator 4 to the smoke jack or exit *6 leadingfrom the car roof, said radiator is I accord-ion fluted to attain increased surface for maximum radiation of heat within pre- The improvements in said jack comprise the outside cylindrical casing 5 (Fig. 2) supporting the hood 6, and is lined with some non-conducting material, preferably asbestos, as at 7. Within this and exterior to the heat conveyor 3, are formed surrounding Warm air spaces or a chamber.

In the previous construction of such devices,

that portion of the exit 3 above the car roof being constantly exposed, the weather would afi'ect thedraft and retard by downward air currents the escape of the products of combustion, thus materially interfering with the temperature attempted to be maintained within the car. By the addition of the fea-' tures described, the exit is protected so that a proper draft is maintained unaffected by the outer temperature.

In Fig. 3, the fuel reservoir is designated 9 and is replenished preferably with petroleum through the filling orifice 10. A detachable supplementary casing 11 is further provided, with a private look, to prevent access to said reservoirdraw cock by unauthorized persons, and to revent purloining its contents when the car 1s standing.

2 (Fi 8) indicates a series of transverse vertical dash boards which obviate the agitation of the oil, and 13 represents the settling chamber provided at its bottom with a drip pipe and valve 14 through which the contents may be drawn off. At the junction of said chamber with the reservoir will be observed a concaved depression which assists restrictionof any sediment to ass to the chamber, access to which when esired is had through the hand hole 16.

A. feed lpipe. 1-7 admits the oil'from this chamber t rough an inside protective screen 7 18, to thepressure regulator 19 (Fig. 8) aucillatingv rod42supported in theframe.

tomatically feeding the heater, whence it follows the course through the ingress duct indicated. by arrows to the inclosedinterspace 20, the bottom of which is screened as indicated at 21 and provided with a port 22 closed-and o ened by the stem 23 forming a part of the oat 24 situated inside the regulator and supported by the oil which enters said port, a proper e uipoise of the float is provided with a strainer 34, thence the oil ows through thepipe 35 to the combustion chamber 36; the small pipe 37 permitting expulsion of any air existing in the sediment-cup. The regulator'thus equipped acts as an intermediary between the reservoir 9 and the heater, lessenin the pressure from the varyin -weight of 011 therein, and feeding it to t e combustion chamber under a constantly uniform pressure determined by thetemperature of the unequal expansion of certain parts of the overnor 51, described in my. aforementione patents.

To regulate the admission of oil to the heater from the pressure regulator, simultaneous with the admission of air to the combustion chamber, a suppl valve 38 having its stem supportedin t e standard 39 controls the passage in the pipe 32, and is operated by the tie-bar 40 connected to said stem, throu hthe manually actuated reversible hand Fever 41 secured to the top or forming an integral part of the verticalToshe circular foot 43 of this rod carries-a pin 44 I positioned in. a slot 45 (Fig. 6) in the con- I retaining the heat in the car to a len tiguous end? of the swing-arm 46 fulcrumed tothe-base of the casin asat 47 (Fig. 5) its opposite endbeing simi arly connected to the register or air valve 48 and by which said register is opened and closed to assist in the combustion and also the extinction of the flame. It is important also to exclude the entrance of cold: air to the interior of the car at the moment the fire is extinguished thus hened period; To circumscribe the movement of the hand lever 41, a lug 49 (Fig. 5) projects therefrom, which, when said handle is turned to the left (indicated. in dotted lines Fig. 4)

co-acts with the stop 50- on the standard 39 and in this position permits the flow of oil through the valve 38 and also turns the register on its axis to admit the air draft to the flame. When said handle is turned to the extreme right (as illustrated) the valve and register are closed, the flow of oil ceases,

the flame is extinguished and the cold air excluded. The automatic control of thesefeatures eliminates av variable heating quantity, and insures immunity from over or un- 1. The combination with a reservoir provided with a settling chamber having an interior depression to restrict sediment and an outflow ipe, of a pressure regulator receiving sai pipe and provided with means to lessen the pressure from the var'yi weight of liquid fuel in said reservoir an fee mg it to a combustion chamber with uniform pressure, a heater, and means to furnish air for combustion and simultaneously to exclude cold air from the interior of the car when the fire is extinguished.

2. In ap liances for heating freight cars with liqui fuel, the combination with a liqluid fuel elevated reservoir, of a detachab e supplementary casin adapted to hold sediment, a draw off coc therein situated and means to prevent access thereto by unauthorized ersons. v

- 3. A heating apparatus for freight cars, com rising in combination, a heater, a smo e flue inclosed the length of the car, a heat radiator interposed between said flue and heater, a fuel reservoir, means for automaticall regulating the pressure of said fuel as it is fed to said heater, and a governor for proportioning simultaneousl the air and fuel to form the mixture to be ed to said heater.

4. A heating ap aratus for freight cars comprising in com ination with a frei ht car, a heater adapted to burn li uid fue, a radiator connected therewith, a el supply tank suspended from the top of the car means for regulating the pressure of sai fuel to said heater, means for simultaneously operating the draft mechanism of the stove and the uel feeding mechanism to regulate the combustible mixture.

5. A heating apparatus for freight cars comprising in combination with a compartment in said car, a heater located therein adapted to burn liquid fuel, a radiator connected with said heater, a fuel tank suspended without said compartment, means for regulating the pressure of said fuel to said heater and means for simultaneously operating the draft mechanism of the heater and the fuel feeding mechanism, whereby to regulate the combustible mixture.

6. A heating apparatus for freight cars, comprising in combination with a compartment in the car, a heater, a smoke flue inclosed from said compartment to the end of the car, a heat radiator interposed between said flue and heater, a fuel reservoir without said compartment, means for automaticall re lating the pressure of saidfuel as it 1s fed to said heater and a goiernor for proportioning simultaneously the air and fuel to form the mixture to be fed to said heater.

Signed at Boston this 14th day of March WILLIAM E. EASTMAN.

' Witnesses: V

H. E. REMICK, Jr., CHARLES F. RICHARDSON.

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