The Repertory of patent inventions [formerly The Repertory of arts, manufactures and agriculture]. Vol.1-enlarged ser., vol.40, Volume 101771 |
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alkaline alloy alumina apparatus applied arrangement baryta blast blast furnaces caoutchouc carriages cast-iron chamber chloride chloride of magnesium claim colour combination compound condensing construction cotton County of Middlesex cylinder drawing elastic employed Engineer ENGRAVING Enrolled fabric fibrous floating pier fluid furnace gangues Gentleman gutta percha heat hydrochloric acid immerse improvements in machinery india rubber invention consists iron July 29 June 15 lever lime liquid machine magnesia magnesium manganese manner manufacture Maplin Sands material means ments metal Middlesex mixture mode motion moulds muriate obtained operation ordinary oxide pass Patent granted pipe piston placed plate potash presents pressure produce purpose quantity railway reverberatory furnace rollers screw Sealed shaft sheet shown side soda solution Specification spring steam substances sugar suitable sulphate sulphuret sulphuric acid surface temperature thereof tinfoil tion tube upper vacuum-pan valve vapour vessel vulcanized weight wheels zinc
Popular passages
Page 216 - Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is (d).
Page 182 - Having thus described the nature of my invention, and the manner of performing the same, I would have it understood that I do not confine myself to the details...
Page 283 - Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed...
Page 213 - I immerse it in a boiling and concentrated solution of chloride of zinc, for a period varying from one to five minutes, according to the strength of the solution. And in either case I afterwards wash the materials well in some alkaline solution or in soft water.
Page 144 - Having now described the nature of my invention, and the manner in which the same is to be performed, I would have it understood that I...
Page 58 - Francis Bowes Stevens, of Hoboken, in the county of Hudson, in the State of New Jersey, in the United States of America, engineer, for improvements in applying means and apparatus to ships and vessels to improve their speed.
Page 163 - I convey them by stone-ware tubes into a leaden chamber, in order to combine them into sulphuric acid by the usual means. I take care that the heat is not raised so high at first as to melt the sulphate of lime in the cylinder, but I increase it towards the end of the operation, the charge becoming more infusible when, partly decomposed.
Page 165 - ... before described for the decomposition of the sulphate of baryta. The mixture is then heated, exposed to steam, stirred, and the operation conducted in all respects in the manner described for the treatment of the sulphate of baryta. When a specimen of the charge shows by the usual tests that it contains no notable proportion of the sulphate undecomposed, the operation is completed. I then withdraw the charge, lixiviate it with hot water, and when the clear solution of aluminate of potash or...
Page 167 - ... with the current of steam which has entered by the other pipe, and ascends with it through the column of highly heated alumina. In its passage the alkaline base of the muriate combines with the alumina, forming an aluminate of potash or soda, and the muriatic acid, together with any...
Page 166 - ... the operation is to be conducted in all respects in the same manner as that just described for the sulphates of potash and soda. But owing to the great volatility of the muriates of potash and soda when exposed at a high temperature to a current of air or steam, a large quantity of the muriate will escape with the steam and gases of the fire in the state of vapor undecomposed, and will be lost or will be difficult to condense. I prefer, therefore, to effect the decomposition of the muriates of...