The London journal of arts and sciences (and repertory of patent inventions) [afterw.] Newton's London journal of arts and sciencesWilliam Newton 1844 |
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Beliebte Passagen
Seite 195 - An Act for amending an Act passed in the fourth year of the reign of His late Majesty, intituled " An Act for the better administration of justice in His Majesty's Privy Council, and to extend its jurisdiction and powers.
Seite 196 - Office, against the extension. (3) If her Majesty shall be pleased to refer any such petition to the Judicial Committee of the Privy Council, the said Committee shall proceed to consider the same, and the petitioner and any person who has entered a caveat shall be entitled to be heard by -himself or by counsel on the petition.
Seite 143 - If the invention has already been made public in England, by a description contained in a work, whether written or printed, which has been publicly circulated, in such case the patentee is not the first and true inventor within the meaning of the statute, whether he has himself borrowed his invention from such publication or not; because we think the public cannot be precluded from the right of using such information as they were already possessed of at the time the patent was granted.
Seite 143 - Encyclopaedia, or other work in general circulation. The question will be, whether, upon the whole evidence, there has been such a publication as to make the description a part of the public stock of information...
Seite 196 - And whereas doubts have arisen touching the power given by the said recited Act of the sixth year of the reign of his late Majesty in cases where the patentees have wholly or in part assigned their right ; be it enacted, That it shall be lawful for Her Majesty, on the report of the Judicial Committee, to grant such extension as is authorized by the said Act and by this Act, either to an assignee or assignees or to the original patentee or patentees, or to an assignee or assignees and original patentee...
Seite 114 - ... the normal acid. When the plate has been immersed a few seconds in the acid, it is taken out by means of the glass holder, taking care to keep it as much as possible covered with the solution, and it is immediately placed horizontally upon a stand, and as much acid as the plate can hold is poured upon it from the bottle ; it is then heated •with a spirit-lamp, but without attaining the boiling-point.
Seite 215 - In one instance a clear and beautiful ruby colour was produced, limited in a well-defined manner to the drapery, while all other parts were green. To succeed well in the first process, viz., that for fixation and the production of the pearly appearance, the impression should be carried as far as possible without solarization, the solution of the...
Seite 214 - ... a pearly transparent appearance. The whitening and cleaning up of the picture, by this process, is far more beautiful than by the ordinary method of fixation by a deposit of gold. A small portrait, fixed in this way, more than a year since, remains unchanged, and continues to be the admiration of persons interested in this art.
Seite 113 - Fahrenheit. The plate must remain in the capsula half an hour, during which the solution is heated now and then, and agitated. During that time the following acid solution, which will be called normal acid, must be prepared ; it is composed as follows : — Water 600 parts, nitric acid 45 parts, solution of nitrite of potassa 12 parts, solution of common salt 45 parts.
Seite 151 - Durham, doctor in philosophy, for an improved mode of directing the passage of and otherwise dealing with the noxious vapours, and other matters arising from chemical works in certain cases.