The Scientific review (and Scientific and literary review) and Journal of the Inventors' institute, Volumes 1 à 21866 |
Expressions et termes fréquents
action afford ammonia amount aniline animal apparatus application atmosphere battery become body bridge cable carbonic acid carriages cast iron cause cent chloric acid chloride Clark coal colour combustion compound considerable considered construction containing copper effect electricity employed engine ether experiments fact Fahr formic acid fuel gases give glass gun-cotton gutta-percha heat hydrochloric acid hydrogen important inches increase Institute invention inventors labour less letters patent light lines locomotive machine manufacture matter means ment metal miles mode motion motive elements nitric acid object obtained ordinary oxalic acid oxide oxygen Patent Law plate portion practical present principle produced purpose quantity R. A. Brooman rails railway render scientific ship soda solution steam steel substances sulphur sulphuric acid surface temperature tion tube vapour velocity vessel W. E. Newton weight wheels wire zinc
Fréquemment cités
Page 76 - Give a man the secure possession of a bleak rock, and he will turn it into a garden ; give him a nine years' lease of a garden, and he will convert it into a desert.
Page 133 - We have already seen a new era in the history of the construction of bridges, resulting from the use of iron ; and we have only to examine those of the tubular form over the Conway and Menai Straits to be convinced of the durability, strength, and lightness of tubular constructions applied to the support of railways or common roads, in spans which, ten years ago, were considered beyond the reach of human skill. When it is considered that stone bridges do not exceed...
Page 2 - Dy the use of sulphuret of calcium. The latter is formed very easily by mixing uncalcined powdered gypsum with one-fourth of its weight of calcined gypsum, and powdered pit coal equal to one-third of the whole of the gypsum used, and working up the mixture to a stiff dough with water ; next forming it into pieces four inches long, two wide, and one and...
Page 59 - The adoption of locomotive power upon this little line is very important, and has evidently been a very successful experiment. The cheapness with which such a line can be constructed, the quantity of work that can be economically performed upon it, and the safety with which the trains run over it, render it an example which will, undoubtedly, be followed sooner or later in this country, in India, and in the colonies, where it is desirable to form cheap lines for small traffic, or as a commencement...
Page 6 - For the match-heads a mixture of chlorate of potash and a compound of hyposulphurous acid with soda, ammonia, and oxide and sub-oxide of copper. This compound is formed by dividing a solution of copper into two equal parts, supersaturating one of them with ammonia, and the other with hyposulphate of soda ; then mixing the two solutions, and stirring the mixture well, a violet powder precipitates. One part of it is to be mixed with 2 parts of the chlorate of potash, and a small quantity of pounded...
Page 77 - If the House came to a decision that they intended to retain the Patent Law, then he should confidently recommend the amendments which the Commission had proposed as better qualified than any others in their opinion to meet the inevitable inconvenience which arises from the continuance of the law. But the House ought first to have an opportunity fairly and deliberately of deciding upon that larger question which had not been submitted to the Patent Law Commission — namely, whether it was expedient...
Page 133 - ... feet in width, without any support at the middle of the stream. Even spans, greatly in excess of this, may be bridged over with safety, provided we do not exceed 1800 to 2000 feet, when the structure would be destroyed by its own weight.
Page 10 - I may observe that travellers are by no means aware of the almost daily improvements that are gradually going on throughout the entire rolling stock and permanent way of railways. They would more fully appreciate these improvements if- they could run out of a first-class line, at a high speed, on to one of the old original lines, such as the Liverpool and Manchester, with its rattle and jolting. Now, indeed, it is' far more safe for one to be continually travelling than to pass an active life under...
Page 73 - God bless the Prince of Wales, the Princess of Wales, and the rest of the Royal Family.
Page 95 - Dr Mortimer says that it was imported by means of two white calves, which a farmer at Poplar sent for, in order to cross his own breed ; and that it spread into Berkshire by means of two cows that were brought out of Essex. The other account is, that one of our tanners bought a parcel of distempered hides in Zealand, which were forbidden to be sold there, and should have been buried, and thus he transplanted this dreadful disease here. ' Thus by one man's unlawful gain,' says Mr Layard, ' if by this...