US1311783A - Planoabapii co - Google Patents

Description

H. H. VAUGHAN.

SYSTEMDF HEAT GENERATION AND DISTRIBUTION FOR RAILWAY CARS.

APPLICATION FILED NOV. 29. I9I5.

Patented July 29, 1919.

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H. H. VAUGHAN.

SYSTEM OF HEAT GENERATION AND DISTRIBUTION FOR RAILWAY CARS.

APPLICATION FILED NOV. 29. mm.

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H. H. VAUGHAN.

SYSTEM OF HEAT GENERATION AND DISTRIBUTION FOR RAILWAY CARS.

APPLICATION FILED NOV. 29. IBIS 1,311,783.

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H. H. VAUGHAN.

SYSTEM OF HEAT GENERATION AND DISIRIBUTION FOH RAIL WAY CARS.

APPLICATION FILED NOV. 29. l9l5.

1 ,3 1 1 ,783. Patnted July 29, 1919.

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H. H. VAUGHAN.

SYSTEM OF HEAT GENERATION AND DISIRIBUTION FOR RAILWAY CARS.

APPLICATION FILED Nov.29. ms.

1,311,783. Patented July 29, 1919.

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HENRY H. VAUGHAN, O-F MONTREAL, QUEBEC, CANADA.

' SYSTEM OF HEAT G ENERATION AND DISTRIBUTION" 'FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented July 29, 1919.

Applicationnled November 29, 1915. Serial No; 64,097.

T0 all whom itmay 0011001 12 Be it known that I, I-lmnn H. VAUGHAN, acitizen of the United States, residingat Montreal, in the Province oiVQuebec, Domi-niono-f Canada, 'have invented certain new and useful Improvements in Systems of Heat. Generation and i Distribution for Railway-Cars, of'w-hich the following is a specification.

My invention relates to a system of heat generation and distribution, and the principal object of the invention is toprovide an improved apparatus of this sort for-use particularly in dining cars, private cars, and the like, furnished with cooking devices, requiring a heating medium at-ccrtaln times, as well as withradiators for heating the car duringcold weather. The invention contemplates the employment, wherever possible, 0f steam taken from the steam train line, that is, fromthe supply pipe running the length of'thc train and receiving its supply of steam from the locomotive: Cars of the type mentioned are, however, l1kely to stand disconnected from a locomotive for considerable periods of time, during which they may be occupied so as to require heating medium either for cooking or general heating purposes, or both. The invention, therefore, provides, in its preferred embodiment, a closed hot water circulating system for keeping the car at a proper temperature during cold weather and a local steam generator, which may be used when train line steam is not available, for generating; steam forheating the water in the water circulatory system and also for supplying steam and water of condensation to the cooking devices.

"The invention has for a further object to provide certain new and useful improvements in a steam generator for use in asystem of the type above described or-in analogous situations.

With the above stated *ob 'ects in view, my invention consists in the novel and improved devices, arrangements and constructions in a heat generating and distributing system for railway cars which will be hereinafter described and claimed.

The invention is illustrated, in certain preferred embodiments;=in the accompanying drawings where1n- Figure 1 is a diagrammatic representation of a dining can furnishedwlth a generating and distributing system constructed according to the principles of my invention; the car being shownin plan section-andcertain parts of the heatingsystem in plan and others in elevation.

Fig. 2 is a sectional'elevation, on 'an'enlarged scale, of the steam "generator, the cooking devices and certain othcr' related elements of the system.

Fig. 3 is a fragmentar vertical sectional view of the upper portion of the generator.

Fig. 4 is a sectional plan online of Fig.

Fig. 5 isa detail view; in elevation, of the lever for operating certain of the valves or dampers of the generator. v

Fig. 6 is aview, similar to Fig. 2, illustrating a modification.

Fig. 7 is a-vertical sectionalview illustrating the'constructionoi? one of the two pairs of valves en iployed in the modified system shown in Fig; 6 for'preventing circulation through the water circulatory system at such'times as the car does notrequire artificial heating.

' Fig. 8 is a sectional view taken onli-ne 88 ofFig. 7, and

Fig. 9 is a view, similar to Fig. 6, illustrating another modification.

-- Like characters of reference designate like parts in the several figures of the drawings.

Referring first to Figs. 1. to 5- inclusive, 10 designates a dining car of which 11 is the (lining-room section and 121.110 kitchen section. 13 is the steam train pipe which runs the length of the train'and receives steam; from the locomotive. '14, 14 are water circulating coils orradiators,and' 15, 15 their respective expansion tanks- The water'for the water circulatory systcm,"consisting 'of radiators 14, 14, is heated by means of steam taken from the train pipe 12-), when steam isavailable fronrthis source, or when not so available, by local steam generated by the steam generator 16. The steam heating device for heating the water in this manner consists preferably of water coils 17, 17 through which extend steam coils'lS. 18 which are connected by pipes 19, 20 with the train pipe 13 and by pipes 19, 21 with the steam space 22 in the boiler 23 of thegenerator. The generator is preferably formed with an inner 1111024 and an outer flue '25, and the duplex coils 1 7", 17*, 18,18

are located in the outer flue. Suitable valves or dampers are provided 'for the purpose of directing the gases of combustion from the fire box 26 of the generator into either the inner flue or the outer flue. When the water circulatory system is in operation, that is, during winter weather, the heat from the generator passes to the stack flue 27 through the outer connecting flue 25, and by coming into contact with the water coils 17, 17 assists the steam in heat ing the water therein In warm weather, when the system is used only for cooking purposes, the products of combustion are excluded from the outer flue and from contact with the water heating coils nd pass to the stack through the inner flue 24. With these ends in view, the annular member 28, which separates the outer flue 25 from the inner flue 24, is provided with openings 29 adapted to be closed by a damper 30 manipulated by a handle 31 which extends through a slot 32 in the outer wall 33 of the upper portion of the generator. The inner flue is provided at the bottom with a damper 34 carried on a rod 35 which extends through the cylindrical member 36 defining the inner flue and through the wall 33, and is provided with a handle 37 having a slight rocking movement to and from the wall of the generator. The handle is pressed by a spring 38 and is formed with a tooth 39 adapted to engage with one or other of the openings 40 formed in a plate 41 on the side of the generator. In telescopic relation with the upper end of the cylindrical member 36 is a sleeve 42 adapted to aline with the stack flue 43 of the generator. The sleeve 42 is connected by a link 44 and cross piece 45 with the damper 34. When the damper 34 is open sleeve 42 is raised so as to shut off communication between the outer connecting flue 25 and the stack flue 43. 7 When damper 34 is closed the sleeve 42 is lowered to a position which will permit the gases of combustion to pass from the outer connecting flue 25 into flue 43. The cooking devices which, in the preferred arrangement shown, consist of a steam cooker 46, a cup warmer 47, a bain marie 48, a steam table 49, and a steam kettle 50, are heated by steam, and water of condensation, taken from the steam generator through pipe 19*, which is a continuation of pipe 19, the steam passages of the devices 46, 47, 48, 49, being connected together and the Water of condensation from the steam table 49 being returned to the boiler 23 of the generator by pipe 51. The steam kettle 50 is connected to pipe 19 by a pipe 52 and discharges into pipe 51 through a pipe 53. The latter is provided with a check valve 54 which prevents pressure in the steam boiler from backing the water of condensation into the steam kettle above the water level in the boiler. Pipe 51 is pro vided with a similar check valve 55. The steam coils of the water heating device 18, 18 discharge into a pipe 56 Which runs to pipe 51. A pipe 57 leads from pipe 56 to a steam trap 58 under the floor of the car.

Pipe 57 is connected with pipe 21 by a short gage 63 and steam pressure gage 64. Pipes 19, 20, 21, 19 51, 57 and are provided with shutoff valves numbered respectively 65,. 66, 67, 68, 69,70 and 71.

The operation of the apparatus above described is as follows: When train pipe steam is available, valves 66 and 70 are opened and valves 67 and 69 closed.

If the car is to be heated (as in winter) steam flows from the train pipe 13 and pipe 20 through pipe 19, valve being opened, and the steam coils 18, 18 Water 01 condensation is discharged through pipes 56, 57 and trap 58. If steam is required for the steam cooking devices 46, 47, 48, 49, 50 (which with their connecting conduits Will be termed, somewhat arbitrarily, in certain of the claims, the steam circulatory system) valve 68 is opened and steam from pipe 20 flows through pipe 19 to the cooking devices, the water of condensation outflowing through pipes 51, 53, 56, and thence into pipe 57 leading to the trap. Certain of the steam cooking devices, for example the devices" 48, 49, 50, are heated in whole or in part by water of condensation. For this reason the pipe 57 taps pipe 56 at the water level of the system, that is to say, the normal water level in the boiler 23 of generator 16.

When the car is cut off from a train and train pipe steam is no longer obtainable, steam is generated in the generator bylighting a fire in the fire box 26. Under these conditions valves 66 and 70 are closed and valves 67, 69 opened. For heating the water in the radiators 14, 14, steam passes from the boiler 23 through pipes 21 to pipe 19 and thence through the steam coils 18, 18*, water of condensation being returned to the boiler through pipes 56 and 51.

Steam for the cooking devices enters pipe 19 from pipe 20. Water of condensation is returned to the boiler through pipe 51.

Thus when operating with steam generated in the generator the system is a closed system, the water of condensation being saved and returned to the generator. When operating with steam taken from the train pipe the water of condensation is discharged to the atmosphere. It might, of course, if desired, be returned to some suitable storage tank. In any event, it is discharged outof the system. Water losses, which may occur when the system is operated as a closed sys tem, may be replenished by operating pump 61. Check valve 62, in such case, prevents waterfrom being forced back into the cooking devices.

In the arrangement shown in Figs. 1 to 5 inclusive, the steam heating device, consisting of coils 17, 17 18, 18, is located in a flue or space 25 between the combustion chamber 26 of the generator and the stack llue 27 so that .heat from the generator will come into contact with the water coils, thereby assisting the steam in heating the water in said coils. In such case, damper 34 is closed and sleeve 42 lowered and damper 30 opened. lVhen no artificial heat is required for the ear the damper 3% is opened, damper 3O closed and sleeve 42 raised so. that the products of combustion pass through the inner flue 24 and do not heat the water coil.

This same result is obtained in a different way by the modified apparatus shown in Fig. 6. In this case the generator 72 has a single flue or space 73 in which the duplex water coil 7st is located so that whenever fire is lighted in the generator the water in the coil 74 is necessarily heated. The Water, however, is prevented from circulating through the radiators, the connecting pipes of which are designated 75, 76 and 77, 78, by two pairs of valves, one pair for each radiator. These valves are the same for each radiator, the construction of one air, that for pipe 75, 76, being shown in Iigs. 7 and 8. a 7 9 is a valve casing interposed in pipe 7 5, and 7 9 a similar casing interposed in pipe 76. The valve casings are connected by a pipe section 80. In the casings are revoluble valve bodies 81, 81 formed with ports 82, 82 and branch ports 83, 83*. The valve'bodies are provided with handles 84. With the valves in the position shown in Fig. 7 the water heated in coils 74 will circulatethrough the radiator connected with pipes 75,76. With the valves turned at right angles tothe position shown in Fig. 7 in,the,c lirection, in each case, indicated by the curved arrows outside the valve casings, the water from the water coil 7 4: will pass from one valvethrough connecting pipe to the other valve and back to the heating coil.

IIn. other respects the system, so 'far as shown in Fig. 6, is the same as that shown in the previous figures. The corresponding parts shown in Fig. 6. are designated by corresponding numerals.

A further modification is shown in Fig. 9. The water heating coil 85 is arr: nged outside of the generator 86. It therefore receives comparatively little heat, the heating of .the water being accomplished almost exclusively by the steam generated in 6e; the enerator. The arrangement, however,

has the advantage that the coil can be made larger in diameter and hence its vertical di inension may be diminished. It also may be arranged nearer the floor so that the water circulation from the coil to the expansion tanks 87, 88 is increased whereby a quicker circulation through the radiators is obtained.

In this modification, the construction, except in the respects above described. is the same as in the preceding figures so that the elements of the system shown but not described have been given the same reference numerals as the corresponding parts in the previously described construction.

lVhile I have described my invention in. certain preferred embodiments, it will be understood that further modifications might be made without departure from the principles of the invention. Therefore I do not wish to be understood as limiting the invention to the precise constructions, arrangements and devices shown and described except so far as the claims are specifically so limited.

I claim:

1. In a heat generating and distributing apparatus for a railway car, the combination of a water circulating system, a st 1am generator having a fire box, boiler and two lines; a steam circulatory system and a steam heating device for the water system adapted to receive steam from the boiler of the generator separately or conjointly; the heating device being arranged in one of the fines of said generator; and means for direc-ting gases of combustion from the fire box of the generator through either one or the other of said fines, as desired.

2. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator having a fire box, boiler and two lines; a closed water coil in one of said flucs, a steam operated heating device for said coil in. the same flue adapted to receive steam from the boiler of said generator, and means for directing gases oi combustion from'the fire box of the generator through either one or other of said flues, as desired.

3. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator, a steam operated water heating device adapted to receive steam from said generator, and means for directing heat from the generator against the water heater or away from the same, as desired.

1. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator having a fire box, a boiler, an inner flue and an outer flue; means for directing gases of combustion into eitherthe inner flue or the outer fine; and a duplex water heating coil in one of said fiues consisting of a water pipe and within the same a steam pipe, the latter being connected with the boiler the generator.

5. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator having a fire box, a boiler, an inner flue and an outer flue; means for directing gases of combustion into either the inner flue or the outer flue; and a duplex water heating coil in the outer flue consisting of a water pipe and, within the same, a steam pipe, the latter being connected with the boiler of the generator.

6. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator having a fire boX, a boiler, an inner flue, an outer flue, and a stackflue which latter extends through the roof of the car; means for putting either the inner or outer flue in communication with the fire box and the stack flue and excluding gases of combustion from the other of said first named fines; and a duplex water heating coil in the outside flue consisting of a water pipe and within the same a steam pipe which is connected with the boiler of the generator.

7. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator comprising a fire box, a boiler, inner and outer flues, and a stack flue, a damper in the bottom of the inner flue, a sleeve at the upper end of the inner flue connected with said damper so as to be raised and lowered to put the inner and outer fiues respectively, in communication with the stack flues, a damper to control the flow of gases from the combustion chamber to the outer flue, and a duplex water heating coil in the outer flue consisting of a water pipe, and a steam pipe within the water pipe which is connected with the boiler of the generator.

8. In a heat generating and distributing apparatus for a railway car, the combination of a steam generator having a fire box, a boiler and a fine, a duplex water heating coil arranged in said flue comprising a water pipe and a steam pipe within the water pipe which is connected with the boiler !of said generator.

9. In a heat generating and distributing apparatus for a railway car, the combination of a steam train pipe, a hot water circulatory system, a steam generator, a steam circulatory system adapted to receive steam either from the generator or the train pipe, and a steam heating device for the water system adapted to receive steam from the generator or the train pipe and arranged so as to receive heat directly from the generator.

10. In a heat generatingand distributing apparatus for a railway car, the combina tion of a steam train pipe, a hot water circulatory system, a steam generator, a steam circulatory system ad apated to receive steam either from the generator or the train pipe, and a steam heating device for the water system adapted to receive steam from the generator or the train pipe and arranged so that heat from the generator may-be directed against the same or away from the same, as desired.

11. In a heat generating and distributing apparatus for a railway car, the combination of a train pipe, a steam generator, and a steam operated water heating device arranged so as to receive heat directly from the generator and to be supplied additionally with steam therefrom or from said train pipe.

12. The combination with a railway car, of a steam train pipe, a hot water radiator in the car, a steam cooking apparatus in the car, a steam operated device for heating water for the water radiator, a steam generator, means for supplying steam to said heating device and cooking apparatus from either the train pipe orthe steam generator, a return pipe for returning water of condensation to the boiler of the generator when the latter is in operation, a steam trap for discharging water of condensation when steam is taken from the train pipe, and a pipe leading to the trap which taps said return pipe at the normal water level of the boiler of the generator.

13. The combination with a railway car and steam train pipe, of the following instrumentalities located in the car, namely, a water circulatory system, a local steam generator, a heating device for heating the water of the water circulatory system which employs steam as its heating medium, means whereby steam may be supplied to said heating device either from the local steam generator or from the train pipe, as desired, a discharge device forwater of condensation from the heating device, and means whereby said water of condensation may be returned to the boiler of the local steam genera-tor or discharged through said discharge device.

14. The combination with a railway car and steam train pipe, of the following instrumentalities located in the car, namely, a water circulatory system, a local steam generator, a heating device for heating the water of the water circulatory system which employs steam as its heating medium, a separate steam circulatory system, and means whereby steam may be supplied to said heating device or to said steam circulatory system, or to either of them, either from the local steam'generator or from the train pipe, as desired.

15. The combination with a railway car and steam train pipe, of a water circulatory system in the car, a local steam generator,

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a'heating device for heating the water of the Water circulatory system which employs steam as its heating medium, a separate steam circulatory system, and means whereby steam may be supplied to saidheating device or to said ste'anr circulatory vsystem, or to either of them, either from the local steam generator or from the train pipe, as desired, -a discharge device for water of condensation from said heating device and steam circulatory system, or either of them, and means whereby said Water of condensation may be returned to the boiler of the local steam generator or discharged through said discharge device.

16. The combination with a railway car and steam train pipe, of a water circulatory system in the car, a local steam generator, a heating device for heating the water of the water circulatory system which employs steam as its heating medium, a separate steam circulatory system, means whereby steam may be supplied to said heating device or to said steam circulatory system, or either of them, either from the steam generator or from the train pipe, as desired, and means for maintaining water of condensation at a constant level in said separate steam circulatory system.

17. The combination with a railway car and steam train pipe, of a water circulatory system in the car, a local steam generator, a heating device for heating the water of the water circulatory system which employs steam as its heatin medium, means whereby steam may be supp ied to said heating device either from the local steam generator or from the train pipe, as desired, said heating device being located so that it may be heated directly by the fire in said generator, and means whereby the heat from the local steam generator fire may be deflected from said heating device so that it does not come into direct contact therewith.

18. The combination with a railway car and steam train pipe, of a closed water circulatory system comprising radiating pipes and a coil in which the water is heated, a local steam generator comprising a firebox and a boiler, the latter providing a space for water and steam, steam cooking apparatus, a steam coil for heating the water in said water coil, pipe connections having shut-ofl' valves whereby steam may be supplied to the steam coil or to the cooking apparatus or to both from either the local steam generator or from the train pipe, a discharge device for water of condensation and pipe connections having shut-off valves whereby water of condensation from the steam coil or steam cooking apparatus can be either returned to the boiler of the local steam generator or discharqed'through said discharge device.

19. The combination with a railway car and steam train pipe, of a closed water citculatory system comprising radiating pipes and a coil in whichthe water is heated, a local steam generator comprising a firebox and a boiler, the latter providing a space for water and steam, steam cooking apparatus arranged so that a part of the same is below the normal water level in the boiler o'fthc local steam generator, a steam coil for heating the water in said water coil, pipe connections having shut-oil valves whereby steam may be supplied to the steam coil or to the cooking apparatus or to both from either the local steam generator or from the train pipe, at discharge device for water of condensation and pipe connections having shut-oil valves whereby water of condensation from the steam coil or steam cooking apparatus can be either returned to the boiler of the local steam generator or discharged through said discharge device, said discharge device being arranged to receive water of condensation at a level substantially that of the water level in the boiler so that water is maintained at a constant level in the cooking apparatus whether such apparatus be supplied from the train pipe or from the local steam generator.

20. The combination with a railway car and steam train pipe, of a closed water circulatory system comprising radiating pipes and a coil in which the water is heated, a local steam generator comprising a fire-box and a boiler, the latter providing a space for water 7 from the train pipe, at discharge device for water of condensation and pipe connections having shut-ofi valves whereby water of condensation from the steam coil or steam cooking apparatus can be either returned to the boiler of the local steam generator or discharged through said discharge device; said water coil being located within the local steam generator so that it may receive heat directly therefrom as well as from the steam generated thereby.

21. The combination with a railway car and steam train pipe, of a closed water circulatory system comprising radiating pipes and a coil in which the water is heated, a local steam generator comprising a fire-box and a boiler, the latter providing a space for water and steam, steam cooking apparatus, a steam coil for heating the water in said water coil, pipe connections having shut-off valves whereby steam may be supplied to the steam coil or to the cooking apparatus or to both from either the local steam generator or from the train pipe, a discharge device for water of condensation, ipe connections having shut-ofi' valves where y water of condensation from the steam coil or steam cookwater from being forced backwardly into ing apparatus can be either returned to the the cooking apparatus.

- boiler of the local steam generator or dis- HENRY H VAUGHAN.

charged through said discharge device, a

water supply tank, a pump for forcing water Witnesses:

thereform into the water space of the local GORDON G. CooKE, generator, and a check valve to prevent DAVID ROBERGEL Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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