Journal of the Franklin Institute, Band 138Elsevier, 1894 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. |
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Seite 7
... consider- * Resolving power as ordinarily used is defined by the relation ε = ^ / △ where is the smallest angle which can be " resolved , " or the angle as viewed from the objective between two fine lines or points so close together as ...
... consider- * Resolving power as ordinarily used is defined by the relation ε = ^ / △ where is the smallest angle which can be " resolved , " or the angle as viewed from the objective between two fine lines or points so close together as ...
Seite 31
... consider what may be termed private enterprises . With the exception of mining and a few others , we might include most all such enterprises as involve engineering to a considerable extent under the term manufacturing . Before entering ...
... consider what may be termed private enterprises . With the exception of mining and a few others , we might include most all such enterprises as involve engineering to a considerable extent under the term manufacturing . Before entering ...
Seite 32
... consider the earliest history of the introduction of steam . for power , involving the work of Hero , of Savery , of New- comen and of others , but I cannot avoid making some men- tion of James Watt , for , if we enumerate the important ...
... consider the earliest history of the introduction of steam . for power , involving the work of Hero , of Savery , of New- comen and of others , but I cannot avoid making some men- tion of James Watt , for , if we enumerate the important ...
Seite 35
... consider further what was the work of the early days - of Watt , of Fulton , of Stephenson , and of the host of other men who had a part in introducing and developing the steam engine - let us consider what have been the later ...
... consider further what was the work of the early days - of Watt , of Fulton , of Stephenson , and of the host of other men who had a part in introducing and developing the steam engine - let us consider what have been the later ...
Seite 37
... consider , and that with very short cut - offs the effect of cylinder con- densation was to bring about a waste of steam ; so that , for every different engine running under definite conditions as to steam pressure , back pressure , etc ...
... consider , and that with very short cut - offs the effect of cylinder con- densation was to bring about a waste of steam ; so that , for every different engine running under definite conditions as to steam pressure , back pressure , etc ...
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Beliebte Passagen
Seite 433 - And, he gave it for his opinion, that, whoever could make two ears of corn, or two blades of grass, to grow upon a spot of ground where only one grew before, would deserve better of mankind, and do more essential service to his country, than the whole race of politicians put together.
Seite 34 - I intend in many cases to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common fire-engines.
Seite 441 - The Government then of the United States can claim no powers which are not granted to it by the Constitution; and the powers actually granted must be such as are expressly given, or given by necessary implication.
Seite 307 - Mendeleeff, which states that the properties of the elements are periodic functions of their atomic weights.
Seite 443 - Any person who has invented or discovered any new and useful art, machine, manufacture, or composition of matter...
Seite 356 - With the standards of the people plunging through the thunder-storm; Till the war-drum throbbed no longer, and the battle flags were furled In the Parliament of man, the Federation of the world.
Seite 439 - Provided also, and be it declared and enacted, That any declaration before mentioned shall not extend to any letters patents and grants of privilege for the term of fourteen years or under, hereafter to be' made, of the sole working or making of any manner of new manufactures within this realm...
Seite 440 - ... any manner of new manufactures within this realm to the true and first inventor and inventors of such manufactures, which others at the time of making such Letters...
Seite 440 - ... and grants shall not use, so as also they be not contrary to the law nor mischievous to the state, by raising prices of commodities at home, or hurt of trade, or generally inconvenient, the said fourteen years to be accounted from the date of the first letters...
Seite 443 - ... not patented or described in any printed publication in this or any foreign country before his invention thereof, or more than two years prior to his application, and not in public use or on sale in this country for more than two years prior to his application, unless the same is proved to have been abandoned, may, upon payment of the fees required by law and other due proceedings had.