Scientific.

Waikato Times, Volume XXVII, Issue 2200, 14 August 1886, Page 2 (Supplement)

Scientific.

Paper Pi rss, — In, Vienna, there 'were recently exhibited gas and water service pipes made of paper. The same kind of pipes will do for many factory purposes, and for laying electrical wires. The pi pea are made as follows : Strips of paper are,saken, the width of .which corresponds with the length of one pipe section. The paper is ' drawn through melted asphalt, ao^ wound upon a. mandrel that' determines, the inner \ diameter of the pipe. , When- the pipe thus made has cooled, i^isjnillod off fcho mandrel, and the insiders' covered -with a kind of ename|, whose/nature ia kept secret by the, makers. J)\e outside ispaintetf with asphal^ varnish, and dusted over with sand. , ; It ie seated that such la .pipjßt Ml\ resi^b, 6,000 pound* internal pressure, ,tnougb. tfyo thfcknesB<of the stuff, is, onty about f .half at* mob.< This plight be a. good thing, for- h^dntalio pines out in. the V^estern regions. ■ T#e Prkser>atjoji of Wood.— Le Genie .Civil says' :-pMt.,kostat, a French contractor, preserves wood of all kinds by piling the WQodin a trench or trough, Gove.ring it with quicklime, and sprihk ling it with water, ,The lime Water not' only preserves the .wood from decay,but makes' it harder and,, stronger. M J . Macion proposes A to pres,ejrye wood by> injec,tiqg,the following antiseptic 1 liquors-: —Ist. Ablution .of 106 grams of *rsenic v aoid f au/I %COO grams of phenie acid! ill 100 jilpipQf,, water,. • ,2nd. A solution o^ 10,6Q0 grams. of ferrous sufphate in 100 litters of welter; a,fter having prepared the wood for the .injection by the action of a, steamy jet. , ;,...,, . AsjfUALTisD,JiTr^— According to the Journal, 4es Kal>rie»nbS;,deß Papier, a material called^ asphalted jute Ms* beilig largely employed in Germany for- cover* ing' roofs, for iaolatiug walls and fioors,£*nd fpr preyeqting bad odours from reaching, aparttngntq situated, over stables, &q. It consists of stropg jute cloth coated with spftcia^y-prepared^ hsphaltum, ;and cpvered on, each side with strong asphaltnui coated paper. In order to obtain a very compact product the whole is submitted tOi a very strong pressure. ' sP.inb.Qil.— Oil from pine wood is now manufactured on a considerable scale ih' ' America. The » material ' is- subjected to intense heat in-? sealed retorts, and on*f cord of it is said to* yjeld .fifteen gallons of turpentine, eighty gallons of pintf wood oil, fifty bushels of chaecoal.ttne hundred and fifty gallons of wood vinegar, and a quantity of iuflammablegas and asphiltunij *, .-,'' , Oriental Licqukr*— Japanese lacquer ware, known the world over as the most superb f&r beauty and- quality, is made from lacquer furnished by the sap of the ithus vemicifera, a tree cultivated Especially for this product. It is a' dirty, gray, viscous liquid,, wlrichjis retried by straining and' decaubation. It is abso-' lutely; necessary for the lacquered articles to be .dried in a damp atmosphere to insure, the requisite hardness. A Usb for Cork.™ A German inventor has ' Utilised cork in' the manufacture of fancy articles by a novel process. Powdered cork is mixed with starch and water, and the mass kndaded while boiling hot until thoroughly mixed ; it is then poured into modds, and afterwards dried at a very highttmperature. ' ♦' De LEBSfcr.s say-s that England i$ supporting eighty -two million cattle, sheep, and hogs upon cereals .she herself raises, while she imports -flour from America to feed her people, V ■• . '