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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Results 1-5 of 99
Page 41
... amount of money that has been received from members , and in ordinary donations . The conductors of the richly endowed establishments of Europe , will , no doubt , smile when we tell them that it is less than an average of six thousand ...
... amount of money that has been received from members , and in ordinary donations . The conductors of the richly endowed establishments of Europe , will , no doubt , smile when we tell them that it is less than an average of six thousand ...
Page 42
... amount of about forty thousand dollars for account of the principal and interest of the sum thus contracted for had been made , when , owing to our inability to meet the interest , and maintain our organization , we were compelled to ...
... amount of about forty thousand dollars for account of the principal and interest of the sum thus contracted for had been made , when , owing to our inability to meet the interest , and maintain our organization , we were compelled to ...
Page 115
... amount of alkali , without at all indica- ting the nature and 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 ...
... amount of alkali , without at all indica- ting the nature and 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 ...
Page 129
... amounts to about 1 per cent . of the liquor obtained during the distillation of the coal . When gas - works were first established the coal was distilled in iron retorts , but it has been found more economical to substitute vessels of ...
... amounts to about 1 per cent . of the liquor obtained during the distillation of the coal . When gas - works were first established the coal was distilled in iron retorts , but it has been found more economical to substitute vessels of ...
Page 132
... amount for leakage , & c . From the following table it will be perceived that this little vessel requires an extraordinary degree of pressure to acquire any thing like velocity , and although no correct account of her consumption of ...
... amount for leakage , & c . From the following table it will be perceived that this little vessel requires an extraordinary degree of pressure to acquire any thing like velocity , and although no correct account of her consumption of ...
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acid ammonia apparatus applied arrangement atmosphere attached boiler bottom cane sugar carbonic carbonic acid carriage cast iron cause cent centre chamber claim coal color combination committee connected consists constructed copper cutter cylinder daguerreotype deposited described desire to secure dextrin diameter effect employed engine exhibited experiments explosion feet fire flue force frame FRANKLIN INSTITUTE friction furnace gases glass heat horizontal hydrogen improvement inches inclined plane invention iron joint letters patent lever liquid machine manner manufacture means metal mode molasses operation oxide pass Philadelphia piece pipe piston placed plate present pressure produced puddling furnace purpose quantity rails railway rollers screw secure by letters shaft side silica slide solution specific gravity specimens steam stove substantially sugar sulphuric acid surface temperature thickness Third Premium tion tons tube upper valve velocity vertical vessel weight wheel whole wood zinc
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 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...