I claim First The apparatus and mode of applying the same for heating the inner ; nd outer surface of timber stonciently t open the pores of the wood and extract the sap and gaseous matter as herein described for the purposes s ecified. Second I claim opening the pores of timber by applying heat in the manaer herein deserioed. so that oily resinous or bituminous substances will penetrate the wood to its fullest capacity. scientific american, 1865-08-12
I claim First The apparatus and mode of applying the same for heating the inner ; nd outer surface of timber stonciently t open the pores of the wood and extract the sap and gaseous matter as herein described for the purposes s ecified. Second I claim opening the pores of timber by applying heat in the manaer herein deserioed. so that oily resinous or bituminous substances will penetrate the wood to its fullest capacity. scientific american, 1865-08-12
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