US1774244A - Oil stove - Google Patents

Description

Aug. 26,1930.

A. C. -SLADKY ET'AL OIL STOVE Filed Feb. 6, 1926 4 Sheets-Sheet 1 A/sxaaif Aug. 26, 1930.

A. C. SLADKY ET AL OIL STOVE Filed Feb. 1,926 4-Sheets-Shee'c 3 Aug. 26, 1930. c, SLADKY ET AL 7 1,774,244

' OIL STOVE Filed Feb. 1926 4 Sheets-Sheet 4 Patented Aug.'26, 1930 UNITED STATES PATENT FJFICE orL s'rovn Application filed February This invention relates to oil. stoves. Objects of this invention are to provide a portable oil stove which does not have the defects heretofore present in portable oil.

1 J 5 stoves.

In stoves of this type it has heretofore been the practice to provide either a single generator for. the mainburner from which the other burners receive their mixture of gas and air, or else to provide an individual generator for each burner.

In the first case, whenever the additional burners are turned on they take so much mixture away from the main burner that its characteristics greatly interfered with. -In

the second place it is necessary to heat each generator whenever an additional burner is to be thrown in.

This invention is designed'to overcome the defects noted above in connection with the two standard forms,'and one of the main objects of this invention is to provide an oil stove which is so constructed that the beneficial features of each of .the two main classes are retained while their defects are avoided. Further objects are to provide an oil stove which may be readily made in a portable form, which will provide an intense heat'for each of the burners, which has a single gen erator adj acentthe main burner and adapted to supply either one or all of the burners without affecting the heating capacity of any of the burners irrespective of the number of burners which may be turned on.

Further objects are to provide a novel form of hand wheel. which will not become hot due to conduction, and to.provide a novel form of shield for preventing radiation of heat to the hand wheel.

An embodiment of the invention is shown in the accompanying drawings, in which Figure l is a plan View of thestove with parts broken away.

Figure 2 is a sectional View on the line,

Figure 4 isa front view thereof with parts broken away.

flame is materially lowered and its heating 'dicated generally at 6. This bottom member I ing 8, it entrains air and this mixture passes c, 1926. Serial No; eases.

Figure 5 is a sectional View on the line 5-5 of Figure 6.

. Figure 6 is a sectional view 1 on the line 66 of Figure 5. 7

Figure 7 is a plan view of the structure 5 shown in Figure 6 with parts broken away. Referring to the drawings, it will be seen that the stove comprises a frame formed of apair of main channelirons 1 which are carried by angle iron uprights'Q, such angle iron uprights forming the legs. The stove is provided with a top 3 which is suitably cut out above the burners. It carries a tank 4 for the gasolene or' other fuel.

It is to be noted that the burners are held between the main channel frame bars 1, as shown in Figure 6, by means of screws which pass into the burners. It is preferable to construct these burners of abottom member and a top member. For example, in connection with the central burner, as shown in section in Figure 6, the bottom member is indicated at 5 and is fitted to the top member inis provided with anopening or cavity 7 comr municating' with the outside air by means of. a restricted opening 8 opposite the needle valve 9. hen the needle valve is opened and fuel is projected in the form of gas into the openup into the body oft-he burner -6. I

The body of the burner 6 is provided with an annular passageway 10 into which the mixture empties, such mixture passing outward ly throughsuitable openings-in the burner, as indicated in Figure 7 Preferably, this central burner is provided with a diametrically extending passageway 11 which is located'beneath the generator 12. v (See Figure 6.) This gener'atori12 is in reality merely a relatively large pipe having a downwardly curved portion joining the supply pipe 13 eX- tending from the supply tank 4. It is to be noted that a cutoff valve 1 1- is provided at the supply tank so that the line 13 may be completely vcut off when desired. The ,generator 12 opens into the small downwardly extendingpassageway 15 formedin the body 16 of the three control valves for the three- 05 burners for the form indicated in the drawv of the nozzles.

lngs.

The body portion 16 is provided with branch passageways 17 which communicate with the passageway and lead to the other needle valves indicated at 18 and 19. These needle valves are adapted to project a high speed gas stream into the openings 20 and 21 communicating with the cavities 22 and 23. These cavities are connected by pipes with the end burners 24 and 25.

It is to be noted from referenceto Figures 5 and 6, that the central valve controls communication between the inlet duct 15 and the branch ducts 1'? as well as its own nozzle 9. Thus, when the central valve is closed no fuel can pass from the supply duct 15 to any It is to be particularly noted that the opening in the end of the nozzle 9 is just sufficient size to control or supply fuel for the maximum flame for the central burner which heats the generator.

g This construction of valves prevents the passage of any iquid fuel to either of the outer burners, as no flow of fuel can occur unless the burner associated with the generator is itself supplied with fuel.

The needle valves are controlled in the usual way by means of threaded valve stems 26. These valve stems are all alike and one only need, therefore, be described.

This valve stem differs from the conventional stem in the mode of attachment of the hand wheel 27 thereto. This hand wheel is provided with a spaced strap 28 whose feet are secured to the hand wheel body. This strap is apertured to receive the threaded end 29 of a spindle 26. It also is slightly channelled orrecessed to receive a transverse pin 30which is passed through the stem 26, as shown in Figure 6. Thereafter, a nut 81 is screwed upon the threaded portion 29 and clamps the strap 28 tightly against the pin 30, thus locking the hand wheel to the stem and also causing the hand wheel to be spaced from the stem. This prevents conduction of heat from the stem to the hand wheel has heretofore been thecase.

The protection against heating of the hand wheels is enhanced by means of the shield 32 (see Figures 2 and i) such shield extending downwardly and inwardly and. preventing heated air from passing into contact with the hand wheels.

It will be seen that each burner independently forms a combustible mixture of air and gas, although each of the burners is supplied with gas from a single generator. Thus the burners may be accurately adjusted to the exact requirements for the individual burners by means of their hand wheels and the height of flame and intensity of heat of the one burner will not be affected by throwing in another burner, as heretofore has been the case.

for feeding the oil in the generator.

Inasmuch as only one generator is employed, it is not necessary to separately and individually heat a plurality of generators whenever a plurality of burners are to be used. Any suitable means maybe employed For instance, compressed air may be supplied the tank in any suitable manner as, for instance, through a fitting 33 (see Figure 4), a suitable filling cap 34 being provided for the tank.

It will be seen that a very simple and serviceable type of oil stove has been provided by this invention, and although a single generator is employed with the advantages incident thereto, none of the defects heretofore found in oil stoves are retained in this new form of oil stove, and the burners may be independently thrown in or out of action without affecting the adiusti'nent of any other burner.

Although the invention has been described in considerable detail, such description is intended as illustrative rather than limiting as the invention may be variously embodied and as the scope of such invention is to be determined as claimed.

lVe claim:

In an oil stove, a burner includin an upper and a lower casting, said upper casting having an annular passage and a lon itudinal passage communicating at diarnctrical points with the annular passage and having aplurality of openings in the top thereof communicating with the said passages, a generator lying parallel with and above the longitudinal passage and crossing the annular passage, said lower casting having a central longitudinal cavity comnnmicating at one end with the annular and having a fuel receiving opening in the other end, said lower casting having an angular passage at each side of the central ca ity with a slightly curved intermediate part and each having a fuel receiving o iiening adjacent the fuel receiving opening of the cavity.

In testimony that we claim the foregoing we have hereunto our hands at h'lilwanlzee, in the county'of liililwaulree and State of iifisconsin.

ALEXANDER C. SLADKY. JOSEPH SLADKY.

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