Journal of the Franklin Institute, Volume 9Pergamon Press, 1845 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
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Page 98
... proportions of the different parts of my improved mule , as well as the materials of which the same may be composed , may be varied . according to the discretion of the workman employed in constructing the same , without departing from ...
... proportions of the different parts of my improved mule , as well as the materials of which the same may be composed , may be varied . according to the discretion of the workman employed in constructing the same , without departing from ...
Page 113
... proportion as they contain more oxide of lead ; besides which they rapidly lose their brilliancy by use . Fusibility , Cooling , Annealing , Devitrification . - All glass is more , or less , fusible ; when it is softened by the action ...
... proportion as they contain more oxide of lead ; besides which they rapidly lose their brilliancy by use . Fusibility , Cooling , Annealing , Devitrification . - All glass is more , or less , fusible ; when it is softened by the action ...
Page 115
... proportion of the foreign and injurious materials which it may contain . This test , which is still farther facilitated by the small size of the glass - pots , which in Bohemia do not contain more thau from 120 to 200 lbs . of calcined ...
... proportion of the foreign and injurious materials which it may contain . This test , which is still farther facilitated by the small size of the glass - pots , which in Bohemia do not contain more thau from 120 to 200 lbs . of calcined ...
Page 116
... proportion of the me- tallic impurities , and even , approximately , the alkaline contents of the potash tested , are ascertained ; and thus its commercial value can be directly obtained . In the mines of the Böhmerwaldgebirge , the ...
... proportion of the me- tallic impurities , and even , approximately , the alkaline contents of the potash tested , are ascertained ; and thus its commercial value can be directly obtained . In the mines of the Böhmerwaldgebirge , the ...
Page 123
... proportions in nature , it needs no farther explanation of the scientific value of their most thorough possible ... proportion as the machine moves slower , or faster , it is evident that the necessary relation be- tween its speed ...
... proportions in nature , it needs no farther explanation of the scientific value of their most thorough possible ... proportion as the machine moves slower , or faster , it is evident that the necessary relation be- tween its speed ...
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Popular passages
Page 258 - 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 92 - What we claim as our invention, and desire to secure...
Page 43 - Happy is the man that findeth wisdom, and the man that getteth understanding. For the merchandise of it is better than the merchandise of silver, and the gain thereof than fine gold.
Page 153 - Committee appointed to inquire into the merits of the atmospheric system of railway have examined the matters to them referred, and have agreed to the following Report. Your Committee have given their best attention to this interesting subject.
Page 105 - ... constructed and arranged substantially in the manner and for the purpose herein set forth.
Page 305 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 371 - I claim the manner in which the bricks are received, compressed, and delivered ; but what I do claim as my invention, and which I desire to secure by letters patent, is the...
Page 266 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Page 177 - ... with the solid portion of the coal. From the chemical changes which take place in the combination of the hydrogen with oxygen, the bulk of the products is found to be to the bulk of the atmospheric air required to furnish the oxygen, as 10 is to 11.
Page 99 - Having thus fully described my invention, what I claim therein as new, and desire to secure by letters patent, is...