The Civil engineer and architect's journal, scientific and railway gazette . lution by preference composedof four gallons of creosote, one gallon of naphtha, 24 lb. of pitch,and half a gallon of boiled linseed oil. The proporti(m of thismixture used to impregnate the wood is about one gallon to thecubic foot, and the keys should be immersed therein about 24hours. They are then ready for use, unless it he deemed necessaryto subject them to the process of compression. Instead of simpleimmersion in these insoluble matters, the process may be greatlyfacilitated by exhausting the air from the wood
The Civil engineer and architect's journal, scientific and railway gazette . lution by preference composedof four gallons of creosote, one gallon of naphtha, 24 lb. of pitch,and half a gallon of boiled linseed oil. The proporti(m of thismixture used to impregnate the wood is about one gallon to thecubic foot, and the keys should be immersed therein about 24hours. They are then ready for use, unless it he deemed necessaryto subject them to the process of compression. Instead of simpleimmersion in these insoluble matters, the process may be greatlyfacilitated by exhausting the air from the wood in a close vessel,and afterwards forcing the fat composition in under jiressure. 18i8.] THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 30£ IMPROVEMENTS IN MARINE ENGINES AND PROPELLERS. Joseph Maudslay, of the firm of Maudslay, Sons, and Field, of Lambeth, engineers, for ?^Improvements in ohtaining and applyingmotive power and in the machinery and apparatus employed therein.—Granted March 8; Enrolled September 8, 1848. [Reported inthe Mechanics Magazine.] Fig. 1. Fig. Fig. 3. w Fig. 4.
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Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience
