The Technologist. Ed. by P.L. Simmonds, Volume 6Peter Lund Simmonds 1866 |
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Parole e frasi comuni
abundant acid acres appears Araucaria Aubergier bagasse bark barrels Bessemer process boxes British British Columbia cane capsules Cariboo Cascade range cent coal collected colony colour commerce contains cotton crop cultivation district dyeing employed England Exhibition exported extracted feet fibre fish flax forests France fruit give gluten Gobelins gold grammes grow hatched heat important inches incisions India iron juice kilogrammes labour land leaves less Liége manufacture material matter Messrs miles mill Moreton Bay morphia moulds mountain mulberry narcotine nature nearly obtained opium paper peat pepsine pieces pine plant pond poppy present produced pulp purpose quantity rags resin Savonnerie season seed silk soil spawn species specimens steel stream substances sugar supply tapestry timber tion tons trade tree trout truffles turpentine United Kingdom vegetable weight wine wood wood pulp yield
Brani popolari
Pagina 105 - In spring the clover has vanished, the leaves of the thistles have extended along the ground, and the country still looks like a rough crop of turnips. In less than a month the change is most extraordinary ; the whole region becomes a luxuriant wood of enormous thistles, which have suddenly shot up to the height of ten or eleven feet, and are all in full bloom.
Pagina 105 - The road or path is hemmed in on both sides; the view is completely obstructed ; not an animal is to be seen; and the stems of the thistles are so close to each other, and so strong, that, independent of the prickles with which they are armed, they form an impenetrable barrier. The sudden growth of these plants...
Pagina 99 - Wessenfeld, and several experiments give the following results : "1. It is not only possible to produce every variety of paper from the blades of Indian corn, but the product is equal and in some respects even superior to the article manufactured from rags. " 2. The paper requires but very little size to 'render it fit for writing purposes, as the pulp naturally contains a large proportion of that necessary ingredient, which can at the same time be easily eliminated if desirable. "3. The bleaching...
Pagina 366 - ... where the scattered trees are found in a native state, the woods of which being fallen, the trees are suffered to remain on the ground till they become rotten, and perish. In the course of twelve months after the first season, abundance of young pimento plants will be found growing vigorously in all parts of the land, being, without doubt, produced from ripe berries scattered there by the birds, while the fallen trees, &c., afford them both shelter and shade.
Pagina 100 - Indian corn paper, (maishalm papier, as the inventor calls it,) is now in course of construction at Pesth, the capital of the greatest Indian corn growing country in Europe. Another manufactory is already in full operation in Switzerland, and preparations are being made on the coast of the Mediterranean for the production and exportation on a large scale of the pulp of this new material.
Pagina 102 - ... and of which an unlimited supply may be obtained. I will now enumerate a few of the different substances which I have examined for the purpose of discovering a proper substitute for rags. Rags containing about 50 per cent. of vegetable fibre, mixed with wool or silk, are regarded by the paper-makers as useless to them, and several thousand tons are yearly burned in the manufacture of prussiate of potash. By a simple process, which consists in boiling these rags in caustic alkali, the animal fibre...
Pagina 155 - ... was ejected in a similar manner, and the contents of the tub stirred with the hand. After the lapse of a minute, the water was poured off, with the exception of sufficient to keep the ova submerged, and fresh water supplied in its place. This also was poured off, and fresh substituted previous to removing the impregnated spawn to the boxes prepared for its reception. The ova were placed in the boxes as nearly similar to what they would be under the ordinary course of natural deposition as possible...
Pagina 131 - ... world. The principal entrance for men and horses is by an opening at the bottom of a hill, through a long passage hewn in the rock, which, by a steep descent, leads down to the lowest vein of coal. The greatest part of this descent is through spacious galleries, which continually intersect...
Pagina 103 - ... that. Six tons of flax straw are required to produce one ton of flax fibre, and by the present mode of treatment all the woody part is lost. By my process the bulk of the flax straw is lessened by partial cleaning before retting, whereby about 50 to 60 per cent, of shoves (a most valuable cattle food) are saved, and the cost of the fibre reduced. By the foregoing it will be seen that the flax plant only produces from 12 to 15 per cent, of paper pulp. All that I have said about flax is applicable...