. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1847.] THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 355 alterable colours. G. The application of the above-described colours to the process cf painting and printing on paper-hangings. 7. The application of the above-described colours and dryer to the process of polished painting. 8. The mixture of the above colours with other unalterable colours, with or without the dryer, for the purpose of ob- taining anj' desired shade of colour. JAPANNING METALS. Walton, of Wolve
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1847.] THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 355 alterable colours. G. The application of the above-described colours to the process cf painting and printing on paper-hangings. 7. The application of the above-described colours and dryer to the process of polished painting. 8. The mixture of the above colours with other unalterable colours, with or without the dryer, for the purpose of ob- taining anj' desired shade of colour. JAPANNING METALS. Walton, of Wolverhampton, Staffordshire, japanner and tin-plate worker, for "an Improved mode of coaling or conring, or of coating, covering, and ornamenting the surfaces of articles mliicfi are or may be made of wrought iron, or of other metal or metals ; which improved mode may be used in substitution of japanning, tinning,or other modes, now in common use, of coating, covering, or of coating, covering. Olid ornamenting such ;—(iranted February 24 ; Enrolled Aug. 24, 1S47.—[Reported in Newton's London ;^ This invention relates to coating the surfaces of wrought iron, or other malleable metal that will bear a strong red heat without injury (such as brass or copper), so as to furm a glazed enamelled surface either plain or ornamented. The first preparation is to clean the surfaces of the articles, by first subjecting tliem to a red heat in an annealing oven, or in a muffle, ac- cording to their size, for about half an hour, to dissipate all liquid or greasy matter, and oxidate the surfaces. The oxide is removed by rubbing with sand-stone, or scrapers. When cleaned, the articles are to receive a first coat of partially vitrifiable materials, which is poured in a semi-liquid state over the surface of the article, and dis- tributed evenly; the article is then placed in an ordinary japanner's stove, heated to 180°, and left therein until all moisture is gradual
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