US626558A - Rad oehlmann - Google Patents

Rad oehlmann Download PDF

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US626558A
US626558A US626558DA US626558A US 626558 A US626558 A US 626558A US 626558D A US626558D A US 626558DA US 626558 A US626558 A US 626558A
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gas
air
valve
oehlmann
flame
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
    • F23D11/26—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed
    • F23D11/30—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed with return feed of uncombusted sprayed fuel to reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C5/00—Stoves or ranges for liquid fuels
    • F24C5/18—Liquid-fuel supply arrangements forming parts of stoves or ranges

Definitions

  • NORRIS warns co morofima WASHINGTON, n cy lhvirnn STATES PATENT UFFICE.
  • This invention relates to gas-lighting apparatus of that class in which compressed air is used for raising the illuminating power of the as.
  • the object of the invention is to provide an automatic gas shut-oft arranged below the burner, which shut-off is worked by com pressed air in such a way that at the formation of the flame the compressed air rushes with such force through the mixing-chamber and burner that the backlash of the flame and the explosive noise which is often produced thereby are prevented.
  • the compressed air also acts in the same way at the extinguishment of the flame.
  • the apparatus comprises a gas-burner 0, with an incandescent mantle 0, which is surrounded bya cage of round or prismatic strips of glass arranged close to one another or provided with intermediate spaces; further, a mixing-tube m, which has openings 19, that may be controlled by an annular register or slide in the well-known manner, the ignitingtube 1', the compressed-air nozzle t, gas-nozzle Z, double valve g g, forming a shut-ofi, spring f, gaschamber a, compressed-air chamber 19, gas-passage c, compressed-air passages q and o", elastic diaphragm e, and regulating-screw or needle-valve h.
  • the passage 7" can itself evidently be provided with a regulating-screw or needle-valve.
  • the diaphragm is composed of material non-decomposable by air or gas and can for that purpose be made of different layers.
  • the passage 0 is connected with the gassupply pipe, which is provided with a small regulating or sh u t-oif cook.
  • the compressed air passage (1 is by means of a pipe controlled by a suitable cock connected with an aircompression apparatus of desired form.
  • the pressure of the air is maintained higher than that of the illuminating-gas and is set to a certain pressure through the medium of a regulating-valve.
  • the method of operation is as follows:
  • the illuminatinggas passes in the well-known manner through the passage 0 to the gaschamber a, around the valve g, and arrives at the igniting-flame through the valve-controlled passage in the ignitingtube i, which is ready to ignite the gas and air mixture as soon as the same issues from the lower part of the burner.
  • compressed air is let in, which then passes into the mixing-tube m and tends to carry forward with it all gas deposits.
  • the elastic diaphragm and the spring are raised in order to open the gas-valve g.
  • outflowing gas is immediately taken up by the compressed air and conducted to the igniting-flame in such a way that no explosive mixture remains in the mixing-chamber, and consequently a backlash of the flame is prevented.
  • the gas and compressed air together rush through the mixing-chamber m, whereby more air is caused to be admitted through the openings 19, and the mixture issuing from the upper part of the burner is ignited by the igniting-flame.
  • Toputoutthelight thecompressed air is let off from the supply-pipe or is so far reduced that the gas-pressure,in connection with the spring f, moves the diaphragm e downward and closes the valve g, but opens valve g, so that the igniting-flame again burns full, and the incandescent burner is ready for the next lighting.
  • the diaphragm and spring must be strong enough in order to leave the valve g open when under a certain pressure and to close the same as soon as this pressure is reduced. This is necessary in order that the compressed The p air, which still, after closing of the valve g, passes through the nozzle t into the mixingchamber, will cause the remaining gas in the apparatus to be led out with a rush, and thus the explosive-like noise and the backlash of the flame are prevented.

Description

No. 626,558. Patented June 6, I899.
E. H. C. OEHLMANN.
GAS LIGHTING APPARATUS.
(No Model.)
A ironuz rs.
'TH: NORRIS warns co morofima WASHINGTON, n cy lhvirnn STATES PATENT UFFICE.
EMIL HEINRICH CONRAD OEHLMANN, OF BERLIN, GERMANY.
GAS-LIGHTING APPARATUS.
SPECIFICATION forming part of Letters Patent No. 626,558, dated June 6, 1899.
Application filed March 10,1898- Serial No. 673,297. (N0 11106813 T0 all whont it may concern:
Be it known that I, EMIL HEINRICH CoN- RAD OEHLMANN, a citizen of the Empire of Germ any, residing at Berlin, in the Kingdom of Prussia and Empire of Germany, have invented certain new and useful Improvements in Gas-Lighting Apparatus, (for which I have made applications for patents in Germany, filed December 31, 1897; in Austria, filed December 31, 1897; in Hungary, filed January 2, 1898; in Belgium, filed January 8, 1898; in France, filed January 4, 1898; in Denmark, filed December 31, 1897; in Sweden, filed January 3, 1898; in Switzerland, filed January 1, 1898; in Italy, filed January 4:, 1898; in Great Britain, filed January 7, 1898, and in Norway, filed January 10, 1898,) of which the following is a specification.
This invention relates to gas-lighting apparatus of that class in which compressed air is used for raising the illuminating power of the as.
The object of the invention is to provide an automatic gas shut-oft arranged below the burner, which shut-off is worked by com pressed air in such a way that at the formation of the flame the compressed air rushes with such force through the mixing-chamber and burner that the backlash of the flame and the explosive noise which is often produced thereby are prevented. The compressed air also acts in the same way at the extinguishment of the flame.
In the accompanying drawing a vertical section of the apparatus is shown.
The apparatus comprises a gas-burner 0, with an incandescent mantle 0, which is surrounded bya cage of round or prismatic strips of glass arranged close to one another or provided with intermediate spaces; further, a mixing-tube m, which has openings 19, that may be controlled by an annular register or slide in the well-known manner, the ignitingtube 1', the compressed-air nozzle t, gas-nozzle Z, double valve g g, forming a shut-ofi, spring f, gaschamber a, compressed-air chamber 19, gas-passage c, compressed-air passages q and o", elastic diaphragm e, and regulating-screw or needle-valve h. The passage 7" can itself evidently be provided with a regulating-screw or needle-valve. The diaphragm is composed of material non-decomposable by air or gas and can for that purpose be made of different layers.
The passage 0 is connected with the gassupply pipe, which is provided with a small regulating or sh u t-oif cook. The compressed air passage (1 is by means of a pipe controlled by a suitable cock connected with an aircompression apparatus of desired form.
The pressure of the air is maintained higher than that of the illuminating-gas and is set to a certain pressure through the medium of a regulating-valve.
The method of operation is as follows: The illuminatinggas passes in the well-known manner through the passage 0 to the gaschamber a, around the valve g, and arrives at the igniting-flame through the valve-controlled passage in the ignitingtube i, which is ready to ignite the gas and air mixture as soon as the same issues from the lower part of the burner. For the purpose of placing the incandescent burner in proper working condition compressed air is let in, which then passes into the mixing-tube m and tends to carry forward with it all gas deposits. Upon a certain pressure of air, which compressed air passes through the passage 1 into air-chamber b, the elastic diaphragm and the spring are raised in order to open the gas-valve g. outflowing gas is immediately taken up by the compressed air and conducted to the igniting-flame in such a way that no explosive mixture remains in the mixing-chamber, and consequently a backlash of the flame is prevented. The gas and compressed air together rush through the mixing-chamber m, whereby more air is caused to be admitted through the openings 19, and the mixture issuing from the upper part of the burner is ignited by the igniting-flame. Toputoutthelight,thecompressed air is let off from the supply-pipe or is so far reduced that the gas-pressure,in connection with the spring f, moves the diaphragm e downward and closes the valve g, but opens valve g, so that the igniting-flame again burns full, and the incandescent burner is ready for the next lighting.
The diaphragm and spring must be strong enough in order to leave the valve g open when under a certain pressure and to close the same as soon as this pressure is reduced. This is necessary in order that the compressed The p air, which still, after closing of the valve g, passes through the nozzle t into the mixingchamber, will cause the remaining gas in the apparatus to be led out with a rush, and thus the explosive-like noise and the backlash of the flame are prevented.
Having thus described my invention, what I claim is- The combination with a gas-chamber, of a mixing-tube and an ignition-tube in communication with such gas-chamber, a valve controlling such communication, a compressedair chamber comprising a pressure device, whereby the compressed air is made to operate said valve, and a compressed-air conduit 15 opening into said air-chamber and into said mixing-tube, substantially as set forth.
In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.
EMIL HEINRICH CONRAD OEHLMANN.
Witnesses:
- O. H. DAY,
HENRY HAsPEm
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