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French Liard for Lubrication

The French compound, called liard, is thus made: Into 50 parts of finest rape oil put 1 part of caoutchouc, cut small. Apply heat until it is nearly all dissolved. of oil and fat; by saponification it yields oleic acid. Almond or olive oil is agitated in a stout bottle with 7 or 8 times its weight of strong alcohol specific gravity 793, at nearly the boiling point, until the whole is dissolved; clear fluid is decanted from the stearine which the solution is allowed to cool, after which the has been deposited, and after filtration, the spirit is removed by distillation at a gentle heat. By exposure at a very low temperature becomes pure. it deposits any remaining stearine, and then 1544. Bavarian Anti-Friction Composition. This composition has been em- 1551. Το Refine Oil for Fine Mechanployed in Munich with success and economy ism. Refined oil for fine mechanism can be to diminish friction in machinery. It consists of prepared by putting zinc and lead shavings, in 10½ parts pure hog's lard melted with 2 parts equal parts, into good Florence olive oil, and finely pulverized and sifted plumbago. The placing in a cool place till the oil becomes lard is first to be melted over a moderate fire, colorless. (See No. 1495.) then the plumbago is thoroughly mixed in, a aterproofing. Numerous plans have been invented for ren- W handful at a time, with a wooden spoon, and stirred until the mixture is of a uniform composition. This is applied in its cold state with a brush to the pivots, the cogs of the wheels, &c., and seldom more than once in 24 hours. dering cloth and felting waterproof; the best It was found that this composition replaced methods adopted are given in the following satisfactorily the oil, tallow and tar used in receipts: certain iron-works, and saved about four-fifths of the cost of those articles.