US1432087A - Combined oil and gas furnace - Google Patents

Description

E. A. QUINN.

COMBINED OIL AND GAS FURNACE. APPUCATION man Nov so. |921.

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)im H MVENTOR 7 wha/MM ATTCORNEY Patented @cto l?,

narran realer CMBENED @EL AND GAS FURNACE.

Application filed November 30, 1921. Serial No. 518,935.

To all whomt may concern Be it known that l, ldnevann QUrNN, a citizen of the United States, and resident ot' Fresno, in the county of Fresno'and the State of California, have invented a new and useful linprovement in Combined @il and Gas Furnaces, ol which the following is a specification. i

My invention relates to an improved type of furnace wherein either oil orgas can be used for fuel. The object l have accomplished is the construction of a combination furnace in which manufactured or natural gas can be used economic-ally as fuel, and if it is desired oil can be substituted, and heat developed `from one burner will not overheat or melt the other burner.

l attain these objects bythe device here inalter described and illustrated in the accompanying drawings, in which Figure 1 is a plan. view of the furnace showing the two burners within the combustion chamber.. Figure 2 is an elevation of the device, partly in section along broken line oi--a in Figure 1, showing the location of tiles in which the gas is discharged. rlhis view also shows location oit oil burner in relation to the gas burners. Figure 3 is a iront elevation along sectional line but) in Figure 1. Figure Ll is al sectional elevation ot two gas burners. Figure 5 is a view ot a tile. Figure (5 is a cross sectional View of the tile along the line c-c in lligure 5. Similar reference characters refer to similar parts throughout the several views.

Branch'header 1 is connected to source of fuel supply 2, and is supported by rods 3, the ends ol which are supported by the tur nacey walls. Nipples l are connected to branch header 1 as shown more definitely in Figure il, their ends being closed'by caps 5, in order to force the gas to flow through small hole or opening 6 in nipple a. A tile T is set overeach nipple ll, a longitudinal slot 8 'being provided in the bottom of tiles 7 for the purpose of easily assembling the nipples and the tiles. position by brick floor 9, said floor resting on supporting rods 3a. Floor 9 is constructed to the tops of the tiling. @n the top of floor 9 is a course of lire bricks 10 arranged to leave apertures above the openings in the tiling.l lt is here noted that the lloor 9 is on an incline which rises as it recedes from the oil burner ll. llllhen it is neces- 'llles 7 are held insary to use oil burner 14 the flame and heat are reflected upward by said floor.

ll have placed a courseof soap bricks 11 on the top of the lire bricks 10, and over the openings in the tiles, thus forming an open space 12 shown in Figure 3. Soap bricks 11 form a baille for the llame and gas coming out of the tiling. @ne object being accomplished thereby is the breaking up of the gas vand thus aiding combustion. @penings in the floor except the openings 12 referredl to are filled in with asbestos and clay.

'lhe tile 7 has a plurality of holes 13. in a circumferential line on the same plane as the center line ofthe nipple 4, as shown in Figure 5. rl`he function of holes 13 is to admit air to aid combustion. The shutters 18 are hingedto rod or pipe 3, and are ad justable by a chain or rod 18a.

The oil burner 14- is placed in a compartment or alcove 15 at the back of the furnace, and so placed as to direct the flame over the soap brick ballles 11, as the Haine and heat natural relect upwardly, the object of this construction being to carry the flame beyond the alcove. rlhe fuel supply pipe 16 to the oil burner is supported by rods 17, and is connected with a source ol oil supply 26. 26a is a valve for regulating the supply of oil admitted to the burner. 2b is a valve for regulating the supply of gas admitted to the furnace. The combustion chamber is constructed of concrete and fire brick. rllhe rods or pipes 3 and 17 are. supported by hre brick walls.

l claim as new and ask for Letters Patent:

1. The combination within a combustion chamber of an oil burner adapted to direct a Haine in an 'approximately horizontal plane a spaced distance therefrom, and a plurality ot gas burnerseach of the gas burners being housed within a tiling arranged so the tops thereof are on an incline which rises as it recedes from the oil burner, the tops of the tiling being covered with refractory1 material except outlet openings for the llame generated within said tiling, substantially as described.

2. rThe combination within a combustion chamber of an oil burner adapted to direct a llame in an approximately horizontal plane a spaced distance therefrom, and a plurality ot' gas burners, each of the gas burners being housed within a tiling arranged so the tops thereof are ,on a line uniformly rising from said horizontal plane as they recede from the oil burner, the tops of the tiling being covered with refractory material except outlet openings for the flame generated Within said tiling, the combustion chamber being filled with `noncombustib1e material to the approximate tops of the tiling, leads for supplying air to the interior of the tiling, substantially as described.

3. VIn combination with a combustion chamber, a gas burner Withinsaid chamber consisting of upright tubes of refractory material, means for discharging a jet of gasl Within each of said tubes, a plurality of holes through the Walls of the tubes adjacent to the position where the as is discharged, said tubes being partially covered at the top with refractory material, the tubes being arranged so that the level of the tops of the tubes to the rear of the furnace are lower than those near the front of the combustion chamber, and an oil burner Within the combustion chamber at the rear end thereof adapted to throw a flame over the top of the tubes, substantially as described.

i 'EDWARD A. QUINN.

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