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1. –
This preparation, destined for impregnating leather shoe soles, is
produced as follows: Grind 50 parts of linseed oil with 1 part of
litharge: next heat for 2 hours to the boiling point with ¾ part of zinc
vitriol, which is previously calcined (dehydrated). The composition
obtained in this manner, when perfectly cold is mixed with 8 parts of
benzine and filled in bottles or other receptacles. To render this
preservative effective, the soles must be coated with it until the
leather absorbs it. |
