PRESERVING WOOD.
Mr Nicholas Charles Szerelraey, wellknown as an inventor of processes for the preservation of stone, has patented a process for the preservation of wood, which he describes as follows :— In order to preserve railway sleepers, and wood generally, from white ants, Teredo navalis, dry rot, and decay from any othsr cause, I dissolve in fifty gallons of boiling water ten pounds of powdered potash and forty pounds of powdered lime ; in another one hundred and fifty gallons of cold water I mix forty pounds of sulphuric acid ; afterwards I mix tha two liquids together : this is compound No. 1. Again, I boil in. an iron pot fifty gallons of crude petroleum, forty pounds of aspbaltum, and thirty pounds of powdered lime, and after half an hour's boiling, I mix with them one pint of sulphuric acid : this is compound No. 2. I immerse the railway sleepers or timber in the liquid No. 1. for a quarter of an hour, or I coat them with a large tar brush and dry them for a day or iwo. Afterwards I coat the sleepers or timber with a tar brush well on all sides with the composition No. 2, in a hot state.
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Bibliographic details
Nelson Evening Mail, Volume IV, Issue 58, 11 March 1869, Page 2
Word Count
202PRESERVING WOOD. Nelson Evening Mail, Volume IV, Issue 58, 11 March 1869, Page 2
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