Hi all, From 1895 Louis Denayrouze French polytechnician an engineer filed patents for incandescent burners using hydrocarbons gas. On june 9.1899 he deposited patent N°289.752 of a new burner for fiften years. He will improve it regularly and make additions to the 1899 patent. Arund 1905 a new ful appared the "Lusol". Wich was produced by distilling the coal tar. Mr Louis Denayrouze born in Aveyron on May 17.1848 died on February 20.1910 in Paris. The Boler house, prominent at the time in Paris, proposed around 1903/1905 lamps on which it installed the incandescent burner using hydrocarbons gas patented by Denayrouze around until 1910 with advertisings. Perhaps there has been a commercial agrement betwen the Denayrouze Lighting Company and the Boler house to distibute the incandescent burner by Denayrouze hydrocarbon gas and "Lusol" fuel, but there is no evidence for today. I discovered this lamp in Val d'Oise in January 2020. All the documents of the Boler catalog "Lusol" (no dating) by the Denayrouze burner system and the 1903 Baccarat catalog are the rendering of discutions With Mr Ara Kebapcioglu "La lumière de l'oeil" in Paris. I thank him again very warmly Mr Ara for having provided me with and authorizing the use of this precious documents and especially for his analysis and the presentation of old documents, Mr Ara and with great kindness, he is a living encyclopedia of light. I warmly thank our dear Conny Carlson for having provided me to use her patent documents and the precious exchanges for this pretty Boler lamp N°24 with precious 1903 Baccarat E251 glass globe and signed "Boler Lusol" glass tube with Denayrouze incandescent gas burner. Pictures of technicals details and action light.......... Louis Denayrouze Mr Ara Original documents. Mr Ara Original documents. Mr Ara Original documents Mr Ara original documents Mr Ara original documents Conny Carlson,Casimages documents: Denayrouze Boler burner lamp patent.jpg - Casimages.com
The Boler glass tube measures: Height: 151 mm. Diamater: 54 mm. Lamp measures: Height: 76 cm with glass globe. 74 cm without glass globe. Weight: 4,5 Kg without fuel. Diameter of tank: 16 cm. Tank capacity: 1 Liter. Thank you for sharing. Regards, Titoo.
Great lamp and great work and write up Patrick! Yes, Louis Denayrouze is a great inventor of the first incandescent burners. He launched over 100 lamp/burner related patents from 1895 to 1910. He had a series of pressure lamp patents, many both imaginative and innovative. It is a pity that probably none of them were brought to production. If so, it would be a sensation to find one. Except for the "Boler" type of incandescent burner Denayrouze also made a burner that was especially adopted in South America; Uruguay and Argentina. Attached you find an image from a catalogue of the "Comalumbra" lamp! The fuel for this lamp is called "Denayrouzine", indicating the source of this burner. /Conny
