A Paper Insulator.
Paper-pulp impregnated with liquid silica has been introduced m America as an insulator for covering electric light wires. Wo may also mention that paper-pulp is now made by macerating straw or wood m dilute milk of lime, and after twelve hours, digesting it with sulphurous acid under a pressure of four or five atmospheres. In two hoars the material is loosened, and after being washed m water and again treated under pressure with three per cent, of chloride of calcium, and a half per cent, of aluminum sulphate, dissolved m a little water, the stuff obtained resembles cotton, and serves for the manufacture of fine cotton.
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https://paperspast.natlib.govt.nz/newspapers/MS18841011.2.21.6.1
Bibliographic details
Manawatu Standard, Volume IV, Issue 270, 11 October 1884, Page 5 (Supplement)
Word Count
109A Paper Insulator. Manawatu Standard, Volume IV, Issue 270, 11 October 1884, Page 5 (Supplement)
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