Records of the School of Mines and of Science Applied to the Arts, Volum 1,Part 2

Portada
H.M. Stationery Office, 1853
 

Altres edicions - Mostra-ho tot

Frases i termes més freqüents

Passatges populars

Pàgina 347 - Fathers, 1 Furnace, and 2 Forges, in the Chase of Pensnet, in Worcester-shire, but Wood and Charcole, growing then scant, and * Pit-coles, in great quantities abounding near the Furnace, did induce me to alter my Furnace, and to attempt by my new Invention, the making of Iron with Pitcole...
Pàgina 348 - After I had made a second blast and tryal, the fesibility of making Iron with Pit-cole and Sea-cole, I found by my new Invention, the quality to be good and profitable, but the quantity did not exceed above 3 Tuns per week...
Pàgina 347 - Bellows, by which way they could make but one little lump or bloom of Iron in a day, not 100 weight, and that not fusible, nor fined, or malliable, until it were long burned and wrought under Hammers, and whose first slag, sinder or scorius, doth contain in it as much, or more Iron, then in that day the workman or bloomer got out...
Pàgina 347 - ... the ore sufficiently to make it " render much worse iron, than that made with char-coal, though not perhaps so much " worse, as the body of coal it-self would possibly doe.
Pàgina 209 - The Bottom coal usually rests on a bed of fire-clay some feet in thickness. In many instances, however, this is wanting, and the coal rests on hard sandstone, the change from one material to the other being sometimes very abrupt
Pàgina 348 - I also made all sorts of cast iron Wares, as Brewing-Cysterns, Pots, Morters, and better and cheaper than any yet were made in these Nations, with Charcoles...
Pàgina 347 - Whereas now they will make two or three tuns of " cast iron in 24 hours ; leaving the slag so poore, that the founders cannot melt them " again to profit. Not to mention the vast advantage they have from the new invention " of slitting mills, for cutting these barrs into rodds, above what they had antiently.
Pàgina 347 - Blewstonc, a high German, who built his furnace at Wednesbury, so ingeniously contrived that only the flame of the coal should come to the oarc, with several other conveniences, that many were of opinion he would succeed in it.
Pàgina 347 - ... from hence, thought not only fit for the kitchen, but all other offices, even to the parlour and bedchamber; and not only in private families, but now too in most if not all the mechanic professions (except the ironworks...
Pàgina 257 - rock fault" and old Silurian bank is at present uncertain ; it appears, however, either that they extend continuously for three miles to the south of West Bromwich, or that they recur at that distance near Langley Green, as we shall see hereafter when describing the boundary faults. We have in these facts, then, an instance of the unconformity of the Coal-measures both to the Silurian below and the Permian above ; and it is probable that a little...

Informació bibliogràfica