Modern electro plating The principles involved in depositing gold, silver, nickel, copper, brass and other metals, by means of batteries or dynamos; the preparation and management of plating baths, chemicals used, etc . d they shouldbe kept in a dry, even temperature (6o° to 8oc F.).Freezing would stop the action of the battery. The Bunsen, or Carbon Battery, Fig. 3, consistsof a glass jar containing a hollow zinc cylinder, sliton one side to allow a free circulationof the solution; within this stands aporous cup containing a bar of charge this battery, the amalga-mated zinc is place
Modern electro plating The principles involved in depositing gold, silver, nickel, copper, brass and other metals, by means of batteries or dynamos; the preparation and management of plating baths, chemicals used, etc . d they shouldbe kept in a dry, even temperature (6o° to 8oc F.).Freezing would stop the action of the battery. The Bunsen, or Carbon Battery, Fig. 3, consistsof a glass jar containing a hollow zinc cylinder, sliton one side to allow a free circulationof the solution; within this stands aporous cup containing a bar of charge this battery, the amalga-mated zinc is placed in the glass jar,,the porous jar in the center of thezinc cylinder and the carbon in theporous jar. In the outer jar is sul-phuric acid, diluted with twelve timesits weight of water, and in the por-ous jar electropoion fluid. (See Electropoion Fluid.)The voltage of this battery is ; its amperagecannot be given, as it depends largely upon the carewhich is given the battery, the size of the cell and thecondition of the porous cups, which vary greatly inporosity and conducting power. It emits fumes ofhydrogen and sulphurous acid if not in good conditiomand should not be used in the same room with line tools. Fig- s- MODERN ELECTRO PLATING. IQ or metal work that is liable to injury. It soon runsdown, requiring recharging every day when in constantuse, but it is simple to handle when understood, and isgenerally furnished in small outfits for nickel plating,etc., on account of its high voltage and the quantity ofcurrent given off when in good order. The zincs mustbe kept well amalgamated or they will polarize veryrapidly and destroy the current; care should also betaken that no sediment be allowed to accumulate in theporous cup and fill its pores, thus stopping the action. Itis more expensive to run than the gravity, as the zincsare eaten by the acid much faster, especially if not keptwell amalgamated; but it will deliver a greater quantityof current in a given time than a gr
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectelectro, bookyear1897
