The Repertory of Arts and Manufactures Volume 6

The Repertory of Arts and Manufactures Volume 6

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1797 edition. Excerpt: ...retorts to the receivers, or vermicular tubes. The apparatus being thus prepared, vegetable bodies, either wood, bark, or other vegetable substances, are to be placed in the retorts, and fire applied thereto, of sufiicient heat to expel or evaporate the volatile matter"m" the receivers, (whether through a vermicular tube or otherwise, ) produces the afcringent acid liquid ting air into the retbrts, so as to consume the charcoal to ashes, they will, by difiblution in water, produce a fixt salt, and leave an earthy substance. In order to produce the liquid in larger quantities, and of greater Ptrength than can be procured by placing the wood, bark, and other vegetable bodies, in their natural state, in the retorts, the same will be efl"erFted by firfc saturating such wood, bark, and other vegetable bodies, in a liquor impregnated with aluminous, nitrous, and vitriolous earths, either in their natural form, or in a purified Pcate. In witness whereof', Scc. TO all to whom these presents shall come, Szc. Now KNOW YE that, in compliance with the said proviso, and in pursuance of the said fiatute, I the said James Jordan do hereby declare, 'that my inyention confists in suspending to an arch or arches, in manner herein after described, bridges, (with or without draw-bridges therein, ) aquedudts, the tops or coverings of buildings and other erecftions, instead of the methods heretofore adopted for conftrucfting and supporting them; whereby the weight or weights thereof will be sus pended, so as to leave the parts under the same, between the buttrefiias 'oriother end supports of 'bridges and aquedutfts, and between the walls or other enclosures of buildings and other erecftions, nearly as free asif no such. bridge, aquedud, top xor-covering;...show more

Product details

  • Paperback | 60 pages
  • 189 x 246 x 3mm | 127g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236654323
  • 9781236654328