. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . ning about 22 cwt. ofmelted metal. Great care is requisite to prevent any particles of foreign matter or dirt from gettinginto the clay ; for if that were to happen, the pot would not last its time, but would most likelygive way when first heated to the working temperature. After i)eing made, a pot remains in thesame room for a year, the temperature being maintained at G0° Fahr., and it is then removed to awarme»room, where it remains in a temperature of 90
. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . ning about 22 cwt. ofmelted metal. Great care is requisite to prevent any particles of foreign matter or dirt from gettinginto the clay ; for if that were to happen, the pot would not last its time, but would most likelygive way when first heated to the working temperature. After i)eing made, a pot remains in thesame room for a year, the temperature being maintained at G0° Fahr., and it is then removed to awarme»room, where it remains in a temperature of 90° until it is wanted. When required for use,it is taken to the pot-arch to be baked, where the heat is gradually increased to thnt of the meltingfurnace, to which it is conveyed whilst red hot. as quickiy as possible, by means of a carriage or acrowbar on wheels, and placed on one side of the fire-grate. This operation is repeated until allthe pots are fixed in the melting furnace. The furnace ends arc now closed, with the exception ofthe fii-e-hole at each end. A small portion of cuUet, or broken glass, is put into each pot, and. 3245.
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Keywords: ., bookcentury1800, bookdecade1870, bookidsp, booksubjectengineering
